SCDV290

User Manual: SCDV290

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AD0303010C8
Cassette Deck
RS-DV290EG
Colour
(S)..........Silver Type
SPECIFICATIONS
1. Note
Refer to the service manual for Model No. SA-EH590EG, SA-EH590EP (Order No. AD0302008C8)
for information on Accessories and Packaging.
2. Location of Controls
3. Operation Checks and Component Replacement /
Procedures
- This section describes procedures for checking the operation of
the major printed circuit boards and replacing the main
components.
- For reassembly after operation checks or replacement, reverse the
respective procedures. Special reassembly procedures are
described only when required.
3.1. Checking for the main P.C.B.
- Check the main P.C.B. as shown above.
3.2. Checking for the operation P.C.B.
- Follow the (Step 1) - (Step 3) of item 3.1.
2
3
- Check the operation P.C.B. as shown below.
3.3. Replacement for the motor assy, capstan belt and winding belt
- Follow the (Step 1) - (Step 3) of item 3.1.
4
- Follow the (Step 1) - (Step 7) of item 3.2.
5
6
7
3.4. Replacement for the components parts on the mechanism P.C.B.
- Follow the (Step 1) - (Step 3) of item 3.1.
- Follow the (Step 1) - (Step 7) of item 3.2.
- Follow the (Step 1) - (Step 4) of item 3.3.
8
3.5. Replacement for the pinch roller assy and head block
- Follow the (Step 1) - (Step 3) of item 3.1.
- Follow the (Step 1) - (Step 7) of item 3.2.
- Follow the (Step 1) - (Step 5) of item 3.3.
3.6. Replacement for the cassette lid ass’y
- Follow the (Step 1) - (Step 3) of item 3.1.
9
3.7. Replacement for the cassette holder
- Follow the (Step 1) - (Step 3) of item 3.1.
- Follow the (Step 1) - (Step 11) of item 3.2.
10
4. To Supply Power Source
This unit is designed to operate on power supplied from system connected. / When a component
requires service, use the system connections to supply power source. / For system connections,
refer to Fig.4-1.
Fig. 4-1.
5. Service Mode Function of Cassette Mechanism
This unit is equipped with a service mode function of cassette mechanism, so that if the unit
operates incorrectly, the fault displayed using an error code on the FL display of the Tuner/
Amplifier (SA-EH590). The system control IC and FLdisplay are part of the Tuner/Amplifier so
make sure the system has been connected properly before using this function. Use this function
during maintenance to check faults of items below.
5.1. Cassette tape to be prepared
Metal tape:
Recorded music tape with only one erasure prevention tab intact. /
(use middle portion of tape)
Normal tape: / CrO2 tape:
Recorded music tape with both erasure prevention tabs intact. /
(use middle portion of tape)
11
5.2. Selecting service mode
1. Turn on the power to the unit.
2. Make sure that no tape is inserted in the cassette deck. (Service
mode cannot be selected with a tape inserted in the cassette deck.)
3. Press the DOLBY NR button for about 2 seconds, and keep
pressing it, also press the STOP button for about 2 seconds. Refer
to Fig. 5-1.
Fig. 5-1.
5.3. Deck 1 mechanism check
1. Press the Deck 1/deck 2 select button to change the flashing Deck
2 indicator to Deck 1. Refer to Fig. 5-2. / (No change required if
Deck 1 indicator already flashing.)
2. Press the Deck 1 cassette holder open button to open the Deck 1
cassette holder. Refer to Fig. 5-2.
3. Insert a CrO2 tape into the Deck 1 and close the cassette holder.
4. Press the Fast forward button. Refer to Fig. 5-2. / (Tape fast
forwards for about 2 seconds then stops.)
5. Press the PLAY button. Refer to Fig. 5-2. / (After TPS operation
and check, the tape stops.)
6. Open the Deck 1 cassette holder and replace the tape with a
normal tape.
7. Close the Deck 1 cassette holder.
8. Press the Record pause button. Refer to Fig. 5-2. / (No record
operation.)
9. Press the STOP button. Refer to Fig. 5-2. A mechanism error code
is displayed. Refer to Table 5-1. Each time the STOP button is
12
pressed, the fault items are displayed in sequence.
Fig. 5-2.
Table 5-1.
FL display Symptom Cause
H01 Cassette deck does not operate correctly. Faulty cassette deck mechanism
mode
switch (Deck 1: S951, Deck 2: S971),
plunger
and capstan motor. / (Check and
replace)
H02 Unit does not record or the unit goes into
recording mode even when the erasure
prevention tabs have been removed from the
cassette.
Faulty erasure prevention tabs detect
(S974, S975) or short-circuit. (Check
and
replace)
H03 Tape does not play even when the tape deck
play button is pressed.
The motor operates when the tape deck play
button is pressed even if cassette is loaded in
the deck.
Faulty tape detect switch (Deck 1:
S952
S972) or short-circuit. (Check and
replace)
H06 Cassette deck does not detect CrO2 tape. Faulty CrO2 tape detect switch (Deck
1
Deck 2: S973). / (Check and replace)
H07 Cassette deck does not detect Metal tape. Faulty Metal tape detect switch (
S976).
and replace)
F01 When the tape play button is pressed, tape
advances only slightly and then stops.
Reel pulse error (Faulty Hall IC). (
Check
replace)
F02 TPS (tape program search) does not work. Faulty TPS signal detection or faulty
plunger
control. / (Check and replace
mechanism
control IC)
5.4. Deck 2 mechanism check
1. Press the Deck 1/deck 2 select button to change the flashing Deck
1 indicator to Deck 2. Refer to Fig. 5-3.
2. Press the Deck 2 cassette holder open button to open the Deck 2
13
cassette holder. Refer to Fig. 5-3.
3. Insert a metal tape into the Deck 2 with an intact erasure
prevention tab on the right side.
4. Close the Deck 2 cassette holder.
5. Press the Fast forward button. Refer to Fig. 5-3. / (Tape fast
forwards for about 2 seconds then stops.)
6. Open the Deck 2 cassette holder and turn over the metal tape.
(intact erasure prevention tab on the left side.)
7. Close the Deck 2 cassette holder.
8. Press the Rewind button. Refer to Fig. 5-3. / (Tape rewinds for
about 2 seconds then stops.)
9. Open the Deck 2 cassette holder and replace the metal tape with a
CrO2 tape.
10. Close the Deck 2 cassette holder.
11. Press the PLAY button. Refer to Fig. 5-3. / (After TPS operation
and check, the tape stops.)
12. Open the Deck 2 cassette holder and replace the CrO2 tape with a
normal tape.
13. Close the Deck 2 cassette holder.
14. Press the Record pause button. Refer to Fig. 5-3. / (No record
operation.)
15. Press the STOP button. Refer to Fig. 5-3. A mechanism error
code is displayed. Refer to Table 5-1. Each time the STOP button is
pressed, the fault items are displayed in sequence.
Fig. 5-3.
14
5.5. Exiting service mode
1. Press the STOP button for more than 5 seconds. (Diagnostic
contents stored in memory for both Deck 1 and 2 are erased.)
2. Remove the cassette tape from the cassette holder.
3. Turn off the unit.
6. Schematic Diagram Notes
- This schematic diagram may be modified at any time with the
development of new technology.
Notes:
S900:
Stop switch ( )
S901:
Deck 2 cassette holder open switch ( OPEN)
S903:
Tape edit switch (TAPE EDIT)
S904:
Record pause switch / ( REC PAUSE)
S905:
Dolby noise reduction switch / (DOLBY NR)
S906:
15
Fast forward, TPS switch ( )
S907:
Forward side playback switch ( )
S909:
Reverse side playback switch ( )
S910:
Rewind, TPS switch ( )
S911:
Reverse mode switch / (REV MODE)
S912:
Deck 1/deck 2 select switch / (DECK 1/2)
S913:
Counter display switch / (COUNTER DISPLAY)
S914:
Counter reset switch / (COUNTER RESET)
S915:
Deck 1 cassette holder open switch ( OPEN)
S951:
Deck 1 mode detect switch
S952:
Deck 1 half detect switch
S953:
Deck 1 CrO2 tape detect switch
S971:
Deck 2 mode detect switch
S972:
Deck 2 half detect switch
S973:
Deck 2 CrO2 tape detect switch
16
S974:
Deck 2 reverse side record prevention tab detect switch
S975:
Deck 2 forward side record prevention tab detect switch
S976:
Deck 2 METAL tape detect switch
VR101:
Deck 1 playback gain adjustment VR / (R ch)
VR102:
Deck 2 playback gain adjustment VR / (L ch)
VR103:
Deck 2 playback gain adjustment VR / (R ch)
VR104:
Deck 1 playback gain adjustment VR / (L ch)
VR801:
Deck 1 tape speed adjustment VR (normal)
VR803:
Deck 2 tape speed adjustment VR (normal)
- Indicated voltage values are the standard values for the unit
measured by the DC electronic circuit tester (high-impedance) with
the chassis taken as standard. Therefore, there may exist some
errors in the voltage values, depending on theinternal impedance
of the DC circuit tester.
No mark
: Playback
( )
: Recording
- Important safety notice:
Components identified by mark have special characteristics
important for safety.
Furthermore, special parts which have purposes of fire-retardant
(resistors), high-quality sound (capacitors), low-noise (resistors),
etc. are used.
17
When replacing any of components, be sure to use only
manufacturers specified parts shown in the parts list.
- The supply part number is described alone in the replacement parts
list.
- Caution!
IC and LSI are sensitive to static electricity.
Secondary trouble can be prevented by taking care during repair.
Cover the parts boxes made of plastics with aluminum foil.
Ground the soldering iron.
Put a conductive mat on the work table.
Do not touch the legs of IC or LSI with the fingers directly.
- Voltage and signal line
: Positive voltage line
: Playback signal line
: Recording signal line
7. Schematic Diagram
8. Printed Circuit Board Diagram
9. Type Illustration of ICs, Transistors and Diodes
10. Wiring Connection Diagram
11. Block Diagram
12. Terminal Function of ICs
12.1. IC701 (M38503M2406F): / System Control
18
Pin
No.
Terminal
Name
I/O Function
1VCC IPower supply terminal
2VREF I Reference voltage input
3AVSS -GND terminal
4LMT O Muting control signal output
5PL1 O Deck 1 solenoid control signal
output
6M1 O Deck 1 motor drive control
signal output
7HALT I Power failure detect signal input
8REQ I Serial communication request
signal input
9CS I Serial communication complete
signal input
10 CLK O Serial communication clock
signal output
11 DATA
OUT
OSerial communication data
signal output
12 DATA IN I Serial communication data
signal input
13 METAL 2 I Deck 2 tape detect switch signal
(METAL) input
14 CRO2 2 IDeck 2 tape detect switch signal
(CrO2) input
15 VSS -GND terminal
16 FWD LED O LED drive control signal (FWD)
output
17 REV LED O LED drive control signal (REV)
output
18 RESET I Reset signal input
19 XIN I Oscillator connected terminal (F
=8 MHz)
20 XOUT O
21 VSS -GND terminal
22 CRO2 1 IDeck 1 tape detect switch signal
(CrO2) input
23 MODE I Deck 1 mechanism switch
signal (MODE) input
24 HALF1 I Deck 1 mechanism switch
signal (Half) input
25 TPS I TPS signal input
26 A DATA O Serial data signal output for IC
101
27 A CLK O Serial clock signal output for IC
101
28 A LATCH OSerial latch signal output for IC
101
19
101
Pin
No.
Terminal
Name
I/O Function
29 PL2 O Deck 2 solenoid control signal
output
30 M2 O Deck 2 motor drive control
signal output
31 ENC/DEC O Dolby NR record/playback mode
select signal output
32 DOLBY
ON/OFF
ODolby NR ON/OFF control signal
output
33 E CS - EEPROM chip select signal
output
(Not used, open)
34
|
36
NC
-
Not used, open
37 LED CNT O LED color control signal output
38 PHOTO2T IDeck 2 reel pulse detect signal
input
39 AD SW I Deck 2 mechanism switch
signal input
(Half, Mode, F REC INH., R REC
INH.)
40 PHOTO1T IDeck 1 reel pulse detect signal
input
41 KEY2 I Operation key signal input
42 KEY1 I Operation key signal input
13. Measurements and Adjustments
Note:
This unit RS-DV290 is designed to operate on power supplied from
system connected.
13.1. Measurement condition
- Dolby NR switch is OFF
- Make sure heads are clean
- Make sure capstan and pressure roller are clean
- Temperature is 20 ± 5 °C
13.2. Measurement instrument and special tool
- Electronic Voltmeter
- Frequency Counter
20
- AF Oscillator
- Test tape
- Head azimuth adjustment (8 kHz, -20 dB): QZZCFM
- Tape speed adjustment (3 kHz, -10 dB): QZZCWAT
- Playback gain adjustment (315 Hz, 0 dB): QZZCFM
- Recording/playback frequency response check:
QZZCFM / (315 Hz, -20 dB, 12.5 kHz~63 Hz, -20 dB)
QZZCRA4 (Normal blank tape)
QZZCRX2 (CrO2 blank tape)
QZZCRZ6 (Metal blank tape)
13.3. Head azimuth adjustment (Deck 1/2)
1. Connect the measuring instrument as shown in Fig. 13-1.
2. Replace azimuth screws for both forward and reverse directions
after removing the screw-locking bond left on the head base.
(Supply part No. of azimuth screw: RHD17015 )
3. Playback the azimuth adjustment portion (8 kHz, -20 dB) of test
tape (QZZCFM). Adjust the azimuth screw until the outputs of the L/
R ch are maximized. Refer to Fig. 13-2. Make sure that
thedifference in the peak level between the left and right channels
does not exceed 0.5 dB.
4. Perform the same adjustment in reverse playback mode.
Check of the level difference forward and reverse directions.
