LG 60PG60, 60PG60F UA Service Manual. Www.s Manuals.com. 60pg60 Chassis Pu82c Manual

User Manual: Plasma TV LG 60PG60F-UA, PU82C Chassis - Service manuals and Schematics. Free.

Open the PDF directly: View PDF .
Page Count: 30

Download
Open PDF In Browser	View PDF

Internal Use Only
CANADA : http//biz.lgservice.com
USA
: http//www.lgservice.com
: http//biz.lgservice.com

PLASMA TV
SERVICE MANUAL
CHASSIS : PU82C

MODEL : 60PG60

60PG60F-UA

CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.

INPUT

MENU

ENTER

VOL

CH

SAFETY PRECAUTIONS
IMPORTANT SAFETY NOTICE
Many electrical and mechanical parts in this chassis have special safety-related characteristics. These parts are identified by
in the
Schematic Diagram and Replacement Parts List.
It is essential that these special safety parts should be replaced with the same components as recommended in this manual to prevent
X-RADIATION, Shock, Fire, or other Hazards.
Do not modify the original design without permission of manufacturer.

Leakage Current Hot Check (See below Figure)

General Guidance
An lsolation Transformer should always be used during the
servicing of a receiver whose chassis is not isolated from the AC
power line. Use a transformer of adequate power rating as this
protects the technician from accidents resulting in personal injury
from electrical shocks.
It will also protect the receiver and it's components from being
damaged by accidental shorts of the circuitary that may be
inadvertently introduced during the service operation.
If any fuse (or Fusible Resistor) in this monitor is blown, replace it
with the same specified type.

Plug the AC cord directly into the AC outlet.
Do not use a line Isolation Transformer during this check.
Connect 1.5K/10watt resistor in parallel with a 0.15uF capacitor
between a known good earth ground (Water Pipe, Conduit, etc.)
and the exposed metallic parts.
Measure the AC voltage across the resistor using AC voltmeter
with 1000 ohms/volt or more sensitivity.
Reverse plug the AC cord into the AC outlet and repeat AC voltage
measurements for each esposed metallic part. Any voltage
measured must not exceed 0.75 volt RMS which is corresponds to
0.5mA.
In case any measurement is out of the limits sepcified, there is
possibility of shock hazard and the set must be checked and
repaired before it is returned to the customer.

When replacing a high wattage resistor (Oxide Metal Film Resistor,
over 1W), keep the resistor 10mm away from PCB.

Leakage Current Hot Check circuit

Keep wires away from high voltage or high temperature parts.

AC Volt-meter
Leakage Current Cold Check(Antenna Cold Check)
With the instrument AC plug removed from AC source, connect an
electrical jumper across the two AC plug prongs. Place the AC
switch in the on positioin, connect one lead of ohm-meter to the AC
plug prongs tied together and touch other ohm-meter lead in turn to
each exposed metallic parts such as antenna terminals, phone
jacks, etc.
If the exposed metallic part has a return path to the chassis, the
measured resistance should be between 1MΩ and 5.2MΩ.
When the exposed metal has no return path to the chassis the
reading must be infinite.
An other abnormality exists that must be corrected before the
receiver is returned to the customer.

To Instrument's
exposed
METALLIC PARTS

Good Earth Ground
such as WATER PIPE,
CONDUIT etc.
0.15uF

1.5 Kohm/10W

CANADA: LG Electronics Canada, Inc. 550 Matheson
Boulevard East Mississauga, Ontario L4Z 4G3
USA

Copyright©2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes

- 2 -

: LG Customer Interactive Center
P.O.Box 240007, 201 James Record Road Huntsville,
AL 35824
Digital TV Hotline 1-800-243-0000

LGE Internal Use Only

TABLE OF CONTENTS
SPECIFICATIONS.................................................................4
ADJUSTMENT INSTRUCTIONS ..........................................5
TROUBLE SHOOTING GUIDE ...........................................11
BLOCK DIAGRAM...............................................................16
EXPLODED VIEW...............................................................24
EXPLODED VIEW PARTS LIST .........................................25
SCHEMATIC DIAGRAM..........................................................
PRINTED CIRCUIT BOARDS .................................................

