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User Manual: SCX1100

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SAMSUNG
INKJET PRINTER(MFP)
SCX-1100

SERVICE

Manual

INKJET PRINTER(MFP)

CONTENTS

1. Precautions
2. Specifications
3.

Disassembly and Reassembly

4. Troubleshooting
5. Exploded Views and Parts List
6. Block Diagram
7. Connection Diagram

ELECTRONICS

This service manual is also provided on the web,
the ITSELF system Samsung Electronics Co., Ltd.
“http://itself.sec.samsung.co.kr”

© Samsung Electronics Co.,Ltd. March 2001
Printed in Korea.
VERSION NO. : 1.02

CODE : JB-0023A

- This Service Manual is a property of Samsung Electronics Co.,Ltd.
Any unauthorized use of Manual can be punished under applicable
International and/or domestic law. -

This manual is stated and
provided for service description.
All rights reserved. Any parts of the
information in this manual are prohibited
from free duplication, use or translation
without prior written approval except in
cases allowed by the Copyright Act.
Specifications are subject to change without
prior notice.

Samsung Electronics Digital Printing CS Group
Copyright (c) 2002. 3.

1. Precautions
Please read the following carefully to prevent any accidents and not to damage the unit during service.

1-1 Safety Precautions
1. Safety Precautions
There are some electric or machinery parts with safety
related property. If the parts replaced are different from
the original, the safety may not function. Even if the part
could allow higher voltage than that of the part used, do
not replace it and use a regular product clarified in specifications.
2. Be careful not to leave a switch, a cover or a safety device
out when reinstalling or assembling the product after
repair.

3. Replacing Precautions
Do not change or add parts as you like. You cannot benefit from such a remodeled product at your will during the
term of guarantee.
4. You must replace overheated or damaged parts or cords
with regular products. Please solve the problem causing
any damage or overheating and troubles beforehand.

Especially mind the safety on the part with this
mark.
You must use regular parts described in specifications for the parts inflammable and where the current can be flown. Otherwise any hazard such as
an electric shock or a fire could occur.

1-2 Precautions on Disassembly and Reassembly
Very careful precautions should be taken when replacing
parts. Before replacing, please check cables because you
cannot put the cables that you removed for replacing parts
into the proper place if you would not make sure of where
they were connected and in which condition.

7. When disassembling, assembling, also observe small
components are located in place.
8. If you uncover and turn the machine over to replace some
parts, toner or paper particles may contaminate the LSU
window. Protect the LSU window with clean paper.

Please do the following before disassembling
for a repair or replacement of parts.
1. Pull out paper cassette, printer cartridge installed.
Especially careful not to be scratched by the surface of
developer or not to expose them to light.
2. Turn the power switch off.
3. Take out the power plug, printer cable from the printer.
4. Use only the same type of part as original when replacing
parts.
5. Do not force to open or fasten plastic material components.
6. Be careful that small parts such as screws should not get
in the printer.

Samsung Electronics

Releasing Plastic Latches
Many of parts are held in
place with plastic latches.
The latches break easily :
release them carefully.
To remove such parts, press
the hook end of the latch
away from the part to which
it is latched.

1-1

Precautions

1-3 ESD Precautions
Certain semiconductor devices can be easily damaged by
static electricity. Such components are commonly called
“Electrostatically Sensitive (ES) Devices”, or ESDs.
Examples of typical ESDs are: integrated circuits, some field
effect transistors, and semiconductor “chip” components.
The techniques outlined below should be followed to help
reduce the incidence of component damage caused by static electricity.
CAUTION:
Be sure no power is applied to the chassis or circuit, and observe all other safety precautions.

1. Immediately before handling a semiconductor component or semiconductor-equipped assembly, drain off any
electrostatic charge on your body by touching a known
earth ground. Alternatively, employ a commercially available wrist strap device, which should be removed for your
personal safety reasons prior to applying power to the unit
under test.
2. After removing an electrical assembly equipped with
ESDs, place the assembly on a conductive surface, such
as aluminum or copper foil, or conductive foam, to prevent electrostatic charge buildup in the vicinity of the
assembly.

4. Use only an “anti-static” solder removal device. Some solder removal devices not classified as “anti-static” can
generate electrical charges sufficient to damage ESDs.
5. Do not use Freon-propelled chemicals. When sprayed,
these can generate electrical charges sufficient to damage ESDs.
6. Do not remove a replacement ESD from its protective
packaging until immediately before installing it. Most
replacement ESDs are packaged with all leads shorted
together by conductive foam, aluminum foil, or a comparable conductive material.
7. Immediately before removing the protective shorting
material from the leads of a replacement ESD, touch the
protective material to the chassis or circuit assembly into
which the device will be installed.
8. Maintain continuous electrical contact between the ESD
and the assembly into which it will be installed, until completely plugged or soldered into the circuit.
9. Minimize bodily motions when handling unpackaged
replacement ESDs. Normal motions, such as the brushing together of clothing fabric and lifting one’s foot from a
carpeted floor, can generate static electricity sufficient to
damage an ESD.

3. Use only a grounded tip soldering iron to solder or desolder ESDs.

1-2

Samsung Electronics

Precautions

1-4 Tools for Troubleshooting
The following tools are recommended for safe and smooth troubleshooting described in this service manual.

1 DVM(Digital Volt Meter)

Standard: Indicates more than 3 digits.

4 Pinset

Standard: For general home use, small type.

5 Cotton Swab

Standard : For general home use, for medical service.

2 Electronic Scale

Standard: Equipment to check the weight of consumables supplied by Samsung Electronics.
(The gram unit can be measured.)

Equipments a IPA(Isopropyl
6 Cleaning
Alcohol)dry cloth or a soft stuff neutral
detergent.

3 Driver

Standard: "-" type, "+" type (M3 long, M3 short,
M2 long, M2 short).

7 Software(Driver) installation CD ROM

Note

Samsung Electronics

Mind your hands not to be touched when you
disassemble and reassemble PBA ASS'Y, such as
the main board.

1-3

2. Specifications
2-1 Printer Engine
Technology

Color Thermal Inkjet

Engine Type

2-Pen (K and CMY)

Operating System

Windows 95/98/2000/Me/XP

Interface

USB (without HUB Mode), Centronics 1284

Emulation

HBP(GDI)

Print Speed

(2)

Print Resolution (H x V)

Mono

14 ppm Draft / 10 ppm Normal

Color

7 ppm Draft / 2 ppm Normal

Quick

300 x 600 dpi

Normal

600 x 600 dpi

High Quality

2400(H) x 1200(V) dpi (Addressable)

Maximum Paper Size

A4, Letter, Legal, Banner

Effective Printing Width

8.0'' (203 ± 1mm)

Feeding Method

Automatic

100 Sheets (Maximum stacking height : 9mm)

Manual Tray

No

Output Tray Capacity

Maximum 30 sheets

Maximum Cable Length

USB Cable, Max 6ft

(3)

Note:

(2) Speed claims based on the test files: spdtstc.sam(mono), spdtstc2.sam(color)/Letter size
(3) Non-standard cable can cause misoperations.

2-2 Ink Cartridge

Babbage mono standard

Birch color

Model No.

M50

C60

Print Head

208 nozzles

192 nozzles

Ink type

Pigment

Dye

Ink Color

Black (Babbage)

Color (Birch)

Ink Yield

about 1075 sheets (5% Pattern, A4)

about 275 sheets (15% Pattern, A4)

Samsung Electronics

2-1

Specifications

2-3 Copier
Scanner Type

Flat-bed without ADF (Automatic Document Feeder)

Maximum Original Size

A4/Letter

Maximum Paper Size

A4/Letter/Legal

Maximum Scan Width

216 mm

Optical Resolution (HxV)

600 x 600 dpi

Copy Quality

Draft, Normal, Best

Paper Type Selection

Plain, Glossy, Transparency

Mono Copy Speed

(1)

Draft: 10cpm

Color Copy Speed

(1)

Draft: 5cpm

Effective Print-edge Margin

Top: 3.4mm, Bottom: 19.05mm, Each Side: 6.5mm(LTR), 3.5mm(A4)

Multi copy

99 pages (Memory Multi copy)

Zoom Rate

25 % ~ 400 % (1 % Step)

Contrast Control

3 Steps

Ink Saver Mode

Use Draft Mode (<20 % Savings)

Auto Sensing

Check Paper Jam , Low Ink

Note:
(1) Speed claims based on the test chart : Printed spdtstc.sam(mono), Printed spdtstc2.sam(color)/Letter size

2-4 Scanner
Operation System

Windows 98/Me/2000/XP

Interface

USB (without HUB Mode) and Centronics 1284

Compatibility

TWAIN Standard.

Device

Platen Color CCD

Scan Width

Max.: 8.5” (216 mm), Effective: 8.2” (210 mm)

Color Depth

Internal 36 bit, External 24 bit

Optical Resolution (H x V)

600 x 1200 dpi

Interpolation Resolution

Max. 4800 dpi

Pre-scan Mode

Yes, 75 dpi

Scan Speed

about 2'30 sec/A4 True Color
(Pentium II 300M, 64MB Memory, 300dpi)

2-2

Samsung Electronics

Specifications

2-5 Power Supply
Rated AC Input Voltage

110 ~ 240 VAC (Universal)

Rated Input Frequency

50 ~ 60 Hz

Minimum/Maximum AC Input

90 VAC/265 VAC

Maximum Input Current

0.5 A

DC Channels

+3.3V +5%, +30V +10%

(4)

(2 Channels)

External Power On/Off Key

Power Down Key (It does not cut the primary power input off)

Note:
(4) No load condition.

2-6 Dimension
Machine Size (W x D x H, mm)

477(W) X 415(D) X 252(H)

Machine Weight

About 8.5 Kg (Machine itself)

2-7 Environmental Condition
Absolute Storage Temperature(5)

-20oC ~ 55oC

Absolute Storage Humidity(5)

10% RH ~ 90% RH

Recommended

Temperature

5oC ~ 40oC

Operating Condition

Humidity

15% RH ~ 85% RH

Note:
(5) Packing Condition

Samsung Electronics

2-3

3. Disassembly and Reassembly
3-1 General Precautions on Disassembly
When you disassemble and reassemble components, you
must use extreme caution.

Whenever servicing the machine, you must perform as follows:

The close proximity of cables to moving parts makes proper
routing a must. If components are removed or replaced, any
cables disturbed by the procedure must be replaced as close
as possible to their original positions.

1. Check to verify that documents are not stored in memory.
2. Unplug the power cord.
3. Use a flat and clean surface.
4. Replace only with authorized components.
5. Do not force to remove or planten plastic-material components.
6. Make sure all components are in their proper position.

Before removing any component from the machine, note the
cable routing that will be affected.

3-2 Scanner Ass'y
1. Remove two screws securing the rear cover.

3. Remove two screws securing the main cover.

2. Open the front door from the main cover.

4. Pull the scanner ass'y upward then, unplug the two
connectors and CCD cable.

Note : You should connect or remove the CCD cable vertically to avoid the CCD cable pin damage.

samsung Electronics

3-1

Disassembly and Reassembly

5. Pull the platen cover upward and remove it.

8. Remove two screws securing the scan upper and
remove it.

6. Pull the OPE cover upward and remove it.

9. Unlatch the scan lawer securing the scan upper and
remove it.

7. Remove five screws securing the OPE upper and
unplug the one connector from the OPE panel.

10. Remove the two screws securing the scan upper.

3-2

samsung Electronics

Disassembly and Reassembly

11. Unlatch the scan dummy and take out the glass
from the scan upper.

14. Pull up the CCD shaft and take out the scanner
module.

12. Remove the CCD cabl.

15. Remove two screws and take out the motor bracket.

13. Push the belt holder and take out the belt, as
shown below.

16. Remove two screws securing the scan motor and
remove it.

samsung Electronics

3-3

Disassembly and Reassembly

3-3 OPE Unit
1. Before you remove the ope unit, you should remove:
• Scanner Ass'y
(see page 3-1)

4. Remove two screws securing the OPE upper to the
LCD board.

2. Pull the OPE cover upward and remove it.
Take out the LCD window from the OPE cover.

5. Remove the contact rubber from the OPE upper.

3. Remove five screws securing the OPE upper to the
OPE PBA.

6. Remove the Key pad from the OPE upper.

3-4

samsung Electronics

Disassembly and Reassembly

3-4 Rear Cover
1. Before you remove the rear cover, you should
remove:
• Scanner Ass'y
(see page 3-1)

4. Remove the rear cover, as shown below.

2. Pull the extension guide upward and remove it.

3. Remove four screws securing the rear cover.

samsung Electronics

3-5

Disassembly and Reassembly

3-5 SMPS
1. Before you remove the SMPS, you should remove:
• Scanner Ass'y
(see page 3-1)
• Rear Cover
(see page 3-5)

3. Pushing down the hooks on both ends, pullout the
SMPS.

2. Unplug the one connector from the main PBA.

3-6 Engine Ass'y
1. Before you remove the engine ass'y you should
remove:
• Scanner Ass'y
(see page 3-1)
• Rear Cover
(see page 3-5)

3. Remove the three screws securing the engine ass'y
and remove it.

2. Unplug the SMPS connector and cover open sensor
connector from the main PBA.

3-6

samsung Electronics

Disassembly and Reassembly

3-7 ASF Feeder
1. Before you remove the asf feeder, you should
remove:
• Scanner Ass'y
(see page 3-1)
• Rear Cover
(see page 3-5)
• SMPS
(see page 3-6)

3. Remove three screws securing the ASF feeder to the
main cover.
Take out the ASF feeder.

2. Make sure the harness is released from the hooks,
as shown below.

samsung Electronics

3-7

Disassembly and Reassembly

3-8 Cartridge Ass'y
1. Before you remove the cartridge ass'y you should
remove:
• Scanner Ass'y
(see page 3-1)
• Rear Cover
(see page 3-5)
• Engine Ass'y
(see page 3-6)
• ASF Feeder
(see page 3-7)

4. Take out the emcoder strip, as shown below.

2. Rotate to remove both springs securing the carrier
shaft. Then take out the carrier shaft.

5. Push the holder pulley to the right and take out the
belt.

3. Remove the C-cab.
6. Take out the cartridge carrier from the main frame.

3-8

samsung Electronics

Disassembly and Reassembly

3-9 Carrier Motor
1. Before you remove the carrier motor, you should
remove:
• Scanner Ass'y
(see page 3-1)
• Rear Cover
(see page 3-5)
• Engine Ass'y
(see page 3-6)
• ASF Feeder
(see page 3-7)
• Cartridge Ass'y
(see page 3-8)

3. Remove two screws securing the carrier motor and
take out the motor from the main frame.

2. Unplug the one connector from the main PBA.

samsung Electronics

3-9

Disassembly and Reassembly

3-10 Main PBA
1. Before you remove the main PBA, you should
remove:
• Scanner Ass'y
(see page 3-1)
• Rear Cover
(see page 3-5)
• Engine Ass'y
(see page 3-6)
• ASF Feeder
(see page 3-7)
• Cartridge Ass'y
(see page 3-8)

4. Pull the sensor lever backward and take out the main
PBA, as shown below.

2. Unplug all connectors from the main PBA.

3. Remove the two screws securing the main PBA.

3-10

samsung Electronics

Disassembly and Reassembly

3-11 Holder Roller
1. Before you remove the holder roller, you should
remove:
• Scanner Ass'y
(see page 3-1)
• Rear Cover
(see page 3-5)
• Engine Ass'y
(see page 3-6)
• ASF Feeder
(see page 3-7)
• Cartridge Ass'y
(see page 3-8)
• Main PBA
(see page 3-10)

3. Pull the holder downward and take it out from the
main frame.

2. Unlatch the holder by pushing the parts hooked to
the main frame using a sharp tool.

3-12 Home Ass'y
1. Before you remove the home ass'y you should
remove:
• Scanner Ass'y
(see page 3-1)
• Rear Cover
(see page 3-5)
• Engine Ass'y
(see page 3-6)
• ASF Feeder
(see page 3-7)

3. Unlatch the home ass'y by pushing the parts hooked
to the main frame using a sharp tool. Take out the
home ass'y from the main frame.

2. Remove one screw securing the home ass'y.

samsung Electronics

3-11

Disassembly and Reassembly

3-13 Base Frame
1. Before you remove the base frame, you should
remove:
• Scanner Ass'y
(see page 3-1)
• Rear Cover
(see page 3-5)
• Engine Ass'y
(see page 3-6)
• ASF Feeder
(see page 3-7)
• Cartridge Ass'y
(see page 3-8)
• Main PBA
(see page 3-10)
• Hold Roller
(see page 3-11)
• Home Ass'y
(see page 3-11)

4. Remove the exit roller from the main frame and take
out the exit belt.

2. Remove the four springs and take out the four roller
frictions, as shown below.

5. Unlatch the base frame ass'y by pushing the parts
hooked to the main frame using a sharp tool, as
shown below.

3. Take out the actuator feed from the main frame, as
shown below.

3-12

samsung Electronics

Disassembly and Reassembly

3-14 Feed Roller
1. Before you remove the feed roller, you should
remove:
• Scanner Ass'y
(see page 3-1)
• Rear Cover
(see page 3-5)
• Engine Ass'y
(see page 3-6)
• ASF Feeder
(see page 3-7)
• Cartridge Ass'y
(see page 3-8)
• Main PBA
(see page 3-10)
• Hold Roller
(see page 3-11)
• Home Ass'y
(see page 3-11)
• Base Frame
(see page 3-12)

2. Turn the bearing feed counterclockwise and take out
the base frame and feed roller from the main frame.

3-15 Line Feed Bracket Ass'y
1. Before you remove the LF bracket ass'y, you should
remove:
• Scanner Ass'y
(see page 3-1)
• Rear Cover
(see page 3-5)
• Engine Ass'y
(see page 3-6)
• ASF Feeder
(see page 3-7)
• Cartridge Ass'y
(see page 3-8)
• Main PBA
(see page 3-10)
• Hold Roller
(see page 3-11)
• Home Ass'y
(see page 3-11)
• Base Frame
(see page 3-12)
• Feed Roller
(see page 3-13)

samsung Electronics

2. Remove two screws and take out the LF bracket
ass'y from the main frame.

3-13

4. Troubleshooting
4-1 Setting-up System in User Mode
FUNCTION

LANGUAGE
POWER SAVE MODE
PAPER SIZE
PAPER TYPE
MAINTENANCE

KEY SOUND

ITEM

ENG/GER/FRE/ITA/SPA/POR/DUT
1/4/8/12 HOUR
LETTER/A4/LEGAL
PLAIN/INKJET/PHOTO/TRANSPARENCY
CLEAN CARTRIDGE
ALIGN CARTRIDGE
VIEW INK LEVEL
HELP LIST
DEFAULT SETUP

ADJUST SHADING
ON/OFF

DEFAULT

ENGLISH
1
A4
PLAIN PAPER

"COLOR : _/8 , BLOCK : _/8"
CONTRAST
QUALITY
COPY PAGE
ZONE RATE
RESOLUTION
ON

4-2 Setting-up System in Service Mode
• How to enter service mode
In service (tech) mode, the technician can check the machine and perform various tests to isolate the cause of a malfunction.
To enter the service mode, press ENTER, LEFT, RIGHT, LEFT, SETUP in sequence, and the LCD displays ‘ T ’, the machine
has entered service (Tech) mode.
To return to normal user mode, press ENTER, LEFT, RIGHT, LEFT, SETUP in sequence again, or turn the power off, then
on by unplugging and plugging the power cord.
Because the explanation of the User Mode items is already mentioned at the User guide in detail, It will not be described at
Service manual.

Samsung Electronics

4-1

Troubleshooting

FACTORY SELFTEST
Using this pattern printout, you can check if the printer
mechanism is functioning properly. Examine the pattern
and look for a break in the diagonal line. If the diagonal
lines are not broken, the printer mechanism is functioning
properly.

ROM TEST
Use this feature to test the machine'S ROM. The result and the
software version appear in the LCD display.