5. Playback the playback gain adjustment portion (315 Hz, 0 dB) of
test tape (QZZCFM). Check if level difference between forward and
reverse direction is within 1.5 dB.
6. After the adjustment, apply screw lock to the azimuth screw.
Fig. 13-1.
Fig. 13-2.
21
13.4. Tape speed adjustment / (Deck 1/2)
Note:
When connecting the unit to other system components for test,
short the section between the test point TP604 and TP609 and turn
on the entire system. (The unit is set to the TEST mode, and either
Deck 1 or Deck 2 indicatorwill blink.)
Normal speed (Standard value: 3000 ± 45 Hz)
1. Connect the measuring instrument as shown in Fig. 13-3.
2. Playback the middle portion of test tape. (QZZCWAT)
3. Adjust VR801 (Deck 1) and VR803 (Deck 2) for output value shown
below. (For adjustment point, refer to Fig. 13-11. )
Adjustment target: 3000 ± 15 Hz (Normal speed)
Standard value: 3000 ± 45 Hz (Normal speed)
Fig. 13-3.
Note:
When the unit is finished for adjusting, disconnect the short section
between TP604 and TP609 .
13.5. Playback gain adjustment (Deck 1/2)
1. Connect the measuring instrument as shown in Fig. 13-4.
2. Find the start of the 315 Hz, 0 dB section of test tape (QZZCFM),
insert the tape into Deck 1 and 2, and play it back (FWD).
3. Adjust Deck 2: VR102 (L ch) [VR103 (R ch)] and Deck 1: VR104 (L
ch) [VR101 (R ch)] so that the output is within the standard value
shown below. (For adjustment point, refer to Fig. 13-11. )
22
[Standard value:265 mV ~ 300 mV]
Fig. 13-4.
13.6. Erase current confirmation (Deck 2)
1. Connect the measuring instrument as shown in Fig. 13-5.
2. Insert the blank tape into Deck 2, and press the Record pause
button.
3. Check if the output at this time between the erase current
confirmation point TP301 and TP302 (the output on both edged of
R313) is within the standard value shown below. (For the erase
current confirmation point, referto Fig. 13-11. )
Standard Value EVM reading
Normal tape
:
85 ± 25 mA (85 ± 25 mV)
CrO2 tape: 150 ± 25 mA (150 ± 25
mV)
Metal tape: 185 ± 25 mA (185 ± 25
mV)
Fig. 13-5.
Note:
The test tape is not required when confirming the erase current.
13.7. Playback frequency response check (Deck 1/2)
1. Connect the measuring instrument as shown in Fig. 13-6.
2. Playback the 315 Hz, -20 dB and 12.5 kHz to 63 Hz, -20 dB sections
of test tape (QZZCFM) and then, using the 315 Hz, -20 dB playback
23
output as a reference (0 dB).
3. Confirm the playback frequency response is within the range
shown in Fig. 13-7.
Fig. 13-6.
Fig. 13-7.
13.8. Recording/playback / frequency response and gain check
(Deck 2)
13.8.1. Normal tape check
1. Connect the measuring instrument as shown in Fig. 13-8.
2. Insert a Normal type blank tape (QZZCRA4) into Deck 2.
3. Record signals at 50 Hz, 100 Hz, 200 Hz, 500 Hz, 1 kHz, 2 kHz, 10
kHz and 12.5 kHz (28 mV).
4. Set the playback frequency of recorded signals at 1 kHz as a
reference response (0 dB).
5. Playback the recorded signal to confirm that the output is within
the range of the overall frequency response shown in Fig. 13-9.
Fig. 13-8.
Fig. 13-9.
24
13.8.2. CrO2/Metal tape check
1. Connect the measuring instrument as shown in Fig. 13-8.
2. Insert a CrO2/Metal tape into Deck 2.
3. Record signals at 50 Hz, 100 Hz, 200 Hz, 500 Hz, 1 kHz, 2 kHz, 10
kHz and 12.5 kHz (28 mV).
4. Set the playback frequency of recorded signals at 1 kHz as a
reference response (0 dB).
5. Playback the recorded signal to confirm that the output is within
the range of the overall frequency response shown in Fig. 13-10.
Fig. 13-10.
13.9. Adjustment point and test point
25
Fig. 13-11.
14. Checking Procedure for Self-operation of
Cassette Mechanism Ass’y
- This procedure describes simple methods independent of
mechanism controller or governor circuit.
14.1. Operation Check Providing with Cassette Tape
1. Push up the EJECT lever with rubber band. (Refer to Fig. 14-2. )
2. Apply DC 5V to the MOTOR. (MOTOR will be rotated) (Refer to Fig.
14-1. )
3. Provide the cassette tape with mechanism assy.
4. Apply DC 9V to the plunger, and then operate it by switching
power ON/OFF. (Power: +PL, -PL) (Refer to Fig. 14-1. )
A. FWD PLAY: Supply power to the plunger momentary. (Duration:
approx. 50msec.)
B. FWD FF: At FWD PLAY mode, supply power to the plunger
momentary. (Duration: approx. 50msec.)
C. STOP: At FWD FF mode, supply power to the plunger
momentary. (Duration: approx. 50msec.)
D. REV PLAY: At STOP mode, supply power to the plunger for
ordinary duration. (Duration: approx. 200msec.)
E. REV REW: At REV PLAY mode, supply power to the plunger
momentary. (Duration: approx. 50msec.)
F. STOP: At REV REW mode, supply power to the plunger
momentary. (Duration: approx. 50msec.)
26
Repeat the above operation to FWD PLAY mode.
Note: Incorrect duration for power supply may be operated to other mode.
14.1.1. Connection Diagram Between the Mechanism Assy and Power Supply /
(MOTOR and Plunger)
Fig. 14-1.
14.1.2. Detail View of EJECT Lever / (EJECT lever fixed by rubber band, Plunger
rib operation)
Fig. 14-2.
14.2. Operation Check Not Provided with Cassette Tape
1. Push up the EJECT lever with rubber band. (Refer to Fig. 14-2. )
2. Apply DC 5V to the MOTOR. (MOTOR will be rotated)
3. Lift up the plunger rib of mechanism assy with the tip of minus
screwdriver, and then operate it same as power supply duration.
(Refer toFig. 14-3. )
Note: Operation order is same as the Operation Check Providing with
Cassette Tape item 4. above.
Fig. 14-3.
27
15. Replacement Parts List
Notes:
- Important safety notice:
Components identified by mark have special characteristics
important for safety.
Furthermore, special parts which have purposes of fire-retardant
(resistors), high-quality sound (capacitors), low-noise (resistors),
etc. are used.
When replacing any of components, be sure to use only
manufactures specified parts shown in the parts list.
- The marking [RTL] indicates the retention time is limited for this
Item. After the discontinuation of this assembly in production, it
will no longer available.
- All parts are supplied by SPC.
28
Ref. No. Part No. Part Name & Description Pcs Remarks
1RKM0392-S1 CABINET 1
2RHD30007-1S SCREW 4
3 XTBS3+10JFZ1 SCREW 2
4RGR0287A-P REAR PANEL 1
5RKA0105-K RUBBER 4
6RKA0106-N FOOT RING 4
7RMN0539 CABLE HOLDER 1
8RDG0129-1 DAMPER GEAR 2
9REX0966-1 WIRE ASS'Y 1
10 RGB0025-A TECHNICS BADGE 1
11 RGK1131-2S ORNAMENT(L) 1
12 RGK1132-2S ORNAMENT(R) 1
13 RGL0441-Q PANEL LIGHT 1
14 REZ1194 WIRE ASS'Y 1
15 RKF0462-K2 CASSETTE HOLDER(L) 1
16 RKF0463-K2 CASSETTE HOLDER(R) 1
17 RKF0587G-2S CASSETTE LID(L) 1
18 RKF0588-2S CASSETTE LID(R) 1
19 RKW0577-Q CASSETTE WINDOW(L) 1
20 RKW0578-Q CASSETTE WINDOW(R) 1
21 RMB0474 SPRING 2
22 RMQ0577A-3 FRAME 1
23 RUS757ZA SPRING 4
24 RYP1179-S FRONT PANEL 1
25 XTBS26+10J SCREW 7
26 XTB3+10JFZ SCREW 5
27 XTBS3+8JFZ1 SCREW 3
28 RMG0161 RUBBER 1
29
Ref. No. Part No. Part Name & Description Pcs Remarks
29 RMR0909-X PCB HOLDER 1
101 RED0037 HEAD BLOCK ASS'Y / (R/P) 1 L1AA00000008
101-1 RHD17015 SCREW 2
102 RED0038 HEAD BLOCK ASS'Y / (P.B) 1
102-1 RHD17015 SCREW 2
103 RDG0300 REEL TABLE BASE 4
104 RDG0301 GEAR 2
105 RDK0026 GEAR 2
107 RDV0033-4 BELT1 2
108 RDV0034-1 BELT2 2
110 RUW147ZA SPRING 2
111 RMB0400 SPRING 4
112 RMB0403 SPRING 2
113 RMB0404 SPRING 2
114 RMB0406 SPRING 2
115 RMB0408 SPRING 2
116 RML0370-J LEVER 2
117 RML0371 LEVER 2
118 RML0372 LEVER 2
119 RML0374 LEVER 2
120 RMM0131 ROD 2
121 RMM0133-1 ROD 2
122 RMQ0519 REEL CAP 4
123 RMS0398-1 SHAFT 2
124 RSJ0003 PLUNGER ASS'Y 2
125 RUS609ZC SPRING 2
126 RXF0049 FLY WHEEL ASS'Y 2
127 RXF0050 FLY WHEEL ASS'Y 2
128 RXG0040 GEAR 4
129 RMK0283A-J SUB CHASSIS 2
130 RXL0124 PINCH ROLLER ASS'Y 2
130-1 RMB0401 SPRING 2
131 RXL0125 PINCH ROLLER ASS'Y 2
131-1 RMB0402 SPRING 2
132 RXL0126 ARM GEAR 2
133 RXQ0412 CHASSIS ASS'Y 2
133-1 RMB0405 SPRING 2
133-2 RMM0132-J FR ROD 2
134 REM0055-1 MOTOR ASS'Y 2
135 RHD26022 SCREW 4
136 XTW2+5L SCREW 4
137 XTW26+10S SCREW 6
138 XYC2+JF17 SCREW 2
140 RFKJSCH770EK MAIN CHASSIS ASS'Y 1
C101-04 ECUV1H681KBN 50V 680P 4 F1J1H681A021
C109,10 ECQB1H183JF3 50V 0.018U 2
C111,12 ECEA0JKS470 6.3V 47U 2
C113,14 ECEA1HKS2R2 50V 2.2U 2
C115,16 ECJ2VB1H471K 50V 470P 2
C117,18 ECUX1H331KBX 50V 330P 2
C119,20 ECA1HAK010XI 50V 1U 2
C123,24 ECEA1EKS4R7 25V 4.7U 2
C125,26 ECJ2VB1H332K 50V 3300P 2
30
Ref. No. Part No. Part Name & Description Pcs Remarks
C129 ECEA1AKS220 10V 22U 1
C130 F2A1C101A133 16V 100U 1
C131-34 ECJ2VB1H471K 50V 470P 4
C135,36 ECA1HAK010XI 50V 1U 2
C137 ECEA1HKS0R1 50V 0.1U 1
C138 F1J1E4730004 25V 0.047U 1
C139 ECEA0JKS470 6.3V 47U 1
C140 ECEA1CKS100 16V 10U 1
C141 ECA1HAK010XI 50V 1U 1
C142 ECUVNE104ZFN 25V 0.1U 1 F1J1E1040017