Copyright©2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes

- 3 -

LGE Internal Use Only

SPECIFICATIONS

MODELS
Dimensions
(Width x Height
x Depth)

With stand

Weight

With stand
Without stand

Without stand

Power requirement
Television System
Program Coverage
External Antenna
Impedance
Operating Temperature
Operating Humidity
Environment
condition
Storage Temperature
Storage Humidity

42PG60
(42PG60-UA)
41.1 x 28.9 x 12.1 inches
1044.4 x 735.4 x 308.0 mm
41.1 x 26.7 x 3.1 inches
1044.4 x 680.6 x 79.6 mm
61.7 pounds / 28.0 kg
55.1 pounds / 25.0 kg

50PG60
(50PG60F-UA)

60PG60
(60PG60F-UA)

48.6 x 33.4x 14.3 inches 57.2 x 38.7x 16.2 inches
1235.6 x 849.3 x 364.1 mm 1455.0 x 985.0 x 414.0 mm
48.6 x 31.2 x 3.1 inches 57.2 x 36.4 x 3.3 inches
1235.6 x 792.8 x 79.6 mm 1455.0 x 924.8 x 84.1 mm
96.1 pounds / 43.6 kg
87.5 pounds / 39.7 kg

130.5 pounds / 59.2 kg
113.9 pounds / 51.7 kg

AC100-240V ~ 50/60Hz
NTSC-M, ATSC, 64 & 256 QAM
VHF 2-13, UHF 14-69, CATV 1-135, DTV 2-69, CADTV 1-135
75 ohm
32 ~ 104°F (0 ~ 40°C)
Less than 80%
-4 ~ 140°F (-20 ~ 60°C)
Less than 85%

The specifications shown above may be changed without prior notice for quality improvement.

Copyright©2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes

- 4 -

LGE Internal Use Only

ADJUSTMENT INSTRUCTIONS
1. Application Range
This spec sheet is applied all of the PDP TV, PU82C chassis.

2. Specification
(1) Because this is not a hot chassis, it is not necessary to use
an isolation transformer. However, the use of isolation
transformer will help protect test equipment.
(2) Adjustments must be done in the correct order.
(3) The adjustments must be performed in the circumstance of
25±5°C of temperature and 65±10% of relative humidity if
there is no specific designation.
(4) The input voltage of the receiver be must kept 220V, 60Hz
when adjusting.
(5) The receiver must be operational for about 15 minutes
prior to the adjustments.
1) After receiving 100% white pattern, the receiver must be
operated prior to adjustment. (Or 8. Test Pattern
condition in EZ - Adjust)
2) Enter into White Pattern
- Press POWER ON Key on the Service Remote
Control (S R/C)
- Enter the Ez - Adjust by pressing ADJ Key on the
Service Remote Control (S R/C).
- Select 10. Test Pattern using the CH +/- Key and
select the White by pressing the direction Key.
Display the 100% Full White Pattern.

Test Pattern 2min 30sec

Test Pattern 30sec

[ Set is activated HEAT-RUN without signal generator in this
mode.

[ Set is activated HEAT-RUN without signal generator in
this mode.
If you turn on a still screen more than 20 minutes (Especially
Digital pattern(13 CH), Cross Hatch Pattern), an afterimage
may occur in the black level part of the screen.

O

HEAT RUN
Preliminary action is applied to the test for afterimage
discharge detection, and 100% FULL WHITE PATTERN
must be operated automatically.

O

Test for afterimage discharge detection
1) Pressing Power On key
- Only operating by pressing Power On key
2) Full Test Pattern(2 min 30sec) --> Full Black
Pattern(30sec) --> Full White Pattern(maintenance)
- Full White Pattern when the main power is turned on
again after being turned off
3) Pattern Mode is deselected by pressing CH +/-, Exit Key.

Copyright©2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes

- 5 -

LGE Internal Use Only

ADJUSTMENT INSTRUCTIONS
(2) Vs Adjustment

Each PCB assembly must be checked by check JIG set.
(Because power PCB Assembly damages to PDP Module,
especially be careful)

1) Connect + terminal of D.M.M to Vs pin of P12 and
connect – terminal to GND pin of P12.
2) Adjust VR901 voltage to match that of the label on the
Top/Right of the panel. (Deviation : ±0.5V)

3. PSU(Power Supply Unit) Voltage
Adjustment (Va, Vs Voltage Adjustment)
Adjust the voltages Va and Vs supplied from the PSU to the
module within the specified range of each module to supply
the stable power

3-1. Test Equipment
(1) D.M.M 1EA
(2) Voltage adjustment bar

3-2. Adjustment(60”)
Connection Diagram of Power Adjustment for Measuring
(Power Board): 50”

(1) Va Voltage Adjustment
1) Connect + terminal of D.M.M to Va pin of P812 and
connect – terminal to GND pin of P812.
2) Adjust VR901 voltage to match that of the label on the
Top/Right of the panel. (Deviation : ±0.5V)

(2) Vs

3-4. Adjustment(42”)