PRINT NVRAM TEST
1. Press the SETUP button until “PRINT NVRAM DUMP”
is displayed in LCD.
2. Press the START button when the NVRAM Test operation menu displayed. And then the machine prints the
list for NVRAM testing.
The Remote Test feature can be enabled in order to allow
a remote location to call up and run a diagnostic test on
your machine. You may be instructed by a service representative to enable this feature.
NVRAM DUMP LIST
LIST Left Head Detect
Right Head Detect
Left Head Type
Right Head Type

:
:
:
:

1c
7
1c
7

< Device Identification >
MFG:Samsung;
CMD:LNPAP;
MODEL:SCX-1100;
CLASS :Printer;
DES:Samsung SCX-1100;
< Dot Count Variables >
Black Dot Count
Color Cyan Dot Count
Color Magenta Dot Count
Color Yellow Dot Count
Photo Black Dot Count
Photo Cyan Dot Count
Photo Magenta DotCount

:
:
:
:
:
:
:

2436256
1368128
1368128
1368128
0
0
0

:
:
:
:
:
:
:

2436256
1368128
1368128
1368128
0
0
0

< Page Count Variables >
Total Page Count

:

2

< Cartridge Types >
Left Cartridge Type
Right Cartridge Type

:
:

Color Standard Capacity
Black High Capacity

< Alignment Variables >
Horizontal Align Value
Vertical Align Value
Quick Black Bidi Align Value
Quick Color Bidi Align Value
Normal Black Bidi Align Value
Normal Color Bidi Align Value
Photo Horizontal Align Value
Photo Vertical Align Value
Photo Normal Black Bidi Align Value
Photo Normal Color Bidi Align Value

:
:
:
:
:
:
:
:
:
:

15
8
15
15
15
15
15
8
15
15

Total
Total
Total
Total
Total
Total
Total

PROGRAM DOWNLOAD
Use this feature to download a new upgraded ROM file from
a PC which is connected to the machine with a parallel cable
(IEEE 1284).

Black
Color
Color
Color
Photo
Photo
Photo

Dot Count
Cyan Dot Count
Magenta Dot Count
Yellow Dot Count
Cyan Dot Count
Magenta Dot Count
Black Dot Count

< Download >
1. Connect printer to PC with a parallel cable(IEEE 1284.)
2. Select the PROGRAM DOWNLOAD function at the TECH
MODE.
3. Input COPY/B FILENAME PRN at the MS-DOS and push
the ENTER key.
(filename : the latest ROM file name when the downloading)
4. After the download is completed, the system will be automatically initialized.

4-2

Samsung Electronics

Troubleshooting

PRINT CCD PATTERN

WHITE LINES ON LETTERS OR GRAPHICS

It is used to adjust the light of CCD. It is already set at
CCD Test to get optimum quality.

• Cause
If nozzles in print head has a problem, white lines are
marked on the print.
‘CARTRIDGE MAINTENANCE’ will let you know if nozzles have fallen problems.

NOTICE When you test CCD, make sure that the cover is
closed.

1. Press the SETUP button until “Print CCD Pattern” is
displayed in LCD.
2. Press the START button when the CCD Test operation
menu displayed.
3. After scanner calibrating, wave form will be automatically printed out.
All the wave forms should be similar each other. CCD
problems may occur, if:
• More than one of the wave forms are straight lines.
• All wave forms are positioned under the center line.

• Solution
1) Run ‘print control panel’ to “clean print nozzles” and check if
nozzles have been blocked.
2) Wipe with soft cloth the contact surfaces of ink cartridge and carriage, and check if nozzles have been cleaned properly.
3) Separate ink cartridge from carriage and combine them.
Repeat it about 5 to 6 times and check if connection is proper.
4) Replace ink cartridge and check whether there’s a problem
with the head.
5) Check if head cable is inserted well into the main circuit board
and then check if nozzles have problems.
6) Check if head cable is broken or torn and then check if nozzles
have problems.

7) Replace the main circuit board with a new one and
check if nozzles have problems.

If this line is broken, it confirms that nozzles
have problems.

MEMORY ALL CLEAR
Initiating this function will put the system into the factory
shipping state. The procedure is as follows :
1. Unplug power
2. Press and hold " SETUP" button
3. Plug power in
4. Continue holding " SETUP" button until CLEARING
MEMORY message appears on LCD
5. Unplug power
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4-3

Troubleshooting

4-3. Troubleshooting
4-3-1

Defective PC Scan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page(4-5)

4-3-2

Defective Image quality of PC Scan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page(4-5)

4-3-3

Defective Operation (LCD WINDOW

4-3-4

No Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page(4-6)

4-3-5

Defective LCD Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page(4-7)

4-3-6

Defective Operation of Key Button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page(4-7)

4-3-7

Paper Jam . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page(4-8)

4-3-8

Defective Paper Feed (1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page(4-8)

4-3-9

Defective Paper Feed (2) -Display of NO PAPER . . . . . . . . . . . . . . . . . . . . . . . . .page(4-9)

4-3-10

Multi-Feeding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page(4-9)

4-3-11

Defective Sensing-ink . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page(4-10)

4-3-12

Defective Sensing-paper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page(4-10)

4-3-13

Defective Motor Drive (LF) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page(4-11)

4-3-14

Defective Motor Drive (CR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page(4-11)

4-3-15

Defective Motor Drive (Scan) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page(4-12)

4-3-16

Blank Page Print Out (When Copying) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page(4-12)

4-3-17

Vertical Black Line (When Copying) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page(4-13)

4-3-18

Contaminated Stains on Paper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page(4-13)

4-3-19

Bad printed Image . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page(4-14)

4-3-20

Vertical Lines are printed crookedly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page(4-14)

4-3-21

Bad Color (Intensity) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page(4-15)

4-3-22

The Printer is Not Working (1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page(4-15)

4-3-23

The Printer is Not Working (2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page(4-16)

4-3-24

Abnormal Printing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page(4-17)

4-3-25

Spool Error and Release of Spool Error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page(4-18)

) Display . . . . . . . . . . . . . . . . . . . . . . .page(4-6)

• The solutions of troubleshooting in this 'Service Manual' explain the expected causes and
how to check according to each problem and describe how to replace the defected parts (unit
of ASS'Y) if necessary.
• The contents of this 'Service Manual' describe general ones only among many kinds of problems and causes while using the Product.
• The contents of this 'Service Manual' describe mainly technical explanations of the Product
H/W and parts on the assumption that there is no problem in S/W.

4-4

Samsung Electronics

Troubleshooting

4-3-1 Defective PC Scan
• Description

The PC Scan is not functioning at all.

• Location

1.UBS Cable of the Printer or Centronics Cable
Check and Cause

2.Driver

3.Main B’d
Solution

1. Check the Cable (USB or Parallel)

1. If the PC and the cable are not connected properly,
reconnect it.

2. Check if the driver is installed properly.

2. After confirming that it is proper by performing a PC
printing test related to driver setup, if it is not so, reinstall
it. (Refer to User's Manual.)

4-3-2 Defective Image Quality of PC Scan
• Description

The image PC scanned is not clear or bad.

• Location

1. CCD ASS'Y

2.Main B’d

Check and Cause

Solution

1. Check the waveform form by performing a CCD test
in TECH mode. (Refer to 4-1-3)

1. If the CCD waveform form is abnormal, try to replace
CCD ASS'Y.

2. Check if the resolution is set too low in PC Scan
options. (Refer to User's Manual.)

2. If the resolution is set to low, let the user be acquainted
with the using method well.

Samsung Electronics

4-5

Troubleshooting

4-3-3 Defective Operation (LCD WINDOW

) Display

• Description

Strange characters are displayed on the OPE Panel and buttons are not operated.

• Location

1.OPE ASS'Y

2.Connection between the Main B'D and OPE ASS'Y

Check and Cause

3.Main B'D.

Solution

1. Clear the memory.

1. Try again after clearing the memory.

2. Check if OPE HARNESS is connected to the Main
Board correctly.

2. After confirming that OPE HARNESS is connected to
the Main Board correctly, if it is so, then replace the
OPE ASS'Y and Main Board in sequence.

4-3-4 No Power
• Description

While the power S/W is turned on, it does not work at all.

• Location

1.Power code
3.Power ASS'Y

2.Connection between the Main B'D and Power HARNESS
4.Main B'D.
5.OPE Ass’y

Check and Cause

Solution

1. Check if the connection of power code is normal.

1. Try to replace the power code.

2. Check if DC +3.3V and +30V is supplied to POWER
ASS'Y from MAIN B'd.

2. If all the connections are correct, try to replace the
power ASS'Y and the Main B/D in sequence.
( +3.3V and +30V is supplied to POWER ASS'Y from
MAIN B'd)

3. Check if POWER DOWN KEY in OPE ASS'Y is
working regularly.

3. Replace OPE ASS'Y

4-6

Samsung Electronics

Troubleshooting

4-3-5 Defective LCD Operation
• Description

The LCD screen is not turned on or has a strange display.

• Location

1.LCD

2.OPE Ass’y

3.Main B’d

Check and Cause

Solution

1. Clear the memory. (Refer to page 4-1).

1. The key is wrong itself or wrongly assembled.

2. Confirm to catch a click sound, while a key on the
OPE panel is pressed on.

2. Even after the key or harness has been replaced, it is
still wrong, try to replace the OPE ASS'Y and the Main
B'D in sequence.

3. Check the status of Harness between LCD and OPE
Panel, replace in order of Main B'd/LE Motor.

4-3-6 Defective Operation of Key Button
• Description

The button of the OPE Panel is not operated..

• Location

1. OPE ASS'Y

2. Main Board

Check and Cause

Solution

1. Confirm to catch a click sound while the key is
pressed on.

1. If you cannot catch a click sound, the key is wrong itself
or wrongly assembled.

2. Check if a specific key is pressed by another equipment.

2. Even after the key has been replaced, it is still wrong,
try to replace the OPE ASS'Y and the Main B'D in
sequence.

Samsung Electronics

4-7

Troubleshooting

4-3-7 Paper Jam
• Description

The paper is jammed inside the set and not exited from.

• Location

ASF ASS'Y
Check and Cause

Solution

1. Check if the paper is crumpled or preprinted.

1. If the papers jammed or pieces of the paper are stuck
inside the set, remove them and then try it again.

2. Check if too many sheets of recording paper are put
into ASF (Automatic Sheet Feeder).
(Standard : up to 100 sheets).

2. If the problem still exists, try to replace ASF ASS'Y.

3. Check if the remaining papers are stuck in the frame
base.

4-3-8 Defective Paper Feed (1)
• Description

A recording paper is tilted while feeding.

• Location

ASF ASS'Y
Check and Cause

Solution

1. Check if the paper guide of ASF (Automatic Sheet
Feeder) is set up properly with the width of recording
paper.

1. After all have been checked, the problem still exists, try
to replace the ASF ASS'Y.

2. Check if too many sheets of recording paper are put
into ASF (Automatic Sheet Feeder).
(Standard: up to 100 sheets).
3. Check if the recording paper is crumpled or preprinted.

4-8

Samsung Electronics

Troubleshooting

4-3-9 Defective Paper Feed (2)-Display of NO PAPER
• Description

paper does not feed into the printer.

• Location

1. ASF ASS'Y

2. Main B’d

3. LF Motor

Check and Cause
1. Press ENTER button to check.

Solution
1. Even if the ENTER button is pressed, a recording paper
is not drawn into, then try to replace the ASF ASS'Y.
2. Even if the ASF Ass’y or harness has been replaced, it
is still wrong, try to replace the Main B’d and the LF
Motor in sequence.

4-3-10 Multi-Feeding
• Description

Multiple-sheets of recording paper are fed at once.

• Location

ASF ASS'Y
Check and Cause

Solution

1. Adjust the paper guide of ASF to the width of paper
correctly.

1. Blow several times of puff into the paper in order to prevent static electricity.

2. Check if the recording paper is preprinted or crumpled.

2. Even after the papers are loaded correctly, if multiple
sheets of paper are still fed at once, then try to replace
the ASF ASS'Y.

3. Check if too many sheets of recording paper are put
into ASF (Automatic Sheet Feeder).
(Standard: up to 100 sheets).

Samsung Electronics

4-9

Troubleshooting

4-3-11 Defective Sensing-ink
• Description

The ink is put in the set, but it cannot sensed.

• Location

1.Cartridge ASS'Y

2.Main B'D

Check and Cause

Solution

1. Check if the cartridge is installed in the cartridge box
properly.
(It makes a click sound normally when it is normal.)

1. Even after the cartridge is installed normally, it still cannot sense, then try to replace the Main B'D.

2. Check if the cartridge box is operated normally.

2. In case the cartridge box is not moved from side to side,
check the Flat Cable connection between the Main PBA
& Frame Home Unit, and even after being connected
properly, if it is still not improved, then try to replace the
cartridge ASS'Y.

3. Check if there is an alien matter in the Dimple contact
point of HEAD of CARTRIDGE BOX

4-3-12 Defective Sensing-paper
• Description

The recording papers are put in already, but it cannot be sensed.

• Location

1.Main B'D

2. LF Motor

Check and Cause
1. Check if the ENTER key on the OPE panel is pressed.

Solution
1. Refer to "Defective Paper Feed".
2. Even if the ENTER key on the OPE panel is pressed, it
still cannot sense, then try to replace the Main B'D and
LF Motor in sequence.

Notes:
The SCX-1100 Product has no paper sensor, instead it
displays ERROR when it cannot pick up the paper.

4-10

Samsung Electronics

Troubleshooting

4-3-13 Defective Motor Drive (LF)
• Description

The motor drive of Line Feeder is not working.

• Location

1.Main B'D

2.LF Motor

Check and Cause

Solution

1. Check if the connector of LF Motor is connected to
the Main B'D normally.

1. Try to replace the Main B'D and the LF Motor ASS'Y in
sequence.

4-3-14 Defective Motor Drive (CR)
• Description

The drive of CR Motor is not working.

• Location

1.Main B'D

2.CR Motor

Check and Cause
1. Check if the connector of CR Motor is connected to
the Main B'D normally.

Samsung Electronics

Solution
1. Try to replace the Main B'D, the CR Motor ASS'Y in
sequence.

4-11

Troubleshooting

4-3-15 Defective Motor Drive (SCAN)
• Description

The Scan Motor is not driven.

• Location

1.Main B'D

2.Scan Motor

Check and Cause

Solution

1. Check if the connector of Scan Motor is connected to
the Main B'D normally.

1. Try to replace the Main B'D and the Scan Motor ASS'Y
in sequence.

4-3-16 Blank Page Print Out (When Copying)
• Description

Blank page is printed out when copying.

• Location

1.CCD ASS'Y

2.Main B'D

Check and Cause

Solution

1. Check if the recording papers are inserted reversely.

1. Insert the paper with the copy side to be faced down.

2. Perform the CCD test in the service mode.
(Refer to 4-1-3)

2. In case the output waveform is abnormal in the CCD
test, replace the CCD ASS'Y, while replace the Main
B'D in normal.

4-12

Samsung Electronics

Troubleshooting

4-3-17 Vertical Black Line (When Copying)
• Description

Vertical black lines occur in the printing.

• Location

1.CCD ASS'Y

2.Main B'D.

Check and Cause

Solution

1. Check the alien matter of flat glass face.

1. If there are some stains on the surface of CCD, wipe
them off with alcohol (IPA).

2. Perform a CCD Test to check if the waveform is normal. (Refer to 4-1-3.)

2. If the CCD waveform is abnormal, replace the CCD
ASS'Y.

3. Clean the cartridge nozzle.

3. Clean the nozzle and confirm again.
4. After confirming the CCD waveform and cleaning the
nozzle, if the vertical black lines still occur, then try to
replace the Main B'D.

4-3-18 Contaminated Stains on Paper
• Description

Contaminated stains on the copied paper occur in the printing.

• Location

1.CCD ASS'Y

2.Main B'D.

Check and Cause

Solution

1. Check the status of document.

1. If the CCD waveform is abnormal, try to replace the
CCD ASS'Y.

2. Check the waveform by performing a CCD test.
(Refer to 4-1-3)

2. In case the CCD waveform is normal but the print quality is bad, try to replace the Main B'D.

Samsung Electronics

4-13

Troubleshooting

4-3-19 Bad Printed Image
• Description

The copied image is light or bad.

• Location

1.CCD ASS'Y
Check and Cause

Solution

1. Check the CCD waveform.
(Refer to 4-1-3)

1. In case the CCD waveform is good, clean the outlet of
cartridge.

2. Test and check the cartridge arrangement.
(Refer to 4-2)

2. In case the CCD waveform is abnormal, try to replace
the CCD ASS'Y.

3. Clean the cartridge nozzle.
(Refer to 4-2)

3. Even after cleaning the outlet of nozzle, the received
data image is still bad, then replace the cartridge.
4. Try to replace the Main B'D.

4-3-20 Vertical Lines are printed crookedly
• Description

The vertical lines are printed crookedly.

• Location

Cartridge
Check and Cause

1. Test and check the cartridge arrangement.
(Refer to 4-2)

4-14

Solution
1. Perform the cartridge arrangement to set up black/color
newly. Repeat it several times until you get the sufficient
condition.

Samsung Electronics

Troubleshooting

4-3-21 Bad Color (Intensity)
• Description

The color is different from the original document in the printing.

• Location

1.Capacity of Ink Cartridge

2.CCD ASS'Y.

Check and Cause

Solution

1. It may occur when the amount of specific ink in the
ink cartridge (color) is deficient.

1. After checking if the capacity of ink cartridge is deficient,
try to replace it.

2. Check the waveform by performing a CCD test.
(Refer to 4-1-3)

2. After having performed a CCD shading test, if it is not
still improved, then try to replace the CCD ASS'Y.

4-3-22 The Printer is Not Working (1)
• Description

While the power is turned on, the printer is not working at all by the PRINT command from the computer.

Check and Cause
1. Perform the Printer Self-Test.

2. Check if the PC and the printer cable are properly
connected.
3. Check if the printer driver is correctly installed.

Samsung Electronics

Solution
1. Check the power source of the printer first and perform the
Printer Self-Test. If the test results in printing, it is considered
as there is no problem in the printer itself. If the printer is not
working, the function may be defective (not due to S/W), so
take another proper measure.
2. Check the status of the printer connection, and if it is defective, replace the printer cable (USB or Parallel).
3. Check the connection between PC and printer port (USB port
or LPT port). Check if the printer driver at the Printers on the
Control Panel is installed. If the printer driver is properly setup,
check in which program the printing is not working. The best
way is to try printing from the Memo pad, the WINDOWS
basic program. Sometimes, the print out is normal within the
WINDOWS basic programs, but it may not work in a specific
program. In such case, reinstall the printer driver.

4-15

Troubleshooting

4-3-23 The Printer is Not Working (2)
• Description

Even after the Print command, there is no response at all or the printing speed is low.

Check and Cause
It may due to wrong setup of the environment rather
than malfunction of the printer itself. And in case that
abnormal characters are printed out, also check the
environment setup.
1. Secure the hard disk space.

Solution
1. Not working with the message 'Insufficient memory' means
that the hard disk space to store the print information is insufficient rather than the RAM insufficiency. In this case, secure
more space for the hard disk.
Secure more space for C drive by using the Disk utilities program at 'PROGRAM - ACCESSORIES - SYSTEM TOOL'
from the Start menu.

2. Printing error occurs even if there is enough space in
the hard disk.

2. The connection of the cable or printer port is not properly
setup.

3. Reboot the system, and try printing again.

3. If characters are printed abnormally, the cable or the printer
driver may be defective. Turn the PC and printer off, and
reboot the system to try printing again. If the problem still
exists, double click to install the printer from My Computer
and right-click the mouse, then click 'Test Print' button at the
bottom of the file information tab. If normal characters are not
printed again, the cable must be defective so replace the
cable with a new one.

4-16

Samsung Electronics

Troubleshooting

4-3-24 Abnormal Printing
• Description

The printing is not working properly even when the cable has no problem.
(even after the cable is replaced)
If the printer won't work at all or strange characters are only printed,
it may be the printer driver problem.
Check and Cause

1. Printer driver error
2. Error due to insufficient memory.
(The printing job sometimes stops during proceeding
or not completed due to insufficient memory.)