C143,44 ECJ2VB1H471K 50V 470P 2
C150 RCE1AKA101BG 10V 100U 1 F2A1A1010020
C203,04 ECEA1EKS4R7 25V 4.7U 2
C205,06 ECA1HAK010XI 50V 1U 2
C207,08 ECUV1H271KBN 50V 270P 2
C211,12 ECUV1H152KBN 50V 1500P 2 ECJ2VB1H152K
C213,14 ECEA1EKS4R7 25V 4.7U 2
C215,16 ECEA1CKS100 16V 10U 2
C217,18 ECEA1HKS0R1 50V 0.1U 2
C219 F2A1C101A133 16V 100U 1
C220 RCE1ARS471BJ 10V 470U 1 F2A1A471A111
C221,22 ECEA1HKAR68B 50V 0.68U 2
C223 ECEA1EKS4R7 25V 4.7U 1
C225,26 ECEA1EKS4R7 25V 4.7U 2
C239,40 ECUV1H681KBN 50V 680P 2 F1J1H681A021
C241 ECJ2VB1H103K 50V 0.01U 1
C301 ECA1CAM471XB 16V 470U 1
C302 ECEA2AN2R2S 100V 2.2U 1
C303 ECQP2E682JZT 250V 6800P 1 F0A2E682A002
C304 F2A1C101A133 16V 100U 1
C305 ECEA1HKS0R1 50V 0.1U 1
C306 ECQB1H393JF3 50V 0.039U 1
C307 ECUV1H102KBN 50V 1000P 1 ECJ2VB1H102K
C308 ECJ2VB1H332K 50V 3300P 1
C309 ECEA0JKS470 6.3V 47U 1
C310,11 ECJ2VB1H103K 50V 0.01U 2
C323 ECUV1H102KBN 50V 1000P 1 ECJ2VB1H102K
C602 ECA1CAM221XB 16V 220U 1
C603 RCE1CKA470BG 16V 47U 1 F2A1C470A017
C604 ECUV1E103ZFN 25V 0.01U 1 F1J1E103A007
C605 ECA1CAM221XB 16V 220U 1
C701 ECJ2VB1H103K 50V 0.01U 1
C702 ECEA0JKS101 6.3V 100U 1
C705 ECUV1E103ZFN 25V 0.01U 1 F1J1E103A007
C706 RCE1HKA3R3BG 50V 3.3U 1 F2A1H3R3A015
C707 ECUV1E103ZFN 25V 0.01U 1 F1J1E103A007
CN601 RJS2A5520-1 CONNECTOR(20P) 1 K1MP20A00005
CN901 RJS8T6ZA CONNECTOR(8P) 1 K1MP08B00006
CP101,02 RJS1A6805 CONNECTOR(5P) 2
CP901,02 RJT071K09A CONNECTOR(9P) 2 K1KA09B00058
CS951 RJU071H09M CONNECTOR(9P) 1 K1KB09C00001
31
Ref. No. Part No. Part Name & Description Pcs Remarks
CS971 RJU071H09M CONNECTOR(9P) 1 K1KB09C00001
D101,02 MA2J11100L DIODE 2
D301 MA2J11100L DIODE 1
D606 MAZ40560MF DIODE 1
D651,52 MA165TA5 DIODE 2 MA2C16500E
D701 MA2J11100L DIODE 1
D705,06 MA2J11100L DIODE 2
D707 MA4051M DIODE 1 MAZ40510M
D708-10 MA2J11100L DIODE 3
D904 MA2J11100L DIODE 1
D905 B3AHA0000012 LED 1
D907 B3AHA0000012 LED 1
D951 MA165TA5 DIODE 1 MA2C165
D971 MA165TA5 DIODE 1 MA2C165
IC101 CXA1998BQT6 IC 1 C1BB00000319
IC102 MC14066BFEL IC 1 C0JBAR000248
IC103 BA7755AF IC 1 C1AB00001381
IC201 CXA1552M-T4 IC 1 C1BB00000311
IC202 MC14066BFEL IC 1 C0JBAR000248
IC701 M38503M2406F IC 1 C2BBDD000003
IC951 0N2180RLC1 IC 1
IC971 0N2180RLC1 IC 1
L201,02 ELELN103KA COIL 2
L301 RL08B006-K COIL 1 G2A142C00002
L302 RLQZB101KT-D COIL 1 G0C101K00017
L701 G0C100JA0019 COIL 1
L702 J0JBC0000041 COIL 1
PCB1 REP2827E-M MAIN P.C.B. 1 [RTL]
PCB2 REPX0108A MECHA.SW.P.C.B. / (P.B.) 1 [RTL]
PCB3 REPX0108B MECHA.SW.P.C.B. / (R/P) 1 [RTL]
Q101,02 2SJ164RTA TRANSISTOR 2 2SJ01640RA
Q103,04 2SJ164QTA TRANSISTOR 2 2SJ01640QA
Q105,06 2SD1819ARTX TRANSISTOR 2 2SD1819ARL
Q107 DTA143EUT106 TRANSISTOR 1 B1GDCFGG0008
Q108 DTC143EUT106 TRANSISTOR 1 B1GBCFGG0006
Q201,02 DTA143EUT106 TRANSISTOR 2 B1GDCFGG0008
Q301 2SD1819ARTX TRANSISTOR 1 2SD1819ARL
Q302 2SD1328STW TRANSISTOR 1 2SD13280S2RA
Q303,04 2SD14500HA TRANSISTOR 2
Q305,06 DTC144EUT106 TRANSISTOR 2 B1GBCFNN0013
Q602 2SD2144S TRANSISTOR 1 B1AAGC000006
Q604 2SC3940AQSTA TRANSISTOR 1 2SC3940ARA
Q701-03 2SD1819ARTX TRANSISTOR 3 2SD1819ARL
Q706 DTC114EUT106 TRANSISTOR 1 B1GBCFJJ0009
Q803,04 2SD592AR TRANSISTOR 2 2SD0592AR
Q805,06 DTA143EUT106 TRANSISTOR 2 B1GDCFGG0008
Q807,08 2SB0621AHA TRANSISTOR 2
Q809,10 DTC143EUT106 TRANSISTOR 2 B1GBCFGG0006
Q901 DTA143EUT106 TRANSISTOR 1 B1GDCFGG0008
32
Ref. No. Part No. Part Name & Description Pcs Remarks
Q902-04 DTC143EUT106 TRANSISTOR 3 B1GBCFGG0006
R101,02 ERJ6GEYJ562V 1/10W 5.6K 2
R103,04 ERJ6GEYJ104V 1/10W 100K 2
R105,06 ERJ6GEYJ334V 1/10W 330K 2
R107,08 ERJ6GEYJ103V 1/10W 10K 2
R109,10 ERJ6GEYJ102V 1/10W 1K 2
R111 ERJ6GEYJ820V 1/10W 82 1 D0GD820JA012
R112 ERJ8GEYJ820V 1/8W 82 1
R113 ERJ6GEYJ123V 1/10W 12K 1
R114 ERJ6GEYJ273V 1/10W 27K 1
R117 ERJ6GEYJ102V 1/10W 1K 1
R118,19 ERDS2FJ220 1/4W 22 2
R120 ERJ6GEYJ104V 1/10W 100K 1
R121,22 ERJ6GEYJ103V 1/10W 10K 2
R125 ERJ6GEYJ104V 1/10W 100K 1
R126 ERJ6GEYJ223V 1/10W 22K 1
R127 ERJ6GEYJ472V 1/10W 4.7K 1
R130 ERJ6GEYJ475V 1/10W 4.7M 1
R131 ERJ6GEYJ334V 1/10W 330K 1
R132 ERJ6GEYJ273V 1/10W 27K 1
R133 ERJ6GEYJ333V 1/10W 33K 1
R134 ERJ6GEYJ392V 1/10W 3.9K 1
R135 ERJ6GEYJ682V 1/10W 6.8K 1
R136,37 ERJ6GEYJ222V 1/10W 2.2K 2
R138 ERJ6GEYJ472V 1/10W 4.7K 1
R139,40 ERJ6GEYF473 1/10W 47K 2
R141 ERJ8GEYJ101V 1/8W 100 1
R142 ERJ6GEYJ101V 1/10W 100 1
R143 ERDS2FJ101 1/4W 100 1
R144 ERJ6GEYJ101V 1/10W 100 1
R147-50 ERJ6GEYJ562V 1/10W 5.6K 4
R151,52 ERJ6GEYJ104V 1/10W 100K 2
R153,54 ERJ6GEYJ272V 1/10W 2.7K 2
R157,58 ERJ6GEYJ223V 1/10W 22K 2
R207,08 ERJ6GEYF473 1/10W 47K 2
R209,10 ERJ6GEYJ102V 1/10W 1K 2
R211,12 ERJ6GEYJ103V 1/10W 10K 2
R213,14 ERJ6GEYJ302V 1/10W 3K 2
R215,16 ERJ6GEYJ123V 1/10W 12K 2
R217,18 ERJ6GEYJ222V 1/10W 2.2K 2
R219 ERJ6GEYJ183V 1/10W 18K 1
R220 ERDS2FJ220 1/4W 22 1
R221,22 ERJ6GEYJ101V 1/10W 100 2
R223,24 ERJ6GEYJ103V 1/10W 10K 2
R225,26 ERJ6GEYF473 1/10W 47K 2
R230,31 ERJ6GEYJ102V 1/10W 1K 2
R232 ERJ6GEYJ103V 1/10W 10K 1
R233,34 ERJ6GEYJ101V 1/10W 100 2
R237 ERDS2FJ220 1/4W 22 1
R301 ERJ6GEYJ103V 1/10W 10K 1
R302 ERJ6GEYJ182V 1/10W 1.8K 1
R303 ERJ6GEYJ222V 1/10W 2.2K 1
R304 ERJ6GEYJ153V 1/10W 15K 1
33
Ref. No. Part No. Part Name & Description Pcs Remarks
R305 ERJ6GEYJ183V 1/10W 18K 1
R306 ERJ6GEYJ333V 1/10W 33K 1
R307 ERDS1FJ2R2 1/2W 2.2 1
R308 ERJ6GEYJ102V 1/10W 1K 1
R309-11 ERJ6GEYJ472V 1/10W 4.7K 3
R313 ERDS2TJ1R0 1/4W 1.0 1
R602 ERQ16NKWR33E 1/6W 0.33 1
R603 ERD2FCG100 1/4W 10 1
R604 ERJ6GEYJ331V 1/10W 330 1
R606 ERJ6GEYJ152V 1/10W 1.5K 1
R609 ERDS2FJ101 1/4W 100 1
R630 ERQ16NKWR33E 1/6W 0.33 1
R632 ERDS2FJ473 1/4W 47K 1
R701,02 ERJ6GEYJ103V 1/10W 10K 2
R703 ERJ6GEYJ562V 1/10W 5.6K 1
R704 ERJ6GEYJ472V 1/10W 4.7K 1
R705 ERJ6GEYF473 1/10W 47K 1
R708 ERJ6GEYJ472V 1/10W 4.7K 1
R710 ERJ6GEYJ102V 1/10W 1K 1
R711 ERJ6GEYJ104V 1/10W 100K 1
R712 ERJ8GEYJ683V 1/8W 68K 1
R718 ERJ8GEYJ683V 1/8W 68K 1
R721 ERJ6GEYJ472V 1/10W 4.7K 1
R722 ERJ6GEYJ101V 1/10W 100 1
R723,24 ERJ6GEYJ102V 1/10W 1K 2
R725,26 ERJ6GEYJ222V 1/10W 2.2K 2
R727 ERJ6GEYJ472V 1/10W 4.7K 1
R728 ERJ6GEYJ103V 1/10W 10K 1
R729 ERJ6GEYJ472V 1/10W 4.7K 1
R730 ERJ6GEYJ222V 1/10W 2.2K 1
R732 ERJ6GEYJ104V 1/10W 100K 1
R735 ERJ6GEYJ472V 1/10W 4.7K 1
R736 ERJ6GEYJ103V 1/10W 10K 1
R737 ERJ8GEYJ103V 1/8W 10K 1
R738 ERJ6GEYJ102V 1/10W 1K 1
R741 ERJ6GEYJ223V 1/10W 22K 1
R743 ERJ6GEYF473 1/10W 47K 1
R744 ERJ6GEYJ102V 1/10W 1K 1
R745 ERJ6GEYJ101V 1/10W 100 1
R747 ERJ8GEYJ102V 1/8W 1K 1
R802 ERJ6GEYJ561V 1/10W 560 1
R803 ERJ6GEYJ103V 1/10W 10K 1
R805 ERJ6GEYJ392V 1/10W 3.9K 1
R806 ERJ6GEYJ103V 1/10W 10K 1
R808 ERJ6GEYJ392V 1/10W 3.9K 1
R810,11 ERJ6GEYJ103V 1/10W 10K 2
R812 ERJ6GEYJ561V 1/10W 560 1
R813,14 ERJ6GEYJ471V 1/10W 470 2
R818 ERDS2FJ2R2 1/4W 2.2 1
R820 ERDS2FJ2R2 1/4W 2.2 1
R823,24 ERJ6GEYJ561V 1/10W 560 2
R900 ERJ6GEYJ821V 1/10W 820 1
R901 ERJ6GEYJ102V 1/10W 1K 1
R902 ERJ6GEYJ122V 1/10W 1.2K 1 D0GD122JA003
34
Ref. No. Part No. Part Name & Description Pcs Remarks
R903 ERJ6GEYJ152V 1/10W 1.5K 1
R904 ERJ6GEYJ182V 1/10W 1.8K 1
R905 ERJ6GEYJ222V 1/10W 2.2K 1
R906 ERJ6GEYJ332V 1/10W 3.3K 1 D0GD332JA003
R908 ERJ6GEYJ122V 1/10W 1.2K 1 D0GD122JA003
R909 ERJ6GEYJ152V 1/10W 1.5K 1
R910 ERJ6GEYJ182V 1/10W 1.8K 1
R911 ERJ6GEYJ222V 1/10W 2.2K 1
R914 ERJ6GEYJ331V 1/10W 330 1
R915 ERJ6GEYJ681V 1/10W 680 1
R916 ERJ6GEYJ331V 1/10W 330 1
R917 ERJ6GEYJ681V 1/10W 680 1
R924 ERJ6GEYJ821V 1/10W 820 1
R925 ERJ6GEYJ102V 1/10W 1K 1
R952 ERDS2FJ821 1/4W 820 1
R953 ERDS2FJ393 1/4W 39K 1
R972 ERDS2FJ821 1/4W 820 1
R973 ERDS2FJ393 1/4W 39K 1
RJ504 ERJ6GEY0R00V CHIP JUMPER 1
RJ507-09 ERJ8GEY0R00V CHIP JUMPER 3 D0YFR0000002
S900,01 EVQ11G05R SW,PUSH 2
S903-07 EVQ11G05R SW,PUSH 5
S909-15 EVQ11G05R SW,PUSH 7
S951 RSH1A018-3U SW,MECHA DET 1
S952,53 RSH1A019-2U SW,MECHA DET 2
S971 RSH1A018-3U SW,MECHA DET 1
S972-76 RSH1A019-2U SW,MECHA DET 5
VR101-04 EVNDCAA03B24 V.R.,PLAYBACK GAIN / ADJ. 4
VR801 EVNDCAA03B53 V.R.,TAPE SPEED / ADJ. 1
VR803 EVNDCAA03B53 V.R.,TAPE SPEED / ADJ. 1
X701 RSXY8M00D01T OSCILLATOR 1 H2B800400005
Z971 EXBF7L355SYV COMPONENT / COMBINATION 1
16. Cabinet Parts Location
35
17. Mechanism Parts Location
36
37
18. Schematic Diagram for printing with letter size
F0302KH
38
A
B
C
D
E
F
G
H
25 26 27 28 29 30 31 32 33 34 35 36
FW901
OPERATION CIRCUIT
E
1
2
3
4
5
6
7
8
D907
SML79455C
()
Q901
DTA143EUT106
LED DRIVE
D905
SML79455C
()
Q902
DTC143EUT106
LED DRIVE
S907
()
S906
()
S905
(DOLBY NR)
S904
(REC PAUSE)
S903
(TAPE EDIT)
S901
(OPEN)
S900
()
S915
(OPEN)
S909
()
S910
()
S912
(DECK 1/2)
S911
(REV MODE)
S914
(COUNTER
RESET)
S913
(COUNTER
DISPLAY)
R911
2.2K
R910
1.8K
R909
1.5K
R908
1.2K
R925
1K
R924
820
R905
2.2K
R904
1.8K
R903
1.5K
R902
1.2K
R901
1K R906
3.3K
R900
820
R915
680
R914
330
R916
330
Q904
DTC143EUT106
LED DRIVE(REV)
Q903
DTC143EUT106
LED DRIVE(FWD)
R917
680
D904
MA111TX
IC202
MC14066BFEL
SIGNAL CONT.