Voltage Adjustment

(1) Va Voltage Adjustment

1) Connect + terminal of D.M.M to Vs pin of P812 and
connect – terminal to GND pin of P812.
2) Adjust VR951 voltage to match that of the label on the
Top/Right of the panel. (Deviation : ±0.5V)

1) Connect + terminal of D.M.M to Va pin of P812 and
connect – terminal to GND pin of P812.
2) Adjust VR901 voltage to match that of the label on the
Top/Right of the panel. (Deviation : ±0.5V)

(2) Vs

Voltage Adjustment

1) Connect + terminal of D.M.M to Vs pin of P812 and
connect – terminal to GND pin of P812.
2) Adjust VR951 voltage to match that of the label on the
Top/Right of the panel. (Deviation : ±0.5V)

Connection Diagram of Power Adjustment for Measuring
(Power Board): 60”

3-3. Adjustment (50”)

Connection Diagram of Power Adjustment for Measuring
(Power Board): 42”(EAY32808901)

(1) Va Adjustment
1) Connect + terminal of D.M.M to Va pin of P12 and
connect – terminal to GND pin of P12.
2) Adjust VR951 voltage to match that of the label on the
Top/Right of the panel. (Deviation : ±0.5V)

Copyright©2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes

- 6 -

LGE Internal Use Only

ADJUSTMENT INSTRUCTIONS
(3) After receiving signal for at least 1 second, press the ADJ
Key on the Service R/C to enter the ‘Ez - Adjust’ and select
the ‘4. ADC 1080p Comp1/RGB’.
Pressing the Enter Key to adjust automatically component1.
(4) When the adjustment is over, 'ADC Component1 Success’
is displayed. If the adjustment has errors, 'ADC
Component1 1080p Fail’ is displayed.
(5) After the Component1 adjustment is over, convert the
RGB-DTV Mode and start RGB adjustment.
When the adjustment is over, 'ADC RGB 1080P Success’
is displayed.
(6) Readjust after confirming the case Pattern or adjustment
condition where the adjustment errors.
Error massage is ‘Component1 Not Connected’ or ‘Not
Valid Format’ or ‘Check Signal Status’.
(7) After adjustment is complete, exit the adjustment mode by
pressing the ADJ KEY.

4. Component 480i/1080p RGB
1080p Adjustment
Component 480i/1080p RGB 1080p adjustment to set the
black level and the Gain to optimum.

4-1. Test Equipment
(1) Service R/C
(2) 801GF(802B, 802F, 802R) or MSPG925FA Pattern
Generator (480i/1080p The Horizontal 100% Color Bar
Pattern adjust to within 0.7±0.1Vp-p)

5. EDID(The Extended Display
Identification Data)/DDC
(Display Data Channel) Download

 Adjustment Pattern: 480i/1080p 60Hz Pattern
[ Because the above pattern can differ by the model and
pattern for each device, you must check the pattern first.

It is the feature to implement the “Plug and Play” which
automatically reconfigures the user’sl environment to directly
use by exchanging information without any command directly
to the PC or the monitor by the user, which is established by
the VESA

4-2. ADC 480i Component1 Adjustment
(1) Check the connection Component1 to the Test Equipment.
(MSPG-925FA => Model: 209, Pattern: 65)

5-1. HDMI EDID Data Input

(2) Select Component1 as the input with 100% Horizontal
Color Bar Pattern(HozTV31Bar) in 480i Mode and select
‘Normal’ in screen.
(3) After receiving signal for at least 1 second, press the ADJ
Key on the Service R/C to enter the ‘Ez - Adjust’ and select
the ‘3. ADC 480i Comp1’.
Pressing the Enter Key to adjust automatically.
(4) When the adjustment is over, 'ADC Component1 Success’
is displayed.
(5) If the adjustment has errors, 'ADC Component1 480i Fail’
is displayed. And error massage(‘Component1 Not
Connected’ or ‘Not Valid Format’ or ‘Check Signal Status’)
is displayed for 1 second.

4-3. ADC 1080p Component1/RGB
Adjustment

(1) Required Test Equipment
1) PC, Jig for adjusting DDC. (PC serial to D-sub
Connection equipment)
2) S/W for writing DDC(EDID data write & read)
3) D-Sub cable
4) Jig for HDMI Cable connection

(2) Preparation for Adjustments &
Setting of Device
1) Set devices as below and turn on the PC and JIG.
2) Open S/W for writing DDC (EDID data write & read).
(operated in DOS mode)

LCD TV SET
(or Digital Board)

(1) Check the connection Component1, RGB to the Test
Equipment (MSPG-925FA => Model: 225, Pattern: 65)
(2) Select Component1 as the input with 100% Horizontal
Color Bar Pattern(HozTV31Bar) in 1080p Mode and select
‘Normal’ in screen.

