Sharp CD-C472 User manual

– 1 –
CD-C472/C3400/C3400C/C3800/C3800C
No. S2812CDC472//
Illustration: CD-C472
Illustration: CD-C3400/C3400C/C3800/C3800C
CONTENTS Page
IMPORTANT SERVICE NOTES (For U.S.A. Only) .......................................................................................................... 2
SPECIFICATIONS .............................................................................................................................................................3
NAMES OF PARTS .......................................................................................................................................................... 4
OPERATION MANUAL..................................................................................................................................................... 6
QUICK GUIDE .................................................................................................................................................................. 7
DISASSEMBLY................................................................................................................................................................. 8
REMOVING AND REINSTALLING THE MAIN PARTS.................................................................................................. 11
ADJUSTMENT................................................................................................................................................................ 12
NOTES ON SCHEMATIC DIAGRAM ............................................................................................................................. 15
WAVEFORMS OF CD CIRCUIT..................................................................................................................................... 16
BLOCK DIAGRAM .......................................................................................................................................................... 17
SCHEMATIC DIAGRAM / WIRING SIDE OF P.W.BOARD.............................................................................................20
TROUBLESHOOTING (CD CHANGER CONTROL / CD SECTION) ............................................................................ 34
FUNCTION TABLE OF IC .............................................................................................................................................. 38
FL DISPLAY.....................................................................................................................................................................44
REPLACEMENT PARTS LIST/EXPLODED VIEW
PACKING OF THE SET (For U.S.A. Only)
CD-C472
CP-C472, CP-SW472, CENTER(GBOXS0006AWM1)
and REAR(GBOXS0007AWM1), Constitute CD-C472.
CD-C3400/C3400C
CP-C3400, CP-SW472, CENTER(GBOXS0006AWM1)
and REAR(GBOXS0007AWM1), Constitute CD-C3400/C3400C.
CD-C3800/C3800C
CP-C3800, CP-SW3800, CENTER(GBOXS0006AWM3)
and REAR(GBOXS0007AWM3), Constitute CD-C3800/C3800C.
• In the interests of user-safety the set should be restored to its
original condition and only parts identical to those specified be
used.
Manufactured under license from Dolby Laboratories Licens-
ing Corporation. DOLBY, the double-D symbol and
"PRO LOGIC" are trademarks of Dolby Laboratories Licens-
ing Corporation.
SERVICE MANUAL
This document has been published to be used
for after sales service only.
The contents are subject to change without notice.
SHARP CORPORATION

CD-C472/C3400/C3400C/C3800/C3800C
– 2 –
FOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT, PLEASE REFER
TO THE OPERATION MANUAL.
IMPORTANT SERVICE NOTES (For U.S.A.Only)
BEFORE RETURNING THE AUDIO PRODUCT
(Fire & Shock Hazard)
Before returning the audio product to the user, perform the
following safety checks.
1. Inspect all lead dress to make certain that leads are not
pinchedorthathardwareisnotlodgedbetweenthechassis
and other metal parts in the audio product.
2. Inspect all protective devices such as insulating materials,
cabinet, terminal board, adjustment and compartment
covers or shields, mechanical insulators etc.
3. To be sure that no shock hazard exists, check for leakage
current in the following manner.
* Plug the AC line cord directly into a 120 volt AC outlet.
* Using two clip leads, connect a 1.5k ohm, 10 watt resistor
paralleled by a 0.15µF capacitor in series with all exposed
metal cabinet parts and a known earth ground, such as
conduit or electrical ground connected to earth ground.
* Use a VTVM or VOM with 1000 ohm per volt, or higher,
sensitivity to measure the AC voltage drop across the
resistor (See diagram).
* Connect the resistor connection to all exposed metal parts
havingareturnpathtothechassis(antenna,metalcabinet,
screw heads, knobs and control shafts, escutcheon, etc.)
and measure the AC voltage drop across the resistor.
AllcheckmustberepeatedwiththeAClinecordplugconnection
reversed.
Anyreading of0.3voltRMS(thiscorrespondsto 0.2milliamp.
AC.) or more is excessive and indicates a potential shock
hazard which must be corrected before returning the audio
product to the owner.
TO EXPOSED
METAL PARTS
CONNECT TO
KNOWN EARTH
GROUND
TEST PROBE
0.15 µ F
1.5k ohms
10W
VTVM
AC SCALE

– 3 –
CD-C472/C3400/C3400C/C3800/C3800C
Front speaker section
Type: 2-way 4-3/4" (120 mm) woofer and 2" (50
mm) tweeter type
Maximum input power: 50 W
Impedance: 8 ohms
Dimensions: Width; 7-1/8" (180 mm)
Height; 11-13/16" (300 mm)
Depth; 8-1/2" (216 mm)
Weight: 5.7 lbs. (2.6 kg)/each
Type: 3-way type 4-3/4" (120 mm) woofer, 2"
(50 mm) tweeter and super tweeter]
Maximum input power: 50 W
Impedance: 8 ohms
Dimensions: Width; 7-7/8" (180 mm)
Height; 11-13/16" (300 mm)
Depth; 8-1/2" (215.5 mm)
Weight: 5.5 lbs. (2.5 kg)/each
Center speaker section
Type: 4" (100 mm) full range speaker
Maximum input power: 20 W
Impedance: 6 ohms
Dimensions: Width; 10-5/16" (262 mm)
Height; 5-3/4" (145 mm)
Depth; 7-15/16" (201 mm)
Weight: 2.6 lbs. (1.2 kg)
Rear speaker section
Type: 4" (100 mm) full range speaker
Maximum input power: 10 W
Impedance: 12 ohms
Dimensions: Width; 6-3/4" (170 mm)
Height; 4-13/16" (122 mm)
Depth; 6-15/16" (176 mm)
Weight: 1.3 lbs. (0.6 kg)/eac
Sub woofer section
Type: 5-1/8" (130mm) full range speaker
Maximum input power: 60 W
Impedance: 6 ohms
Dimensions: Width; 7-7/8" (200 mm)
Height; 11-13/16" (300 mm)
Depth; 11-11/16" (297 mm)
Weight: 7.9 lbs. (3.6 kg)
CP-C472
CP-C3400/C3800
GBOXS0006AWM1/3
GBOXS0006AWM1/3
General
Power source: AC 120 V, 60 Hz
Power consumption: 100 W
Dimensions: Width; 10-5/8" (270 mm)
Height; 11-13/16" (303 mm)
Depth; 13-13/16" (350 mm)
Weight: 14.0 lbs. (6.4 kg)
Amplifier section
Output power: Front speakers; 25 W minimum RMS into
8 ohms from 60 Hz to 20 kHz with no
more than 10 % total harmonic distortion.
Center speaker; 10 W
(1 kHz, 10 % T.H.D.)
Rear speakers; 10 W (total)
(1 kHz, 10 % T.H.D.)
Sub woofer; 30W
(80Hz, 10% T.H.D.)
Output terminals: Front speakers; 8 ohms
Center speakers; 6 ohms
Rear Speakers; 12 ohms
Sub woofer; 6 ohms
Headphones; 16-50 ohms
(recommended; 32 ohms)
Input terminal: Video/Auxiliaary (audio signal);
500 mV/47 kohms
Tuner section
Frequency range: FM; 87.5 - 108 MHz
AM; 530 - 1,720 kHz
Cassette deck section
Frequency response: 50 - 14,000 Hz (Normal tape)
Signal/noise ratio: 55 dB (TAPE 1, playback)
50 dB (TAPE 2, recording/playback)
Wow and flutter: 0.15 % (WRMS)
Compact disc player section
Type: 3-disc multi-play compact disc player
Signal readout: Non-contact, 3-beam semiconductor
laser pickup
D/A Converter: 1-bit D/A converter
Frequency response: 20 - 20,000 Hz
Dynamic range: 90 dB (1 kHz)
Specifications for this model are subject to change without prior notice.
SPECIFICATIONS
CD-C472/C3400/
C3400C/C3800/C3800C
CP-SW472/SW3800