8 9 10 11 12 13
7654321
14
MAIN CIRCUIT
A
A
B
C
D
E
F
G
Q108
DTC143EUT106
SWITCHING
R126
22K
R234
100 C216
16V10
C215
16V10
R233
100
R226
47K
R208
47K
R225
47K
R207
47K
RS-DV290(EG) OPERATION, MAIN CIRCUIT DIAGRAM
:POSITIVE VOLTAGE LINE
5V
5V
0V
5V
0V
0V
STOP : 0V
5V
4.2V
0V
0V
0V
2.6V
0V
4.7V 8.3V
(0V) 9.6V4.7V 4.7V 4.7V
8.3V
(0V)
8.3V (0V)
(5V) 0V
9.6V
:PLAYBACK SIGNAL LINE
121110987654321
A
B
C
D
E
F
G
H
3
6
4
MAIN CIRCUIT
A
B
A
C
B
A
CP101
1
2
3
4
5
CP102
1
2
3
4
5
IC103
BA7755AF
R/P SELECT
1 2 4
678
3
5
Q301
2SD1819ARTX
BIAS OSC CONT.
Q306
DTC144EUT106
BIAS OSC CONT.
Q305
DTC144EUT106
BIAS OSC CONT.
Q302
2SD1328STXRA
SWITCHING
(REC:ON) Q303,304
2SD1450RSTA
BIAS OSC
Q303
Q304
Q102
2SJ164RTA
HEAD SELECT
(REC:ON)
Q106
Q103,104
2SJ164QTA
HEAD SELECT
(PLAY:ON)
Q104
Q103
Q105,106
2SD1819ARTX
MUTING
Q105
Q101
2SJ164RTA
HEAD SELECT
(REC:ON)
S
G
D
S
G
D
D
G
S
D
G
S
L301
IC101
CXA1998BQT6
R/P EQ AMP
1
25
Lch
Rch
PLAYBACK
HEAD
DECK1
Lch
ERASE
HEAD
DECK2
Rch
R/P HEAD
R106
330K
C102
680P
C101
680P
R105
330K
C143
470P C115
470P
R101
5.6K
R103
100K
C150
10V100
C123
25V4.7
R119
22
R118
22
C130
16V100
C119
50V1
C140
16V10
C131
470P
C129
10V22 R117
1K
C117
330P
R111
82 R113
12K
C111
6.3V47
R109
1K
C109
0.018
R141
100
R142
100
R144
100
C144
470P
C104
680P
C110
0.018
C112
6.3V47
R112
82
R114
27K
R110
1K
C114
50V2.2
C113
50V2.2
R102
5.6K
R104
100K
C116
470P
C125
3300P
C126
3300P
C118
330P
R154
2.7K
C120
50V1
R133 33K
R130 4.7M
C139 6.3V47
R132
27K
C301
16V470
C303
6800P C302
100V2.2
N
R313
1
TP302TP301
R302
1.8K
R301
10K D301
MA111TX
C305
50V0.1
C304
16V100
R303
2.2K
R304
15K
R305
18K
R306
33K
R138
4.7K
R137
2.2K
C309
6.3V47
R308
1K
C311
0.01
C310
0.01 C308
3300P
R307
2.2
C323
1000P
C307
1000P
R309
4.7K
R310
4.7K
R311
4.7K
L302
100 H
R134
3.9K
R135
6.8K
D102
MA111TX
D101
MA111TX
R158 22K
R127
4.7K
R125
100K
C138
0.047
C137
50V0.1
C135 50V1
C136 50V1
R120
100K
C132
470P
R153
2.7K
R157
22K
C103
680P
R143
100
R107
10K
R131
330K
R108
10K
LATCHES
SHIFT
REGISTERS
PBEQ
CTL
AGC
AMSRECEQ
20K 20K
10K
MUTE
40K
AGC
GAIN
210K
210K
210K 210K
IREF
40K
AGC
GAIN
10K
RECEQ
RFS
12345678910 11 12
13
23
2437
38
39
40
41
42
43
44
45
46
47
48 20K 20K
252627282930313233343536
REQEQ
CTL
22
21
20
19
18
17
16
15
14
C306
0.039
R136
2.2K
C124
25V4.7
DOLBY
Rch
F
D
E
CNRMO
B
A
IC201
CXA1552M-T4
DOLBY B NR
1 2 3 4 5 8
912131415
ATT2
ATT2
ATT3
ATT3
ATT1
ATT1
SC DET
SC DET
6 7
101116
ON/OFF
R/P
BA
J
I
A
B
A
B
IC102
MC14066BFEL
DECK 1/2 SELECT
1234567
891011121314
Q107
DTA143EUT106
R/P SELECT
Q202
DTA143EUT106
R/P SELECT
Q201
DTA143EUT106
DOLBY ON/OFF
R209
1K
R725
2.2K
R730
2.2K
R726
2.2K
C134
470P
C133
470P
C142
0.1
C203
25V4.7 R211
10K
C207
270P
L201
R218
2.2K
R217
2.2K
C211
1500P
C220
10V470
C219
16V100
C241
0.01
R237
22 R220
22
C239
680P
C205
50V1
R221
100
R230
1K
R223
10K
C223
25V4.7
C221
50V0.68 R213
3K
R215
12K
C213
25V4.7
C225
25V4.7
C217
50V0.1
R222
100
R219
18K
C206
50V1
C240
680P
C212
1500P
R212
10K
R210
1K
C204
25V4.7
C208
270P
L202
C214
25V4.7
R216
12K
C226
25V4.7
R224
10K
R231
1K
R151
100K
R140
47K
R152
100K
R139
47K
C141
50V1
R148
5.6K VR102
20K(B)
R150
5.6K VR104
20K(B)
R214
3K
C222
50V0.68
R149
5.6K VR103
20K(B)
R147
5.6K VR101
20K(B)
C218
50V0.1
DOLBY
Lch
C
R122
10K
R121
10K
RS-DV290(EG) MAIN CIRCUIT DIAGRAM
9.6V
:POSITIVE VOLTAGE LINE : PLAYBACK SIGNAL LINE: RECORDING SIGNAL LINE
9.6V
0V0V
(0.2V)
9V
0V0V
0V0V
(8.9V)
0V
(0.7V)
0V
0V
0V
0V
(0.7V)
0V
(8.9V)
(0.2V)
9V
0V0V
6V
9.6V 0V 0V
(9.5V)
0V
(0.7V)
0V
0V
(0.6V)
0V 0V
(0.6V)
0V
(0.7V)
0V
(0.8V)
0V
(0.6V)
0V
9.5V
9.5V (0.6V)
0V
0V
(0.1V)
(0.1V)
0V
ERASE CURRENT
CHECK POINT
5V 0V 4.5V 4.5V 4.5V 4.5V 4.5V 8.6V 5V0V
(1.6V) 0V
(0.2V)
5V
5V
(9.6V)
0.1V
(0.1V)
9.6V
(0.2V)
9.6V
(0.2V)
5V
(5V)
0.2V
4.5V9V9V 4.5V 4.5V 4.5V 4.5V 0V5V 0V
1.2V
2.6V
2.6V
1.3V
0V
0V
0V
0V
1.3V
2.6V
2.6V
1.2V
5V
5V
9.6V
9.6V
(0.2V)
9.6V
0V
(9.5V)
4.8V 9.6V 4.7V 4.7V 4.6V 4.7V 0.4V 4.8V
4.8V 4.7V 1.2V 4.7V 0.4V 4.8V4.6V
(0V)
0V
5V
5V5V
(0V)
5V (5V)
0V
PLAYBACK
GAIN ADJ.
(DECK1/Lch)
PLAYBACK
GAIN ADJ.
(DECK2/Lch)
PLAYBACK
GAIN ADJ.
(DECK1/Rch)
PLAYBACK
GAIN ADJ.
(DECK2/Rch)
9.6V 9.6V
(0.1V) 0V0V0V 0V9.6V
(0.1V)
0V0V0V 0V (9.6V)
0.1V (9.6V)
0.1V
DOLBY
ON : 0V
121110987654321
A
B
C
D
E
F
G
H
3
6
4
MAIN CIRCUIT
A
B
A
C
B
A
CP101
1
2
3
4
5
CP102
1
2
3
4
5
IC103
BA7755AF
R/P SELECT
1 2 4
678
3
5
Q301
2SD1819ARTX
BIAS OSC CONT.
Q306
DTC144EUT106
BIAS OSC CONT.
Q305
DTC144EUT106
BIAS OSC CONT.
Q302
2SD1328STXRA
SWITCHING
(REC:ON) Q303,304
2SD1450RSTA
BIAS OSC
Q303
Q304
Q102
2SJ164RTA
HEAD SELECT
(REC:ON)
Q106
Q103,104
2SJ164QTA
HEAD SELECT
(PLAY:ON)
Q104
Q103
Q105,106
2SD1819ARTX
MUTING
Q105
Q101
2SJ164RTA
HEAD SELECT
(REC:ON)
S
G
D
S
G
D
D
G
S
D
G
S
L301
IC101
CXA1998BQT6
R/P EQ AMP
1
25
Lch
Rch
PLAYBACK
HEAD
DECK1
Lch
ERASE
HEAD
DECK2
Rch
R/P HEAD
R106
330K
C102
680P
C101
680P
R105
330K
C143
470P C115
470P
R101
5.6K
R103
100K
C150
10V100
C123
25V4.7
R119
22
R118
22
C130
16V100
C119
50V1
C140
16V10
C131
470P
C129
10V22 R117
1K
C117
330P
R111
82 R113
12K
C111
6.3V47
R109
1K
C109
0.018
R141
100
R142
100
R144
100
C144
470P
C104
680P
C110
0.018
C112
6.3V47
R112
82
R114
27K
R110
1K
C114
50V2.2
C113
50V2.2
R102
5.6K
R104
100K
C116
470P
C125
3300P
C126
3300P
C118
330P
R154
2.7K
C120
50V1
R133 33K
R130 4.7M
C139 6.3V47
R132
27K
C301
16V470
C303
6800P C302
100V2.2
N
R313
1
TP302TP301
R302
1.8K
R301
10K D301
MA111TX
C305
50V0.1
C304
16V100
R303
2.2K
R304
15K
R305
18K
R306
33K
R138
4.7K
R137
2.2K
C309
6.3V47
R308
1K
C311
0.01
C310
0.01 C308
3300P
R307
2.2
C323
1000P
C307
1000P
R309
4.7K
R310
4.7K
R311
4.7K
L302
100 H
R134
3.9K
R135
6.8K
D102
MA111TX
D101
MA111TX
R158 22K
R127
4.7K
R125
100K
C138
0.047
C137
50V0.1
C135 50V1
C136 50V1
R120
100K
C132
470P
R153
2.7K
R157
22K
C103
680P
R143
100
R107
10K
R131
330K
R108
10K
LATCHES
SHIFT
REGISTERS
PBEQ
CTL
AGC
AMSRECEQ
20K 20K
10K
MUTE
40K
AGC
GAIN
210K
210K
210K 210K
IREF
40K
AGC
GAIN
10K
RECEQ
RFS
12345678910 11 12
13
23
2437
38
39
40
41
42
43
44
45
46
47
48 20K 20K
252627282930313233343536
REQEQ
CTL
22
21
20
19
18
17
16
15
14
C306
0.039
R136
2.2K
C124
25V4.7
DOLBY
Rch
F
D
E
CNRMO
B
A
IC201
CXA1552M-T4
DOLBY B NR
1 2 3 4 5 8
912131415
ATT2
ATT2
ATT3
ATT3
ATT1
ATT1
SC DET
SC DET
6 7
101116
ON/OFF
R/P
BA
J
I
A
B
A
B
IC102
MC14066BFEL
DECK 1/2 SELECT
1234567
891011121314
Q107
DTA143EUT106
R/P SELECT
Q202
DTA143EUT106
R/P SELECT
Q201
DTA143EUT106
DOLBY ON/OFF
R209
1K
R725
2.2K
R730
2.2K
R726
2.2K
C134
470P
C133
470P
C142
0.1
C203
25V4.7 R211
10K
C207
270P
L201
R218
2.2K
R217
2.2K
C211
1500P
C220
10V470
C219
16V100
C241
0.01
R237
22 R220
22
C239
680P
C205
50V1
R221
100
R230
1K
R223
10K
C223
25V4.7
C221
50V0.68 R213
3K
R215
12K
C213
25V4.7
C225
25V4.7
C217
50V0.1
R222
100
R219
18K
C206
50V1
C240
680P
C212
1500P
R212
10K
R210
1K
C204
25V4.7
C208
270P
L202
C214
25V4.7
R216
12K
C226
25V4.7
R224
10K
R231
1K
R151
100K
R140
47K
R152
100K
R139
47K
C141
50V1
R148
5.6K VR102
20K(B)
R150
5.6K VR104
20K(B)
R214
3K
C222
50V0.68
R149
5.6K VR103
20K(B)
R147
5.6K VR101
20K(B)
C218
50V0.1
DOLBY
Lch
C
R122
10K
R121
10K
RS-DV290(EG) MAIN CIRCUIT DIAGRAM
9.6V
:POSITIVE VOLTAGE LINE : PLAYBACK SIGNAL LINE: RECORDING SIGNAL LINE
9.6V
0V0V
(0.2V)
9V
0V0V
0V0V
(8.9V)
0V
(0.7V)
0V
0V
0V
0V
(0.7V)
0V
(8.9V)
(0.2V)
9V
0V0V
6V
9.6V 0V 0V
(9.5V)
0V
(0.7V)
0V
0V
(0.6V)
0V 0V
(0.6V)
0V
(0.7V)
0V
(0.8V)
0V
(0.6V)
0V
9.5V
9.5V (0.6V)
0V
0V
(0.1V)
(0.1V)
0V
ERASE CURRENT
CHECK POINT
5V 0V 4.5V 4.5V 4.5V 4.5V 4.5V 8.6V 5V0V
(1.6V) 0V
(0.2V)
5V
5V
(9.6V)
0.1V
(0.1V)
9.6V
(0.2V)
9.6V
(0.2V)
5V
(5V)
0.2V
4.5V9V9V 4.5V 4.5V 4.5V 4.5V 0V5V 0V
1.2V
2.6V
2.6V
1.3V
0V
0V
0V
0V
1.3V
2.6V
2.6V
1.2V
5V
5V
9.6V
9.6V
(0.2V)
9.6V
0V
(9.5V)
4.8V 9.6V 4.7V 4.7V 4.6V 4.7V 0.4V 4.8V
4.8V 4.7V 1.2V 4.7V 0.4V 4.8V4.6V
(0V)
0V
5V
5V5V
(0V)
5V (5V)
0V
PLAYBACK
GAIN ADJ.