Copyright©2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes

- 7 -

LGE Internal Use Only

ADJUSTMENT INSTRUCTIONS
: EDID for HDMI-3 (DDC (Display Data Channel) Data)

5-2. EDID DATA for PU82C

EDID table =

: EDID for HDMI-1 (DDC (Display Data Channel) Data)
EDID table =

: EDID DATA for RGB
EDID table =

: EDID for HDMI-2 (DDC (Display Data Channel) Data)
EDID table =

Copyright©2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes

- 8 -

LGE Internal Use Only

ADJUSTMENT INSTRUCTIONS
6. Adjustment of White Balance
6-1. Required Test Equipment
(1) Color Analyzer : CA-210 (CH 10), CA-100(CH-10), CA100+(CH-10)
=> To adjust color temperature of Plasma, CS-1000 is the
Color Analyzer and should be set to use CH 10 in which
white, red, green, and blue color are corrected. Conduct
the adjustment according to the coordinates for White
Balance adjustment in the table below.
(2) Computer for adjusting (necessary for the automatic
adjustment, possible to communicate with the RS-232C,
Baud Rate : 115200)
(3) Video Signal Generator MSPG-925F 720p, 216Gray
(Model :217, Pattern 78)

Connection Diagram for HDMI Input

6-3. White Balance Adjustment Method
Basically it uses the internal pattern but when internal pattern
is not possible, you can select HDMI input for adjustment.
Through the option at the most bottom part of the Ez Adjust
Menu 7.White Balance menu, you can select NONE, INNER
and HDMI, and the default is set to INNER. When the
adjustment cannot be done with the internal pattern, you can
select HDMI input for adjustment.

[ Requirements for Automatic Adjustment
(1) The illuminance of surroundings
10 lux or less; preventing light in surroundings as much as
possible
(2) The location of the Probe
1) For PDP: place the color analyzer (CA-100, CA-100+)
close to the surface of a module and start the
adjustment.
2) For LCD: place the color analyzer (CA-210) close to the
surface of a module within 10 cm and keep the probe of
the color analyzer at 80° to 100° angle from the surface
of a module.

6-2. Connection Diagram of Equipment
for Measuring (Automatic Adjustment)

For manual adjustment, press the ADJ KEY of the adjustment
R/C to enter Ez Adjust 7.White-Balance, and the pattern is
automatically displayed. (When you set the Option to INNER,
the default is always set to INNER)
(1) Connect the set according to the internal pattern or HDMI
input in accordance with measuring device connection
diagram.
(2) Set the Baud Rate of RS-232C to 115200. It is set to
115200 as default.
(3) Connect the RS-232C Cable to the set.
(4) Connect the HDMI Cable to the set. (Limited to the set with
HDMI option)
(5) Select and adjust the model applicable to PU82C chassis
from the adjuster.
[RS-232C command used for the automatic adjustment]
RS-232C COMMAND Meaning

(internal pattern)

Connection Diagram for Internal Pattern

[CMD

ID

DATA]

wb

00

00

White Balance Adjustment Start

wb

00

10

Gain Adjustment Start(Internal white pattern)

wb

00

1f

Gain Adjustment End

wb

00

20

Offset Adjustment Start(Internal white pattern)

wb

00

2f

Offset Adjustment End

wb

00

ff

White Balance Adjustment End
(Disappear Internal pattern)

Wb 00 00-----white balance Automatic Adjustment Start
Wb 00 10-----Gain Adjustment start (Internal pattern)
Ô Ja 00 ff------Adjustment Data
Ô
Ô

Copyright©2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes

- 9 -

LGE Internal Use Only

ADJUSTMENT INSTRUCTIONS
Jb 00 c0
...
Ô Wb 00 1f-----Gain Adjustment End
Ô *(wb 00 20(Start), wb 00 2f(End))----- When adjust Off-set
Ô Wb 00 ff------White Balance Automatic Adjustment End
(Disappear Inside pattern)

-When R Gain is Fixed at Default value(192)
Adjust G gain and B gain with decreasing Default values
from 192

[Adjustment Map]

-When G Gain is Fixed at Default value(192)
Adjust R gain and B gain with decreasing Default values
from 192

Ô
Ô

RS-232C COMMAND
[CMD ID DATA]
Cool

Mid

Warm

R Gain

Jg

Ja

Jd

G Gain

Jh

Jb

B Gain

Ji

Jc

-When B Gain is Fixed at Default value(192)
Adjust R gain and G gain with decreasing Default values
from 192

CENTER
(DEFAULT)

Min

Max
One of R/G.B Gain should be fixed at 192 and adjust two
Gain Value with decreasing the Default values from 192.