CD-C472/C3400/C3400C/C3800/C3800C
– 4 –
NAMES OF PARTS
Rear Panel
1. AC Power Input Socket
2. FM/AM Loop Aerial Socket
3. Video/Auxiliary (Audio Signal) Input Sockets
4. Sub woofer Terminals
5. Rear Speaker Terminals
6. Center Speaker Terminals
7. Front Speaker Terminals
Front Panel
1. Disc Tray
2. Disc Number Selector Buttons
3. Disc Skip Button
4. Open/Close Button:
5. Disc Number Indicator
6. Timer Indicator
7. Record Indicator
8. Sleep Indicator
9. Extra Bass Indicator: X-BASS
10. Function/CD Track/CD Counter/Frequency/Preset
Channel/Volume/Timer/Sleep Time Indicator
11. Memory Indicator
12. FM Stereo Mode Indicator: ST
13. FM Stereo Indicator:
14. CD Repeat Indicator:
15. CD Play Indicator:
16. CD Pause Indicator:
17. Power Button
18. Bypass Button
19. Phantom Button
20. Extra Bass Button: X-BASS
21. Main Volume Up/Down Buttons:
22. Function Selector Buttons
23. Timer/Sleep Button
24. Clock Button
25. Headphone Socket
26. Tuning and Time Up/Down Buttons:
27. Memory/Set Button
28. Record Pause Button:
29. (CD)Track Down/Review Button:
(TUNER)Preset Down Button:
30. Stop Button:
31. Normal Button
32. Play/Repeat Button:
33. (CD)Track Up/Cue Button:
(TUNER)Preset Up Button:
34. Equalizer Selector/Demo Mode Button
35. CD Pause Button
36. Random Button
37. Clear Button
38. Sub woofer volume Control
39. (TAPE 1) Cassette Compartment
40. (TAPE 2) Cassette Compartment
CD-C472/C3400/
C3400C/C3800/C3800C
1234
17 18 19 20 21
22
23
24
25
26
3031 32 33 34 35 27 2829
37
36
38
39 40
MEMORY ST
kHz
MHz
123
REC SLEEP X-BASS
56789
10 111213
14
15 16
1
2
3
4
5
6
7

– 5 –
CD-C472/C3400/C3400C/C3800/C3800C
CP-C472
Speaker Section
Front Speaker
1. Tweeter
2. Woofer
3. Bass Reflex Duct
4. Speaker Wire
5. Tweeter
6. Super Tweeter
7. Woofer
8. Bass Reflex Ducts
9. Speaker Wire
Center Speaker
10. Full Range Speaker
11. Speaker Wire
Sub woofer
12. Full Range Speaker
13. Speaker Wire
Rear Speaker
14. Full Range Speaker
15. Speaker Wire
1
2
3
4
5
6
8
79
10
11
12 13 14 15 16 17
18 19 20 21
24
25
26
27
22
23
28
CP-C3400/C3800
CP-SW472/SW3800
GBOXS0006AWM1/3
CD-C472/C3400/
C3400C/C3800/C3800C
Remote Control
1. Remote Control Transmitter LED
2. Surround Level Buttons:
3. Center Level Buttons:
4. Dolby Pro Logic Button
5. Center Mode Button
6. Test Tone Button
7. Balance Control Buttons:
Tuner control section
8. Preset Up/Down Buttons:
CD Control section
9. Disc Skip Button
10. Play/Repeat Button:
11. Memory Button
12. Clear Button
13. Pause Button:
14. Track Down/Review Button:
15. Track Up/Cue Button:
16. Stop Button:
17. Random Button
GBOXS0006AWM1/3
15
14
10
11
12
13
2
3
1
4
5
6
7
89
CP-C472
Front Speaker CP-C3400/3800
Front Speaker
Tape control section
18. (TAPE 1) Play Button:
19. (TAPE 1/2) Stop Button:
20. (TAPE 2) Play Button:
21. (TAPE 2) Record Pause Button:
22. (TAPE 2) Rewind Button:
23. (TAPE 2) Fast Forward Button:
24. Equalizer Mode Button
25. Function Selector Buttons
26. Power Button
27. Extra Bass Button: X-BASS
28. Volume Up/Down Buttons:

CD-C472/C3400/C3400C/C3800/C3800C
– 6 –
OPERATION MANUAL
SETTING THE CLOCK
POWER CLOCK MEMORY/ SET TUNING/ TIME ( )
AM 12:00 AM 0:00 0:00
2
3
4
7
6
5
8
9
(Main unit operation)
1Press the POWER switch to turn the power off. 2Press the CLOCK button. 3Within 3 seconds, press the MEMORY/SET button.
4Press the TUNING/TIME ( or ) button to select the time
display mode.
"AM 12:00" →The 12-hour display will appear. (AM 12:00 - PM 11:59) "AM 0:00" →The 12-hour display will appear. (AM 0:00 - PM 11:59) "0:00" →The 24-hour display will appear. (0:00 - 23:59)
●Note that this can only be set when the unit is first installed
or it has been reset (see page 18).
5Press the MEMORY/SET button. 6Press the TUNING/TIME ( or ) button to adjust the hour. ●Press the TUNING/TIME button once to advance the time by
1 hour. Hold it down to advance continuously.
●When the 12-hour display is selected, "AM" will change auto-
matically to "PM".
7Press the MEMORY/SET button. 8Press the TUNING/TIME ( or ) button to adjust the
minutes.
●Press the TUNING/TIME ( or ) button once to advance
the time by 1 minute. Hold it down to change the time in 5 minute intervals.
●The hour setting will not advance even if minutes advance
from "59" to "00".
9Press the MEMORY/SET button. ●The clock starts operating from "0" seconds. (Seconds are
not displayed.)
Note: ●In the event of a power failure or when the AC power cord
is disconnected, the clock display will go out. When the AC power supply is restored, the clock display will flash on and off to indicate the time when the power failure occurred or when the AC power cord was disconnected. If this happens, follow the procedure below to change the clock time.
To change the clock time:
When the POWER switch is set to OFF.
① Press the MEMORY/SET button. ② Perform steps 6 - 9 above.
When the POWER switch is set to ON.
① Press the CLOCK button. ② Within 3 seconds, press the MEMORY/SET button. ③ Perform steps 6 - 9 above.
To see the time display: Press the CLOCK button. ●The time display will appear for about 3 seconds.
To change the time display mode: ① Perform steps 1 - 2 in the section "RESETTING THE MICRO-
COMPUTER", on page 18.
② Perform steps 1 - 9 above.
In this example, the clock is set for the 12-hour (AM 12:00) system.
RESETTING THE MICROCOMPUTER
Reset the microcomputer under the following conditions: ●To erase all of the stored memory contents (clock and timer
settings, and tuner and CD presets).
●If the display is not correct. ●If the operation is not correct. 1
Press the POWER switch to turn the power off.
2
While pressing down the VOLUME button and the /
button, hold down the POWER button for at least 1 sec-
ond.
Caution: ●The operation explained above will erase all data stored in
memory including clock and timer settings, and tuner and CD presets.
1,2
2
2

– 7 –
CD-C472/C3400/C3400C/C3800/C3800C
MINI COMPONENT SYSTEM
CD-C472 Quick-Guide
Guía rápida
Preparation for use
Preparación para su uso
8 OHMS
MIN. 6 OHMS MIN. 6 OHMS MIN.
12 OHMS
MIN.
RIGHT
RATED SPEAKER IMPEDANCE:
LEFT RIGHT LEFT
SPEAKERS
FRONT
CENTER
REAR
SUB WOOFER
A
B
C
D
A
B
C
D
+
+
15
15
POWER
POWER
Turning the power on
and off
Conexión y desconex-
ión de la alimentación
Remote control
Control remoto
CD playback
Reproducción de discos compactos
Precaution
OPEN
/CLOSE OPEN /CLOSE
C D
●AM Loop Antenna
●
Antena de cuadro de AM
●FM Antenna
●
Antena de
FM
●AC 120 V, 60 Hz
●
120 V de CA, 60 Hz
White line
Línea blanca
White line
Línea blanca
White line
Línea blanca
Red
Rojo
Black
Negro
Red
Rojo
Red
Rojo
Black
Negro
Black
Negro
●2 "AA" batteries
●
Dos pilas "AA"
●Batteries are not included.
●
Las pilas no están incluidas.
Remote Sensor
Sensor remote
8" - 20' (0.2m - 6m)
0,2m - 6m
●Label facing up
●
Etiqueta hacia arriba
●The sound level at a given volume setting
depends on a combination of speaker efficiency,
location and many other factors. It is advisable
to avoid exposure to high volume levels, which
occur while turning the unit on with the volume
control setting up high, or while continually
listening at high volume levels.
●Only discs bearing the logo as
shown can be played in this
unit.
TAPE 1
TAPE
(1 2)
TAPE 2
REC PAUSE
C D
TAPE 2
TUNER
(BAND)
TUNING/TIME
ST
FM STERO
FM MONO
AM
VOLUME
UP • • •
X-BASS
DOWN •
VOLUME
FLAT HEAVY-1 HEAVY-2
SOFT-2 SOFT-1 VOCAL
Recording from CDs
Grabación de discos compactos
Tape playback
Reproducción de cintas
Radio operation
Funcionamiento de la radio
Precaución
Sound control
Control del sonido
Load the disc to be
recorded.
Introduzca el disco
que va a grabar.
VOLUME
UP • • •
X-BASS
DOWN •
X-BASS
CD recording
starts.
La grabación de
CD empieza.
• El nivel de sonido en una posición de volumen
fijado depende de una combinación del
rendimiento de las altavoces, la posición y
muchos otros factores. Es aconsejable evitar
un aumento de volumen. Esto se produce, por
ejemplo, al conectar el aparato con el volumen
puesto en una posición alta. Evite continuar la
audición prolongada a altos
niveles de sonido.
• En este aparato sólo pueden
reproducirse los discos que
tengan el logotipo mostrado.
Main volume Sub woofer volume
Equalizer
Extra-BASS
Volumen principal Volumen de subgraves
Ecualizador
Graves extra
SUB WOOFER
VOLUME
MIN MAX
DEMO
EQUALIZER
EQUALIZER
MODE