Solution
1. Check 'My Computer - Printers'.
(If the printer driver is installed not compatible with the
printer currently installed or an error occurs in the driver
file, remove the existing driver and reinstall the printer
driver by using the 'Printer Add' menu.
2. This is because of an insufficient virtual memory.
(It does not mean the actual capacity of RAM but the
space of hard disk.)
Delete unnecessary files to secure enough space of the
hard disk and try printing again.

Name of Printer Port :
To reinstall the printer driver, do after removing the current driver.
• While installing the driver, Set and PC should be connected.
(The printer setup may be wrong if they are not connected during installing.)
• The SCX-1100 Model supports all the USB/Parallel Print, select the USB Port when using
the USB, while select the LPT Port when using the Parallel.

Samsung Electronics

4-17

Troubleshooting

4-3-25 Spool Error and Release of Spool Error
• Description

pool (Simultaneous Peripheral Operations Online) refers to process the document to be read and
stored in the hard disk or the mass storage media, and then to be printed at more convenient time.
While the printer is outputting other file, the file requested to output is undergone to be spooled in the
hard disk, the spool error may occur if a problem occurs in this process.
First, delete the Spool Data if the Spool Error occurs.
Check and Cause

Solution

I. Insufficient space of the hard disk set as the default
spool directory.

1. Delete unnecessary files to provide more hard disk
space and try printing job.

2. If the previous printing out error is not solved.

2. Since there may be some journal files with the extension ***.jnl, delete them and reboot the WINDOWS to
restart printing job.

3. In case a collision with other program is expected.

3. Exit all other programs except the program currently
using, if possible, and print again.

4. When an application program or the printer driver file
is damaged.

4. Delete the printer driver completely and reinstall it.

5. If some of OS related files are damaged or malfunctioning due to virus infections.

5. After rebooting the computer, check viruses, restore the
damaged files and reinstall the program, then try print
ing again.

6. The memory is less than that recommended by the
OS.

6. Add memory to the PC.

How to delete the data in the spool manager :
In the spool manager, the installed drivers and the list of all the documents waiting to be
printed are shown. Select the data of the document to be deleted and select Document menu
--> Delete.
If you intend to delete the current document being printed, the data being transferred to the
printer will be printed out and then the document will be removed. Before choosing the document data, the document menu is still inactive.
Or Hold the document in the waiting list and repeat the routine as the above or exit the Spool
manager

4-18

Samsung Electronics

5. Exploded View and Parts List
5-1
5-2
5-3
5-4
5-5
5-6
5-7
5-8

Main Assembly Exploded view ..........................................................
Main Cover Assembly Exploded view...............................................
Scanner Assembly Exploded view ...................................................
OPE Unit Exploded view......................................................................
Engine Ass’y Exploded view...............................................................
ASF Unit Exploded view .....................................................................
Screw .....................................................................................................
SMPS Parts Lists ................................................................................

page(5-2)
page(5-4)
page(5-6)
page(5-8)
page(5-10)
page(5-12)
page(5-14)
page(5-14)

• Deal drawings and service parts are declared for the items with higher rate
of inferiority and replaceable in the level of service description only.
• If inferiority occurs, you can replace the parts by the unit declared in deal
drawings and service items.
Way to observe Part Code & Description
Part code and Description is quoted and controlled by determined standard. Refer to this determined
standard, it will help with ordering Part.

• There are two kinds of Part code inscription type.
ex ) 2007-007961

R-CHIP

ex ) JB96-01268A

ELA UNIT-COVER TOP

Type 1 : Controlled by Company : It can be commonly used for all kinds of product SEC produce.
Mostly, electronics Parts.
Type 2 : Controlled by Division : It is used or one produce. Mostly, Mostly, mechanical Parts.

• A/S privately used part : It is only used for A/S .
• Ass’y part : Assembled by more than 2 Parts. If necessary part is not A/S Part, Ass’y part including
necessary par can be used. It is shown in the diagram and drawing of SVC manual.
• Ass’y part and A/S privately used Part is distinguished by part Code and Description.
The are inscription type 2. It is recognized by Part character and front side of description.

Samsung Electronics

DIVISION
A/S Private

PART CODE
**81-******
(JB81-00039A)

DESCRIPTION
AS-*****
(AS-USE)

ASS’Y Part

**75-******
(JB75-00068A)

MEC-*****
(MEC-CHUTE)

ASS’Y Part

**92-******
(JB92-01131A)

PBA ******
(PBA MAIN-CONTROLLER)

ASS’Y Part

**97-******
(JB97-01089A)

MEA ******
(MEA UNIT-PULLEY IDLE)

5-1

Exploded View and Parts List

5-1 Main Assembly Exploded view

1-2

1-1
0
3

1

S7

4

S7

7-2
5
8
S6
S6

12
13
S6

11

S3

9
6
S6

7-1
10

S6

5-2

7

Samsung Electronics

Exploded View and Parts List

< Main Assembly Parts List >
SA. : Service Available

NO

DESCRIPTION

SEC CODE

Q’TY

SA

REMARK

0

SCX-1100

X

1

ELA-UNIT-OPE/SCANNER ASS’Y

Refer to table below

1

O

1-1

ELA UNIT-OPE ASS’Y(1100)

Refer to table below

1

O

1-2

ELA-UNIT-UNIT SCANNER(1100)

*

1

X

3

MEA UNIT-FEEDER

JB97-01535A

1

O

4

PBA MAIN-MAIN

JB92-01201A

1

O

5

ELA UNIT-ENGINE ASS’Y

JB96-01330A

1

O

6

MEA-COVER MAIN

JB97-01539A

1

O

7

MEA-COVER REAR

*

1

X

7-1

PMO-COVER REAR

*

1

X

7-2

PMO-DOOR SIDE

*

1

X

8

PMO-GUIDE EXTENSION

JB72-01140A

1

O

9

SMPS-MAGIC

JB44-00017A

1

O

10

LABEL SHEET-SMPS

*

1

X

11
12
13
S3

PMO-COVER SMPS
CBF HARNESS-POWER GND
CBF HARNESS-MAIN POWER
SCREW-TAPPING

JB72-01146A
*
JB39-00129A
*

1
1
1
2

O
X
O
X

M 3 X 8 mm

S6

SCREW-TAPTITE

*

9

X

M 3 X 10 mm

S7

SCREW-TAPTITE

*

5

X

M 3 X 6 mm

110/220 VAC

O: Service available X: Service not available

MODEL

ELA-UNIT-OPE/SCANNER ASS’Y

ELA UNIT-OPE ASS’Y

SCX-1100/XEF

JB96-01343D

JB96-01342D

SCX-1100/XEP

JB96-01343E

JB96-01342E

SCX-1100/XEU

JB96-01343A

JB96-01342A

SCX-1100/XFA

JB96-01343F

JB96-01342A

SCX-1100/XIL

JB96-01343B

JB96-01342B

SCX-1100/XIP

JB96-01343F

JB96-01342F

SCX-1100/XSH

JB96-01343F

JB96-01342F

SCX-1100/XSS

JB96-01343F

JB96-01342F

SCX-1100D/XSH

JB96-01343F

JB96-01342F

Samsung Electronics

5-3

Exploded View and Parts List

5-2 Main Cover Assembly Exploded view

0

S8

5

7

6

1
2

3-2

3-3

4

3

3-1

5-4

Samsung Electronics

Exploded View and Parts List

< Main Cover Assembly Parts List >
SA. : Service Available

NO

DESCRIPTION

SEC CODE

Q’TY

SA

0

MEA-COVER MAIN

JB97-01539A

1

O

1

PMO-DOOR FRONT

JB72-01144A

1

O

2

PM-COVER MAIN

*

1

X

3

MEA-STACKER

*

1

X

3-1

PMO-BASE STACKER

JB72-01143A

1

O

3-2

PMO-EXIT TRAY MIDDLE

JB72-00978C

1

O

3-3

PMO-EXIT TRAY EXTENSION

JB72-00982C

1

O

4

FOOT-RUBBER

JB61-40901A

2

O

5

MPR-FELT UPPER

JB74-00014A

1

O

6

MPR-FELT LOWER

JB74-00015A

1

O

7

CBF HARNESS-MAIN_COVER OPEN

JB39-00116A

1

O

S8

SCREW-SPECIAL

*

1

X

REMARK

M3 X 8 mm

O: Service available X: Service not available

Samsung Electronics

5-5

Exploded View and Parts List

5-3 Scanner Assembly Exploded view

1-3

1
1-3
1-2

0

1-1
2-4-3

2-5
2-4-2
2-4-1

2

S6

2-4

3

3-10
2-2

3-12
3-11

3-8-1
3-8-7

2-1
S3

3-3

3-8-3

3-8-5

S6

3-8-4
S7
S6

2-1
S3
3-15

3-8-6

3-13

3-2

3-14

3-5
3-1
3-4
3-7

3-8-2

2-3

3-8

3-6
3-9

5-6

Samsung Electronics

Exploded View and Parts List

< Scanner Assembly Parts List >
SA. : Service Available

NO
0
1
1-1
1-2
1-3
2
2-1
2-2
2-3
2-4
2-4-1
2-4-2
2-4-3
2-5
3
3-1
3-2
3-3
3-4
3-5
3-6
3-7
3-8
3-8-1
3-8-2
3-8-3
3-8-4
3-8-5
3-8-6
3-8-7
3-9
3-10
3-11
3-12
3-13
3-14
3-15
S3
S6
S7

DESCRIPTION

SEC CODE

Q’TY

SA

ELA UNIT-SCANNER
MEA-COVER PLATEN
MPR-WHITE SPONGE SHEET
PMO-COVER PLATEN(1100)
PMO-HINGE (3 IN 1)
MEA-SCAN UPPER
IPR-HOLDER GLASS
PMO-SCAN UPPER
MCT-SCAN GLASS
MEA-DUMMY (3 IN 1)
TAPE-DOUBLE FACE
LABEL(P)-SHADING
PMO-SCAN DUMMY(3IN1)
LABEL(P)-ACTUATOR (3 IN 1)
MEA-SCAN LOWER
BELT-TIMING GEAR
SPRING-BELT
ICT-SHAFT CCD
PMO-PULLEY
PMO-HOLDER BELT
PMO-SCAN LOWER
PMO-HOLDER BELT
ELA ETC-BRKT SCAN MOTOR
RING-E
MOTOR-SCAN
GEAR-TIMING
GEAR-IDLE
GEAR-REDUCTION
IPR-BRKT SCAN MOTOR
PMO-HOLDER BELT
CABLE-TIE
ELA MODULE-SCANNER(MUAX)
CBF-FLAT CBL-CCD
CORE-FERRITE
CBF-HARNESS-MAIN OPE
CUSHION PAD-DAMPER
CBF-HARNESS-SCAN MOTOR
SCREW-TAPPING
SCREW-TAPTITE
SCREW-TAPTITE

*
JB97-01560A
*
*
*
*
*
*
*
*
*
*
*
*
*
6602-001067
*
*
*
*
*
*
JB96-01344A
*
JB31-00011A
*
*
*
*
*
*
JB96-01317A
JB39-00132A
*
JB39-00148A
JB69-00186A
JB39-00147A
*
*
*

1
1
1
1
2
1
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
1
1
1
1
1
1
1
1
1
1
1
1
1
2
4
2

X
O
X
X
X
X
X
X
X
X
X
X
X
X
X
O
X
X
X
X
X
X
O
X
O
X
X
X
X
X
X
O
O
X
O
X
O
X
X
X

REMARK

M3 X 8 mm
M3 X 10 mm
M3 X 6 mm

O: Service available X: Service not available

Samsung Electronics

5-7

Exploded View and Parts List

5-4 OPE Unit Exploded view

3

S6

19

1

0
S6

6

7

8
9

10

16
17

11
13

12

14

15

18
5

4

S3

S5

2

5-8

Samsung Electronics

Exploded View and Parts List

< OPE Unit Parts List >
SA. : Service Available

NO

DESCRIPTION

SEC CODE

Q’TY

SA

Refer to table below

1

O

REMARK

0

ELA UNIT-OPE ASS’Y(1100)

1

PMO-OPE UPPER

*

1

X

2

PMO-OPE LOWER

*

1

X

3

PMO-OPE PANEL(1100)

Refer to table below

1

O

4

PBA-MAIN-OPE

JB92-01202A

1

O

5

CBF HARNESS-MAN OPE

*

1

X

6

PMO-KEY ANSWER

*

1

X

7

PMO-KEY SAVE(1100)

*

1

X

8

PMO-KEY SCROLL

*

1

X

9

PMO-KEY ENTER(1100)

*

1

X

10

PMO-KEY ZOOM

*

1

X

11

PMO-KEY BLACK

*

1

X

12

PMO-KEY COLOR

*

1

X

13

PMO-KEY SPECIAL(1100)

*

1

X

14

PMO-KEY SCAN

*

1

X

15

PMO-KEY POWER(1100)

*

1

X

16

RMO-RUBBER SAVE(1100)

*

1

X

17

RMO-RUBBER SETUP(1100)

*

1

X

18

RMO-RUBBER COPY(1100)

*

1

X

19

SHEET-LCD

*

1

X

S3

SCREW-TAPPING

*

8

X

M 3 X 8 mm

S5

SCREW-TAPPING

*

2

X

M 2.5 X 5 mm

S6

SCREW-TAPTITE

*

6

X

M 3 X 10 mm

O: Service available X: Service not available

MODEL

ELA-UNIT-OPE ASS’Y

PMO-OPE APANEL

SCX-1100/XEF

JB96-01342A

JB72-01196A

SCX-1100/XEP

JB96-01342B

JB72-01196B

SCX-1100/XEU

JB96-01342D

JB72-01196D

SCX-1100/XFA

JB96-01342E

JB72-01196E

SCX-1100/XIL

JB96-01342A

JB72-01196A

SCX-1100/XIP

JB96-01342F

JB72-01196F

SCX-1100/XSH

JB96-01342F

JB72-01196F

SCX-1100/XSS

JB96-01342F

JB72-01196F

SCX-1100D/XSH

JB96-01342F

JB72-01196F

Samsung Electronics

5-9

Exploded View and Parts List

5-5 Engine Ass’y Exploded view

S7

S7

3-4
3-5

11-1
11-2

15
S7

5-10

Samsung Electronics

Exploded View and Parts List

< Engine Ass’y Parts List >
SA. : Service Available

NO
0
1
1-1
1-2
1-3
1-4
1-4-1
1-4-2
1-4-3
1-4-4
2
2-1
3
3-1
3-2
3-3
3-4
3-5
4
5
6
7
8
9
10
10-1
10-2
10-3
10-3-1
10-3-2
10-3-3
10-4
11
11-1
11-2
12
13
14
15
S1
S2
S6
S7

DESCRIPTION
ELA UNIT-ENGINE ASSY
MEC-HOLDER ROLLER
SPRING-ES ACTUATOR
PMO-ACTUATOR FEED
PMO-HOLDER ROLLER SUB
MEC-FRIC ROLLER
SPRING-ES FRICTION
IPR-DEFLECTOR
ICT-FRICTION ROLLER
PMO-HOLDER F/R
MEA UNIT-BRKT LF
MOTOR-STEP LF(V)
MEC-PULLEY IDLE
SPRING-CS PULLEY
ICT-SHAFT PULLEY IDLE
PMO-PULLEY IDLER
PMO-HOLDER PULLEY
PMO-STOPPER PULLEY
ICT-SHAFT CR
SPRING-SHAFT CR
MEA UNIT-C/R/SEC
BEARING-FEED R
MEC-ROLLER FEED
PRP-ENCODER STRIP(V)
MEC-FRAME BASE
BELT-EXIT
MEC-EXIT ROLLER
MEC-HOLDER EXIT
IPR-SPRING WHEEL
PMO-HOLDER WHEEL
MEA UNIT-WHEEL STAR
MEC-SUB FRAME BASE
ELA UNIT-C/R MOTOR
MOTOR-DC CARRIAGE
CBF-HARNESS-DC MOTOR
SPRING-PS ENCODER
MEC-FRAME MAIN
MEC-FRAME HOME
MPR-SHEET ENCODER
SCREW-MACHINE
SCREW-TAPPING
SCREW-TAPTITE
SCREW-TAPTITE

SEC CODE

Q’TY

SA

JB96-01330A
JB75-11111A
JB61-70919A
JB72-40993A
*
*
*
*
*
*
JB97-01536A
JB31-00007A
JB75-11110A
*
*
*
*
JB72-41212A
JB70-40906A
JB61-70913A
JB96-01303A
JB66-10002A
JB75-11112A
JB72-00662A
JB75-00170A
JB75-00171A
JB75-10917A
*
*
*
*
JB75-11126A
JB96-01312A
JB31-00005A
JB39-00094A
JB61-70917A
JB75-00349A
JB75-00174A
JB74-00024A
*
*
*
*

1
1
1
1
1
4
1
1
1
1
1
1
1
1
1
1
1
1
1
2
1
1
1
1
1
1
1
1
1
1
6
1
1
1
1
1
1
1
1
1
3
1
2

O
O
O
O
X
X
X
X
X
X
O
O
O
X
X
X
X
O
O
O
O
O
O
O
O
O
O
X
X
X
X
O
O
O
O
O
O
O
O
X
X
X
X

REMARK

M3 X 10 mm
M3 X 10 mm
M3 X 6 mm

O: Service available X: Service not available

Samsung Electronics

5-11

Exploded View and Parts List

5-6 Feeder Unit Exploded view

0

1-9

1-13

1-3

1-4

1-5

1-1
1-14

1-10

1-7
1-16
1-8
1-15

1-11
1-12
1-2
2-2
S4

2

1

2-5
2-1
2-3
2-6

5-12

2-4

Samsung Electronics

Exploded View and Parts List

< Feeder Unit Parts List >
SA. : Service Available

NO

DESCRIPTION

SEC CODE

Q’TY

SA

JB97-01535A

1

O

0

MEA UNIT-FEEDER

1

MEA UNIT-ASF W/O PICKUP

*

1

X

1-1

RING-E

*

2

X

1-2

SPRING-TORSION AC

*

1

X

1-3

GEAR-IDLER ASF

*

3

X

1-4

GEAR-DRIVER ASF

*

1

X

1-5

ICT-PIN ASF BOSS

*

1

X

1-6

PMO-COVER PCB

*

1

X

1-7

PMO-HOUSING BUCKLER

*

1

X

1-8

PMO-BUCKLER JAG

*

1

X

1-9

PMO-COVER ASF

*

1

X

1-10

PMO-ASF FRAME

*

1

X

1-11

PMO-PAPER GUIDE

*

1

X

1-12

PMO-PAPER CAPACITY

*

1

X

1-13

PMO-SHAFT PICKUP

*

2

X

1-14

PMO-ROLLER IDLER

*

1

X

1-15

RMO-BUCKLER FRICTION

JB73-00019A

1

O

1-16

MPR-PAD FRICTION

*

1

X

2

MEA UNIT-PICKUP ROLL

JB97-00965A

1

O

2-1

GEAR-PICKUP IDLER

*

2

X

2-2

GEAR-DRIVE PICKUP

*

1

X

2-3

PMO-HOUSING R

*

1

X

2-4

PMO-PICKUP ROLL

*

1

X

2-5

PMO-HOUSING L

*

1

X

2-6

RMO-PICKUP RUBBER

*

1

X

S4

SCREW-TAPPING

*

1

X

REMARK

M2.6 X 6 mm

O: Service available X: Service not available

Samsung Electronics

5-13

Exploded View and Parts List

5-7 Screw
NO

DESCRIPTION

SEC CODE

SPEC

S1

6001-000485

SCREW-MACHINE

PH,+,M2.6,L4,ZPC(YEL),SM20

S2

6002-000101

SCREW-TAPPING

BH,+,2,M3,L10,ZPC(BLK),SM2

S3

6002-000175

SCREW-TAPPING

PWH,+,2,M3,L8,ZPC(YEL),SM2

S4

6002-000308

SCREW-TAPPING

PH,+,2,M2.6,L6,ZPC(YEL),SM

S5

6002-001065

SCREW-TAPPING

PWH,+,2,M2.5,L5,ZPC(YEL),SM2

S6

6003-000196

SCREW-TAPTITE

PWH,+,B,M3,L10,NI PLT,SWRC

S7

6003-000269

SCREW-TAPTITE

BH,+,S,M3,L6,ZPC(YEL),SWRC

S8

6009-001251

SCREW-SPECIAL

SM20C,P12,+,M3,L8,ZPC(YEL),MACHIN

5-8 SMPS Parts Lists
DESCRIPTION
TR-SMALL SIGNAL
AS-FET
AS-DIODE_SCHOTTKY
AS-DIODE_FR
AS-DIODE_ZENER
AS-DIODE_ZENER
AS-DIODE_BRIDGE
AS-TRANSFORMER
AS-FUSE
AS-FET CHIP SILICON
REACTOR-INR 10D-561K
AS-R WIRE WOUND
AS-Q1