Cool

Mid

Warm

00

184

192

192

192

Je

00

187

183

159

192

Jf

00

192

161

95

192

R Cut

64

64

64

127

G Cut

64

64

64

127

B Cut

64

64

64

127

(7) Use the Vol. +, - key for adjustment.
(8) When the adjustment is completed, press the ENTER (Á
KEY) button to move to the Ez –Adjust screen. Press the
ADJ KEY to exit the adjustment mode.

6-4. Automatic Adjustment
(1) Execute POWER ON(Â) of the adjustment R/C to execute
automatic adjustment.
(2) Set the Baud Rate to 115200.
(3) Always start adjustment with “wb 00 00” and end
adjustment with “wb 00 ff”
(4) Adjust the offset if necessary

6-5. Manual Adjustment
(1) Required Test Equipment: CA-210 (CH 10), CA-100(CH10), CA-100+(CH-10)
=> To adjust color temperature of Plasma, CS-1000 is the
Color Analyzer and should be set to use CH 10 in which
white, red, green, and blue color are corrected. Conduct
the adjustment according to the coordinates for White
Balance adjustment in the table below.
(2) Enter the ‘Ez - Adjust’ by pressing the ADJ on the Service
R/C.
(3) Select 10.TEST PATTERN using the CH + / - KEY and
press the Enter KEY to execute a heat run for more than
30 minutes.
(4) Execute a Zero Calibration for CA-210 and put it at
distance of less than 10Cm from the PDP module surface
center during the adjustment.
(5) Select ‘7. White-Balance’ of ‘Ez - Adjust’ by pressing the
ADJ KEY on the Service R/C. Then enter adjustment mode
by pressing the Right KEY (G) .
(The internal pattern of full white appears by pressing G)
(6) The adjustment is conducted in three levels of color
temperature; COOL, MEDIUM, and WARM.

Copyright©2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes

- 10 -

LGE Internal Use Only

TROUBLE SHOOTING GUIDE

TV/CATV(Analog ) doesn t display
Check TU1 Pin16(Video output)
Can you see the normal signal?

Could you measure VCC voltage(3Pin) of TU1 & IIC
lines(7,8Pin)?
Are they all normal?

NO

YES

YES

You should replace TUNER.
Check the input(Pin1) of Low-Pass Filter
(IC808).
Can you see the normal waveform?

NO

After checking the C800(0.1uF Cap), you can
suspect that PCB is bad.

YES

Check the output(pin8) of Low-Pass
Filter(IC808).
Can you see the normal waveform?

NO

After checking the Power of Low-Pass Filter you
should decide to replace Low-Pass Filter or not.

NO

After checking the pattern between pin8 of IC808
and C658, you can suspect that PCB is bad..

YES

Check the Capaciter(C658) in front of
BCM3553 chip.
Can you see the normal waveform?

YES

Copyright©2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes

This board has big problem because Main
chip(BCM3550) have some troubles.
After checking thoroughly all path once again,
You should decide to replace BCM3553 or not.

- 11 -

LGE Internal Use Only

TROUBLE SHOOTING GUIDE

Video doesn t display
Check JP7004.
Can you see the normal waveform?

NO

JK701 may have problem. Replace this
Jack.

YES

Check the Registor(R732).
Can you see the normal waveform?

NO

replace Part(R732).

YES

Check the C651 in front of BCM3553 chip.
Can you see the normal waveform?

NO

After check the pattern between R703 and C651,
You can suspect that PCB is bad.

YES

Copyright©2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes

This board has big problem because Main
chip(BCM3553) have some troubles.
After checking thoroughly all path once again,
You should decide to replace BCM3553 or not.

- 12 -

LGE Internal Use Only

TROUBLE SHOOTING GUIDE

Component doesn t display
Check JP7001,J7015.
Can you see the normal waveform?

NO

JK700, JK702 may have problem. Replace this
Jack.

YES

Check the L700, L704.
Can you see the normal waveform?

NO

Replace the Part (L700, L704)

YES

Check the C638, C628 in front of BCM3553.
Can you see the normal waveform?

NO

After check the pattern between L703 and C651,
You can suspect that PCB is bad.

YES

Copyright©2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes

- 13 -

This board has big problem because Main
chip(BCM3553) have some troubles.
After checking thoroughly all path once again,
You should decide to replace BCM3553 or not.

LGE Internal Use Only

TROUBLE SHOOTING GUIDE

RGB_PC doesn t display
Check JP7032,JP7033,JP7034.
Can you see the normal waveform?