(DECK1/Lch)
PLAYBACK
GAIN ADJ.
(DECK2/Lch)
PLAYBACK
GAIN ADJ.
(DECK1/Rch)
PLAYBACK
GAIN ADJ.
(DECK2/Rch)
9.6V 9.6V
(0.1V) 0V0V0V 0V9.6V
(0.1V)
0V0V0V 0V (9.6V)
0.1V (9.6V)
0.1V
DOLBY
ON : 0V
13 14 15 16 17 18 19 20 21 22 23 24
MAIN CIRCUIT
A
MECHANISM CIRCUIT (DECK1)
B
MECHANISM CIRCUIT (DECK2)
C
CP901
CS951
CP902CS971
Q806
DTA143EUT106
MOTOR DRIVE
Q804
2SD592ARSTA
MOTOR DRIVE
CP305
1
2
3
4
Z971
1234567
4.7K
50K
25K
4.7K
4.7K
4.7K
50K
50K
50K
50K
25K 25K
A
B
D
C
IC971
0N2180RLC1
PHOTO
INTERRUPTER
C
A
B
Q803
2SD592ARSTA
MOTOR DRIVE
Q805
DTA143EUT106
MOTOR DRIVE
CP306
1
2
3
4
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
Q807
2SB621ARSTA
SOLENOID DRIVE
Q809
DTC143EUT106
SOLENOID DRIVE
Q810
DTC143EUT106
SOLENOID DRIVE
Q808
2SB621ARSTA
SOLENOID DRIVE
DL
CAPSTAN
MOTOR
(DECK1)
A
B
M
CAPSTAN
MOTOR
(DECK2)
A
B
M
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
R806
10K
R802
560 R823
560 R824
560 R812
560
R811
10K
R814
470
R818
2.2
R805
3.9K R803
10K
R810
10K R808
3.9K
VR803
5K(B)
VR801
5K(B)
R820
2.2
R813
470
B
A
C
R952
820
D951
MA165TA
SOLENOID
S951
(MODE)
S953
(CrO2)
S952
(HALF)
S973
(CrO2)
S976
(METAL)
S972
(HALF)
S971
(MODE)
S974
(R.REC.INH.)
S975
(F.REC.INH.)
R972
820
D971
MA165TA
SOLENOID
D
IC951
0N2180RLC1
PHOTO
INTERRUPTER
R953
39K
12
34
AGHB
Q
S
P
F
R973
39K
1 2
3 4
TP609
CN601
CN901
IC701
M38503M2406F
SYSTEM CONTROL
E
C
A
B
D
J
I
H
G
F
PQR
JEDG
AC E
E
D
A
C
B
I
H
F
Q701
Q703
Q702
2SD1819ARTX
INTERFACE
13
2
X701
(8MHz)
CBAFIOJKLMNGH
Q604
2SC3940AQSTA
REGULATOR R603
10
TP604
+10V
(D.GND)
R602
0.33
R630
0.33
Q602
2SD2144STA
POWER SUPPLY
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
20
17
18
19
SYNC
CS
+B (10V)
D.GND
SCLK
DATA
DECK REQ
NC
TAPE Lch IN
A.GND
TAPE Rch IN
TAPE Lch OUT
TAPE Rch OUT
RS A.GND
EARTH
TERMINAL
CIRCUIT
D
W601 E1
1
2
3
4
5
6
7
8
Q701,703
2SD1819ARTX
INTERFACE
Q706
DTC114EUT106
RESET
C707
0.01
D706
MA111TX
D710
MA111TX
BD
R745
100
R710 1K
R724 1K
R723 1K
D707
MA4051MTA
L702
R738
1K R747
1K
R704
4.7K
R744
1K
R727
4.7K
R708
4.7K
R729
4.7K
R741
22K
D708
MA111TX
R743
47K
R705
47K
D709
MA111TX
R728
10K
R722
100
R703
5.6K
R732 100K
R721 4.7K
R735 4.7K
R632
47K
R609
100
D651
MA165TA
D652
MA165TA
R604
330
C602
16V220
C605
16V220
C603
16V47
D606
MA4056MTA C604
0.01
R606
1.5K
R712 68K
R718 68K
R701 10K
R702 10K
C705
0.01
C701
0.01
R711
100K
C702
6.3V100
C706
50V3.3
D705
MA111TX
R737 10K
R736 10K
D701
MA111TX
NC
NC
NC
NC
NC
NC
To DVD CHANGER(SL-DV290)
CD CHANGER (SL-EH790)
CD PLAYER(SL-EH590) &
SOUND PROCESSOR
(SH-DV290,SH-EH790,590)
CT.GND
Rch
OUT Lch
OUT Rch
IN Lch
IN
A.GND
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21
313233343536373839404142 222324252627282930
KEY1 VCC
VREF
AVSS
LMT
PL1
M1
HALT
REQ
CS
CLK
VSS
VSS
XOUT
XIN
RESET
REV LED
FWD LED
CRO2 2
METAL 2
DATA IN
DATA OUT
CRO2 1
MODE
HALF1
TPS
A LATCH
PL2
M2
ENC/DEC
DOLBY ON/OFF
ECS
NC
KEY2
NC
NC
A CLK
A DATA
LED CNT
AD SW
PHOTO1 T
PHOTO2 T
F
EDABC
R232
10K
F
G
S
L701
10 H
RS-DV290(EG) MAIN,MECHANISM(DECK1,2), EARTH TERMINAL CIRCUIT DIAGRAM
E
K
:POSITIVE VOLTAGE LINE
5V
10.3V
5V
10.3V
5V
10.3V
5V
5V
10.3V
0V
10.3V
0V
0V
10.2V 0V 10.2V
0V
10.3V
0V
10.3V
0V
0V
9.8V 5V0V
5V
TAPE SPEED
ADJ.(DECK1)
0V
5V
5V
0V 0V
0.8V
TAPE SPEED
ADJ.(DECK2)
: PLAYBACK SIGNAL LINE: RECORDING SIGNAL LINE
5V
1.9V
0.1V
0V
1.8V
0V
0V
0.6V
0.2V
0V
5V
0V
0V
9.4V5V
5.7V
10.3V9.6V
10.3V
10.3V
5V
9.6V
5V
0V
5V
2.9V
5V
5V
5V
5V
5V
2.7V
0V
0V
0V
0V
0V
(5V) 0V
0V
5V
STOP : 0V
5V
5V
0V
5V
1.4V
2.2V
2.5V
0V
0V
0V
0V
0V
0.5V
1.6V
1V
5V
5V
2V
2.3V
1.2V
P-P
F=8MHz
2.4V
P-P
F=8MHz
4.8V
0V
T16ms.
3.6V
0V
T16ms.
3V
0V
T16ms.
0V
4.8V
T16ms.
5ms. 2V/DIV. 0V
4.8V
0V (5V)
13 14 15 16 17 18 19 20 21 22 23 24
MAIN CIRCUIT
A
MECHANISM CIRCUIT (DECK1)
B
MECHANISM CIRCUIT (DECK2)
C
CP901
CS951
CP902CS971
Q806
DTA143EUT106
MOTOR DRIVE
Q804
2SD592ARSTA
MOTOR DRIVE
CP305
1
2
3
4
Z971
1234567
4.7K
50K
25K
4.7K
4.7K
4.7K
50K
50K
50K
50K
25K 25K
A
B
D
C
IC971
0N2180RLC1
PHOTO
INTERRUPTER
C
A
B
Q803
2SD592ARSTA
MOTOR DRIVE
Q805
DTA143EUT106
MOTOR DRIVE
CP306
1
2
3
4
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
Q807
2SB621ARSTA
SOLENOID DRIVE
Q809
DTC143EUT106
SOLENOID DRIVE
Q810
DTC143EUT106
SOLENOID DRIVE
Q808
2SB621ARSTA
SOLENOID DRIVE
DL
CAPSTAN
MOTOR
(DECK1)
A
B
M
CAPSTAN
MOTOR
(DECK2)
A
B
M
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
R806
10K
R802
560 R823
560 R824
560 R812
560
R811
10K
R814
470
R818
2.2
R805
3.9K R803
10K
R810
10K R808
3.9K
VR803
5K(B)
VR801
5K(B)
R820
2.2
R813
470
B
A
C
R952
820
D951
MA165TA
SOLENOID
S951
(MODE)
S953
(CrO2)
S952
(HALF)
S973
(CrO2)
S976
(METAL)
S972
(HALF)
S971
(MODE)
S974
(R.REC.INH.)
S975
(F.REC.INH.)
R972
820
D971
MA165TA
SOLENOID
D
IC951
0N2180RLC1
PHOTO
INTERRUPTER
R953
39K
12
34
AGHB
Q
S
P
F
R973
39K
1 2
3 4
TP609
CN601
CN901
IC701
M38503M2406F
SYSTEM CONTROL
E
C
A
B
D
J
I
H
G
F
PQR
JEDG
AC E
E
D
A
C
B
I
H
F
Q701
Q703
Q702
2SD1819ARTX
INTERFACE
13
2
X701
(8MHz)
CBAFIOJKLMNGH
Q604
2SC3940AQSTA
REGULATOR R603
10
TP604
+10V
(D.GND)
R602
0.33
R630
0.33
Q602
2SD2144STA
POWER SUPPLY
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
20
17
18
19
SYNC
CS
+B (10V)
D.GND
SCLK
DATA
DECK REQ
NC
TAPE Lch IN
A.GND
TAPE Rch IN
TAPE Lch OUT
TAPE Rch OUT
RS A.GND
EARTH
TERMINAL
CIRCUIT
D
W601 E1
1
2
3
4
5
6
7
8
Q701,703
2SD1819ARTX
INTERFACE
Q706
DTC114EUT106
RESET
C707
0.01
D706
MA111TX
D710
MA111TX
BD
R745
100
R710 1K
R724 1K
R723 1K
D707
MA4051MTA
L702
R738
1K R747
1K
R704
4.7K
R744
1K
R727
4.7K
R708
4.7K
R729
4.7K
R741
22K
D708
MA111TX
R743
47K
R705
47K
D709
MA111TX
R728
10K
R722
100
R703
5.6K
R732 100K
R721 4.7K
R735 4.7K
R632
47K
R609
100
D651
MA165TA
D652
MA165TA
R604
330
C602
16V220
C605
16V220
C603
16V47
D606
MA4056MTA C604
0.01
R606
1.5K
R712 68K
R718 68K
R701 10K
R702 10K
C705
0.01
C701
0.01
R711
100K
C702
6.3V100
C706
50V3.3
D705
MA111TX
R737 10K
R736 10K
D701
MA111TX
NC
NC
NC
NC
NC
NC
To DVD CHANGER(SL-DV290)
CD CHANGER (SL-EH790)
CD PLAYER(SL-EH590) &
SOUND PROCESSOR
(SH-DV290,SH-EH790,590)
CT.GND
Rch
OUT Lch
OUT Rch
IN Lch
IN
A.GND
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21
313233343536373839404142 222324252627282930
KEY1 VCC
VREF
AVSS
LMT
PL1
M1
HALT
REQ
CS
CLK
VSS
VSS
XOUT
XIN
RESET
REV LED
FWD LED
CRO2 2
METAL 2
DATA IN
DATA OUT
CRO2 1
MODE
HALF1
TPS
A LATCH
PL2
M2
ENC/DEC
DOLBY ON/OFF
ECS
NC
KEY2
NC
NC
A CLK
A DATA
LED CNT
AD SW
PHOTO1 T
PHOTO2 T
F
EDABC
R232
10K
F
G
S
L701
10 H
RS-DV290(EG) MAIN,MECHANISM(DECK1,2), EARTH TERMINAL CIRCUIT DIAGRAM
E
K
:POSITIVE VOLTAGE LINE
5V
10.3V
5V
10.3V
5V
10.3V
5V
5V
10.3V
0V
10.3V
0V
0V
10.2V 0V 10.2V
0V
10.3V
0V
10.3V
0V
0V
9.8V 5V0V
5V
TAPE SPEED
ADJ.(DECK1)
0V
5V
5V
0V 0V
0.8V
TAPE SPEED
ADJ.(DECK2)
: PLAYBACK SIGNAL LINE: RECORDING SIGNAL LINE
5V
1.9V
0.1V
0V
1.8V
0V
0V
0.6V
0.2V
0V
5V
0V
0V
9.4V5V
5.7V
10.3V9.6V
10.3V
10.3V
5V
9.6V
5V
0V
5V
2.9V
5V
5V
5V
5V
5V
2.7V
0V
0V
0V
0V
0V
(5V) 0V
0V
5V
STOP : 0V
5V
5V
0V
5V
1.4V
2.2V
2.5V
0V
0V
0V
0V
0V
0.5V
1.6V
1V
5V
5V
2V
2.3V
1.2V
P-P
F=8MHz
2.4V
P-P
F=8MHz
4.8V
0V
T16ms.