5-14

SEC. CODE
0501-000010
JB81-00229A
JB81-00231A
JB81-00232A
JB81-00233A
JB81-00234A
JB81-00235A
JB81-00237A
JB81-00239A
JC81-00020A
JC81-00407A
JC81-11404A
JF81-10908A

Q'TY
2
1
1
1
1
1
1
1
1
1
1
2
1

SPECIFICATION
"KSC1008,NPN,800mW,TO-92,TP,120-240"
"SCX-1100,FQU2N60,600V, 2A ,-,-,-,-,-"
"SCX-1100,SR204,40V, 2A,-,-,-,-,-"
"SCX-1100,ER502,200V, 5A,-,-,-,-,-"
"SCX-1100,MTZ9.1B,500MW (8.57V~9.01V),-,-,-,-,-"
"SCX-1100,1N4753A,1W 36V,-,-,-,-,-"
"SCX-1100,2KBP06M,600V, 2A,-,-,-,-,-"
"SCX-1100,MAGIC-V3,EE2525W ; MAGIC-V3,-,-,-,-,-"
"SCX-1100,50T,250V 2.0A,-,-,-,-,-"
"ML-7000,IRF9540(N),TO-220,-100V,-17A,0.2OHM,-,-"
"SF-5100,INR 10D-561K,VARISTOR,-,-,-,-,-"
"SF6000,RWN1W 0.42J,-,-,-,-,-"
"ALPS-V2,SSP5N80A,800V,5A,-,-,-"

LOCATION NO.
"Q3,Q4"
Q2
D4
D5
ZD1
ZD4
BD1
T1
F1
FOR_Q1
TNR1
"R17,R4"
Q1

Samsung Electronics

Samsung Electronics

(110~240V)

AC

(30V, 3.3V)

SMPS

POWER

LINE FEED
MOTOR

CARRIER
MOTOR

ENCODER

ENCORDER
SENSOR

PRINT HEAD(2PEN)
60DPI DOUBLE HEIGHT

MONO
CARTRIDGE

COLOR
CARTRIDGE

PC

(U1)
HEAD
Driver
IC

+3.3V

+30V

(U4)
Motor
Driver
& Regul at or

PAPER EXIT
SENSOR

(U5)

1284 CONN

USB CONN

(4M 16bit)

SDRAM

(U27)

+5V
+12V

48MHz

(U21)
Image
Processor
OA-980

/REQ

DM 2

USEB

INT. CNTR

I/O PORT

TIMERS

IEEE 1284

UART 3

DERASTERIZER

SCAN CNTR

Head Control I/F

MEM CNTR

ARM7TDM

(15)
Main
Controller

/ACK

( U 10 ,U 1 4 )

SCAN STEPPER
MOTOR DRIVER

ADC
16bit

(U16)

(U9)

1M* 16bit

SDRAM

(U7)
FLASH ROM

RESET
CONTROLLER

(U13)

Main Clock
10MHz

( AU1)
BUZZER

MAIN

( Bi-POLAR STEP )

SCAN MOTOR

CCD Module

( COLOR 600DPI )

SCANNER

KEY PANNEL

Mcro Controller (U1)

LCD

OPE

6. Block Diagram

6-1

7. Connection Diagram

11.75V

5V

3.3V

30V

R8
5.1K
CN1-26
CN1-25
CN1-24
CN1-23
CN1-22
CN1-21
CN1-20
CN1-19
CN1-18
CN1-17
CN1-16
CN1-15
CN1-14
CN1-13
CN1-12
CN1-11
CN1-10
CN1-9
CN1-8
CN1-7
CN1-6
CN1-5
CN1-4
CN1-3
CN1-2
CN1-1

30V

CHY
CHX

5V
C67
100uF
16V

C66
100nF

CN11-1
CN11-2
CN11-3
CN11-4

PDATA3
PDATA2
PDATA1
PDATA0
PLOAD
PENABLE
PH_ID1
PH_ID2
OK2PRT
C1
220pF

PULLUP
C205
100nF

3.3V

_SF_POR
ACLK
AGATE
LDCS
LATCHCTL
PCLK

L11

C49
100nF

R43
10K

R155
1.5K

5VA

C50
330uF
50V

BD6

0,5%
C119
100nF

BD7

DGND

R154
10K

C118
100uF
16V

0
0,5%

C204
22pF

L5

C7
220pF

L6

0

L12

0

DGND

R153

10K

USB20-4W2100
BD13
BD11
BD12
BD10

R144
R152

CN8-1
CN8-2
CN8-3
CN8-4

C209
100nF

C203
22pF

L9

GND30
AGND

DGND

L10
0

FGND

5V

_STB
CD(0:7)

CN14-1
CN14-2
CN14-3
CN14-4
CN14-5
CN14-6
CN14-7
CN14-8
CN14-9
CN14-10
CN14-11
CN14-12
CN14-13
CN14-14
CN14-15
CN14-16
CN14-17
CN14-18
CN14-19
CN14-20
CN14-21
CN14-22
CN14-23
CN14-24
CN14-25
CN14-26
CN14-27
CN14-28
CN14-29
CN14-30
CN14-31
CN14-32
CN14-33
CN14-34
CN14-35
CN14-36

KEYTONE

1.5K
DIN15

180K

R380

OPE_TXDD
_OPE_RES
OPE_RXD

CN16-1
CN16-2
CN16-3
CN16-4
CN16-5
CN16-6
CN16-7
CN16-8
CN16-9
CN16-10
CN16-11
CN16-12
CN16-13
CN16-14
CN16-15

Q10
2SC2812L6-TA

R383
68K

OPE_MAGIC
C81
100pF

C80
100pF

C97
100nF

C82
100pF
DGND

DGND

DGND

(UNUSED)

_ACK
BUSY
PE
SLCT
_AUTOFD

R209
0

DGND

DGND

5V

L7

0

L8

0

11.75VA

DGND

R136 47K

R138 47K

5V

C208
100nF

_INIT

_SLCTIN
C338
100pF

C337
100pF

MODEM_RX
MODEM_TX1
MODEM_TX2

R137

1K

R135
DP

1K

_HOOK_OFF
_RING_DET

CN12-1
CN12-2
CN12-3

R145

SPK_OUT-

100

C182
100nF

C181
100pF

Q5 3
2SC2812L6-TA

DGND

AGND DGND

CR_NA
CR_A

R125
3K

1TP230

_CML_ON

C
B

E

DGND

R126
2K

AGND
AGND

5V

Q4 3
2SC2812L6-TA

11.75V

LF_B
LF_NA
LF_A
LF_NB

3.3V

R124
3K

1 TP77

E_DP

2

C3
100uF
25V

R123
2K

R24
100
1/8W

R44
22

_P_PICKUP
AGND
100nF
C33

5V

5V

DGND

R25
10K

5V

R28
10K

U5
RPI-441C1

R33
10K

R378
0

DGND

5V

5V

CN4-4
CN4-3
CN4-2
CN4-1
5045-04A
3711-000225

R23
47K

5V

HOME

C58
220pF

CN3-1
CN3-2
CN3-3
5045-03A
3711-000198|scon_pin3_2.5mm

2

C194
100pF
(UNUSED)

R45
22K

CN13-1
CN13-2

COVER_OPEN

C197
100nF

RECALL

LIU

DGND

SPK_OUT+

R146
4.7K

REMOTE

DGND
DGND

3.3V

1
2
3
4
5
6
7
8
9
10
11
12
13
14

_ERROR

DGND

GND30

CN9-1
3711-002815
DGND

CN5-24
CN5-23
CN5-22
CN5-21
CN5-20
CN5-19
CN5-18
CN5-17
CN5-16
CN5-15
CN5-14
CN5-13
CN5-12
CN5-11
CN5-10
CN5-9
CN5-8
CN5-7
CN5-6
CN5-5
CN5-4
CN5-3
CN5-2
CN5-1

ADF_PHA
ADF_IA0
ADF_IA1
ADF_PHB
ADF_IB0
ADF_IB1
_ADF_DET
_D_DET
_D_SCAN
REG1_SEN

DGNDFGND

C336
100pF

INV_POWER

5V

R207 10K

1
2
3
4
5

5V

R148 10K

R384

CN7-1
5V

30V
Q9
KSA1182-Y

R147 10K

5V

R149 10K

(UNUSED)

GND12 GND30 DGND

CN6-5
CN6-4
CN6-3
CN6-2
CN6-1

11.75V
Q7
KSA1203_YTF

U6

R38
10K

SCAN_A
SCAN_NA
SCAN_B
SCAN_NB

INV_POWER

DGND

TP365

CCD_TG
CCD_CLK1
C95

10nF

C98

10nF

C96

10nF

VOUT_G

CCD_CLK2

VOUT_R

CCD_RS

R37

0

100

R36

OPE_TXD

R35

0

100

R34

_OPE_RST

C333
100nF

C334
100nF

TP364

R377
10K

VOUT_B

R375
680

DGND

R27

C38

C39

C32

C35

FPC_24

47pF

R29

100

47pF

100

0

47pF

0

R26

47pF

R30

TP363

OPE_TXDD

_OPE_RES
LAMP_ON

TP78

D8
RB420D T147
TP367
R373
4.7K

R366
TP366
1K

1

3

Q1
2SC2812L6-TA

2

CD74HCT244M

CCD

DGND
AGND

GND12

DGND
DGND
DGND
DGND

DGND
DGND

Samsung Electronics

DGND

7-1

Repair Manual
INKJET RINTER(MFP)

SCX-1100
CONTENTS
1. Block Diagram
2. Connection Diagram
3. Circuit Description
4. Schematic Diagrams

Samsung Electronics

- This Document can not be used without Samsung's authorization -

(110~240V)

AC

(30V, 3.3V)

SMPS

POWER

LINE FEED
MOTOR

CARRIER
MOTOR

ENCODER

ENCORDER
SENSOR

PRINT HEAD(2PEN)
60DPI DOUBLE HEIGHT

MONO
CARTRIDGE

COLOR
CARTRIDGE

PC

(U1)
HEAD
Driver
IC

+3.3V

+30V

(U4)
Motor
Driver
& Regul at or

PAPER EXIT
SENSOR

(U5)

1284 CONN

USB CONN

(4M 16bit)

SDRAM

(U27)

+5V
+12V

48MHz

(U21)
Image
Processor
OA-980

/REQ

DM 2

USEB

INT. CNTR

I/O PORT

TIMERS

IEEE 1284

UART 3

DERASTERIZER

SCAN CNTR

Head Control I/F

MEM CNTR

ARM7TDM

(15)
Main
Controller

/ACK

(U 10,U 14)

SCAN STEPPER
MOTOR DRIVER

ADC
16bit

(U16)

(U9)

1M* 16bit

SDRAM

(U7)
FLASH ROM

RESET
CONTROLLER

(U13)

Main Clock
10MHz

( AU1)
BUZZER

MAIN

( Bi-POLAR STEP )

SCAN MOTOR

CCD Module

( COLOR 600DPI )

SCANNER

KEY PANNEL

Mcro Controller (U1)

LCD

OPE

1
BLOCK DIAGRAM

1. Block Diagram

Repair Manual

1-1

2

CONNECTION DIAGRAM

2. Connection Diagram

• Reffer to the Schematic diagram(see page 4-2)

Repair Manual
Samsung Electronics
- This Document can not be used without Samsung's authorization -

2-1

3

CIRCUIT DESCRIPTION

3. Circuit Description
◊ MAIN PBA

3-1. GENERAL DESCRIPTION
Main circuit consists of mainly consists of CPU and the controller part with various types of built-in I/O device driver(built-in
RISC Processor Core: ARM7TDMI), system memory part, OA980 controlling input of image received from media and conversion, CF(COMPACT storage card) interface part. The following nomenclatures by section is the same as those listed in
the circuit diagram.

3-2. MEMORY MAP
The entire Addressing area provided by MAIN CONTROLLER(S3C46MOX(Jupiter3)) is 256MBytes from 0x00000000 to
0x10000000, and the Max. Address Range for each External Chip Select is 32M Byte or Half word from 0x000000 to
0x01FFFFFF and embodied with Big-Endian Bus interface. MEMORY area is divided into EXTERNAL ROM and RAM
areas(See (Figure 1)), and the areas actually used are 2M/8M BYTES SDRAM and 1M BYTES ROM(FLASH MEMORY).
In case of SDRAM, it uses 0xC200000h ~ 0xC3FFFFFh(2MB), and ROM uses 0x0000000h ~ 0x0FFFFFh area.




Repair Manual
Samsung Electronics
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3-1

CIRCUIT DESCRIPTION

3-3.DETAILED DESCRIPTION
3-3-1 BLOCK DIAGRAM and MAIN CONTROLLER description
3-3-1-1 GENERAL DESCRIPTION
MAIN CONTROLLER(S3C46MOX(Jupiter3),U15) consists of this system consists of CPU(ARM7TDMI RISC PROCESSOR), 8K BYTES CACHE, DATA and ADDRESS BUS, PLL deriding input frequency and CLOCK CONTROL part,
SERIAL COMMUNICATION part supporting UART, PRINT HEAD control part, PARALLEL PORT INTERFACE part,
USB INTERFACE part, External DMA part for receiving data from external COLOR IMAGE PROCESSOR(OA980,U21), MEMORY and EXTERNAL BANK control part, SYNCHRONOUS SERIAL INTERFACE control part for interfacing Thunderbolt, and LF/CR Motor drive control and general purpose I/O control parts.(See Figure 2 )

3-3-2 S3C46MOX(Jupiter3) FUNCTION DESCRIPTION
3-3-2-1 SYSTEM CLOCK
There are two ways of Clock input method. One is the method to make Master Clock(MCLK) at the internal PLL by connecting X-tal and Capacitor to the outside, and another method is to use MCLK(When inputting 40MHz) directly, which
supplies maximum 40MHz Clock to the EXTCLK terminal(PIN65). The range of frequency being input in case of using
X-tal is limited to 4MHz~10MHz. This system uses SSCG(FS781) with a 10MHZ X-tal outside to make MCLK, and supplies Clock to the XIN terminal(PIN67) of ASIC by expanding Spectrum with bandwidth about 1.5% in comparison with
the basic frequency by using this IC. Inside the ASIC, the PLL makes 66MHz MCLK signal, which is the basic operation
frequency of the System. Also, this PLL makes 48MHz, the operation frequency of USB Controller.

3-3-2-2 DATA AND ADDRESS BUS CONTROL
1. /RD & /WR
/RD & /WR SIGNAL are synchronized with the inside MCLK(66MHZ) and becomes active to Low.
These signal are Strobe Signal used to Read or Write data when each Chip Select becomes active connected to
/RD,/WR PIN of RAM, ROM, OA-980.

2. CHIP SELECT (/ROMCS, /IP_CS,/MED_CS,/SCS0,/SCS1)
- /ROMCS : FLASH MEMORY(U7) CHIP SELECT (LOW ACTIVE)
- /IP_CS : OA-980(U21) CHIP SELECT
(LOW ACTIVE)
- /SCS1 : SDRAM(OPTION)(U12) CHIP SELECT (LOW ACTIVE)
In case each Chip Select is low, it may Read or Write data.

3. D0 ~ D15
- 16BIT DATA BUS

4. A0 ~ A24
- ADDRESS BUS (A23 ~ A24 RESERVED)

3-2

Repair Manual
Samsung Electronics
- This Document can not be used without Samsung's authorization -

Samsung Electronics

- This Document can not be used without Samsung's authorization -

(110~240V)

AC

(30V, 3.3V)

SMPS

POWER

LINE FEED
MOTOR

CARRIER
MOTOR

ENCODER

ENCORDER
SENSOR

PRINT HEAD(2PEN)
60DPI DOUBLE HEIGHT

MONO
CARTRIDGE

COLOR
CARTRIDGE

PC

(U1)
HEAD
Driver
IC

+3.3V

+30V

(U4)
Motor
Driver
& Regul at or

PAPER EXIT
SENSOR

(U5)

1284 CONN

USB CONN

(4M 16bit)

SDRAM

(U27)

+5V
+12V

48MHz

(U21)
Image
Processor
OA-980

/REQ

DM 2

USEB

INT. CNTR

I/O PORT

TIMERS

IEEE 1284

UART 3

DERASTERIZER

SCAN CNTR

Head Control I/F

MEM CNTR

ARM7TDM

(15)
Main
Controller

/ACK

( U 10,U 1 4 )

SCAN STEPPER
MOTOR DRIVER

ADC
16bit

(U16)

(U9)

1M* 16bit

SDRAM

(U7)
FLASH ROM

RESET
CONTROLLER

(U13)

Main Clock
10MHz

( AU1)
BUZZER

MAIN

( Bi-POLAR STEP )

SCAN MOTOR

CCD Module

( COLOR 600DPI )

SCANNER

KEY PANNEL

Mcro Controller (U1)

LCD

OPE

CIRCUIT DESCRIPTION




Repair Manual

3-3

CIRCUIT DESCRIPTION

EXTCLK
tRAD

tRAD

ADDR
tRCD

tRCD
nGCSx

Tacs
Tcah

tRWD

tRWD

nWE
Tocs

Tacc

Toch

nGCSx
’1’

nBEx

tRDD
DATA
tRDH




EXTCLK
tRAD

tRAD

ADDR
tRCD

tRCD
nGCSx

Tacs
Tcah

tRWD

tRWD

nWE
Tocs

Tacc

Toch

nGCSx
tRWBED
nBEx

tRWBED

Tcos
Toch
tRDD

tRDD
DATA




3-4

Repair Manual
Samsung Electronics
- This Document can not be used without Samsung's authorization -

CIRCUIT DESCRIPTION

SCLK
SCKE

’1’
tSAD

ADDR/BA
tSAD
AP/A10
tSCSD
nGCSx
tSRD
nSRAS
Trp

Trcd

tSCD

nSCAS
tSBED
nBEx
tSWD

Tcl

nWE
tSDS
DATA
tSDH




Repair Manual
Samsung Electronics
- This Document can not be used without Samsung's authorization -

3-5

CIRCUIT DESCRIPTION

SCLK
SCKE

’1’
tSAD

ADDR/BA
tSAD
AP/A10
tSCSD
nGCSx
tSRD
nSRAS
Trp

Trcd
tSCD

nSCAS

tSBED
nBEx
tSWD
nWE
tSDD
DATA
tSDD




3-6

Repair Manual
Samsung Electronics
- This Document can not be used without Samsung's authorization -

CIRCUIT DESCRIPTION

SCLK

SCKE

’1’
tSAD

tSAD

ADDR/BA
tSAD
AP/A10
tSCSD

tSCSD

tSRD

tSRD

nGCSx

nSRAS
Trp

Trc
tSCD

nSCAS

nBEx

’1’
tSWD

nWE

DATA

’HZ’




Repair Manual
Samsung Electronics
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3-7

CIRCUIT DESCRIPTION

SCLK

SCKE

’1’
tSAD

tSAD

ADDR/BA
tSAD
AP/A10
tSCSD

tSCSD

tSRD

tSRD

nGCSx

nSRAS
Trp

Trc
tSCD

nSCAS

nBEx

’1’
tSWD

nWE

DATA
’HZ’




3-8

Repair Manual
Samsung Electronics
- This Document can not be used without Samsung's authorization -

CIRCUIT DESCRIPTION

SCLK
tCKED

tCKED

SCKE
tSAD

tSAD

ADDR/BA
tSAD
AP/A10
tSCSD

tSCSD

nGCSx

’1’
tSRD

tSRD

nSRAS

’1’

’1’
Trc

Trp
tSCD
’1’

nSCAS

nBEx

’1’

’1’
tSWD

nWE

DATA

’1’

’HZ’

’HZ’




Repair Manual
Samsung Electronics
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3-9

CIRCUIT DESCRIPTION

Parameter

Symbol
tRAD

Min

Typ.