NO

JK705 may have problem. Replace this Jack.

YES

Check the C635, C636, C637 in front of
BCM3553.
Can you see the normal waveform?

NO

After check the pattern between input of
BCM3553 and JK705 ,
You can suspect that PCB is bad.

YES

Check JP7029,JP7030.
Can you see the normal waveform?

NO

JK705 may have problem. Replace this Jack.

YES

This board has big problem because Main
chip(BCM3553) have some troubles.
After checking thoroughly all path once again,
You should decide to replace BCM3553 or not.

Copyright©2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes

- 14 -

LGE Internal Use Only

TROUBLE SHOOTING GUIDE

HDMI doesn t display
Check input connect JK602.
Can you see the normal waveform?

NO

JK602 may have problem. Replace this Jack.

YES

Check DDC communication lines(IC601
Pin5,6)

NO

After checking the Power of this chip, you
should decide to replace this or not.

YES

Check HDCP communication lines(IC102
Pin5,6)

NO

After checking the Power of this chip, you
should decide to replace this or not.

YES

Check the input of PI3HDMI341ART(IC600),
& IC703(TMDS141RHAR, HDMI4)
This signal is TMDS.
Can you see the normal waveform?

NO

After checking the trace of TMDS lines and power of
PI3HDMI341ART & IC703(TMDS141RHAR, HDMI4), you
should decide to replace PI3HDMI341ART &
IC703(TMDS141RHAR, HDMI4) or not.

YES

Check the output of PI3HDMI341ART(IC600
) & IC703(TMDS141RHAR, HDMI4).
Can you see the normal waveform?

NO

After checking the Power of PI3HDMI341ART or
TMDS141RHAR. you should decide to replace
PI3HDMI341ART & TMDS141RHAR or not.

YES

Check the input and output of BCM3553.
Especially you should check
The H,V sync and clock.
Can you see the normal waveform?

Copyright©2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes

YES

- 15 -

This board has big problem because Main
chip(BCM3550) have some troubles.
After checking thoroughly all path once again,
You should decide to replace BCM3550 or not.

LGE Internal Use Only

Copyright©2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes

- 16 -

SDA
SCL

Audio L/R

COMP 1
COMP 2
AV 1
AV 2
RGB-PC

0/1/2

HDMI

RGB-PC

SIF

CS5345
(Audio
SW/ADC/OP_A
MP)

HDMI CEC
(To Micom)

To Micom

EEPROM

R/G/B

Y/Pb/Pr

Y/Pb/Pr

CVBS

Reset

74LVC14APW

X-tal(54M)

MCLK

(3x1,S/W)

Flash
(16MB)

Encoder

Video

HD/SD

USB2.0

SPDIF OUT

Buffer

I2S Audio Input

Dual
HDMI
Rx

Audio
DSP

Video
Audio

Option

Alive IC when Standby

Dead IC when Standby

IR

Local KEY

HDMI CEC

NTP3000
(Digital AMP)

MTV416
(Micom)

MCLK

(W)XGA Single Channel
FHD
Dual Channel

RS-232C

24C16

I2S

Digital out

64Bit I/F

DDR(128MB)

BCM3552(HD)/3(FHD)

Video
Front
End

VSB/QAM/NTSC/SIF

MNT out
( L/R)

I2S

PI3HDMI341ART

IF(AT)

CVBS/Y/C

Buffer

H/V Sync

Buffer

CVBS

AT/NT
Tuner

AGC CTL (From BCM)

Block Diagram - Overview

BLOCK DIAGRAM

LGE Internal Use Only

Copyright©2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes

- 17 -

Side AV CVBS

Rear S_Video Y/C

Rear AV CVBS

DDC SCL

DDC SDA

H Sync
V Sync

RGB_R

RGB_B

RGB_G

Comp2_Pr

Comp2_Pb

Comp2_Y

Comp1_Pr

Comp1_Pb

LPF 6 Mhz

LPF 6 Mhz

LPF 6 Mhz

EEPROM
FOR EDID

LPF 30Mhz

LPF 30Mhz

LPF 30Mhz

LPF 30Mhz

LPF 30Mhz

DDC SCL to Micom
for Download

DDC SDA to Micom
for Download

IF_N from TUNER for DTV

IF_P from TUNER for DTV

LPF 30Mhz

TUNER

Comp1_Y

ANT/ Cable
BCM3552/3

L2/C2

CVBS 3

L1/C1

CVBS 2

RGB H_Sync
RGB V_Sync

RGB Input

Component 2
Input

Component 1
Input

IF_N

IF_P

CVBS 1

Signal path for CVBS, Component, RGB

DVO Out[0:29]

LVDS_Tx
Out

GPIO[0:6]

RGB S/W

Rear_S-Video_ S/W
Side_CVBS_ S/W

Component_1 S/W
Component_2 S/W
Rear_CVBS_ S/W

26P(HD)
40P(FHD)
LVDS
LVDS
Con.
Con.