3.6V
0V
T16ms.
3V
0V
T16ms.
0V
4.8V
T16ms.
5ms. 2V/DIV. 0V
4.8V
0V (5V)
A
B
C
D
E
F
G
H
25 26 27 28 29 30 31 32 33 34 35 36
FW901
OPERATION CIRCUIT
E
1
2
3
4
5
6
7
8
D907
SML79455C
()
Q901
DTA143EUT106
LED DRIVE
D905
SML79455C
()
Q902
DTC143EUT106
LED DRIVE
S907
()
S906
()
S905
(DOLBY NR)
S904
(REC PAUSE)
S903
(TAPE EDIT)
S901
(OPEN)
S900
()
S915
(OPEN)
S909
()
S910
()
S912
(DECK 1/2)
S911
(REV MODE)
S914
(COUNTER
RESET)
S913
(COUNTER
DISPLAY)
R911
2.2K
R910
1.8K
R909
1.5K
R908
1.2K
R925
1K
R924
820
R905
2.2K
R904
1.8K
R903
1.5K
R902
1.2K
R901
1K R906
3.3K
R900
820
R915
680
R914
330
R916
330
Q904
DTC143EUT106
LED DRIVE(REV)
Q903
DTC143EUT106
LED DRIVE(FWD)
R917
680
D904
MA111TX
IC202
MC14066BFEL
SIGNAL CONT.
8 9 10 11 12 13
7654321
14
MAIN CIRCUIT
A
A
B
C
D
E
F
G
Q108
DTC143EUT106
SWITCHING
R126
22K
R234
100 C216
16V10
C215
16V10
R233
100
R226
47K
R208
47K
R225
47K
R207
47K
RS-DV290(EG) OPERATION, MAIN CIRCUIT DIAGRAM
:POSITIVE VOLTAGE LINE
5V
5V
0V
5V
0V
0V
STOP : 0V
5V
4.2V
0V
0V
0V
2.6V
0V
4.7V 8.3V
(0V) 9.6V4.7V 4.7V 4.7V
8.3V
(0V)
8.3V (0V)
(5V) 0V
9.6V
:PLAYBACK SIGNAL LINE
A
B
C
D
E
F
G
H
25 26 27 28 29 30 31 32 33 34 35 36
FW901
OPERATION CIRCUIT
E
1
2
3
4
5
6
7
8
D907
SML79455C
()
Q901
DTA143EUT106
LED DRIVE
D905
SML79455C
()
Q902
DTC143EUT106
LED DRIVE
S907
()
S906
()
S905
(DOLBY NR)
S904
(REC PAUSE)
S903
(TAPE EDIT)
S901
(OPEN)
S900
()
S915
(OPEN)
S909
()
S910
()
S912
(DECK 1/2)
S911
(REV MODE)
S914
(COUNTER
RESET)
S913
(COUNTER
DISPLAY)
R911
2.2K
R910
1.8K
R909
1.5K
R908
1.2K
R925
1K
R924
820
R905
2.2K
R904
1.8K
R903
1.5K
R902
1.2K
R901
1K R906
3.3K
R900
820
R915
680
R914
330
R916
330
Q904
DTC143EUT106
LED DRIVE(REV)
Q903
DTC143EUT106
LED DRIVE(FWD)
R917
680
D904
MA111TX
IC202
MC14066BFEL
SIGNAL CONT.
8 9 10 11 12 13
7654321
14
MAIN CIRCUIT
A
A
B
C
D
E
F
G
Q108
DTC143EUT106
SWITCHING
R126
22K
R234
100 C216
16V10
C215
16V10
R233
100
R226
47K
R208
47K
R225
47K
R207
47K
RS-DV290(EG) OPERATION, MAIN CIRCUIT DIAGRAM
:POSITIVE VOLTAGE LINE
5V
5V
0V
5V
0V
0V
STOP : 0V
5V
4.2V
0V
0V
0V
2.6V
0V
4.7V 8.3V
(0V) 9.6V4.7V 4.7V 4.7V
8.3V
(0V)
8.3V (0V)
(5V) 0V
9.6V
:PLAYBACK SIGNAL LINE
BA7755AF CXA1998BQT6 0N2180RLC1 2SD1450RSTA
2SB621ARSTA
2SD592ARSTA 2SD1819ARTX
2SD1328STXRA
DTA143EUT106
DTC114EUT106
DTC143EUT106
DTC144EUT106
2SC3940AQSTA 2SD2144STA 2SJ164QTA
2SJ164RTA
MA165TA MA4051MTA
MA4056MTA SML79455C MA111TX
16PIN
14PIN
42PIN
CXA1552M-T4
MC14066BFEL
M38503M2406F
14
5
8
12
13
1
25
36
24
37
48
No.1
4
3
2
1
3
2
4
1
ECB
DGS
E
C
B
ECB
E
C
B
ECB
A
Ca
Anode
Cathode
A
Ca
Anode
Cathode
A
Ca
Anode
Cathode
Ca
A
A
Anode
CathodeAnode
AMAIN P.C.B.
DEARTH TERMINAL P.C.B.
EOPERATION P.C.B.
W601
W601
CP102 CP101
[DECK 2]
R/P HEAD,
ERASE HEAD
[DECK 1]
PLAYBACK
HEAD
CP305 CAPSTAN
MOTOR
[DECK 2]
CP306 CAPSTAN
MOTOR
[DECK 1]
To DVD CHANGER, CD CHANGER,
CD PLAYER & SOUND PROCESSOR
CP902 CP901
CMECHANISM P.C.B. (DECK 2) BMECHANISM P.C.B. (DECK 1)
FW901
CN901
BLACK
1 . . . 5
2
4
1 . 5
1 . . . 5
2
4
1 . 5
1
.
.
4
1
.
.
4
1 . . . . . . . 91 . . . . . . . 9
1 . . . . . . 8
1 . . . . . . 8
CS951
1 . . . . . . . 9
CS971
1 . . . . . . . 9
CXA1552M-T4
IC201
DOLBY B NR
REC
EQ
5
4
3
21
R101,
C115
(R102,
C116)
Q103
(Q104)
11
42
(43)
41
(44)
40
(45)
39
(46)
29
(8) REC
EQ AMP
35 36 34 448 1 2 15 16
17 18
24
25
26
27
LATCH
SHIFT
REGISTER
REC EQ
CONT.
P.B. EQ
CONT.
AGC
38
(47)
31
(6) 30
(7)
22 21 20 19
32
(5)
12
15
R/P
5124
+B1
2
+B1
+B1
VR102(VR103)
PLAYBACK GAIN ADJ.
(DECK2)
DECK2
R/P HEAD
+B1
Q101
(Q102)
ATT2
ATT1
ATT3
SC DET
ON/OFF
CXA1998BQT6
IC101
R/P EQ AMP
BA7755AF
IC103
R/P SELECT
TPS
25
S975(F. REC. INH.)
S971(MODE)
AD SW 3
4
5
Z971
LADDER
RESISTOR
+B3
2
1
7
39
M38503M2406F
IC701
SYSTEM CONTROL
18 RESET
26 A DATA
27 A CLK
A LATCH
28
Q706,
D705 +B3
SYNC1
8
CN601
2
3
4
5
6
7
9
12
CS
+B(10V)
D.GND
SCLK
DATA
11
10
DECK REQ
NC
TAPE Rch OUT
RS A.GND13
14
15
16
17
18
RCH
CLK 10
8
REQ
Q701
7
HALT
CS 9
+B3
TAPE Lch OUT
TAPE Rch IN
TAPE Lch IN
RCH
DATA IN
DATA OUT
12
11
Q702,703
TP604
Q604,D606
D710
20
19
X OUT
XIN
X701
(8MHz)
Q107
Q303,304
BIAS
OSC
D301
DECK2
ERASE HEAD
+B1
L301 Q301,305,306
BIAS OSC
CONTROL
(CrO2/
METAL)
Q302
TP301 TP302
Q105
(Q106)
AMS
23
+B3
RFS MUTE
3
DECK1
PLAYBACK HEAD
+B1
714
MC14066BFEL
IC102
DECK 1/2 SELECT
VR104(VR101)
PLAYBACK GAIN ADJ.
(DECK1)
1
(11)
4
(8)
13
(12)
2
(10)
5
(6)
3
(9)
3
(14)
1
(16)
6
(11)
7
(10)
8
(9)
AVss
Vss
15,21
3
Q201
DOLBY
ON/OFF
31
32 DOLBY
ON/OFF
ENC/DEC
S953(CrO2,DECK1)
S973(CrO2,DECK2)
S976(METAL,DECK2)
CRO2 1
22
S951(MODE)
S952(HALF)
METAL 2
14
MODE
23
HALF1
24
6M1
S972(HALF)
S974(R. REC. INH.)
6
D951
SOLENOID
Q807,809
CAPSTAN
MOTOR
(DECK1)
VR801
(TAPE SPEED ADJ.)
M
Q803,805
+B2
D971 SOLENOID
Q808,810
CAPSTAN
MOTOR
(DECK2)
VR803
(TAPE SPEED ADJ.) M
Q804,806
+B2
M2 30
PL2 29
KEY2 41
KEY SWITCH
(S900,901,903~907,
909~915)
KEY1 42
To DVD CHANGER,
CD CHANGER,
CD PLAYER
BLOCK DIAGRAM &
SOUND PROCESSOR
BLOCK DIAGRAM
NC
NC
A.GND
NC
NC
+B2
TP609
VREF
+B3 Vcc
2
1
D707
5PL1
D101
D102
CRO2 2
13
+B3
Q903,904
D905,907
()
Q901,902
16
FWD LED 17
REV LED
37
LED CNT
PHOTO2 T 38
40 PHOTO1 T
19
20
NC
NC
+B1
Q602
DOLBY
L(R)ch
Rch IN
Lch IN
Rch OUT
Lch OUT
+B3
(D.GND)
A.GND
+10V
+B1
714
MC14066BFEL
IC202
SIGNAL CONT.
10
(8)
12
(6)
11
(9)
Q108
4
LMT
SOLENOID
DRIVE CAPSTAN
MOTOR
DRIVE
REGULATOR
INTERFACE
INTERFACE
LED
DRIVE
LED
DRIVE
CAPSTAN
MOTOR
DRIVE
SOLENOID
DRIVE
POWER
SUPPLY
0N2180RLC1
IC971
PHOTO
INTERRUPTER
0N2180RLC1
IC951
PHOTO
INTERRUPTER
Q202
R/P
SELECT
+B3
RS-DV290(EG) BLOCK DIAGRAM
CT.GND
SWITCH-
ING
RESET
R/P
SELECT
+B1
NOTES : PLAYBACK SIGNAL LINE
: RECORDING SIGNAL LINE
( ) indicates pin No. Right channel.
123456789101112
13
A
B
C
D
E
F
G
H
RS-DV290(EG) MAIN, OPERATION,EARTH TERMINAL, MECHANISM(DECK1,2) P.C.B.
Note: This printed circuit board diagram may be modified at any time with the development of new technology.
N
C302 6
5
41
2
3
L301
J
C303
C306
C304
C140
C305
C309
C114
C135
C136
C141
C205
C139
C112
C137
C113
C129
C111
C150
C213
C221
C301
C214
C222
C204
C206
C130
C124
C123
J
J
J
J
JJ
J
ECB
Q304
ECB
Q303
L302
R307
J
J
J
J
J
J
J
J
JJ
J
J
J
J
J
J
J
JR118 R119
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
JJ
J
J
J
J
J
C110
C109
SGD
Q101
SGDQ104
SGD
Q103
ECB
Q804
ECB
Q808
SGD
Q102
J
J
J
J
J
J
J
J
J
J
J
J
R313
R143
R820
VR102
VR103
VR104
VR101
1
2
3
4
5
6
7
8
9
CP902
1
23
45
CP102
C706
J
J
J
VR803
VR801
J
J
J
J
J
J
J
JJJ
J
J
J
J
J
J
J
J
J
J
1
2
3X701
1
2
3
4
5
6
7
8
9
CP901
1
2
3
4
5
6
7
8
CN901
J
J
J
D707
B
C
E
Q807 R818
L701
C702
C223
C217
C226
C218
C225
C220
C119
C120
C605
C603
C203
C219
L202
L201
J
R220
R237
1
23
45
CP101
C602
Q803
E
C
B
Q604
E
C
B
Q602
E
C
B
R630
R602
R609
R632
D606
R603
D651
D652
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
CN601
158
10
16
IC201
IC701
9
15
1510
15 2021
22
25
303540
42
157
810
14
IC102
IC101
IC103
15
10
12
13
15
20
2425
30
35
36
37
40
45 48
14
58
R309
R308
R310
R303
R110
R306
R305
R304
R120
R148
R149
R140
R139
R125
R127
R122
R121
R113
R117
R111
R105
R106
R144
R215
R213
R152
R813
R216
R214
R141
R142
R114
R133
R811
R812
R824
R136
R137
R721
R735
R703
R701
R722
R737
R736
R723
R724
R710
R747
R712
R745
R738
R728
R741
R727
R708
R744
R802
R806
R823
R814
R223
R153
R217
R154
R157
R604
R234
R606
R233
R158
R222
R224
R219
R212
R218
R211
R230
R221
R705
R704
R729
R743
R711
R702
R810
R808
R803
R805
R718 R134
R138
R732
R130
R151
R730
R147
R135
R112
R102
R132
R302
R107
R108
R131
R101
R150
R726
R725
R311
R109
R301
R103
R104
D301
C307
C323
C308
C132
C134
C126
C138
C142
C117
C102
C104
C118
C103
C101
C131
C143
C115
C116
C144
C125
C133
C311
C310
C
EB
Q107
C
E
B
Q810
C
E
BQ105
C
EB Q106
C
EB
Q301
C
EB
Q306 C
EB Q305
C
EB
Q302
RJ507
D102
D705
D706
D709
D708
D701
D101
1234
CP305
1234
CP306
C
EB
Q806
C
EB
Q202
C
EB
Q201
C
EB
Q706
RJ508
RJ509
C705
C707
C
E
B
Q702
C
E
B
Q703
C
EB
Q701
C
E
B
Q805
C
EB
Q809
L702
D710
RJ504
R231
R210
R209
C240
C239
C211
C604
C212
C208
C207
C241
MAIN P.C.B.