CD-C472/C3400/C3400C/C3800/C3800C
– 8 –
DISASSEMBLY
Caution on Disassembly
Follow the below-mentioned notes when disassembling
the unit and reassembling it, to keep it safe and ensure
excellent performance:
1. Take cassette tape and compact disc out of the unit.
2. Be sure to remove the power supply plug from the wall
outlet before starting to disassemble the unit.
3.Takeoffnylonbandsorwireholderswheretheyneedbe
removed when disassembling the unit. After servicing
theunit,be sure torearrangethe leadswherethey were
before disassembling.
4. Take suffcient care on static electricity of integrated
circuits and other circuits when servicing.
Figure 8-2
Figure 8-3
CD-C472/C3400/
C3400C/C3800/C3800C
1 Top Cabinet 1. Screw ..................... (A1) x4 8-1
2 Side Panel 1. Screw ..................... (B1) x6 8-1
(Left/right) 2. Screw ..................... (B2) x2
3 CD Player Unit/ 1. Turn on the power supply, 8-2
CD Tray Cover open the disc tray, take out
the CD cover, and close.
(Note 1)
2. Hook....................... (C1) x3
3. Hook....................... (C2) x2
4. Screw ..................... (C3) x1
5. Socket .................... (C4) x2
4 Back Board 1. Screw ..................... (D1) x9 8-2
2. Socke ..................... (D2) x1
5 Main PWB 1. Screw ..................... (E1) x1 9-1
2. Socket .................... (E2) x2
3. Flat Wire................. (E3) x1
4.Tip Wire................... (E4) x1
5.Socket ..................... (E5) x1
6 Front Panel 1. Screw ..................... (F1) x2 9-1
7 Display PWB/ 1. Socket .................... (G1) x1 9-2
Switch PWB 2. Screw ..................... (G2) x13
8 Tape Mechanism 1. Open the cassette holder. 9-2
2. Screw...................... (H1) x5
9 Power Amp. PWB 1. Screw ..................... (J1) x3 9-3
2. Socket .................... (J2) x2
10 Turntable 1. Screw ..................... (K1) x1 9-4
2. Cover ..................... (K2) x1
11 Disc Tray 1. Screw ..................... (L1) x2 9-4
2. Guide ..................... (L2) x2
12 CD Player Unit 1. Screw ..................... (M1) x1 9-5
2. Socket .................... (M2) x4
13 CD Changer 1. Screw ..................... (N1) x4 9-6
Mechanism 1. Screw
14 CD Mechanism 1. Screw ..................... (P1) x1 9-6
STEP REMOVAL PROCEDURE FIGURE
Note 1:
How to open the changer manually. (Fig. 8-3)
1. Insert the tip of fine screwdriver into the hole of CD player
base, and press down the worm wheel < A > .
2. Then, turn fully the lock lever in the arrow direction through
the hole on the loading chassis bottom in this state.
After that, push forward the CD player base.
CD-C472/C3400/
C3400C/C3800/C3800C
Figure 8-1
( B1 ) x2
ø3 x8mm
( B2 ) x2
ø3 x8mm ( B1 ) x2
ø3 x8mm
Top Cabinet
Side Panel
(Right)
Rear Panel

Side Panel
(Left)
( A1 ) x2
ø3 x12mm
( A1 ) x2
ø3 x12mm
CD Tray Cover
CD Player Unit
( D1 ) x2
ø3 x10mm
( D1 ) x7
ø3 x8mm
( C3 ) x1
ø3 x8mm
Hook
( C1) x3
( C2 ) x1
( D2 ) x1
( C4 ) x2
Back Board

Main PWB
Front Panel
1
1
2
A
Pull
(C2) x1
LOCK 
LEVER
< A >

– 9 –
CD-C472/C3400/C3400C/C3800/C3800C
Figure 9-1
Figure 9-2
Figure 9-3
Care when installing the CD changer mechanism.
InstalltheCDchangermechanismontheCDplayerbaseafter
the shift lever has been set in the highest position.
Figure 9-4
Figure 9-5
Figure 9-6
Display 
PWB
Switch PWB
Open
Front Panel
( G2 ) x3
ø3 x10mm
( G2 ) x10
ø3 x10mm
( H1 ) x5
ø3 x10mm
( G1 ) x1
Tape
Mechanism Cassette
Holder
(Left/Right)
( E2 ) x2

( E3 ) x1

(E5) x1

( E4 ) x1

( E1 ) x1
ø3 x10mm
( F1 ) x2
ø3 x8mm
Main PWB
Push
Push
Front Panel
Tape
Mechanism
Power Amp. 
PWB
( J1 ) x3
ø3 x12mm ( J2 ) x1
( J2 ) x1
Power Amp. 
PWB
Power 
Transfomer
( L1 ) x1
ø3 x10mm
( L1 ) x1
ø3 x10mm
( K1 ) x1
ø3 x10mm
Turntable
Disc Tray
( K2 ) x1
( L2 ) x1
( L2 ) x1
CD Player Unit
( M1 ) x1
ø3 x10mm
( M2 ) x2
( M2 ) x2 CD Player Unit
( N1 ) x4
ø3 x12mm
( P1 ) x1
ø2.6 x10mm
CD Changer
Mechanism
CD Mechanism
Shift Lever
CD Player Base

CD-C472/C3400/C3400C/C3800/C3800C
– 10 –
CP-C472
1 Front Speaker 1. Net.......................... (A1) x1 10-1
2. Front Panel ............ (A2) x1
3. Screw ..................... (A3) x2
4. Screw ..................... (A4) x4
STEP REMOVAL PROCEDURE FIGURE CP-C472
( A3 ) x2
ø3 x10mm
( A4 ) x4
ø3 x12mm
Screwdriver
Net
( A1 ) x1
Front Panel
( A2 ) x1
Woofer
Tweeter
Figure 10-1
Screwdriver
Woofer
Tweeter
Super
Tweeter
( A4 ) x4
ø4 x12mm
( A3 ) x2
ø3 x10 mm

( A1 ) x1
( A2 ) x1
Figure 10-2
CP-C3400/C3800
CP-SW472/SW3800
( A3 ) x4
ø3 x12mm
Net 
( A1 ) x1
( A2 ) x1 Screwdriver
Woofer
Figure 10-3
CP-C3400/C3800
1 Front Speaker 1. Net.......................... (A1) x1 10-2
2. Duct Panel ............. (A2) x1
3. Screw ..................... (A3) x2
4. Screw ..................... (A4) x4
STEP REMOVAL PROCEDURE FIGURE
CP-SW472/SW3800
1 Sub woofer 1. Net.......................... (A1) x1 10-3
2. Duct Panel ............. (A2) x1
3. Screw ..................... (A3) x4
STEP REMOVAL PROCEDURE FIGURE
Note:
The center and rear speakers can be easily disassembled.
Therefore the disassembling method is not discribed.
For details refer to the disassembling drawing in the Parts
Guide.