Max

Unit

-

12

-

ns

tRCD
tROD

-

11

-

ns

-

11

-

ns

-

1

-

ns

ROM/SRAM read Data Hold time

tRDS
tRDH

-

5

-

ns

ROM/SRAM Byte Enable Dalay

tRBED

-

13

-

ns

tRWBED
tRDD

-

14

-

ns

-

14

-

ns

ROM/SRAM Address Delay
ROM/SRAM Chip select Delay
ROM/SRAM Output enable Delay
ROM/SRAM read Data Setup time

ROM/SRAM Write Byte Enable Delay
ROM/SRAM output Data Delay
ROM/SRAM external Wait Setup time
ROM/SRAM external Wait Hold time

tWS
tWH

-

1

-

ns

-

5

-

ns

-

14

-

ns

DRAM Address Delay

tRWD
tDAD

-

12

-

ns

DRAM Row active Delay

tDRD

-

11

-

ns

tDRCD
tDOD

-

11

-

ns

-

12

-

ns

tDDS
tDDH

-

1

-

ns

-

5

-

ns

tDWCD
tDCCD

-

14

-

ns

-

12

-

ns

-

13

-

ns

DRAM output Data Delay

tDWD
tDDD

-

14

-

ns

SDRAM Address Delay

tSAD

-

4

-

ns

tSCSD
tSRD

-

4

-

ns

-

4

-

ns

SDRAM Column active Delay

tSCD

-

4

-

ns

SDRAM Byte Enable Delay

tSBED
tSWD

-

5

-

ns

-

5

-

ns

-

4

-

ns

SDRAM read Data Hold time

tSDS
tSDH

-

0

-

ns

SDRAM output Data Delay

tSDD

-

8

-

ns

SDRAM Clock Eable Delay

tCKED

-

5

-

ns

ROM/SRAM Write enable Delay

DRAM Read Column active Delay
DRAM Output enable Delay
DRAM read Data Setup time
DRAM read Data Hold time
DRAM Write Cas active Delay
DRAM Cbr Cas active Delay
DRAM Write enable Delay

SDRAM Chip Select Delay
SDRAM Row active Delay

SDRAM Write enable Delay
SDRAM read Data Setup time

< ROM/SRAM Bus Timing Constants >
(VDDP : 3.3V, VDDI : 2.5V, Ta =25˚C, PLCAP=70pf, Max/Min=typ. ±30%)

3-10

Repair Manual
Samsung Electronics
- This Document can not be used without Samsung's authorization -

CIRCUIT DESCRIPTION

3-3-2-3 EXTERNAL DMA part

3-3-2-6 PARALLEL PORT INTERFACE division

The function of this part is to bring data from external
DEVICE(OASIS:U21) by using GENERAL DMA. If DMA
REQUEST(/IP_REQ) is sent from external DEVICE to
S3C46MOX(JUPITER3:U15), DMA ACKNOWLEDGE
SIGNAL(/IP_ACK) is activated and the GENERAL DMA is
driven, so READ STROBE(/RD) in the external DEVICE to
bring data from the external DEVICE requiring CHANNEL.
To transfer this DATA to the DESTINATION MEMORY, the
ADDRESS of the DESTINATION MEMORY, CHIP
SELECT and WRITE STROBE(/WR) are generated to
store.

S3C46MOX(Jupiter3) has the Parallel Port Interface part
enabling Parallel Interface with PC.
This part is connected to PC through Centronics Connector
in this system, which consists of /ERROR, PE, BUSY,
/ACK, SLCT, /INIT, /SLCTIN, /AUTOFD, /STB and 245DIR
as the part generating the main control signal used to drive
PARALLEL COMMUNICATION. Data transmission
method between this part and PC supports the method
specified in P1284 Parallel Port Standard
(http://www.fapo.com/ieee1284.html) of IEEE.
That is, the Compatibility mode, the fundamental transmission method of print data, supports the Nibble Mode(4bits
data) supporting the Data Uploading to PC, Byte
Mode(8bits data), and ECP(Enhanced Capabilities Port : 8
bits data transmission & receiving) supporting two-way
high speed transmission to PC. The Compatibility mode
and ECP mode may be simply explained as follows.
The Compatibility mode is generally called Centronics
mode and is the protocol used for transmitting data by most
of PC. The ECP mode provides two-way high speed communication as the protocol suggested for improved communication with peripheral equipments such as printer and
scanner.
The ECP mode provides two types of cycles in two-way
transmission. They are data and command cycles.
Command cycle again has Run-length count and Channel
addressing types.
First, RLE (Run Length Encoding) type, having 64-fold
compressibility, is available for the real time data compression, and is used usefully for printer and scanner, which
have to transmit large capacity of raster image having a
series of same data. Next, Channel Addressing is proposed for addressing single structure of multi-device.
For example, although the printer channel is processing
the printer image when the fax/printer/scanner have one
structure like this system, they may use parallel port for
another use. This system does not apply to the parallel port
Interface.

That is, if the EXTERNAL DMA is required by the external
DEVICE, S3C46MOX(Jupiter3:U15) responds to drive the
inside DMA CONTROLLER and then allocate GENERAL
DMA to external CHANNEL so that the data may be transferred to MEMORY TO MEMORY or external DEVICE TO
MEMORY.
• For more details, see the circuit description, see the circuit
description part of IMAGE PROCESSOR (5.3).

3-3-2-4 DRAM control part
Since S3C46MOX(Jupiter3) has the DRAM CONTROLLER build-in, it may be used by connecting DRAM
with external memory.
The Control mode of DRAM CONTROLLER provided by
S3C46MOX(Jupiter3) is available for EARLY WRITE,
NORMAL READ, PAGE MODE, and BYTE/HALF WORD
ACCESS, and is supported even by EDO DRAM,and
SDRAM as well as, Fast page DRAM.
This system uses SDRAM, and the signal used for
READ/WRITE uses /RD,/WR signal used for SYSTEM
BUS CONTROL. It is supported with auto REFRESH and
also by the Self-refresh mode for DRAM BACK UP. It consists of 2 Banks connected to common /SCS[1:0], /SCAS,
/SRAS, /SCLK, /SCKE, /DQM[1:0], each of them may use
up to 2M ~ 32M HALF WORD.
In this system, 2 MB is applied as system memory. The
area of DRAM is specified in the DRAM MEMORY MAP of
Fig. 1, while the related TIMING DIAGRAM in Fig. 5, 6, 7,
8, 9.

3-3-2-5 RTC (REAL TIME CLOCK) part
The RTC related circuit part is not applied because the fax
function is not applied, in this system.

Repair Manual
Samsung Electronics
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3-11

CIRCUIT DESCRIPTION




1. Write the data to the data register.
2. Program reads the status register to check that the printer is not BUSY.
3. If not BUSY, then Write to the Control Register to assert the STROBE line.
4. Write to the Control register to de-assert the STROBE line.

BYTE 0

BYTE 1




1. The host places data on the data lines and indicates a data cycle by setting nAUTOFD.
2. Host asserts nSTROBE low to indicate valid data.
3. Peripheral acknowledges host by setting BUSY high.
4. Host sets nSTROBE high. This is the edge that should be used to clock the data into the Peripheral.
5. Peripheral sets BUSY low to indicate that it is ready for the next BYTES.
6. The cycle repeats, but this time it is a command cycle because nAUTOFD is low.

3-12

Repair Manual
Samsung Electronics
- This Document can not be used without Samsung's authorization -

CIRCUIT DESCRIPTION

BYTE 0

BYTE 1




1. The host request a reverse channel transfer by setting nINIT low.
2. The peripheral signals that it is OK to proceed by setting PE low.
3. The peripheral places data on the data lines and indicates a data cycle by setting BUSY high.
4. Peripheral asserts nACK low to indicate valid data.
5. Host acknowledges by setting nAUTOFD high.
6. Peipheral sets nACK high. This is the edge that should be used to clock the data into the host.
7. Host sets nAUTOFD low to indicate that it is ready for the next BYTES.
8. The cycle repeats, but this time it is a command cycle because BUSY is low.

Repair Manual
Samsung Electronics
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3-13

CIRCUIT DESCRIPTION

3-3-2-7 USB INTERFACE PART
1. USB function description

2. operation description

As the mode of implementing low cost express PC
Interface, USB was applied. At USB, PC plays the role of
route hub simultaneously by existing in the highest level as
the host. That is, the device supporting each USB is connected centering on PC.

This system, when Host and USB cables are connected,
and when +5V is detected in power detector inside chip
and Vbus(U15-98), 3.3V comes out through Pull-uP terminal. This is also connected to D+ in pattern of hardware and
supports Full-speed. Utilizing Configuration Endpoint,
EPO, in USB controller, Plug & Play function is operated.
Exchange of information between PCs is accomplished
through D+(U15-95) and D-(U15-96) terminals. This terminal decides transmission speed depending on connection
of regulator output in USB controller, and decides size of
signal following USB and SPFC. Signal of general D+ and
D- terminals are same as Figure 10-3.

The device is available for Interface for the maximum of
127. USB cable is composed of total of a set of twisted pair
and 2 power lines. Cables have two types.
One is used for express transmission of 12Mbps and may
be extended as long as 5m. The part for implementing USB
function is included in S3C46MOX(Jupiter3).
For Interface of USB, pull-up of 15KΩ is interfaced to the
data line of high level instruments, and, among data lines
of lower level instruments, pull-up resistance of 1.5KΩ is
interfaced to any one.
At this time, D+ line is pulled up for Full Speed device, and,
for Low Speed device, D-line is pulled up. For upper level
instruments(Host, HUB) speed of device is classified interfaced to low level by detecting any one among D+ and D-.
If both lines are in the level of GND at the same time, device
is judged that low device is not interfaced. In the transmission mode of USB, there are

D+

D< Figure 10-3. USB Signal Line DIAGRAM >

(1) Control transmission,
(2) Interrupt transmission,
(3) Bulk transmission, isochronous transmission.
Control transmission is for Host to find out configuration
information from USB device. This is conducted when
device is interfaced. Interrupt transmission is used when
small quantity of data is sent periodically. Interval value
may be known from device in the case of initial setting. Bulk
transmission is valid in case of trying to transmit data in
large quantities or in case of transmitting them accurately.
Isochronous transmission should be assured of bandwidth,
and is used when transmitting large quantities of information. Data in voice is used where delay is not allowed but
small error is allowed. At USB coding mode and bit stupping are being conducted. First, in case original data is 1,
bit shall not change, and only when original data is 001, it
shall be inverted. Only while data is 1, 1 and 0 shall be
repeated. Also, in case 1, original data, is continued in 6 bit,
0 shall be inserted, Also, in the 1st phase of packet, data in
the synchronized pattern shall be sent. About more
detailed information regarding USB, see http//:www.usb.org.

3-14

Repair Manual
Samsung Electronics
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CIRCUIT DESCRIPTION

3-3-2-8 HEAD control part

4. Control Signal

1. Entire description

• The signal loaded on PDATAO - PDATA2 at Rising edge
of LATCHCTL(Latch Control Nibble) is used as function
as follows in Spitfire.

As part to drive INKJET HEAD, it is composed of ACLK,
AGATE, LDCS, LATCHCTL, PCLK, PDATA[3:0], PLOAD,
PENABLE signals for controlling Spitfire of CR B’D generating signal, which is driving Nozzle of Head, and
PH_ID[1:0] and OK2Print signals receiving from Spitfire.
Here,HEAD being used here is DOUBLE HEIGHT PRINT
HEAD, and MONO is configured with 208 NOZZLE, and
COLOR is with 192 NOZZLE.

- PDATA0 == ADIR —> Low : ACLK is operated in Count
Down, High : ACLK is operated in Count
Up.
- PDATA1 == When Fault Test —> High, check whether
P-Line of Head became short with GND.
- PDATA2 == When Print Head ID Check —> high,
make sure that Check mode is set, and,
after that, by using the PDATA0~PDATA2
LIne, make A1-A3 signal for sending, and
Head ID shall come out with PH_IDn output. At this time ID could be displayed only
if each Substrate heater is turned on.

The Timing diagam below shows signal timin for the P-line block
ACLK
An
PCLK
PDATA

• The signal loaded into PDATAO-PDATA3 at Rising
edge of LDCS(LoadHtrcs) signal is used in the following functions in Spitfire.

PLOAD
PENABLE
Pn



2. A-LINE driving circuit
13 Address Lines are input into 13 Address Counters in
sequence at Rising edge of ACLK signal, which is input
serially into Spitfire. Output of this Counter was connected
to each A-line driver, and this driver output becomes A-line
signal. The sequence of signal input into Address Counter
is decided by ADIR, and if it is ADIR=0, it is input in
sequence of A13A1, and if it is ADIR=1, in sequence of A1
=> A13. AGATE signal is used to reset Address Counter. If
it becomes AGATE=1, A-Line output becomes Low state.
The cycle of ACLK is 1.5ß¡ in minimum, and Sink current of
each Driver is 60mA.

- PDATA0 == BLKHTR—> High : Turn on Substrate
Heater of Mono Head.
- PDATA1 == COLHTR—> High : Turn on Substrate
Heater of Color Head.
- PDATA2 == nHSM—> Low : Enable Select Signal of
Mono Head.
- PDATA3 == nHSC—> Low : Enable Select Signal of
Color Head.
When Substrate Heater is turned on, Over-current Check
circuit is operated, automatically, and,if the current is above
750mA, the printer stops operation after OK2PRT
becomes low.

3. P-LINE drive circuit
P-Line values are clocked to 4-bit Serial to Parallel Shift
Register Clock in Spitfire ASIC, and ASIC shall clock-in Pline NO. of fitting value at Rising Edge of PCLK. These values are latched to Holding register at Rising Edge of
PLOAD. PLOAD Pulse Duration is 50n, and P-line value of
Holding Register is done AND with PENABLE signal in
order to generate appropriate Fire Pulse. PLCK is available
for handling as much as 4MHz. Drive Current of P-line is
400mA. Data of P1°≠P4 is shifted to PDATAO, that of P5P8 shifted to PDATA1, that of P9-P12 shifted to PDATA2,
and that of P13-P16 shifted to PDATA3.

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3-15

CIRCUIT DESCRIPTION

3-3-2-9 SYNCHRONOUS SERIAL INTERFACE part

3-3-2-10 MOTOR control part
(DIR, PWM, LFPHA,LFPHB, LFIA[0:1],
LFIB[0:1])

As the part interfacing with THUNDERBOLT ASIC, it consists of /TBCS,TBCLK,TBDO. In sending SERIAL DATA
of 13 BIT to Thunderbolt ASIC, meaning of each bit is as
follows. BIT 1 is the bit to do On/Off VPH(+11.82V), BIT
[2:7] is the bit for driving MOTOR 1, BIT [8:13] is the bit to
drive MOTOR 2. MOTORs are available for being used as
STEPPER MOTOR and DC MOTOR respectively.

BIT 1
BIT 2
BIT 3
BIT 4
BIT 5
BIT 6
BIT 7
BIT 8
BIT 9
BIT 10
BIT 11
BIT 12
BIT 13

S3C46MOX(Jupiter3) is arranged to support one Step
motor and one DC motor. This system does not use the
Motor control part provided by S3C46MOX(Jupiter3).

STEPPER MOTOR
VPH_ENABLE
MOTOR1_CURR_I1_PHASEB
MOTOR1_CURR_I0_PHASEB
MOTOR1_DIR_PH_B
MOTOR1_CURR_I1_PHASEA
MOTOR1_CURR_I0_PHASEA
MOTOR1_DIR_PH_A
MOTOR2_CURR_I1_PHASEB
MOTOR2_CURR_I0_PHASEB
MOTOR2_DIR_PH_B
MOTOR2_CURR_I1_PHASEA
MOTOR2_CURR_I0_PHASEA
MOTOR2_DIR_PH_A

DC MOTOR
VPH_ENABLE
Not used in this mode.
Not used in this mode.
Not used in this mode.
Not used in this mode.
Not used in this mode.
MOTOR1_DIRECTION
Not used in this mode.
Not used in this mode.
Not used in this mode.
Not used in this mode.
Not used in this mode.
MOTOR2_DIRECTION

Tcs-sclk
Tcs-sclk

/ TBCS
Data Latcked on the rising edge of SCLK

TBCLK
Tdhd

Tdsu

TBDO

bit 1

bit 2

bit 3

bit 4

bit 5

bit 6

bit 7

bit 8

bit 9

bit 10 bit 11 bit 12 bit 13

LSB

SDI stays at
last value

MSB

time
< Figure 12 SYNCHRONOUS SERIAL INTERFACE TIMING DIAGRAM >

3-16

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CIRCUIT DESCRIPTION

3-3-2-11 GENERAL PURPOSE I/O PORT of S3C46MOX(Jupiter3)
1. J3 Assigned GCS Ports
PORT NAME
nGCS0
nGCS1/GOP16
nGCS2/GOP17
nGCS3/GOP18
nGCS4/GOP19
nGCS5/GOP15/PDE
nGCS6:nRAS0:nSCS0
/GOP13
nGCS7:nRAS1:nSCS1
/GOP14

PIN NO

I/O

SIGNAL NAME

136
137
138
139
141
142
34

O
O
O
O
O
O
O

nROM_CS
nIP_CS
reserved
reserved
reserved
245DIR
reserved

35

O

nSCS1

DESCRIPTION
H
FLASH MEMORY CHIP SELECT
OA-980 CHIP SELECT
P1284 DIRECTION CONTROL
-

L

SDRAM1(16Mb) CHIP SELECT

2. J3 Assigned GPI Ports

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CIRCUIT DESCRIPTION

3. J3 Assigned GPO

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CIRCUIT DESCRIPTION

3-3-3 RESET CIRCUIT
This system is configured with PRIMARY RESET(/POR) of
Power Reset, Reset by WATCH DOG TIMER, external
PRIMARY RESET, and SECOND RESET(/_F_POR)
which was done AND. PRIMARY RESET SYSTEM is used
for resetting MAIN CONTROLLER(U15) when System
Power is authorized, and SECOND RESET resets FLASH
MEMORY(U7). Figure 15 below is BLOCK DIAGRAM
related to the reset of entire system.
When +3.3V reaches 3.1V so that system may operate,
POWER MONITOR(U13) moves to High(+3.3V) after
maintaining low(OV) in the degree of 50mS-200mS output
while monitoring it. This Reset signal is input into MFP
CONTROLLER(S3C46MOX(Jupiter3 : U15) right away,
and MFP CONTROLLER becomes awake. And it releases
/F_POR after MCLK 1 clock.

3-3-3-1 POWER MONITOR ( U13 )
Since +3.3V power supplied to XC61FN3112MR is unstable, when it becomes 3.1V(3.038V~3.162V), it is checked
as the POWER FAILURE. And the output terminal of
XC61FN3112MRF becomes LOW(0V),it is applied to
S3C46MOX(Jupiter3)(U15), and RESET(LOW ACTIVE) is
operated When S3C46MOX(Jupiter3) Reset is cancelled,
FLASH
MEMORY
connected
to
/F_POR
of
S3C46MOX(Jupiter3) is Reset together. Output terminal of
XC61FN3112MRF is pulled up 100KΩ in the structure of
Open drain.

3-3-3-2 WATCH DOG OUTPUT (/F_POR)
Since WATCH DOG TIMER, which is Programmable
Counter in S3C46MOX(Jupiter3) is set as disable for INITIAL STATE, it shall be set as Disable so that it won’t operate, and after it is initialized for operation, it shall be reused
by setting it Enable. When Watch Dog Reset occurs, it is
about 10mS depending on the value set at the initial stage.
And Counter value of Watch Dog Timer is changed by the
program. Reset signal (/F_POR,UI5-106) shall be generated, and entire system shall be Reset and initialized.

< Figure 13. POWER RESET BLOCK DIAGRAM >

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CIRCUIT DESCRIPTION

3-4 MEMORY

3-5-1-2 Features & Functions

3-4-1 GENERAL DESCRIPTION

• 10bit scanning interface
: Supports CIS and CCD interface.
Needs external ADC(up to 16bit).