A
(REP2827E-M)
W601
J
TP302
TP301
C701
TP604
+10V
A.GND
DOLBY
L ch
DOLBY
R ch
R ch
OUT
L ch
IN
R ch
IN
L ch
OUT
(D.GND)
TP609
CT.GND
To DVD CHANGER, CD CHANGER,
CD PLAYER & SOUND PROCESSOR
C215
IC202
157
810
14
C216
R126
R225
R207
R208
R226
C
E
B
Q108
R232
1
2
3
4
5
6
7
8
FW901
J
J
J
J
J
J
R901
R902
R903
R904
R906
R900
R909
R915
R914
R916
R908
R924
R925 R917
R911
R905
R910
C
E
B
Q903
C
E
BQ904
D904
C
E
B
Q901
C
E
BQ902
OPERATION P.C.B.
E
(REP2827E-M)
S913
(COUNTER
DISPLAY)
S912
(DECK1/2)
S914
(COUNTER
RESET)
S909
( )
S905
(DOLBY NR)
S911
(REV MODE)
S903
(TAPE EDIT)
S904
( REC PAUSE)
S901
( OPEN)
S907
( ) D907
( )
S906
( )
S910
( )
S900
( )
D905
( )
S915
( OPEN)
E1
W601
EARTH TERMINAL P.C.B.
D
(REP2827E-M)
J
R952
J
D951
R953
1
2
3
4IC951
1
CS951
23456789
S953 S952 S951
SOLENOID
J
J
7
6
5
4
3
2
1
Z971
41
32
IC971
D971
S974 S973
SOLENOID
S972 S976 S971 123456789
CS971
R972
J
S975
R973
MECHANISM P.C.B. (DECK1)
BMECHANISM P.C.B. (DECK2)
C
14
23
14
23
4
3
2
1
0N2180RLC
IC971
0N2180RLC 1
14
23
14
23
14
23
14
23
14
23
4
3
2
1
0N2180RLC
IC951
0N2180RLC 1
14
23
14
23
14
23
(REPX0108A) (REPX0108B)
Note for IC951 replacement
Two different types (old or new) parts are mounted on P.C.B.
as for IC951.
When servicing, care to replace the parts due to those shape.
Replacement procedures
Old
New
Mount the parts on given position.
(Printed pattern on P.C.B.)
For IC951: Mount the parts so the cut
corner is located upper right.
Refer to
the figure
below.
0N2180RLC
0N2180RLC1
Parts No. Direction Remarks
Note for IC971 replacement
Two different types (old or new) parts are mounted on P.C.B.
as for IC971.
When servicing, care to replace the parts due to those shape.
Replacement procedures
Old
New
Mount the parts on given position.
(Printed pattern on P.C.B.)
For IC971: Mount the parts so the cut
corner is located upper right.
Refer to
the figure
below.
0N2180RLC
0N2180RLC1
Parts No. Direction Remarks
(Component side) (Component side)
Old
Old Old
Old
New
New New
New
121110987654321
A
B
C
D
E
F
G
H
3
6
4
MAIN CIRCUIT
A
B
A
C
B
A
CP101
1
2
3
4
5
CP102
1
2
3
4
5
IC103
BA7755AF
R/P SELECT
1 2 4
678
3
5
Q301
2SD1819ARTX
BIAS OSC CONT.
Q306
DTC144EUT106
BIAS OSC CONT.
Q305
DTC144EUT106
BIAS OSC CONT.
Q302
2SD1328STXRA
SWITCHING
(REC:ON) Q303,304
2SD1450RSTA
BIAS OSC
Q303
Q304
Q102
2SJ164RTA
HEAD SELECT
(REC:ON)
Q106
Q103,104
2SJ164QTA
HEAD SELECT
(PLAY:ON)
Q104
Q103
Q105,106
2SD1819ARTX
MUTING
Q105
Q101
2SJ164RTA
HEAD SELECT
(REC:ON)
S
G
D
S
G
D
D
G
S
D
G
S
L301
IC101
CXA1998BQT6
R/P EQ AMP
1
25
Lch
Rch
PLAYBACK
HEAD
DECK1
Lch
ERASE
HEAD
DECK2
Rch
R/P HEAD
R106
330K
C102
680P
C101
680P
R105
330K
C143
470P C115
470P
R101
5.6K
R103
100K
C150
10V100
C123
25V4.7
R119
22
R118
22
C130
16V100
C119
50V1
C140
16V10
C131
470P
C129
10V22 R117
1K
C117
330P
R111
82 R113
12K
C111
6.3V47
R109
1K
C109
0.018
R141
100
R142
100
R144
100
C144
470P
C104
680P
C110
0.018
C112
6.3V47
R112
82
R114
27K
R110
1K
C114
50V2.2
C113
50V2.2
R102
5.6K
R104
100K
C116
470P
C125
3300P
C126
3300P
C118
330P
R154
2.7K
C120
50V1
R133 33K
R130 4.7M
C139 6.3V47
R132
27K
C301
16V470
C303
6800P C302
100V2.2
N
R313
1
TP302TP301
R302
1.8K
R301
10K D301
MA111TX
C305
50V0.1
C304
16V100
R303
2.2K
R304
15K
R305
18K
R306
33K
R138
4.7K
R137
2.2K
C309
6.3V47
R308
1K
C311
0.01
C310
0.01 C308
3300P
R307
2.2
C323
1000P
C307
1000P
R309
4.7K
R310
4.7K
R311
4.7K
L302
100 H
R134
3.9K
R135
6.8K
D102
MA111TX
D101
MA111TX
R158 22K
R127
4.7K
R125
100K
C138
0.047
C137
50V0.1
C135 50V1
C136 50V1
R120
100K
C132
470P
R153
2.7K
R157
22K
C103
680P
R143
100
R107
10K
R131
330K
R108
10K
LATCHES
SHIFT
REGISTERS
PBEQ
CTL
AGC
AMSRECEQ
20K 20K
10K
MUTE
40K
AGC
GAIN
210K
210K
210K 210K
IREF
40K
AGC
GAIN
10K
RECEQ
RFS
12345678910 11 12
13
23
2437
38
39
40
41
42
43
44
45
46
47
48 20K 20K
252627282930313233343536
REQEQ
CTL
22
21
20
19
18
17
16
15
14
C306
0.039
R136
2.2K
C124
25V4.7
DOLBY
Rch
F
D
E
CNRMO
B
A
IC201
CXA1552M-T4
DOLBY B NR
1 2 3 4 5 8
912131415
ATT2
ATT2
ATT3
ATT3
ATT1
ATT1
SC DET
SC DET
6 7
101116
ON/OFF
R/P
BA
J
I
A
B
A
B
IC102
MC14066BFEL
DECK 1/2 SELECT
1234567
891011121314
Q107
DTA143EUT106
R/P SELECT
Q202
DTA143EUT106
R/P SELECT
Q201
DTA143EUT106
DOLBY ON/OFF
R209
1K
R725
2.2K
R730
2.2K
R726
2.2K
C134
470P
C133
470P
C142
0.1
C203
25V4.7 R211
10K
C207
270P
L201
R218
2.2K
R217
2.2K
C211
1500P
C220
10V470
C219
16V100
C241
0.01
R237
22 R220
22
C239
680P
C205
50V1
R221
100
R230
1K
R223
10K
C223
25V4.7
C221
50V0.68 R213
3K
R215
12K
C213
25V4.7
C225
25V4.7
C217
50V0.1
R222
100
R219
18K
C206
50V1
C240
680P
C212
1500P
R212
10K
R210
1K
C204
25V4.7
C208
270P
L202
C214
25V4.7
R216
12K
C226
25V4.7
R224
10K
R231
1K
R151
100K
R140
47K
R152
100K
R139
47K
C141
50V1
R148
5.6K VR102
20K(B)
R150
5.6K VR104
20K(B)
R214
3K
C222
50V0.68
R149
5.6K VR103
20K(B)
R147
5.6K VR101
20K(B)
C218
50V0.1
DOLBY
Lch
C
R122
10K
R121
10K
RS-DV290(EG) MAIN CIRCUIT DIAGRAM
9.6V
:POSITIVE VOLTAGE LINE : PLAYBACK SIGNAL LINE: RECORDING SIGNAL LINE
9.6V
0V0V
(0.2V)
9V
0V0V
0V0V
(8.9V)
0V
(0.7V)
0V
0V
0V
0V
(0.7V)
0V
(8.9V)
(0.2V)
9V
0V0V
6V
9.6V 0V 0V
(9.5V)
0V
(0.7V)
0V
0V
(0.6V)
0V 0V
(0.6V)
0V
(0.7V)
0V
(0.8V)
0V
(0.6V)
0V
9.5V
9.5V (0.6V)
0V
0V
(0.1V)
(0.1V)
0V
ERASE CURRENT
CHECK POINT
5V 0V 4.5V 4.5V 4.5V 4.5V 4.5V 8.6V 5V0V
(1.6V) 0V
(0.2V)
5V
5V
(9.6V)
0.1V
(0.1V)
9.6V
(0.2V)
9.6V
(0.2V)
5V
(5V)
0.2V
4.5V9V9V 4.5V 4.5V 4.5V 4.5V 0V5V 0V
1.2V
2.6V
2.6V
1.3V
0V
0V
0V
0V
1.3V
2.6V
2.6V
1.2V
5V
5V
9.6V
9.6V
(0.2V)
9.6V
0V
(9.5V)
4.8V 9.6V 4.7V 4.7V 4.6V 4.7V 0.4V 4.8V
4.8V 4.7V 1.2V 4.7V 0.4V 4.8V4.6V
(0V)
0V
5V
5V5V
(0V)
5V (5V)
0V
PLAYBACK
GAIN ADJ.
(DECK1/Lch)
PLAYBACK
GAIN ADJ.
(DECK2/Lch)
PLAYBACK
GAIN ADJ.
(DECK1/Rch)
PLAYBACK
GAIN ADJ.
(DECK2/Rch)
9.6V 9.6V
(0.1V) 0V0V0V 0V9.6V
(0.1V)
0V0V0V 0V (9.6V)
0.1V (9.6V)
0.1V
DOLBY
ON : 0V
13 14 15 16 17 18 19 20 21 22 23 24
MAIN CIRCUIT
A
MECHANISM CIRCUIT (DECK1)
B
MECHANISM CIRCUIT (DECK2)
C
CP901
CS951
CP902CS971
Q806
DTA143EUT106
MOTOR DRIVE
Q804
2SD592ARSTA
MOTOR DRIVE
CP305
1
2
3
4
Z971
1234567
4.7K
50K
25K
4.7K
4.7K
4.7K
50K
50K
50K
50K
25K 25K
A
B
D
C
IC971
0N2180RLC1
PHOTO
INTERRUPTER
C
A
B
Q803
2SD592ARSTA
MOTOR DRIVE
Q805
DTA143EUT106
MOTOR DRIVE
CP306
1
2
3
4
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
Q807
2SB621ARSTA
SOLENOID DRIVE
Q809
DTC143EUT106
SOLENOID DRIVE
Q810
DTC143EUT106
SOLENOID DRIVE
Q808
2SB621ARSTA
SOLENOID DRIVE
DL
CAPSTAN
MOTOR
(DECK1)
A
B
M
CAPSTAN
MOTOR
(DECK2)
A
B
M
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
R806
10K
R802
560 R823
560 R824
560 R812
560
R811
10K
R814
470
R818
2.2
R805
3.9K R803
10K
R810
10K R808
3.9K
VR803
5K(B)
VR801
5K(B)
R820
2.2
R813
470
B
A
C
R952
820
D951
MA165TA
SOLENOID
S951
(MODE)
S953
(CrO2)
S952
(HALF)
S973
(CrO2)
S976
(METAL)
S972
(HALF)
S971
(MODE)
S974
(R.REC.INH.)
S975
(F.REC.INH.)