– 11 –
CD-C472/C3400/C3400C/C3800/C3800C
How to remove the pickup (See Fig. 11-2)
1.Removethescrews (B1) x2pcs., to removetheshaft(B2).
2. Remove the stop washer (B3) x 1 pc., to remove the gear
(B4).
3. Remove the pickup.
Figure 11-2
REMOVING AND REINSTALLING THE MAIN PARTS
CD MECHANISM SECTION
Perform steps 1, 2, 3, 13 and 14 of the disassembly method
to remove the CD mechanism.
How to remove the loading motor
(See Fig. 11-1)
1. Remove the screws (A1) x 2 pcs., to remove the loading
motor.
Figure 11-1
( A1 ) x2
ø2.6 x5mm
Loading / Up
/ Down Motor
Motor
PWB
( B1 ) x2
ø2.6 x6mm
Shaft
( B2 ) x1
Stop Washer
( B3 ) x1
Gear
( B4 ) x1
CD Mechanism
Pickup

CD-C472/C3400/C3400C/C3800/C3800C
– 12 –
MECHANISM SECTION
•Driving Force Check
Torque Meter Specified Value
Play: TW-2412 Tape 1: Over 80 g
Tape 2: Over 80 g
•Torque Check
Torque Meter
Tape 2
Play: TW-2111 30 to 60 g. cm 30 to 60 g.cm
Fast forward: TW-2231 — 60 to 120 g.cm
Rewind: TW-2231 — 60 to 120 g.cm
Specified
Value
Adjusting
Point Instrument Connection
Test Tape
Normal MTT-111 Volume in 3,000 ± Speaker
speed motor. 30 Hz terminal
(MM1) (Load
resistance:
8 ohms)
ADJUSTMENT
Specified Value
Tape 1
•Tape Speed
• AM IF/RF
Signal generator: 400 Hz, 30%, AM modulated
*1. Input: Antenna, Output: TP302
*2. Input: Antenna, Output: TP301
TUNER SECTION
fL: Low-range frequency
fH: High-renge frequency
IF 450 kHz 1,720 kHz T351 *1
Band — 530 kHz (fL): T302 *2
Coverage 1.1 ± 0.1 V
Tracking 990 kHz 990 kHz (fL): T302 *1
Test Stage Frequency Frequency
Display Setting/ Adjusting
Parts
Instrument
Connection
*1. Input: Antenna, Output: TP301
*2. Input: Antenna, Output: Speaker terminal
•FM RF
Signal generator: 1 kHz, 75 kHz dev., FM modulated
Band — 87.50 MHz L303(fL): *1
Coverage 3.4 V ± 50 mV
RF 98.00 MHz 98.00 MHz L302 *2
(10-30 dB)
Test Stage Instrument
Connection
Frequency Frequency
Display Serring/ Adjusting
Point
•Detection
Signal generator: 10.7 MHz, FM sweep generator
Detection 10.7 MHz 98.00 MHz T352 Input: Pin 1 of
IC303
Output: TP302
IF 10.7 MHz 98.00 MHz T301(Turn Input: Pin 1 of
the core of IC301
transformer Output: TP302
T352 fully
counter-
clookwise.)
Instrument
Connection
Test
Stage Adjusting Parts
Frequency
Display
Frequency
Adjusting
Parts Instrument Connection
Frequency
Display
Frequency
•VCO Frequency
* Adjust for 76 kHz ± 200 Hz.
Notes:
After preparing the test circuit shown in Fig 12-2, connect the
Pin 13 , Pin 21 and ground of the IC303 with test circuit, and
measure the Value.
At this time, apply a standard unmodulated signal input and
adjust the VCO.
Pin 13 of IC303 Pin 21 of IC303
D
G
S
10 kΩ
TO FREQUENCY
COUNTER
FET : 2SK19 or 2SK54
Figure 12-2
TAPE MECHANISM
MM 1
Motor
Volume in motor
98.00 MHz 98.00 MHz VR351* Pin 13, Pin 21
(60 dB) and ground
of IC303
Figure 12-1 ADJUSTMENT POINTS
IC301
IC303
MAIN PWB
13
1
1
21
FM BAND
COVERAGE fL T301
R316
L303
TP301
L302
T351
T352
TP302
R340
T302
VR351
VCO
AM IF
FM RF
FM DET
FM IF
AM TRACKING
fL
AM BAND
COVERAGE fL

– 13 –
CD-C472/C3400/C3400C/C3800/C3800C
TEST MODE
2
1
TO
TE
200 ms
1V/diV
IC 1 15
200 ms
1V/diV
IC 1 7
TRACKING/
ERROR
BARANCE
ADJUST
Figure 13-2 Figure 13-3
2
1
10ms
0.50 V
IC1 20 FE
10ms
0.50 V
IC1 7 TE
Enlarged
View
TRACKING
OFF-SET
ADJUST
Since this CD system incorporates the following automatic adjustment function, when the pickup is replaced, it is not necessary
to readjust it.
Since this CD unit does not need adjustment, the combination of PWB and laser pickup unit is not restricted.
• Automatic adjustment item
1. Focus offset (Fig. 13-2)
2. Tracking offset (Fig. 13-3)
3. E/F balance (tracking error balance) (Fig. 13-4)
4. RF level AGC function (HF level: constant)
5. RF level automatic follow-up of the tracking gain
This automatic adjustment is performed each time a disc is changed. Therefore,
each disc is played back using the optimal settings.
CD SECTION Figure 13-1
Note:
Only in STOP state it is possible to slide the pickup with the ( ) or ( ) key.
VOL. --- Last memory
BAL. --- CENTER
R.GEQ. --- FLAT
X-BAS --- OFF
Canceling method - POWER OFF
• Setting the test mode
Any one of test mode can be set by pressing several keys as follows.
<REC. PAUSE> + <DISC. SKIP> + <POWER> TEST: CD operation test
• TEST mode
Function — CD test mode
Setting of TEST mode
Indication of CD TST mode (Fig. 13-1)
OPEN/CLOSE operation is manual operation.
The pickup can be moved by using the ( ) or ( ) key.
<MEMORY>
LASER ON
<PLAY> key input Press <STOP> key. Stop
TOC. IL is performed, and the ordinary PLAY is performed.
If the following key is pressed during PLAY, it is possible
to specify directly any Track No.
<Disc Number 1> key: Track 4
<Disc Number 2> key: Track 9
<Disc Number 3> key: Track 15
<MEMORY>
Tracking on the spot.
SERVO OFF PLAY
<MEMORY>
Tracking on the spot.
SERVO ON PLAY STOP
2
0.1s
0.50 V
IC1 20 FE
0.1s
0.50 V
IC1 7 TE
1
FOCUS
OFF-SET
ADJUST
TRACKING
OFF-SET
ADJUST
Figure 13-4
IL is not performed.
<STOP>
1 2 3