MEMORY applied in this system are FLASH MEMORY(U7)
of 1MB, SDRAM(U9) of 2MB.

3-4-2 MEMORY CONFIGURATION
By each CHIP SELECT (/ROM_CS, /SCS1, /SCS0,
/SD_RAS ,/SD_CAS ), FLASH MEMORY and SDRAM are
selected, and DATA is accessed by HALF WORD unit.

3-5 Image processing part (U21)
3-5-1 GENERAL DESCRIPTION
Image Processor OA-980(U21) is mainly configured with
On-chip µ Controller(8bit), Scanner Interface Section(PI),
Image Processing Section(IP), Memory Interface
Section(MI), JBIG Comp & Decomp Section, Rotate and
Inkjet Engine Section, Printer Interface Section(PO), 1284
Parallel Port Interfaced and Host Interface Section(HI).
(See Figure 14 )

• Image processing Section
: Full quality RGB to CMYK or 6 color conversion
Photo/Text detect allows mixed documents.
Arbitrary image scaling using true interpolation.
Automatic contrast and brightness correction.
Error diffusion or programmable dither arrays.
• JBIG compression block
: JBIG/MH/MR/MMR Comp. & Decomp.
• Inkjet engin format
: Rotates data to suit the Lexmark engin format
• Printer Interface section
: Supports a single byte DMA with 150MHz clock speed.
• Microcontroller interface part
: 8bit multiplexed bus acts as address and data bus
• General purpose input and output port
: 30 GPIO pins.

3-5-1-1 Physical
Core

Process

Drive power
/frequency

Package

Design

8bit Microcontroller

0.35U
CMOS

3.3V
75MHz

208pin
QFP

OASIS




3-20

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CIRCUIT DESCRIPTION

3-5-2 OA-980 DESCRIPTION BY FUNCTIONS

3-5-2-1 Clock Control Section

2. Power On/Off Reset

Internal drive frequency operates classified into two parts.
Almost all On-chip µ Controller(8bit) Module drives by
Main_clock, and Printer Interface Section(PO) only drives
by Base_clock. Main_clock and Base_clock may be set
with frequency each desires by receiving Clock supplied
from outside by PLL Logic.
At present, system Main_clock and Base_clock are each
set in 48MHz, and may be checked at SDRAM_CLK of
SDRAM(U27). Clock supplied from outside does not use
separate crystal, but 48MHz is supplied by IP_CLK,
CLK_Out of Jupiter3(U15).
The one which pulled up Main_EXT(pin46) and
Base_EXT(pin43) is the Option using internal PLL, and, at
the time of Pull-up, it does not use internal PLL, but just use
Clock supplied to Main_CLK(pin45) and Base_CLK(pin42)
as Main_clock and Base_clock.

• Power On Reset
Depending on the signal state of Reset_L(pin35), OA980 may be reset in the manner of hardware. Reset is on
at “Low” state and, at “High” state, Reset is Off.
Accordingly, in order for OA-980 to operate normally,
after the System initialization, the /IP_RST of
Jupiter3(U15-31) shall be converted to “High” state. In
order for safe Hardware Reset to be accomplished, it
should be maintained in “Low” state for more than 1000
Main_clock(10uS).
• Power Off Reset
PWR_down(pin107), for SDRAM(U27) to advance to the
Self Refresh Mode Reset_L(pin35) at the Power Safe
Mode, shall advance to the Reset Mode earlier than the
minimum of 1uS. This System does not use it.

3-5-2-2 Internal Microcontroller
3. Hook function : Self-initialization function
8bit RISC Microcontroller is built-in, and Address area
which Micro-controller control is 64kbyte. At the same time
when cache is built in for control of more efficient SDRAM,
it possesses Hook function, namely the internal Boot ROM
256byte required for self-initialization function, too.
0x0000 ....
0x00ff
1. Memory
Map

Boot ROM

0x0100

SDRAM program store

....

and

0xfbff

SDRAM stack

0xfc00 .... 0xffff

HW registers

In case self ROM is connected to OA-980 as in Figure (15),
although the execution file is downloaded to SDRAM, the
execution file is initialized by receiving download from
Memory. This execution file is the ROM File supporting so
that all functions of Image processing related to OA-980 as
well as register setting value required for initialization(Copy,
PC scan, MultiMediaCard Print) may operate normally.

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3-21

CIRCUIT DESCRIPTION

Hardware Reset "High"

ROM connected

Boot ROM checks
connection of ROM

No ROM
After Software Reset, advance to
preparation mode to download execution

Download execution file on SDRAM(U27)
from

file from Jupiter 3

Download the execution file to SDRAM (U27)
from Flash Memory (U9) of Jupiter 3

Initialize OA-980 by the execution file
downloaded on SDRAM (U27) & have it to
enter in the operation mode.

"Ready"




3-22

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CIRCUIT DESCRIPTION

3-5-2-3 Host Interface Section
(HI : Jupiter3 interface section)

Unlike the existing DuoIP sequence, OA-980 exchanges
Command and data with Jupiter 3 in the Multiplexed 8bit
Bus(data & address) mode. Namely, it does not receive
Address and Data simultaneously, but receive data after
receiving Address first using Data Bus of Jupiter3.
HI Section also supports the data movement in the DMA
mode. Accordingly, when transmitting large capacity of
Image data(RGB data of MultiMedCard), it uses the DMA
mode.

1. Multiplexed 8bit Bus(data & address) mode
nce Jupiter3 may not support Multiplexed 8bit Bus(data &
address) mode used by OA-980, it configured a circuit additionally so that mutual Interface may be possible by making
required signal using two NOR GATE(UR16) and one OR
Gate(U40).
As REG_ADDR_VAL(pin27) signal is the signal for OA-980
to play a role of informing that value input into 8bit of OA980 Bus is not Data but Address value, when ADDR(10) is
“High” and /IP_CS, /WR “Low,” “High” shall be generated as
shown in the circuit diagram. See figure (16). At this time,
since /WR_L(pin31), the Write signal of OA-980, should be
maintained in “High,” the signal shall be generated in case
actual Write is accomplished with one OR Gate(U18),
namely, only when ADDR(10) is “Low,” When
REG_ADDR_VAL (pin27) is “High,” input the Address value
of OA-980, and when “Low, from the standpoint of Jupiter3,
it may Read or Write One Byte Data using two Cycles by
Reading or Writing relevant Data of (to) Address.




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3-23

CIRCUIT DESCRIPTION

3-5-2-4 Scanner Interface Section(PI)
2. DMA mode
DMA mode is the method of Reading or Writing Data in
Block unit by activating two DMA Channels of OA-980
respectively. When A8 or A9 is “Low” and when /IP_CS is
“Low,” GDMA of Jupiter3 Reads or Writes in Memory to
Memory mode, as the appropriate DMA Channel is activated. See Figure (17). Of course, it performs required DMA
register setting in Multiplexed 8bit Bus(data & address)
mode before DMA is accomplished.

It directly controls 16bit ADC and 600dpi color CCD connected to CCD, processes Shading and Gamma correction, the basic course required for Image process of RGB
12bit(8+4bit) data transferred from ADC, then performs the
function of storing the data in SDRAM of OA-980 through
MI Block.




3-24

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CIRCUIT DESCRIPTION

3-5-2-5 Image Processing Section(IP)

3-5-2-8 Rotate and Inkjet Engine Section

After performing color compensating required for the
System for RGB digital data input, it conducts the role of
converting to CMYK data printable. IP Block consists of four
Modules mainly.

After Image CMYK Data which ended all image processing
is converted to Format so that Inkjet Printer Engine may
print, it plays the role of saving them on the external
SDRAM(U27).

- Photo text detect

The Data stored in the external SDRAM(U27) is transferred
to Head Control Part of Jupiter3 through MI and HI Block of
OA-980 by DMA of Jupiter3, and then printed by Spitfire.

- Zoom and dpi adjust
- Color space conversion
- Half toning and loss less JPEG

3-5-2-9 Printer Interface Section(PO)

3-5-2-6 Memory Interface Section(MI)
MI Block consists of four Channels, located between external SDRAM(U27) and blocks inside OA-980, and is controlled so that the flow of all data may be accomplished more
efficiently.

3-5-2-7 JBIG Comp & Decomp Section
By condensing Image data processed at Blocks into JBIG
algorithm and save them in external SDRAM(U27), it shall
have Memory domain used more efficiently. Naturally, even
when moving Image data which was condensed to JBIG, to
other block, it is conveyed to Image data freed from condensation.

When the Image process required for PC Scan (See Fig.
19) is completed, OA-980 requests that /IP_REQ signal in
PO_Block should take the Scan Image Data from the
External DMA Block of Jupiter3(U15). The External DMA
Block of Jupiter3(U15) generates not only /IP_ACK signal
to bring Data by Byte as the unit but also /RD signal to bring
the Data. The External DMA Block of Jupiter3(U15) stores
the Data in SDRAM(U9) and then restore /IP_ACK as
"High" to receive a next Data/.
As DMA Timing properties between Jupiter and OA-980 do
not match, /IP_ACK0 is separately created to prevent BUS
collision by using one OR-Gate(U18-3) so that OA-980 may
use the BUS only in /RD in the way of inputting the /ACK
signal into OA-980 only when /RD is actually produced,
while Jupiter3 may use in /WR, as shown in the Timing of
Fig. 18. That is, since OA-980 sends Data to BUS during
/ACK signal section, BUS collision occurs between DMA of
Jupiter3 and /WR section, where /RD, /WR are all carried
out during /ACK.




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3-25

CIRCUIT DESCRIPTION

3-5-3 COPY DATA FLOW FOR OA-980

3-26

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CIRCUIT DESCRIPTION

3-5-4 OA-980 I/O PORT

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3-27

CIRCUIT DESCRIPTION

3-28

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CIRCUIT DESCRIPTION

3-6 CCD MODULE and ADC Part
3-6-1 CCD MODULE GENERAL
DESCRIPTION

TG, CLK,RS TO BE USED ARE AS FOLLOWS.

CCD Module has the structure transferring RGB data to
be converted into the digital signal through ADC on the
basis of the level of analog signal to OA-980, the Image
Processor, which divides the signals reflected by emitting
light to document into R, G, B data according to each frequency.
The voltage used in the CCD Module are 11.75V for analog signal of RGB, 5V as input for CCD and other elements. The input part of CCD Module consists of
CCD_TG, CCD_CLK1,CCD_CLK2 and CCD_RS, the
output of OA-980(U21), CCD_TG controls the scan line,
which is set variously according to copy mode, color and
mono, and scan resolution. CCD_CLK1 and CCD_CLK2
are clocks by each pixel, CD_RS is reset signal of each
pixel. Since the pixel of 1/2 cycle of CCD_CLK1 and
CCD_CLK2 is sampled, color signal sends RGB data to
output for 1/2 cycle, and controls the pixel of 1/2 cycle for
mono. Therefore, the output signal from the CCD Module
classifies the signals received by RGB channel according
to each frequency band and uses each video
signal(CN1) as the input data of ADC(U16).

Color Copy

Mono Copy

5mS

2.5mS

CCD_CLK1,CCD_CLK2

1.6uS

800uS

CCD_RS

800uS

400uS

CCD_TG

< TG, CLK,RS >

< TG, CLK,RS >

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CIRCUIT DESCRIPTION

3-6-2 ADC
Description ADC(U16) is the input data that change the
analog signal of RGB to the digital signal of 16bit (8bit +
8bit) so that it may be used as the input of OA-980(U21),
image processor, while VSMP(_ADC_VSMP) is used as a
sampling signal for each pixel of RGB. That is, it controls
the signal for one pixel like CLK1,CLK2 of CCD and its
maximum sampling rate is of color 2MHz mono 4MHz.
MCLK(ADC_CLK) is CLK for the signal of VSMP, the relation between MCLK and VSMP is as follows.

Color

Mono

VSMP

800ns(1.25MHz)

400ns(2.5MHz)

ADC_CLK

133ns(7.5MHz)

133ns(7.5MHz)

1:6

1:3

VSMP:MCLK

The relations among SCK(ADC_SCK), SDI(ADC_SDI) and
SEN(ADC_SEN) are equivalent to the control bit for register setting to mode, output signal appears in 8bit unit from
OP0 to OP7, and 5V/3.3V will be used as the power source.

16.5 MCLK PERIODS

ADC_CLK
VSMP

OP[7:0]
(DEL = 00)

RA

RB

GA

GB

BA

BB

RA

RB

GA

GB

BA

BB

RA

RB

GA

GB

BA

BB

RA

RB

GA

GB

BA

BB

RA

RB

GA

GB

BA

BB

OP[7:0]
(DEL = 01)

BA

BB

RA

RB

GA

GB

BA

BB

RA

RB

GA

GB

BA

BB

RA

RB

GA

GB

BA

BB

RA

RB

GA

GB

BA

BB

RA

RB

GA

GB

OP[7:0]
(DEL = 10)

GA

GB

BA

BB

RA

RB

GA

GB

BA

BB

RA

RB

GA

GB

BA

BB

RA

RB

GA

GB

BA

BB

RA

RB

GA

GB

BA

BB

RA

RB

OP[7:0]
(DEL = 11)

RA

RB

GA

GB

BA

BB

RA

RB

GA

GB

BA

BB

RA

RB

GA

GB

BA

BB

RA

RB

GA

GB

BA

BB

RA

RB

GA

GB

BA

BB




16.5 MCLK PERIODS

ADC_CLK
VSMP

OP[7:0]
(DEL = 00)

RA

RB

GA

GB

BA

BB

RA

RB

GA

GB

BA

BB

RA

RB

GA

GB

BA

BB

RA

RB

GA

GB

BA

BB

RA

RB

GA

GB

BA

BB

OP[7:0]
(DEL = 01)

BA

BB

RA

RB

GA

GB

BA

BB

RA

RB

GA

GB

BA

BB

RA

RB

GA

GB

BA

BB

RA

RB

GA

GB

BA

BB

RA

RB

GA

GB

OP[7:0]
(DEL = 10)

GA

GB

BA

BB

RA

RB

GA

GB

BA

BB

RA

RB

GA

GB

BA

BB

RA

RB

GA

GB

BA

BB

RA

RB

GA

GB

BA

BB

RA

RB

OP[7:0]
(DEL = 11)

RA

RB

GA

GB

BA

BB

RA

RB

GA

GB

BA

BB

RA

RB

GA

GB

BA

BB

RA

RB

GA

GB

BA

BB

RA

RB

GA

GB

BA

BB




3-30

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CIRCUIT DESCRIPTION

3-7 THUNDERBOLT ASIC DESCRIPTION
3-7-1 ENTIRE DESCRIPTION
THUNDERBOLT ASIC is configured with SERIAL INTERFACE INPUT PORT interfacing Main controller, 2 DC-DC Converter
Controllers, Power On Reset Generation Circuit, and Motor drive part.

3-7-2 THUNDERBOLT FUNCTION DESCRIPTION
3-7-2-1 SERIAL INTERFACE INPUT PORT
To MAIN CONTROLLER(S3C46MOX(Jupiter3)), /TBCS,TBCLK,TBDO are connected with MAIN CONTROLLER (S3C46MOX
(Jupiter3)), and see the figure for Timing.

Tcs-sclk
Tcs-sclk

/ TBCS
Data Latcked on the rising edge of SCLK

TBCLK
Tdhd

Tdsu

TBDO

bit 1

bit 2

bit 3

bit 4

bit 5

bit 6

bit 7

bit 8

bit 9

bit 10

bit 11 bit 12 bit 13

LSB

SDI stays at
last value

MSB

time
< Figure 21. SERIAL INTERFACE INPUT Timing Diagram >

Parameter
Fclk
Tclh
Tcll
Tcs-sclk
Tsclk-cs
Tdsu
Tdhd
Trd
Tfd
Trc
Tfc

Description
Serial clock frequency
SCLK high width
SCLK low width
Delay nCS falling to first SCLK rising
Delay last SCLK rising edge to nCS rising
Data valid to SCLK set up time
Data hold time
SDI rise time
SDI fall time
SCLK rise time
SCLK fall time

Min
125
125
250
250
125
125
5
5
5
5

Typ
2.5
200
200
800
400
200
200

Max
4
20
20
20
20

Units
MHz
nsec
nsec
nsec
nsec
nsec
nsec
nsec
nsec
nsec
nsec

< Figure 21-1. SERIAL INTERFACE INPUT Timing Specification >

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3-31

CIRCUIT DESCRIPTION

3-7-2-2 DC-DC Converter Controller
This System uses VCC by converting it to +5V, and +3.3V, the power source of the system, is obtained from the +5V converted by using REGULATOR IC to use. VPH is used as the head power by converting it to +11.82V.

< Figure 22. DC-DC Converter Controller Diagram>

3-7-2-3 Power On Reset Generation Circuit
This System does not use Power On Reset Generation Circuit.

3-7-2-4 Motor drive part
This System uses DC Motor for CR(Carriage Return) MOTOR, and Stepper motor for LF(Line Feed) motor.
• CR(Carriage Return) MOTOR drive circuit description

1 CR MOTOR specification
CR MOTOR performs reciprocating movement of CARRIAGE from side to side so that INK CARTRIDGE may print on the
paper.
• MOTOR TYPE : PM DC MOTOR “declination”
• Drive voltage : +30VDC
• Winding line resistance : 12Ω ± 2Ω
• Driver IC : Thunderbolt

2. CR MOTOR drive
2-1. DC Motor operation
DC Motor drive uses positive phase terminal(+) and anti-phase terminal(-) bound together respectively using 2nd Motor
Driver(MD2) of Thunderbolt ASIC inside, and controls two-way operation of DC motor, by receiving input of "DIR_DCM,"
7th bit among "PWM"(DC-motor Pulse Width Modulation) signal, output of Jupiter-III, and 13Bit Serial Port Inputs("TBDO"
Signal) coming into Thunderbolt ASIC transmitted from Jupiter-III. This Driver is driven by VBULK power source(+30V),
and on terms of Motor Stall not being generated, it is designed to supply 750mA current, and 2.4A current to output terminal for maximum length of 100ms.

3-32

Repair Manual
Samsung Electronics
- This Document can not be used without Samsung's authorization -

CIRCUIT DESCRIPTION

2-2. Driver Spec.
1) Absolute Maximum Rating
Name

Description

Vout
Iout

Condition

Min

Max

Units

DC Motor Driver Output Voltage

42

Volts

DC Motor Driver Output Current

2.4

A

2) DC Specification
Name

Description

Condition

Min

I peak

Peak DC Motor Driver Output Current

Not Stalled

I out

DC Motor Driver Sustaining Current

On Time=100ms

1.6

Max

Units

0.75A

Volts

2.4

A

3) AC/Transient Specifications
Name

Description

Condition

Min

Nom

Max

Units

fPWM

PWM frequency

Ta = 25C

19

20

21

KHz

4) Truth Table
DIR_DCM
0
0
1
1

PWM
0
1
0
1

#NAME?
On
Off
On
Off

#NAME?
Off
On
Off
Off

#NAME?
On
On
On
Off

#NAME?
Off
Off
Off
On

3. LF(Line Feed) MOTOR drive circuit description
3-1. LF MOTOR
• MOTOR TYPE : 2-2 Bi-polar Stepper Motor
• Drive Voltage : +30V
• Spherical line resistance : 5Ω ± 7%
• Driver IC : Thunderbolt
3-2. LF Motor Operation
LF Motor(Stepper Motor) drive uses the first Motor Driver(MD1) in Thunderbolt ASIC, and Drive Pulse is output from 4
terminals of A+, A-, B+,and B-. two H letter type Drivers. Drive Pulse controls size and flow direction of current(A+ =>
A- or A- => A+) according to bit7-bit No.13 signals among 13Bit Serial Port Inputs("TBDO" Signal) coming into
Thunderbolt ASIC transmitted from Jupiter-III. This Driver is driven by VBULK power source (+30V), and on terms of
motor stall not being generated, it is designed to supply current of 600mA, maximum 700A current to each phase of
motor.