R972
820
D971
MA165TA
SOLENOID
D
IC951
0N2180RLC1
PHOTO
INTERRUPTER
R953
39K
12
34
AGHB
Q
S
P
F
R973
39K
1 2
3 4
TP609
CN601
CN901
IC701
M38503M2406F
SYSTEM CONTROL
E
C
A
B
D
J
I
H
G
F
PQR
JEDG
AC E
E
D
A
C
B
I
H
F
Q701
Q703
Q702
2SD1819ARTX
INTERFACE
13
2
X701
(8MHz)
CBAFIOJKLMNGH
Q604
2SC3940AQSTA
REGULATOR R603
10
TP604
+10V
(D.GND)
R602
0.33
R630
0.33
Q602
2SD2144STA
POWER SUPPLY
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
20
17
18
19
SYNC
CS
+B (10V)
D.GND
SCLK
DATA
DECK REQ
NC
TAPE Lch IN
A.GND
TAPE Rch IN
TAPE Lch OUT
TAPE Rch OUT
RS A.GND
EARTH
TERMINAL
CIRCUIT
D
W601 E1
1
2
3
4
5
6
7
8
Q701,703
2SD1819ARTX
INTERFACE
Q706
DTC114EUT106
RESET
C707
0.01
D706
MA111TX
D710
MA111TX
BD
R745
100
R710 1K
R724 1K
R723 1K
D707
MA4051MTA
L702
R738
1K R747
1K
R704
4.7K
R744
1K
R727
4.7K
R708
4.7K
R729
4.7K
R741
22K
D708
MA111TX
R743
47K
R705
47K
D709
MA111TX
R728
10K
R722
100
R703
5.6K
R732 100K
R721 4.7K
R735 4.7K
R632
47K
R609
100
D651
MA165TA
D652
MA165TA
R604
330
C602
16V220
C605
16V220
C603
16V47
D606
MA4056MTA C604
0.01
R606
1.5K
R712 68K
R718 68K
R701 10K
R702 10K
C705
0.01
C701
0.01
R711
100K
C702
6.3V100
C706
50V3.3
D705
MA111TX
R737 10K
R736 10K
D701
MA111TX
NC
NC
NC
NC
NC
NC
To DVD CHANGER(SL-DV290)
CD CHANGER (SL-EH790)
CD PLAYER(SL-EH590) &
SOUND PROCESSOR
(SH-DV290,SH-EH790,590)
CT.GND
Rch
OUT Lch
OUT Rch
IN Lch
IN
A.GND
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21
313233343536373839404142 222324252627282930
KEY1 VCC
VREF
AVSS
LMT
PL1
M1
HALT
REQ
CS
CLK
VSS
VSS
XOUT
XIN
RESET
REV LED
FWD LED
CRO2 2
METAL 2
DATA IN
DATA OUT
CRO2 1
MODE
HALF1
TPS
A LATCH
PL2
M2
ENC/DEC
DOLBY ON/OFF
ECS
NC
KEY2
NC
NC
A CLK
A DATA
LED CNT
AD SW
PHOTO1 T
PHOTO2 T
F
EDABC
R232
10K
F
G
S
L701
10 H
RS-DV290(EG) MAIN,MECHANISM(DECK1,2), EARTH TERMINAL CIRCUIT DIAGRAM
E
K
:POSITIVE VOLTAGE LINE
5V
10.3V
5V
10.3V
5V
10.3V
5V
5V
10.3V
0V
10.3V
0V
0V
10.2V 0V 10.2V
0V
10.3V
0V
10.3V
0V
0V
9.8V 5V0V
5V
TAPE SPEED
ADJ.(DECK1)
0V
5V
5V
0V 0V
0.8V
TAPE SPEED
ADJ.(DECK2)
: PLAYBACK SIGNAL LINE: RECORDING SIGNAL LINE
5V
1.9V
0.1V
0V
1.8V
0V
0V
0.6V
0.2V
0V
5V
0V
0V
9.4V5V
5.7V
10.3V9.6V
10.3V
10.3V
5V
9.6V
5V
0V
5V
2.9V
5V
5V
5V
5V
5V
2.7V
0V
0V
0V
0V
0V
(5V) 0V
0V
5V
STOP : 0V
5V
5V
0V
5V
1.4V
2.2V
2.5V
0V
0V
0V
0V
0V
0.5V
1.6V
1V
5V
5V
2V
2.3V
1.2V
P-P
F=8MHz
2.4V
P-P
F=8MHz
4.8V
0V
T16ms.
3.6V
0V
T16ms.
3V
0V
T16ms.
0V
4.8V
T16ms.
5ms. 2V/DIV. 0V
4.8V
0V (5V)
ORDER NO. AD0305100C8
Tuner/ Amplifier
SA-DV290EE / SA-DV290GN
Colour
(S).......................Silver Type
System: SC-DV290
Because of unique interconnecting cables, when a
compact requires service, send or bring in the entire
system.
SPECIFICATIONS
Specification
1
Amplifier section
Power output (L/R both channel driven)
Stereo Mode
DIN 1 kHz THD 1%/6 (High) 2×25 W
100 Hz THD 1%/8 (Low) 2×45 W
RMS 1 kHz THD 10%/6 (High) 2×35 W
100 Hz THD 10%/8 (Low) 2×65 W
PRO LOGIC mode
DIN FRONT
1 kHz THD 1%/6 (High) 2×25 W
100 Hz THD 1%/8 (Low) 2×45 W
SURROUND 1 kHz THD 1%/8 2×30 W
CENTER 1 kHz THD 1%/8 60 W
RMS FRONT
1 kHz THD 10%/6 (High) 2×35 W
100 Hz THD 10%/8 (Low) 2×65 W
SURROUND 1 kHz THD 10%/8 2×40 W
CENTER 1 kHz THD 10%/8 80 W
PMPO 1 kHz/High 6 , Low 8 ,
CENT. 8 , SURR. 8 3000 W
Total harmonic distortion
Rated power at 1 kHz 1% (6 )
Half power at 1 kHz 0.1% (6 )
Load impedance
FRONT (High) 6
FRONT (Low) 8
SURROUND 8
CENTER 8
DIGITAL S. WOOFER
Center frequency 60 Hz
LEVEL (VOL -20 db) MID +3 db
MAX +6 db
FM tuner section
Frequency range 87.50108.00 MHz
(0.05 MHz steps)
Sensitivity 1.8 V (IHF usable)
S/N 26 db 1.5 V
S/N
MONO 70 db (75 db, IHF)
Antenna terminal(s) 75 (unbalanced)
AM tuner section
Frequency range 5221629 kHz (9 kHz steps)
5201630 (10 kHz steps)
Sensitivity (S/N 20 db) 500 V/m
Timer section
Clock Quartz-lock type
Function Play timer (1 time, daily),
2
Function
Play
timer
(
1
time,
daily),
Rec timer (1 time, daily)
Sleep (120 min, 30 min intervals)
Setting intervals (Play/Rec) 1 minute23 hours 59 minutes
(1 min intervals)
General
Power supply
(For (GN) area) AC 230240V 50Hz
(For (EE) area) AC 230V 50Hz
Power consumption 230 W
Standby 0.5 W
Dimensions (W×H×D) 293×118.5×345 mm
Mass 5.3 kg
Nots 1.Design and specifications are subject to
change without notice.
2.Dimensions and weight are approximate.
3.Total harmonic distortion is measured by the
digital spectrum analyzer.
System/SC-DV290
Sound processor: SH-DV290, DVD/ Video CD/ CD
changer: SL-DV290, Tuner/ Amplifier: SA-DV290 ,
Cassette Deck: RS-DV290, Speakers: Front* (SB-
DV290),Center* (SB-PC95),Surround* (SB-PS95)
(*Madein MESA.)
1. Accessories
- AC mains lead for (EE) areas
(RJA0019-2X)....................1 pc.
- AC mains lead for (GN) area
3
(RJA0035-2X)....................1 pc.
- Remote control for (EE) area
(EUR7702290)....................1 pc.
- Remote control for (GN) area
(EUR7702300)....................1 pc.
- Remote control batteries
(R6/LR6,AA,UM-3)....................1 pc.
Note: These are available on sales route.
4
- FM indoor antenna for (EE) area
(N1EAYY000002)....................1 pc.
- FM indoor antenna for (GN) area
(N1EAYY000001)....................1 pc.
- AM loop antenna set
(N1DAEYA00008)....................1 pc.
- Speaker leads
(REE1234-1)....................2 pc.
(Red/Black)
(REE1233-1)....................2 pc.
(Gray/Blue)
5
- Video cord
(K2JA2A000018)....................1 pc.
- RCAJ adaptor for (EE) area
(K1JZ24D00002)....................1 pc.
2. Before Repair and Adjustment
1. Turn off the power supply. Using a 10 , 10W resistor, connect
both ends of power supply capacitors (C701-704) in order to
discharge the voltage.
2. Before turning the power supply on, after completion of repair,
slowly apply the primary voltage by using a power supply voltage
controller to make sure that the consumed current at 50 Hz in NO
SIGNAL mode should be shown below with respectto
supplyvoltage230 V/240 V.
Areas (EE) (GN)
Power supply voltage AC 230V AC 230-240V
Consumed current 50 Hz 130-380 mA 50 Hz 130-380 mA
3. About the Protection Circuitry
The protection circuitry may have operated if either of the following conditions is noticed:
6
*No sound is heard when the power is supplied.
*Sound stops during a performance.
The functions of this circuitry is to prevent circuitry damage, for example, the positive and
negative speaker connection wires are shorted, or if speaker systems with an impedande less
than the indicated rated impedance of thisunitareused.
If this occurs, follow the procedure outlined below:
1. Press the STANDBY /ON button, switch to STANDBY mode.
2. Determine the cause of the problem and correct it.
3. Press the STANDBY /ON button once again, supply the power.
Note:
When the protection circuitry functions, the unit will not operate unless the STANDBY /ON
button is first switched STANDBY and then ON again.
4. Operating Instructions
5. Operation Checks and Component Replacement
Procedures
- This section describes procedures for checking the operation of
the major printed circuit boards and replacing the main
components.
- For reassembly after operation checks or replacement, reverse the
respective procedures. Special reassembly procedures are
described only when required.
5.1. Checking for the AC IN P.C.B.
- Check the AC IN P.C.B. as shown below.
7
5.2. Checking for the operation P.C.B.
- Follow the (Step 1) - (Step 3) of item 5.1.
- Check the operation P.C.B. as shown below.
5.3. Checking for the main P.C.B.
8
- Follow the (Step 1) - (Step 3) of item 5.1.
9
- Check the main P.C.B. as shown below.
5.4. Replacement for the regulator transistor
10
- Follow the (Step 1) - (Step 3) of item 5.1.
5.5. Replacement for the power IC
- Follow the (Step 1) - (Step 3) of item 5.1.
- Follow the (Step 1) - (Step 6) of item 5.2.
- Follow the (Step 1) - (Step 10) of item 5.3.
11
6. Self-Diagnostic Function
This unit equipped with a self-diagnostic function which, in the event of a malfunction,
automatically displays a code indicating the nature of the malfunction.
Use this self-diagnostic function when servicing the unit.
6.1. To display the malfunction code
U70 DVD: Automatically displays on the
U70 DECK:tuner/amplifier when a
malfunction occurs. Refer to
Fig. 6-1.
F61: Automatically displays on the
tuner/amplifier when a
malfunction occurs. Refer to
Fig. 6-1.
Fig. 6-1
12
6.2. To return to the normal display
1. For U70 DVD/U70 DECK
- Press an any operation button on the tuner/amplifier.
- To re-display the code, switch the power off (POWER
STANDBY button), and then switch power back on again.
2. For F61
- If F61 is displayed, the power will automatically be switched
off and the standby indicator will light up.
- F61 will be displayed for 3 seconds, and then the clock will be
displayed.
- To re-display the code, switch the power on. F61 will be re-
displayed, and then after 3 seconds the clock will be displayed
and the power will automatically switch off.
6.3. Display contents
6.3.1. U70 DVD, U70 DECK / (displayed automatically)
- Problem or condition
A bus-line communications error has occurred as a result of the
flat cables being inserted incorrectly, thus preventing the system
from operating.
13
- If U70 is displayed on the tuner/amplifier, the Cassette deck or DVD
Changer cannot be operated by remote control.
- Correction Procedure
1. To check for correct insertion of the flat cables.
- Insert each connectors until you hear a click.
- Insert the flat cables at the back of the unit in the order
indicated. Refer to Fig. 6-2.
Make sure the white side of the cables is on your right side.
Refer to Fig. 6-3.
Fig. 6-2.
Fig. 6-3.
2. Breakage of the flat cables. (Check and replace.)
3. If the problem is not corrected by items 1 and 2 above, this
indicates a faulty IC.
SA-DV290:
IC901 (C2BBFD000404)
SL-DV290:
IC401 (C2BBFD000402)
RS-DV290:
IC701 (M38503M2406F)
Check these ICs and replace.
6.3.2. F61
- Problem or condition
When the power switch is switched on, it automatically switches
back off, making it impossible to switch power on.
14
- Correction procedure
Faulty Tuner/Amplifier (SA-DV290) output IC (IC601).
(When a DC voltage is applied to speaker terminals.)
7. To Supply Power Source
This unit SA-DV290 is designed to operate on power supplied form system connected.
For system connection, refer to Fig. 7-1.
Fig. 7-1.
When the unit SA-DV290 has to test and service alone, use the following method to supply power
source.
1. Short the section between W902A Pin 3 and C740 (-) (GND). (Refer
to Fig. 7-2.)
2. Connect this unit to an AC power supply cord.
(This unit come to stand-by mode.)
3. Turn the unit ON.
Fig. 7-2.
15
Notes:
Use only this method when checking the voltage etc..
In case of checking operations, use the system connections to supply power source.
8. Schematic Diagram Notes
8.1. Type Illustration of IC's, Transistors and Diodes
8.2. Schematic Diagram Notes
- This schematic diagram may be modified at any time with the
development of new technology.
Notes:
- S901: Power Standby/on ( ) switch.
- S902: Clock/timer (CLOCK/TIMER) switch.
- S903: Demo (-DEMO) switch.
- S904: Play timer/record timer ( PLAY/ REC) switch.
- S905: FM mode (FM AUTO/MONO) switch.
- S906: Tuning mode (TUNING MODE) switch.
- S907: Set (SET) switch.
- S908: Source input (INPUT SELECTOR) switch.
- S909: Echo (ECHO) switch. For [GN] area.
- S910: Tuning (TUNIN