CD-C472/C3400/C3400C/C3800/C3800C
– 14 –
SP out L-ch Input signal is output.
(SO901) R-ch Input signal is output.
(SO901) SP out C-ch SP cut, no output
(SO901) SP out S-ch Almost no output (only omitting component)
SP out L-ch Almost no output (only omitting component)
(SO901) R-ch Almost no output (only omitting component)
(SO901) SP out C-ch Input signal is output.
(SO901) SP out S-ch Almost no output (only omitting component)
State of set Dolby Pro Logic Dolby Pro Logic On mode
Output point Bypass mode Normal mode Phantom mode
IC501 12 pin L-out Output enabled state Output enabled state Output enabled state
11 pin R-out Output enabled state Output enabled state Output enabled state
IC501 9pin C-out No output Output enabled state No output
IC501 10pin S-out No output Output enabled state Output enabled state
SP OUT L-ch Output enabled state Output enabled state Output enabled state
(SO901) R-ch Output enabled state Output enabled state Output enabled state
SP OUT C-ch No output in MUTE (Q604) state Output enabled state No output in MUTE (Q604) state
(SO901)
SP OUT S-ch No output in MUTE (Q603) state Output enabled state Output enabled state
(SO901)
EXPLANATION OF DOLBY SURROUND PRO LOGIC AND EVALUATION METHOD
Test tone output
• Pro Logic ON Normal mode
Press the remote control TEST TONE button.
→Output of only L-ch →Output of only C-ch
↑ ↓
Output of only S-ch ←Output of only R-ch
The test tone (noise) is repeatedly output for output period
(2 sec).
In this case the following indication appears repeatedly.
→TEST →L-ch →C-ch
↑ ↓
S-ch ← R-ch
• Pro Logic ON Phantom mode
Press the remote control TEST TONE button.
→Output of only L-ch →Output of only R-ch
↑ ↓
←Output of only S-ch
The test tone (noise) is repeatedly output for output period
(2 sec).
In this case the following indication appears repeatedly.
→TEST → L-ch → R-ch
↑↓
←S-ch←
Outline
• Namely, two speakers are connected in parallel to one
amplifier.
•IntheProLogicBYPASSmodetheamplifierforC-ch(center
channel)andtheamplifierforS-ch(surroundchannel)arein
MUTE state. The SP output is cut.
• In the normal mode of Pro Logic ON mode the amplifiers for
C-ch and S-ch are in operative state, so that the SP output
appears.
•InthePhantommodeofPro LogicON modetheamplifierfor
C-ch is in MUTE state, so that the SP output is cut. The
amplifierforS-ch(surround) is inoperativestate,so that the
SP output appears
•State of element output and terminal output in specific mode
Relation between VIDEO IN input and output in Pro Logic
ON state
(1) L-ch/R-ch same phase input into VIDEO IN input jack in
VIDEO Function mode
Output point Normal mode
Output point Phantom mode
(2) L-ch/R-ch reverse phase input into VIDEO IN input jack in
VIDEO Function mode
(Reverse phase: Phase difference between L and R is 180°)
Output point Normal mode
SP out L-ch Almost no output (only omitting component)
(SO901) R-ch Almost no output (only omitting component)
(SO901) SP out C-ch Almost no output (only omitting component)
(SO901) SP out S-ch Input signal is output.
Output point Phantom mode
SP out L-ch Almost no output (only omitting component)
(SO901) R-ch Almost no output (only omitting component)
(SO901) SP out C-ch SP cut, no output
(SO901) SP out S-ch Input signal is output.
•Accordingly,ifyouwanttooutputsignalwaveformtoC-chSP
out, give the same phase input into L-ch/R-ch INPUT in the
Pro Logic Normal mode.
Ifoneofchannelsreceivesinput,C-chdoesnotoutput. Only
L-ch or R-ch outputs.
•IfyouwanttooutputsignalwaveformtoS-chSPout,youcan
use either Normal mode or Phantom mode. However, 180°
reverse phase input must be given to L-ch/R-ch INPUT.