Repair Manual
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- This Document can not be used without Samsung's authorization -

3-33

CIRCUIT DESCRIPTION

3-3. Driver Spec.
1) Absolute Maximum Rating
Name

Description

V out
I out

Condition

Min

Max

Units

DC Motor Driver Output Voltage

42

Volts

DC Motor Driver Output Current

0.7

A

2) DC Specification

3-34

Name

Description

Condition

I peak

Peak DC Motor Driver Output Current

Not Stalled

Min

Max

Units

0.6A

Volts

Repair Manual
Samsung Electronics
- This Document can not be used without Samsung's authorization -

CIRCUIT DESCRIPTION

◊ OPE
3-8 Basic concept
3-8-1 OVERVIEW

3-8-2 UART

OPE BOARD is separated from the Main Board functionally, and operates entire Micom(HT48C5A-000Z) in the
Board. OPE and Main exchange mutual information using
UART(universal asynchronous receiver/transmitter) channel. Also, Resetting of OPE is designed to control at the
Main. Micom in OPE performs key-scanning and LCD, LED
display control, and senses document detect, Scan position
and so on. When information is generated from OPE(key
touch, sensor level change, etc.), it sends specific code
coping with the situation to Main, and the Main operates
system by analyzing this code. If the Main tries to display
data on OPE, the Main sends data to OPE via UART line
on the basis of the format specified, and OPE displays it to
LCD.

OPE and MAIN exchange information mutually by using
asynchronous communication mode(UART), and in full
duplex. Band rate is 9600bps, and uses 7.37MHz resonator
as oscillating element. It engages in communication with
8bit data without parity bit. UART line has two lines for Tx
and Rx, and the default level is in the 'high' state. For communication, the start bit(low level) is transmitted before 8bit
data. When the data transmission(8bit) is completed, the
high state is maintained as the stop bit(high level) is transmitted. Data is transmitted from LSB(DO), and MSB(D7) is
transmitted lastly.

• This system does not apply document detect and SCAN
position.

3-9 UART operation
3-9-1 UART COMMUNICATION
1) UART TX FORMAT

2) UART RX FORMAT

Codes for change of KEY, TOUCH, SENSOR LEVEL and
so on are transmitted in single code without PRE/POST
DATA, and OK or Error messages to check if communication is performed properly are also transmitted in single
code. Provided that, in case the Main requested a certain
value(LCD, other register) particularly, data requested is
transmitted followed by sending Post Data('EOH') first.

Data being received will be arranged to be received according to the following specified format to know what data they
are.
a)

Type of data received

b)

Number of data (n+1) received after.
----------

c)

DATA(N)
----------

d)
D0
start

bit

D1

D2

D3

D4

data 8bit (D0 ~ D7)

D5

D6

Check sum(1)

D7
stop

bit

DATA are received in the sequence of A,B,C, and D, and
the Check sum to check if the transmission is made properly will be found by doing XOR data from A to C.

Repair Manual
Samsung Electronics
- This Document can not be used without Samsung's authorization -

3-35

CIRCUIT DESCRIPTION

3-9-2 UART COMMUNICATION DATA
1) UART transmission DATA(received by the Main side)
Types

Status

DATA

used port

key data

ON

11H~ 88H

PORT PC0~PORT PC7

OFF

af H

ON

a5 H

OFF

a4 H

ON

a1 H

OFF

a0 H

SCAN POSITION sensor

DOC. detector sensor

For initial use of initial OPE
UART communication

LCD interface of OPE

Level

Remarks

L
H

PORT PB3

H

SCX-1100 not applied

L
PORT PB-5

L

SCX-1100 not applied

H

ee H

After power on, generated only once

OK

b0 H

(Note 2)

ERR

c0 H

OK

df H

ERR

d0 H

When failed in the interface once &
when succeeded first(Note 2)

Self initial generation of OPE

e2 H

LCD data keeps status quo

Send data requested by the Main

e0 H

Data types:LCD, other(Note 3)

(Note)

1. After this, keep waiting until there is response from the Main.
2. The case of longer time(longer than 10ms) elapsed longer than waiting time required for Interface is regarded as fail
3. After this code went out, then data requested it goes out.

• KEY MATRIX
(1_H)

(2_H)

(3_H)

(4_H)

(5_H)

(6_H)

(7_H)

(8_H)

(_1H)

INK

RESERVED

RESERVED

RESERVED

CONTRAST

RESERVED

RESERVED

RESERVED

(_2H)

PAPER

RESERVED

RESERVED

RESERVED

COPY PAGE

RESERVED

RESERVED

RESERVED

(_3H)

SET UP

RESERVED

RESERVED

RESERVED

ZOME RETE

RESERVED

RESERVED

RESERVED

(_4H)

SCROLL NOLUM-UP

RESERVED

RESERVED

RESERVED

BLACK COPY

RESERVED

RESERVED

RESERVED

(_5H)

SCROLL NOLUM-DOWN RESERVED

RESERVED

RESERVED

COLOR COPY

RESERVED

RESERVED

RESERVED

(_6H)

CANCEL

RESERVED

RESERVED

RESERVED

SPECIAL

RESERVED

RESERVED

RESERVED

(_7H)

ENTER

RESERVED

RESERVED

RESERVED

SCAN TO

RESERVED

RESERVED

RESERVED

(_8H)

QUALITY

RESERVED

RESERVED

RESERVED

POWER

RESERVED

RESERVED

RESERVED



3-36

Repair Manual
Samsung Electronics
- This Document can not be used without Samsung's authorization -

CIRCUIT DESCRIPTION

2) Received DATA(transmitted by MAIN)

1. DATA TYPE
DATA types

Meaning

a1 H

LCD DISPLAY DATA(FULL LINE)

a2 H

LCD DISPLAY DATA(1'ST LINE)

a3 H

LCD DISPLAY DATA(2'ST LINE)

a4 H

LED DATA

b1 H

Change of LCD types

Remarks

2. NO. OF DATA
• In case DATA is N BYTE, N+1

3. DATA
In case DATA TYPE is LCD DATA, it is configured with ASCII CODE to be displayed.
In case DATA TYPE is LED DATA, it is 1 BYTE.
LED DATA BIT ASSIGNMENT:
DATA BIT

BIT 0

BIT 1

BIT 2

BIT 3

BIT 4

BIT 5

BIT 6

BIT 7

LED NO.

LED 0

LED 1

LED 2

LED 3

LED 4

LED 5

LED 6

LED 7

4. CHECK SUM
The value done XOR all of them from DATA TYPE to DATA.

5. Change of LCD types
<2 LINE * Change to 16 character LCD>
DATA TYPE
NO. OF DATA
DATA
CHECK SUM

: b1 H
:2
: 26 H
: b1h XOR 2 XOR 16h = a5 h

<1 LINE * Change to 16 character LCD>
DATA TYPE
NO. OF DATA
DATA
CHECK SUM
DEFAULT

: b1 H
:2
: 26 H
: b1h XOR 2 XOR 26h = 95 h
: 2 LINE 16 Character LCD

In case the MAIN does not change the LCD types, it is the Default LCD state of OPE MICOM.
* SCX-1100 uses 1 LINE LCD.

Repair Manual
Samsung Electronics
- This Document can not be used without Samsung's authorization -

3-37

CIRCUIT DESCRIPTION

3-10 I/O PORT configuration and use usage
It has 32 I/O Ports, and 24 Ports of them are arranged to decide I/O direction with Software Control, and the rest 8 Ports are
arranged to be used for Input or Output only. All of I/O Ports are classified into four Blocks according to the characteristics of
I/O Control, and each Block consists of 8 Ports.
Type

I/O Control

I/O direction

USE

Remarks

PA X

Byte Control

I/O => Output

LED Control

Used as LCD VCCCONTROL in SCX-1100.

PB X

Byte Control

In : 4, Out : 4

UART, LCD, Sensor

SCX-1100 SENSOR not applied.

PC X

Byte Control

I/O => Input

Key Input

PD X

Byte Control

I/O => Output

LCD Data, Key Scan

1) Assignment of Port PAX
-. PA0

: LCD VCC CONTROL SIGNAL (POWER ON/OFF)

-. PA1

: LED 1

-. PA2

: RESERVED

-. PA3

: RESERVED

-. PA4

: RESERVED

-. PA5

: RESERVED

-. PA6

: RESERVED

-. PA7

: RESERVED

2) Assignment of port PBX
-. PB0(Output)

: LCD Enable

-. PB1(Output)

: LCD R/W

-. PB2(Output)

: LCD RS

-. PB3(Input)

: GND

-. PB4(Input)

: Unused (Pull-up)

-. PB5(Input)

: GND

-. PB6(Output)

: UART TXD in Main UART

-. PB7(Input)

: UART RXD from Main UART

LCD ON/OFF
In case of VCC applied to LCD No. 3 PIN (BACKGROUND LEVEL), all the LCD screen will be erased. When the power is
applied, MICOM PA0~7 are Default High LEVEL, so LCD will be OFF. From Jupiter3, LCD will be ON simultaneously with OPE
reset.
Q1, Q2 have the function of simply doing On/off only.
When pressing the Power Key, actual power is not turned Off but 11.75V terminal of Thundervolt Off in the Main, while simply
the LCD DISPLAY should not appear in OPE. At this point, Micom should be operated normally to recognize the Key when
pressing the Power key again. [The same effect as Power save]

3-38

Repair Manual
Samsung Electronics
- This Document can not be used without Samsung's authorization -

4

SCHEMATIC DIAGRAMS

4. Schematic Diagrams
4-1 Main Circuit Diagram (1/8)

1

A

2

3

4

7

A

SHEET 6

SHEET 2
CONNETOR PART

IMAGE PROCESSING PART
SCANIP.SCH

CONN.SCH
B

B

SHEET 7

SHEET 3

MODEM PART

CONTROLLER PART
SAMSUNG ELECTRONICS CO., LTD.
ALL RIGHTS RESERVED

6

5

JUPITER.SCH

MODEM.SCH

SHEET 4

SHEET 8

C

C

MEMORY PART

PARALLEL PORT PART
PARA.SCH

MEM.SCH
D

D

SHEET 5
DRIVER PART
DRIV.SCH

E

ED. DATE

E

1

01.08.06

3

2

SIGN

A
R
P
.

1

2

3

4

5

6

REF NO

C
H
E
C
K

E
N
G
.

SEC

D
W
G
.

DIAGRAM

SCX-1100
Main Board
REV 0.2
1/8

Repair Manual
Samsung Electronics
- This Document can not be used without Samsung's authorization -

4-1

SCHEMATIC DIAGRAMS

Main Circuit Diagram (2/8)

1

2

11.75V

30V

4

3

5

6

7

5V

3.3V

R8
5.1K

A

CN1-26
CN1-25
CN1-24
CN1-23
CN1-22
CN1-21
CN1-20
CN1-19
CN1-18
CN1-17
CN1-16
CN1-15
CN1-14
CN1-13
CN1-12
CN1-11
CN1-10
CN1-9
CN1-8
CN1-7
CN1-6
CN1-5
CN1-4
CN1-3
CN1-2
CN1-1

30V

CHY
CHX

5V
C67
100uF
16V

C66
100nF

CN11-1
CN11-2
CN11-3
CN11-4

PDATA3
PDATA2
PDATA1
PDATA0
PLOAD
PENABLE
PH_ID1
PH_ID2
OK2PRT
C1
220pF

A

PULLUP
C205
100nF

3.3V

_SF_POR
ACLK
AGATE
LDCS
LATCHCTL
PCLK

L11

C49
100nF

C50
330uF
50V

R43
10K

R155
1.5K

5VA
BD6

0,5%

BD7

DGND

R154
10K

C118
100uF
16V

C119
100nF

0

L6

0

L12

0

10K

USB20-4W2100
BD13
BD11
BD12
BD10

CN8-1
CN8-2
CN8-3
CN8-4

C209
100nF

C203
22pF

C204
22pF

L5

C7
220pF

R153
R144
R152

0,5%

L9

GND30
AGND

DGND

L10
0

FGND

DGND

5V

1
2
3
4
5

_STB
CD(0:7)

CN14-1
CN14-2
CN14-3
CN14-4
CN14-5
CN14-6
CN14-7
CN14-8
CN14-9
CN14-10
CN14-11
CN14-12
CN14-13
CN14-14
CN14-15
CN14-16
CN14-17
CN14-18
CN14-19
CN14-20
CN14-21
CN14-22
CN14-23
CN14-24
CN14-25
CN14-26
CN14-27
CN14-28
CN14-29
CN14-30
CN14-31
CN14-32
CN14-33
CN14-34
CN14-35
CN14-36

C81
100pF

C80
100pF

C82
100pF
DGND

DGND

DGND

(UNUSED)

_ACK
BUSY
PE
SLCT
_AUTOFD

R209
0

DGND

DGND

5V

5V

C208
100nF

11.75VA

DGND

_INIT
_ERROR

_SLCTIN
C338
100pF

C337
100pF

DGND

0
0

(U nused)

C
MODEM_TX1
MODEM_TX2

SPK_OUT+

R146
4.7K

CN13-1
CN13-2

SPK_OUT-

REMOTE
R137

1K

R135
DP

1K

_HOOK_OFF
_RING_DET

CN12-1
CN12-2
CN12-3

R145

100

C182
100nF

C181
100pF

Q5 3
2SC2812L6-TA

_CML_ON

2

C194
100pF
(UNUSED)
AGND DGND

CN3-1
CN3-2
CN3-3
5045-03A
3711-000198|scon_pin3_2.5mm

CR_NA
CR_A

R125
3K

1TP230

(Unused)

COVER_OPEN

C197
100nF

RECALL

LIU

DGND

DGND

MODEM_RX

DGND

C
B

E

DGND

R126
2K

AGND
AGND

5V

Q4 3
2SC2812L6-TA

D
11.75V

LF_B
LF_NA
LF_A
LF_NB

3.3V

R124
3K

1 TP77

CN4-4
CN4-3
CN4-2
CN4-1
5045-04A
3711-000225

E_DP

2
R45
22K

C3
100uF
25V

R123
2K
HOME

C58
220pF

5V

R24
100
1/8W

R44
22

_P_PICKUP
AGND

5V

DGND

R25
10K

5V

R28
10K

5V

R378
0

DGND

11.75V
Q7
KSA1203_YTF

U6

R38
10K

CN6-5
CN6-4
CN6-3
CN6-2
CN6-1

SCAN_A
SCAN_NA
SCAN_B
SCAN_NB

U5
RPI-441C1

(Unused)

5V

R33
10K

D

R23
47K

5V
100nF
C33

INV_POWER

DGND

TP365

CCD_TG
CCD_CLK1
C95

10nF

C98

10nF

C96

10nF

R37

CCD_CLK2

VOUT_G
VOUT_R
100

R36

TP364

R377
10K

OPE_TXD

R375
680

DGND

R26

0

100

R27
LAMP_ON

TP78

D8
RB420D T147
TP367

R366
TP366
1K

R373
4.7K

1

3

Q1
2SC2812L6-TA

A
R
P
.

2

CD74HCT244M

CCD

DGND
AGND

GND12

DGND

DGND
DGND
DGND
DGND

2

01.08.06

2

3

C
H
E
C
K

E
N
G
.

D
W
G
.

SCX-1100
Main Board
REV 0.2

DGND

DGND

1

1

SIGN

_OPE_RES

C39

C38

C32

C35

ED. DATE

TP363

_OPE_RST
OPE_TXDD

47pF

R34
R29

47pF

100
100

47pF

0
0

47pF

R35

E

C333
100nF

C334
100nF

CCD_RS

VOUT_B

0

R30

FPC_24

4-2

L7
L8

3.3V

1
2
3
4
5
6
7
8
9
10
11
12
13
14

DGND

E

ADF_PHA
ADF_IA0
ADF_IA1
ADF_PHB
ADF_IB0
ADF_IB1
_ADF_DET
_D_DET
_D_SCAN
REG1_SEN

GND30

CN9-1
3711-002815
DGND

CN5-24
CN5-23
CN5-22
CN5-21
CN5-20
CN5-19
CN5-18
CN5-17
CN5-16
CN5-15
CN5-14
CN5-13
CN5-12
CN5-11
CN5-10
CN5-9
CN5-8
CN5-7
CN5-6
CN5-5
CN5-4
CN5-3
CN5-2
CN5-1

B

DGNDFGND

C336
100pF

INV_POWER

5V

CN16-1
CN16-2
CN16-3
CN16-4
CN16-5
CN16-6
CN16-7
CN16-8
CN16-9
CN16-10
CN16-11
CN16-12
CN16-13
CN16-14
CN16-15

Q10
2SC2812L6-TA

OPE_MAGIC
C97
100nF

5V

DIN15

180K
R383
68K

R136 47K

C

R380

KEYTONE
OPE_TXDD
_OPE_RES
OPE_RXD

R138 47K

SAMSUNG ELECTRONICS CO., LTD.
ALL RIGHTS RESERVED

5V

30V

1.5K

R148 10K

R384

CN7-1

R207 10K

B

Q9
KSA1182-Y

R147 10K

5V

R149 10K

(UNUSED)

GND12 GND30 DGND

3

4

5

6

REF NO

SEC

CONNECTION

2/8

Repair Manual
Samsung Electronics
- This Document can not be used without Samsung's authorization -

SCHEMATIC DIAGRAMS

Main Circuit Diagram (3/8)

1

3

2

4

5

7

6

3.3V

BD4
0,5%
3.3V
VB2

A

I0 OUT
GND
2

TP3

3

C92
100nF

C88
100nF

C87
100nF

C110
100nF

C78
100nF

3.3V
U13
XC61FN3112MR

_POR
DGND

C65
1uF
50V

C99
100nF

C113
100nF

C77
100nF

A

R77
100K

C109
100nF

1
C64
100nF

2.5V

C111
100nF

U11
LF25CDT

3.3V

C76
100uF
16V

C90
10nF

C79
100nF

PLLGND

C91
100nF

3.3V

DGND
DGND

DGND

DGND

R101
4.7K

PLLGND

DGND

3.3V

DATA(0:15)

B

ADDR(0:19)

R76
R100

0
0

R208
R90
R91

100
100
100

R71
R83
R86
R85

100
100
100
100

R93

100

R55
R56
R50
R59
R51
R60

100
100
100
100
100
100

_POR
_F_POR

C220
1nF

_IP_INT
_MODEM_IRQ
PH_ID1

3.3V

BD14
CIM21J121NES

_ROM_CS
_IP_CS
_MODEM_CS
_GPIO_CS

U37
FS781BZB

C125

22pF

C219

22pF

B

X1
SD16150J7-10.000M

C216

R107

245DIR

100

100nF

_WR
_RD
_SCAS
_SRAS
_SCS0
_SCS1

DGND
R204
3.3K

DGND DGND
R95

SAMSUNG ELECTRONICS CO., LTD.
ALL RIGHTS RESERVED

R3
10K

DGND

C217
0.68nF

100
DGND

IPCLK

U15

R61
R11

S3C46MOX

100
100

SCLK
SCKE
DQM0
DQM1

C89
820pF

C93
820pF

3.3V

C70
100pF
DGND

PD(0:7)

C

A20
A21
A22
_OPE_RST
_IP_RST

R58
R57
R73

DGND

R75
R74
R94
R92

100
100
100

4.7K
4.7K
4.7K
4.7K

C

_TRST
TDI
TCK
TDO
TMS

RA1
100
1/16W
RA2
100
1/16W

ACLK
AGATE
LATCHCTL
PCLK
PDATA3
PDATA2
PDATA1
PDATA0
PENABLE
PLOAD
LDCS
KEYCLICK

RA5

_P_SLCTIN
_P_STB
_P_INIT
_P_AUTOFD
_P_ERROR
P_SLCT
P_PE
P_BUSY
_P_ACK

1/16W
RA4
1/16W
RA3
1/16W

USB_DP
USB_DM
PULLUP
VBUS

4.7K
R64

4.7K
R78

4.7K
R65

4.7K
R62

4.7K
R63

DGND

3.3V

TBCLK
TBDO
_TBCS
C215
1nF
DGND

D

D

DGND

3.3V
C218
22pF

R84
4.7K

R102
10M
X3
0.32768MHz

(Unused)

C112

R89

100

R80
R72
R87

100
100
100

R88
4.7K

OK2PRT
OPE_RXD
OPE_TXD
PH_ID2
_IP_REQ
_IP_ACK
_P_PICKUP
COVER_OPEN
PWM
CHYY
CHXX

22pF

DGND

E

ED. DATE

E

1

01.08.06

3

2

SIGN

A
R
P
.