BLOCK DIAGRAM

LGE Internal Use Only

Copyright©2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes

- 18 -

EEPROM
For EDID

DDC SCL2

DDC SDA2

EEPROM
For EDID

TMDS2 RX1+/TMDS2 RX2+/TMDS2 RXCLK+/HDMi —CEC
+5V Power_2
Hot Plug Detect_2

HDMI 2 TMDS2 RX0+/-

DDC SCL1

DDC SDA1

Hot Plug Detect_1

TMDS1 RX1+/TMDS1 RX2+/TMDS1 RXCLK+/HDMi —CEC
+5V Power_1

HDMI 1 TMDS1 RX0+/-

DDC SCL0

EEPROM
For EDID

TMDS0 RX0+/TMDS0 RX1+/TMDS0 RX2+/TMDS0 RXCLK+/HDMi —CEC
+5V Power_0
Hot Plug Detect_0

DDC SDA0

HDMI 0

DDC SDA0

DDC SCL2

DDC SDA2

DDC SCL1

DDC SDA1

DDC SCL0

Signal path for HDMI

TMDS2
INPUT

TMDS1
INPUT

TMDS0
INPUT

DDC
OUT

TMDS
Out

Switch
Selection

TMDS341A

DDC SCL

DDC SDA

DDC
INPUT

TMDS RX0+/TMDS RX1+/TMDS_Rx
TMDS RX2+/Input0
TMDS RXCLK+/-

+5V Power_2

+5V Power_1

+5V Power_0

NCL

NDA

TMDS_Rx
Input1

LVDS_Tx
Hot Plug Detect_2 GPIO[0:8] Out

Hot Plug Detect_1

Hot Plug Detect_0

HDMi_Sel_2

HDMi_Sel_1

HDMi_Sel_0

BCM355/23

EEPROM
For EDID

DDC SDA3

DDC SCL3

HDMI 4

MTV416

Micom

HDCP SCL

HDCP SDA

EEPROM
for HDCP

Hot Plug Detect_3
+5V Power_3
HDMi —CEC
TMDS3 RXCLK+/TMDS3 RX2+/TMDS3 RX1+/TMDS3 RX0+/-

DDC SDA3

DDC SCL3

LVDS out

HDMi —CEC
Parallel connections with
HDMi 0,1,2,4

31P
31P
LVDS
Con.
Con.

BLOCK DIAGRAM

LGE Internal Use Only

Copyright©2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes

- 19 -

Comp1_Audio
Comp2_Audio

Switch
Switch

[L4 / R4] [Rout/Lout]
[L5 / R5]

[L3 / R3]

RGB_Audio

[L1 / R1]

Audio
Switch
[CS5345]

[L2 / R2]

ANA L/R IN

Buffer
Buffer

I2C SCL/SDA

(I2S_MCLK)

BCM_MCLK

I2S_CLK_IN/DATA_IN
/LR IN

HDMI_TMDS 0/1/2/3CLK

AV2_Audio

AV1_Audio

HDMI
(PC/DTV)

RESET

MNT_L/R OUT

SPDIF OUT(coaxial)

SPDIF OUT

MNT_Audio

Signal path for AUDIO/ IF

Processor

AUDIO

MPEG2
Dolby

Decoder

BTSC

SIF IN

RESET

HDMI Rx
Built in
Internal
I2S/SPDIF
Convert

I2C SCL/SDA

Buffer
Buffer

OUT1A/B

OUT2A/B

SPK L

SPK R

FRONT END

TUNER (ATSC/NTSC )

PWM MODULATOR/
POWER AMP
[NTP3000A]

SIF

CVBS

IF AGC

IF_N

IF_P

I2C SCL/SDA

BCM_MCLK

I2S_CLK_OUT
I2S_CLK_OUT/
I2S_DATA_OUT
DATA_OUT/
I2S_LR_OUT
LRCH OUT
(NTP3000A)

I2S_CLK_IN
I2S_DATA_IN
I2S_LR_IN
BCM_MCLK

HDMI_RX_DATA/CLK

[BCM3552/3]

Broadcom

AUD_SPDIF

AUD_LEFT/RIGHT P

BLOCK DIAGRAM

LGE Internal Use Only

Copyright©2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes

- 20 -

I2C_Channel 3

I2C_Channel 2

I2C_Channel 1

I2C_Channel 0

BCM3553

I2C MAP

I2C3_3.3V

I2C2_3.3V

I2C1_5V

I2C0_5V

4.7K ‰

3.3VST

1K ‰

3.3V

4.7K ‰

5.0V

4.7K ‰

5.0V

PDP MODULE

MTV416

NTP3000

CS5345

NVRAM

HDCP Key EEPROM

ATSC/NTSC Tuner

0x

0x50

0x54

0xD4

0xA6

0x??