– 15 –
CD-C472/C3400/C3400C/C3800/C3800C
•The indicated voltage in each section is the one measured
by Digital Multimeter between such a section and the chas-
sis with no signal given.
1. In the tuner section,
( ) indicates AM
< > indicates FM stereo
2. In the main section, a tape is being played back.
3. In the deck section, a tape is being played back.
( ) indicates the record state.
4. In the power section, a tape is being played back.
5. In the CD section, the CD is stopped.
•Parts marked with “ ” ( ) are important for
maintaining the safety of the set. Be sure to replace these
parts with specified ones for maintaining the safety and
performance of the set.
NOTES ON SCHEMATIC DIAGRAM
•Resistor:
To differentiate the units of resistors, such symbol as K and
M are used: the symbol K means 1000 ohm and the symbol
M means 1000 kohm and the resistor without any symbol is
ohm-type resistor. Besides, the one with “Fusible” is a fuse
type.
•Capacitor:
To indicate the unit of capacitor, a symbol P is used: this
symbol P means micro-micro-farad and the unit of the
capacitor without such a symbol is microfarad. As to
electrolyticcapacitor,theexpression“capacitance/withstand
voltage” is used.
(CH), (TH), (RH), (UJ): Temperature compensation
(ML): Mylar type
(P.P.): Polypropylene type
•Schematic diagram and Wiring Side of P.W.Board for this
model are subject to change for improvement without prior
notice.
REF. NO DESCRIPTION POSITION POSITION
SW716 TUNING DOWN ON—OFF
SW717 POWER ON—OFF
SW718 CLOCK ON—OFF
SW719 TIMER/SLEEP ON—OFF
SW720 MEMORY/SET ON—OFF
SW721 CD ON—OFF
SW722 TUNER/BAND ON—OFF
SW723 TAPE ON—OFF
SW724 VIDEO/AUX ON—OFF
SW725 PASS ON—OFF
SW726 NORMAL ON—OFF
SW727 PHANTOM ON—OFF
SW728 CD PAUSE ON—OFF
SW729 CD CLEAR ON—OFF
SW730 RANDOM ON—OFF
SWM 3 FOOL PROOF ON—OFF
SWM 4 F.A.S. ON—OFF
SWM 5 CAM ON—OFF
REF. NO DESCRIPTION
SW1 OPEN/CLOSE ON—OFF
SW2 MECHA UP ON—OFF
SW3 DISC NUMBER ON—OFF
SW4 PICKUP IN ON—OFF
SW701 EQUALIZER/DEMO ON—OFF
SW702 VOLUME DOWN ON—OFF
SW703 X-BASS ON—OFF
SW704 VOLUME UP ON—OFF
SW705 OPEN/CLOSE ON—OFF
SW706 DISC SKIP ON—OFF
SW707 DISC 1 ON—OFF
SW708 DISC 2 ON—OFF
SW709 DISC 3 ON—OFF
SW710 REC. PAUSE ON—OFF
SW711 UP ON—OFF
SW712 STOP ON—OFF
SW713 PLAY ON—OFF
SW714 DOWN ON—OFF
SW715 TUNING UP ON—OFF
2SA1015 GR
2SC535 C
2SD468 C
KRA102 M
KRA109 M
KRC102 M
KRC104 M
KRC107 M
KTA1266 GR
KTA1271 Y
KTC3199 GR
KTC3200 GR
KTC3203 Y
ECB
(S)(G)(D)
(1) (2) (3)
FRONT
VIEW
BCE
(D)(G)(S)
(3) (2) (1)
FRONT
VIEW
2SD2012
Figure 15 TYPES OF TRANSISTOR

CD-C472/C3400/C3400C/C3800/C3800C
– 16 –
WAVEFORMS OF CD CIRCUIT
3
5ms
0.50 V
IC1 20 F.E
1
5ms
5.0 V
IC1 54 DRF
STOP PLAY
FOCUS SERCH
1
3
5
4
2
6
7
8
9
10
11
3
4
5
6
7
8
9
6
7
8
10
11
12
9
6
7
8
9
12
0.5ms
1.00 V
HF
0.5ms
5.0 V
HFL
0.5ms
5.0 V
TES
1
2
3
CUE
0.5ms
1.00 V
HF
1
2
3
0.5ms
5.0 V
HFL
0.5ms
5.0 V
TES
REVIEW
50ms
10.0 V
JP+
CUE
50ms
10.0 V
JP-
50ms
0.50 V
JP
50ms
1.00 V
TE
0.5ms
10.0 V
JP+
0.5ms
10.0 V
JP-
0.5ms
0.50 V
JP
0.5ms
1.00 V
TE
REVIEW
50ms
10.0 V
JP+
50ms
10.0 V
JP-
50ms
0.50 V
JP
50ms
1.00 V
TE
0.5ms
10.0 V
JP+
0.5ms
10.0 V
JP-
0.5ms
0.50 V
JP
0.5ms
1.00 V
TE
PLAY
20ms
1.00 V
SPO
NORMAL DISC
TN0=01
20ms
2.00 V
CLV+
PLAY
TCD-712 (140mm)
TN0=01
50ms
1.00 V
SPO
50ms
2.00 V
CLV+
PLAY
TCD-712
5s
100mV
SLD
1
0.5s
100mV
SLD
1

– 17 –
CD-C472/C3400/C3400C/C3800/C3800C
Figure 17 BLOCK DIAGRAM (1/3)
1
2
3
4
5
98
6
7
20
12
13
24 25 30
31
3222
34
35 36
10 11
27 26
28 29
PU-IN SW
XL1
XIN
LD0
FIN2 JP–
CV+
SLC
SL1
FIN1 E F
TO
FD
SPO
NC
SLD
SL–
SL+
DRF
CL
DAT
CE
VCC1
6
+5V
PICKUP IN
SW4
FOCUS COIL
TRACKING COIL
M1
DISC
MOTOR
M
M
M2
SLIDE
MOTOR
PICKUP UNIT
9
IC2
LC78623D
SERVO/SIGNAL
CONTROL
+B1
IC3
M56748FP
DRIVER
IC1
LA9241M
SERVO AMP.
6
1
95
+B1
+12V(+B5)
( TO IC601 )
RES. CQCK. COIN SQOUT. RWC. WRQ
~
~
~
CL, DAT, SELIAL CONTROL/CE Q93
Q91
SL+. SL–. DRF
7
3
9
8
7
6
5
4
3
2
1
GND (D) MECHA UP GND (D) DISK NO. OPEN/CLOSE GND (D) M– M+ GND (M)
9
8
7
6
5
4
3
2
1
CNP10
M
+5V
+B1
62 64 45 3623 43
37
38 39
40 24 25
10 10
265853
10 12 20
32 40 43 44
5352515431302923271615
4144
Q1 Q52
+4.3V Q81 +7.3V (B1)
REGULATOR
TO MAIN SECTION
IC81
TA7291S
LORDING MOTOR
DRIVER
XOUT
EFMO EFMIN CLV+ JP–
CONT2 CONT1
RCHO
RVSS
LVSS
LCHO
VVDD
VDD
LVDD
RVDD
XVDD
SW1 OPEN/CLOSE
SW2 MECHA UP SW3 DISC No.
M3 LOADING
SOLM1
TO DISPLAY SECTION
CNS10