1

2

3

4

5

6

REF NO

C
H
E
C
K

E
N
G
.

SEC

D
W
G
.

SCX-1100
Main Board
REV 0.2

CONTROLLER

3/8

Repair Manual
Samsung Electronics
- This Document can not be used without Samsung's authorization -

4-3

SCHEMATIC DIAGRAMS

Main Circuit Diagram (4/8)

1

2

ADDR(1:19)

3

U7

4

6

DATA(0:15)
ADDR(1:12)

7

DATA(0:15)

U9

DATA(0:15)

U8
K4S641632D-TC75

1107-001302
0

R41

5

K4S161622D-TC70

ADDR(1:11)

A

A
3.3V

VB

DQM0
DQM1
3VB

A20

R32

_SD_RAS
_SD_CAS

0
C37
100nF

_ROM_CS
_RD
_WR

3.3V

3VB

_WR
_SD_CAS
_SD_RAS
_SCS1

A21
A22

A20

_SCS0
_WR
DQM0
DQM1

DGND
_F_POR

R40
0

SD_CKE
SCLK

C54
100nF

C45
100nF
C53
100nF

C69
100nF

C52
100nF

C68
100nF

C55
100nF

C51
100nF

C57
100nF

C56
100nF

C43
100nF

C44
100nF

C42
100nF

R42
0
SCLK
SD_CKE

B

B
DGND
DGND

DGND

DGND

(Unused)
3.3V

3.3V

C4
100nF

SAMSUNG ELECTRONICS CO., LTD.
ALL RIGHTS RESERVED

C18
100nF
U2-3
74VHC08MX

U2-4
74VHC08MX

U1-3
MC74VHC32DR2

DGND

DGND

SD_CKE
_F_POR

R9

10K

R10

C6
1nF

C

10K
C8
100pF

C9
1nF

C10
100pF

_SD_RAS

U3-1
74VHC27

U1-1
MC74VHC32DR2

C

DGND
DGND

DGND

DGND

DGND

_SRAS

VB

3.3V

R13

180K

_SD_CAS

D2
MMSD914T1

Q2
KSA1182-Y
R17

VB2

R22

0

R21

U1-2
MC74VHC32DR2

_SCAS

200

(UNUSED)

1.5K

VB

Q8
2SC2812L6-TA

R12
68K
R16
200

C5
100nF

D

D
DGND

C31
16V
10uF

5.5V,5V

CHX

C30
16V
10uF

DGND
CHXX
R371
100K

U2-1
74VHC08MX

DGND
DGND
DGND

(Unused)

U2-2
74VHC08MX

CHY
CHYY
U1-4
MC74VHC32DR2

E

ED. DATE

01.08.06

3

2

SIGN

A
R
P
.

1

4-4

1

DGND

E

2

3

4

5

6

REF NO

C
H
E
C
K

E
N
G
.

SEC

D
W
G
.

MEMORY

SCX-1100
Main Board
REV 0.2

4/8

Repair Manual
Samsung Electronics
- This Document can not be used without Samsung's authorization -

SCHEMATIC DIAGRAMS

Main Circuit Diagram (5/8)

1

2
5V

3

5

4

30VA

6

7

TBDO
TBCLK
_TBCS
C84
100nF

C85
100nF

C15
22pF

C16
22pF

3.3V

A

A

GND30

11.75V

DGND
DGND
R82
R68
R69

SCAN_IA0
SCAN_IA1
SCAN_PHA

100
100
100

R20
1K

C71
22pF

R388 0
ZD1
1N4743A

C26
100nF

L1

150uH

0403-000150

R15
12K

GND30

GND30

R67

C29

C83
820pF

C86
820pF

1K

R66
56K

C23
47nF

5V

C59
22pF

2

GND30
R14

3

5V

JB27-00001A

D3
SS26

ZD2
1N4735A

C24
47nF

R18
2K

0402-001212

C62
100nF

R31

0.68

R5

0.68

C34
1nF

2007-007845|R6432_RES

SAMSUNG ELECTRONICS CO., LTD.
ALL RIGHTS RESERVED

0

C21
1nF

C20
1nF

DGND

B

C19
1nF

2203-000440

C22
47nF

C36
47nF

GND30

GND30

100
100
100

GND30

LF_A GND30
LF_NA
LF_B
LF_NB

DGND

C73
22pF

C61
100nF

DGND
R48
R47
R49

R389

R39 0

2K

PWM

30VB

GND30

SCAN_IB0
SCAN_IB1
SCAN_PHB

C41
470uF
16V
2401-001363

R19

2007-000669

GND30
DGND

C40
100nF

0403-000141

2007-000669

GND30

30VA
C75
22pF

0

GND12

3K

150uH

L2

GND30

GND30

C74
22pF

0

2007-000842

U4
17E0201

C13
47nF

GND30
R70
10K

1

SCAN_A
SCAN_NA
SCAN_B
SCAN_NB

R79
0.5

R6

2103-001041

C25
10nF

BD5
CIB32P600NES

R4

2401-000880

R7
500ohm

22uF50V

R54
2.7K

B

2203-000989

DGND
U14
TEA3718S

C28
220uF
50V

C27
100nF

C14
47nF

2007-007004

5V

R387 0

JB27-00001A

D1
SS26
30VB

GND30

CR_A
CR_NA

C72
22pF

C11
22pF

C12
22pF
2203-000626

GND30
GND30
U10
TEA3718S
GND30

C

R53

GND30

1K

C

3.3V

BD3
CIB32P600NES

5V
C60
820pF

R46
56K

C63
820pF

5V

R52
0.5
C152
100nF
C108
100nF

U22
C74LCX245FT-ELP

U17
MM74HCT273WM

R81
10K

DGND
_HOOK_OFF

GND30

DATA(0:7)

DATA(0:3)
TONE_CTL
_RING_DET

3.3V

DP
_CML_ON
RECALL
C121
100nF

TX_CTL
RX_CTL

D

_SPK_CTL
DGND

D

E_DP

_GPIO_CS
30V

30VA

30VB

_RD

DGND

U18-1
MC74VHC32DR2
BD1

0,5%

BD2

0,5%

DGND

DGND

DGND

(Unused)
E

_WR
U18-2
MC74VHC32DR2

ED. DATE

E

1

01.08.06

2

3

SIGN

A
R
P
.

1

2

3

4

5

6

REF NO

C
H
E
C
K

E
N
G
.

SEC

D
W
G
.

DRIVER

SCX-1100
Main Board
REV 0.2

5/8

Repair Manual
Samsung Electronics
- This Document can not be used without Samsung's authorization -

4-5

SCHEMATIC DIAGRAMS

Main Circuit Diagram (6/8)

1

2

3

5

4

7

6

3.3V

BD8
0,5%

C139
100nF

A

C130
100nF

C142
100nF
C153
100nF

C164
100nF

C163
100nF
C140
100nF

DGND

C165
100nF

C143
10uF
16V

C151
100nF

C180
10uF
16V

A

C176
10uF
16V

3.3V

BASEEXT

R134
4.7K

DGND

R206
4.7K

C129
10uF
16V

C128
100nF

C162
100nF
C178
100nF

MAINEXT
R120
0

R119
0

HOME
REG1_SEN
_ADF_DET
VOL_00
VOL_10
VOL_20

SDRAMDATA(0:15)

DGND

DGND

ADC_SDI
ADC_SEN
ADC_SCK

B

U27
K4S641632C

LAMP_ON
_D_DET
_D_SCAN

SDRAMDATA(0:15)

B

100

R205

_SF_POR
_MODEM_RST
ADF_PHA
ADF_PHB
ADF_IA0
ADF_IA1
ADF_IB0
ADF_IB1

R115
R117

100
100
RA6
100
1/16W
(Unused)

SCAN_PHA
SCAN_PHB
SCAN_IA0
SCAN_IA1
SCAN_IB0
SCAN_IB1

3.3V

DATA(0:7)
U3-3
74VHC27

C179
100nF
C201
100nF
C196
100nF
C193
100nF
C202
100nF
C200
100nF
C177
100nF

SAMSUNG ELECTRONICS CO., LTD.
ALL RIGHTS RESERVED

ADDR(9:8)

DGND

U21

ADDR(10)

C198
10uF
16V

OA-980

_IP_CS
_WR
U3-2
74VHC27

C

R374
33

3.3V

5V

3.3V

DGND

5VA

C

3.3V
TP457
TP460
TP458
TP459

R116
4.7K
_IP_INT
_IP_RST

R128
4.7K
DGND

C131
100nF

TP450

10uF
C116
100nF

C115
100nF

C106
100nF

U16
WM8192

DATA(0:7)
3.3V

C127
10uF
16V

C107
10uF
16V

DGND

BASEEXT

AGND

DGND

MAINEXT
R118
IPCLK

R98

1K

DGND

100
_IP_ACK0
_IP_REQ

VOUT_R
VOUT_G
VOUT_B

3.3V
C105 100nF

DGND
AGND

1TP33
1TP232
1TP231
1TP31
1TP32
1TP233
1TP237
1TP238
1TP269
1TP236
1TP234
1TP235
1TP25
1TP29
1TP30
1TP268
1TP28
1TP26
1TP27

D

R97

ADC_CLK
_ADC_VSMP

47K

ADC_SCK
ADC_SDI
ADC_SEN
C102
10nF
CCD_TG
_ADC_VSMP
ADC_CLK

C104
1000nF

CCD_RS
CCD_CLK2
CCD_CLK1
C94
100nF

D

R104
4.7K

R105
4.7K

DGND

C114
100nF

DGND

C103
100nF

E

AGND

DGND
MC74VHC32DR2

ED. DATE

ADDR(10)

1

01.08.06

2

3

_WR_L

E

SIGN

_WR
U18-3
MC74VHC32DR2
_IP_ACK

A
R
P
.

_IP_ACK0
_RD
U18-4

1

4-6

2

3

4

5

6

REF NO

C
H
E
C
K

E
N
G
.

SEC

D
W
G
.

SCX-1100
Main Board
REV 0.2

IMAGE PROCESS

6/8

Repair Manual
Samsung Electronics
- This Document can not be used without Samsung's authorization -

SCHEMATIC DIAGRAMS

Main Circuit Diagram (7/8)

1

2

3

4

5

7

6

A

A
+3.0V

5V

1nF

91K

MODEM_TX2
MODEM_TX1
C174

L4

100nF

R133

47K
R131

10uH
C157
100nF

C155
100nF

C149
100nF

C175

R132

C150
22uF
16V

MODEM_RX
KA358D-T/F
U25-2

C134
100nF

AGND

+3.0V

DGND

D4
MMSD914T1

5V

C189

1nF

R143

130K

330K

C188

100nF

TX

11.75VA

C173
100nF

U23-2
MC14053BD

+3.0V
U25-1

RX

3.3V
C183

C147
100nF

C135
1nF

R372
10K

C136
100nF

C146
100nF

C137
100nF

C138
22uF
16V

B

C133
100nF

R114
10K

KA358D-T/F

100nF
C185

R121
10K

100nF

R140

3K

AGND
C184

100nF

R139

120K

REMOTE

B

RX_CTL

C145
100nF

DGND
AGND

C144
1nF

DATA(0:7)

C186

1nF
+3.0V

DGND
R142
DGND
3.3V

300K
U24-2

U23-3
MC14053BD

C187
100nF

ADDR(0:4)

KA358D-T/F

R141
47K

R130

C171

120K

100nF

RX

Q3

TX
U19

2SC2812L6-TA
_RD
_WR
_MODEM_CS

5V
R112

10K

FM336R6719-12
TX_CTL

R113
10K

C154
1nF

+3.0V

D6
MMSD914T1

DGND

DGND

0

47K

150K

330K

R161

R163

R162

R164

330K

1M
R158

0

1M

C148
100nF

R157

R122
4.7K

R156

_MODEM_RST

C

R160

SAMSUNG ELECTRONICS CO., LTD.
ALL RIGHTS RESERVED

R109
10K

_MODEM_IRQ

C
5V

DGND

DGND

R110
100

C206
100nF

X2
28.224MHz

AGND
R159

C123
27pF

C122
27pF

4.7K

C199

100nF

TONE_OUT

VOL_0

DGND AGND

VOL_1

DGND

VOL_2

5V

D

D
5V
C213
R166

1nF

11.75VA

R165
10K

U23-1

150K

R127
24K

U24-1

C210
1nF

KA358D-T/F

11.75VA

C170
100nF

C172
100nF

U23-4
MC14053BD

BD9
CIM21J121NES

MC14053BD

11.75VA

_SPK_CTL

5V

11.75V

R129
8.2K

DGND
C156
22uF
25V

TONE_OUT

C169
100nF

KEYCLICK

C167
10uF
16V

SPK_OUT+
C214
R379

1M

C132

100nF

R167

AGND

47K

SPK_OUTC211
1uF

100nF

C168
100nF

AGND
AGND

U34
C212
1uF

+3.0V

AGND

E

AGND

MC34119DR2

TONE_CTL

AGND

D7
MMSD914T1
C166
1nF

+3.0V

DGND

ED. DATE

1

01.08.06

2

3

DGND

KEYTONE

DGND

E

SIGN

(Unused)
A
R
P
.

1

2

3

4

5

6

REF NO

C
H
E
C
K

E
N
G
.

SEC

D
W
G
.

MODEM

SCX-1100
Main Board
REV 0.2

7/8

Repair Manual
Samsung Electronics
- This Document can not be used without Samsung's authorization -

4-7

SCHEMATIC DIAGRAMS

Main Circuit Diagram (8/8)

1

2

3

4

6

5

7

A

A

5V
5V

B

5V
C195
100nF

C190
100nF

C207
100nF

B

3.3V
U26
TC74LVX4245MTCX

_STB
DGND

PD(0:7)

SAMSUNG ELECTRONICS CO., LTD.
ALL RIGHTS RESERVED

CD(0:7)

DGND
CD(0)
CD(1)
CD(2)
CD(3)
CD(4)
CD(5)
CD(6)
CD(7)

PD(0)
PD(1)
PD(2)
PD(3)
PD(4)
PD(5)
PD(6)
PD(7)

HIC1
SUPER1284

3.3V

245DIR

3.3V

C191
100nF

C192
100nF

U33

C

39

_P_ACK
P_BUSY
P_PE
P_SLCT
_P_ERROR
VOL_00
VOL_10
VOL_20

VOL_0
VOL_1
VOL_2

TC74LVX4245MTCX

_P_STB
RA8

C

DGND

RA7

_ACK
BUSY
PE
SLCT

39
_P_AUTOFD
_P_SLCTIN

_AUTOFD
_SLCTIN
_ERROR
_INIT

DGND

DGND

_P_INIT

D

D

E

ED. DATE

E

A
R
P
.

1

4-8

1

01.08.06

3

2

SIGN

2

3

4

5

6

REF NO

C
H
E
C
K

E
N
G
.

SEC

D
W
G
.

SCX-1100
Main Board
REV 0.2

PARALLEL PORT PART

8/8

Repair Manual
Samsung Electronics
- This Document can not be used without Samsung's authorization -

SCHEMATIC DIAGRAMS

4-2 OPE Circuit Diagram

1

2

3

4

5

6

7

5V

A

C4
100nF

OPE_POW
200
R18

C1
10uF
16V

R20
1.5K

GND

5V

D1
MMSD914T1

1

3

GND5

Q2
2SC2812L6-TA

2

R3
200

R21
68K
C3
1000nF

5V
5V

5V

R24
150

/OPE_RST

A

Q1
KSA1182-Y

3
C13
10uF
16V

CN2-5

R8
22K

CN2-2

2

1

+5V
CN2-4
5V

GND5
GND5

R5
22K

R6
22K

U1

R2
200

C6
100pF

R19

C11
47pF

C7
100pF
GND5

GND5

R25

180K

GND5
GND5

1K

OSC1
GND5

C12 CSACS_7.37MHz
47pF

ink

5V
contrast

LCD_RS

R9
22K

LCD_RW

CN1-5

SAMSUNG ELECTRONICS CO., LTD.
ALL RIGHTS RESERVED

LED1
SLS-NNGR202TS

B

R1
200

CN1-4

Q3
KSA1182-Y

3

C5
100nF

OPE_RXD

CN2-3

2

1

OPE_TXD

CN2-1

B

LCD_E

CN1-6

copy page

R10
22K

paper

LCD_D0

CN1-7

LCD_D1
CN1-8
CN1-9

R11
22K

setup

LCD_D3

CN1-10

scroll/volume_up

LCD_D4

CN1-11

R12
22K

black copy

LCD_D5

CN1-12

LCD_D6

CN1-13

C

zoomrete

LCD_D2

LCD_D7

CN1-14

color copy
C8
22pF

C9
C10
22pF 22pF

C

R13
22K

scroll/volume_down

5V
R7
22K

special

cancel

scan to

enter

quality

power

R14
22K

GND5 GND5 GND5
HT48R50

R22
22K

GND5

D3

MMSD914T1

D2

MMSD914T1

R23
22K

D

D
5V

5V

R16
10K

CN1-3

3

OPE_POW

R17
680
CN1-2

E

2
GND5
C2
100nF

CN1-1

E

ED. DATE

1

01.07.2

2

3

1

SIGN
GND5

GND5

A
R
P
.

1

2

3

4

5

6

REF NO

C
H
E
C
K

E
N
G
.

D
W
G
.

SCX-1100
OPE Board
REV 0 .3

SEC

MAGIC SEC OPE PART

1/1

Repair Manual
Samsung Electronics
- This Document can not be used without Samsung's authorization -

4-9

SCHEMATIC DIAGRAMS

4-3 SMPS Circuit Diagram

Magic-V3 POWER
SUPPLY(100-240Vac)

3

1

U2
2
3

+3.3V0.8A
CH1
CON1-1

C14=16V47uF

C15=1KV102
R21=1/4W22

R18=2W2.2K

C13=10V1000uF

1
2t

48t =550uH

KA78R33

CON1-2
GND

X

9
3t

R2=1/4W180K

R3=1/4W/180K

8

C7=PC630V103
B1=BEAD
Q2=FQU2N60

R20=1/4W68K

R19=1/4W/180K

ZD5=27V

C5=400V120uF

t

+

C4=222

-

T1
EE2525W D4=SR204

NT1
C3=222

10D471K

C2=104

N

C1=224

PE

R1=1W560K

H

IL1

10D561K

R-30190

BD1

2KBP06M

DSC10D9

LF1
SQH0350

F1
AC250V T 2A TNR1

10
D5=ER502

D1=1N4148

Q1

B2=BEAD

4

2
C10=1uF

Q4=C1008
ZD3=5.6V

Title

4-10

ZD4=1W36V

PC1
PC123B

R15=6.8KF

R12=1K

R14=6.8K

12t

3t

6

1

C12=50V47uF/KMG

R9=33

3

PC1=PC123B

R8=330

R7=3.3KF

C11=50V470uF/KMG

C9=103

R6=510

R13=510

7

4

CH3
CON1-3
+30V1.3A

2

D2=1N4148

R16=1.8KF

R11=180

D3=1N4148

R10=330

R5=47K
Q3=C1008-Y

R17=1W0.42(MINI)

R4=1W0.42(MINI)

ZD1=9.1V

C8=103

ZD2=4.3VB

C6=1KV331

SSP5N80A

CON1-4
GND

MAGIC POWER SUPPLY CIRCUIT DIAGRAM (Magic-V3)

Size
B

Document Number
{Doc}

Date:

Friday, July 20, 2001

Rev
01
Sheet

1

of

1

Repair Manual
Samsung Electronics
- This Document can not be used without Samsung's authorization -

Electronics

- This Service Manual is a property of Samsung Electronics Co.,Ltd.
Any unauthorized use of Manual can be punished under applicable
International and/or domestic law. -

SAMSUNG
This manual is made and
described centering around
circuit diagram
and circuit description needed
in the repair center
in the form of appendix.

Samsung Electronics Digital Printing
CS Group
Copyright (c) 2001. 10
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