0x94

0x74

0x9A

0xC2

Address

BLOCK DIAGRAM

LGE Internal Use Only

Copyright©2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes

IC811
KA7809

Local key/IR power

+12.0V
+12.0V

ST_5V
ST_5V

- 21 -

IC408
Comercial

Q805
SI4925BDY

Q804
SI4925BDY

NTP3000A
(Sound IC)

+16V
+16V

+5.0

+9V

IC402
RS232C Driver

IC404
3.3V_MICOM

AV1/2
Component1/2

RGB SW

IF AGC

HPD 5V

HDMI CEC

IC102
AT24C16AN
(EEPROM)

IC202
ICL3232
RS-232C RX/TX

IC803
KIA78R05F

Power Sequence and Flow Diagram

BCM
I2C Pull up

TU1
TDVF-H051F

IC809
3.3V_Reg

IC407
MTV416GMF
( micom )

+5V_TUNER

IC805
1.2V_Reg

IC

IC403
NVRAM

IC810
2.6V_Reg

IC201
USB_Power

REG

IC500
CS5345

BIAS

Inv/RL
3.3V->5V

Side power

BLOCK DIAGRAM

LGE Internal Use Only

Copyright©2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes

+16V
+16V

+12V
+12V

IC500
NTP300A

IC811
KA7809ERTM

- 22 BIAS

BIAS

+9.0V

RGB Buffer

BCM L/R OUT

IC803
KIA78R05F

Power Sequence and Flow Diagram
+5V_TU

REG

Tuner SIF

TUNER

IC

BIAS

Side power

BLOCK DIAGRAM

LGE Internal Use Only

NOTES

Copyright©2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes

- 23 -

LGE Internal Use Only

EXPLODED VIEW
305

300

120

306

307

303

304
200

121
204

207

206

205

560
310
571

301
603

209
302

602

201

570

210

208

601
202
250
203

207
205

206

A2

520

580

590

501
240

400

900

901

Copyright©2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes

- 24 -

LGE Internal Use Only

Copyright©2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes

LGE Internal Use Only

Copyright©2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes

LGE Internal Use Only

Copyright©2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes

LGE Internal Use Only

MAIN(TOP)

CONTROL(TOP)

MAIN(BOTTOM)

PRE AMP(TOP)

CONTROL(BOTTOM)
PRE AMP(BOTTOM)

Copyright©2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes

LGE Internal Use Only

Feb., 2008
Printed in Korea

P/NO : MFL42040401

CANADA: LG Electronics Canada, Inc. 550 Matheson
Boulevard East Mississauga, Ontario L4Z 4G3
USA

: LG Electronics Alabama, Inc.
P.O.Box 240007, 201 James Record Road Bldg 3
Huntsville, AL 35824

www.s-manuals.com



---

Source Exif Data:

File Type                       : PDF
File Type Extension             : pdf
MIME Type                       : application/pdf
PDF Version                     : 1.6
Linearized                      : No
XMP Toolkit                     : Adobe XMP Core 4.0-c316 44.253921, Sun Oct 01 2006 17:14:39
Producer                        : Acrobat Distiller 4.0 for Macintosh
Modify Date                     : 2013:09:16 19:32:44+03:00
Create Date                     : 2008:03:06 13:55:46Z
Creator Tool                    : QuarkXPress3.3K: LaserWriter 8 KH-8.7.1
Metadata Date                   : 2013:09:16 19:32:44+03:00
Document ID                     : uuid:86f7ff9b-7f26-4cf7-83a8-24e83858b661
Instance ID                     : uuid:9a515c7c-b94e-4003-9e18-716bb6543af5
Format                          : application/pdf
Title                           : LG 60PG60, 60PG60F-UA - Service Manual. www.s-manuals.com.
Creator                         : 
Subject                         : LG 60PG60, 60PG60F-UA - Service Manual. www.s-manuals.com.
Page Count                      : 30
Keywords                        : LG 60PG60, 60PG60F-UA - Service Manual. www.s-manuals.com.

EXIF Metadata provided by EXIF.tools