CD-C472/C3400/C3400C/C3800/C3800C
– 18 –
Figure 18 BLOCK DIAGRAM (2/3)
J501
VIDEO/AU
X
L
R
L-CH
R-CH
PB HEAD 1
2
3
4
L NF
L (T1)
R (T1)
L (T2)
R (T2)
R NF
4
5
13
21
24
23
18
17
10
1915
12
14
16
20
H/N
67
8
9
T1/T2
POP REDUCE
L REC
R REC R NF
REC
L NF
P.B.
REC
L-CH
R-CH
REC/PB
HEAD
ERASE
HEAD
BIAS
OCS
REF ALC
HIGH
NOR/ T1/T2
1GND
345
1
X352
4.5MHz
OSC
7
STEREO
FM/AM
SWITCHING
ST
ST
1
23457 8
6
FM IF
OSC BUFF
AM IF
FM IF IN
VT
FM RF FM OSC
FM
OSC
FM IN
AMIN
FM
5
3
AM MIX AM IF 6
9
FM/AM
FM+B
21 20 13 15
10
111617
DET OUT MPX IN
24 2223
AM OSC IN
AM+B
AM RF IN
FM DET VCO
FM DET
MO/ST
+B4
9
AM TRACKING
AM BAND
COVERAGE
+B4
L
R
PLAYBACK&RECORD/
PLAYBACK AMP.
IC101
AN7345K
L
RP.B
IC301
FM FRONT END
TA7358AP
FM BPF
FM/AM IF
IC303
LA1805
TA
P
A
TU
C
D
FROM CD SECTION
Q128
L104 Q124 Q126 BIAS
Q103
Q106
~
P.BREC
AC BIAS
Q107
Q108 Q111
Q109 Q110
T1/T2
MUTING
Q121
Q122 REC
+B4
L
R
Q344
7
6
CE
DI
CL
DO
22
10
20 15 16
21
17
11
Q343
T351 T352
VR351
CF301
T301
L303
Q302
L302
T302
AM ANT.
IC302
LC72131
PLL CONTROLLER
FM
MPX VCO ADJ
TAPE 1
TAPE 2
R
L
FM OSC
BF301
SWITCHING
SWITCHING
SWITCHING
SWITCHING
SWITCHING
FM&AM LOOP ANT
VOLTAGE
REGURATER
+
B
SWITCHING BIAS
FM +B
RT-IN LT-IN L-OUT R-OUT
CL
+B4
CL
DATA
DATA
ENABLE
X501
8
18 45 44 23 24
IC501
LV1035M
DOLBY PRO LOGIC
DECORDER
38
35
37
36
42 33 31 32
34
21

– 19 –
CD-C472/C3400/C3400C/C3800/C3800C
Figure 19 BLOCK DIAGRAM (3/3)
13
4
4
3
11
STAND-BY
L
J501
VIDEO/AUX
R
L
R
R
REAR-OUT
CENTER
OUT
FM/AM
S
WITCHING
ST FM
9
A
M
10
MONO/ST
S
T
FM
92
5
12
14
REAR-IN
CENTER-IN
7VCC
14
NF
8
+12V (ANALOG)
+B4
+12V (MOTOR)
+5.6V
+B5
+B1
L
R
OUT
IC951
LA4451
POWER AMP.
+B4
PRESET GRAPHIC EQUALIZER
VDD
X-BASS
VSS
GRAPHIC EQUALIZER
VOLUME
20
28
REAR
CENTER
R
R
L
L
L
TAPE
AUX
TUNER
CD
7
Q343
VOLTAGE
REGULATOR
VOLTAGE
REGULATOR
VOLTAGE
REGULATOR
+B1
+
–SUB WOOFER
+
–
+
–
+
–
REAR SPEAKER
CENTER SPEAKER
JA901
HEADPHONES
M901
FAN MOTOR
+7.3V Q820
Q822
Q824
Q825
Q823
Q826
IC601
LC75396E
AUDIO PROCESSOR
23
52
60
53
59
54
58
55
57
49 6348 64 26
4
42
5
43
6
44
24 25 56
CL
DI
CE
V
OLTAGE
E
GURATER
+B4
25
27
29
30
33
34
35
36
37
38
39
40
42 41434445464748495051 4352535455565859
60
65
70
57
2423222120191817
80
72
71
16151413121110
9
~
6
1
~
~
~
78
3RX701
Q707~
Q709
LED701~
LED706
2
1
SYSTEM STOP
DO
DRF
DI
DE
CL
RESET
XL701
4.19MHz
AVDD
AVREF VDD
+B2
KEY
SW701
SW730
TO POWER SECTION
+B5
PHM1
RESET
Q705
Q706
ZD701
MEMORY
BACK UP
+B2
3
2
1~
3330 31 32
Q701
+B2
+B1
UNSWITCH
FL701
DISPLAY
~
61
64
~
POWER
C-MUTE
T.F
AC 120V 60Hz
AC POWER
SUPPLY CORD
VOLTAGE
REGULATOR
Q801
Q903
Q901 Q902
Q710
D807
D809
~
D803 ~ D806
ZD801
Q704
IC701
IX0192AW
SYSTEM CONTROL
MICROCOMPUTER
TO CD SECTION
TO CD SECTION
TO CD SECTION
TO CD SECTION
16
19
34
8
4
35
L-OUT
FRONT
R-OUT
SUB-WOOFER OUT
SUB-WOOFER
IN
12
18
1
R-IN
FRONT
L-IN
VR701
SUB WOOFER
VOLUME
–B +B
+B4
IC901
STK40724
POWER AMP.
IC451
NJM4558L
SUB WOOFER AMP.
D801
D802
12
39
9
36
11
40
8
37
10
41
7
38
+
–
+
–FRONT SPEAKER
SO901
SPEAKER TERMINAL
CD PUIN
CD SL+
CD SL–
VDD
TAPE SOL
TAPE MOTOR
TAPE MECHASTOP
TAPE FP
R MUTE
D.P.CE
T1 RUN PLSE
SOLM1
SOLENOID
SWM5
CAM
SWM4
F. A. S
SWM3
FOOL PROOF
L-CH INPUT
R-CH INPUT
T2 RRUN PLSE CD UP DOWN/DISC NO
CD DSP RES
CD T/T OPEN/CLOSE
RESET CD DSP SQOUT CD DSP COIN CD DSP RWC
CD DSP CQCK
CD DSP WRQ T1/T2 TAPE REC TAPE BIAS
Q603
Q604 Q601 Q602
F-MUTE F-MUTE
3018
LRIN
RRIN
RTIN
LTIN
17
31
R
L
L-OUT R-OUT
X501
23 24
OGIC
E
R
22
9
31 32
S- OUT
C-OUT
7
3
51 7
IC681
NJM4560L
HEADPHONE AMP.
Q905Q605
M
Q671 Q672
Q673 Q674
H/P MUTE
+B1
+
–
9
8
20
Q705
Q706
Q904

CD-C472/C3400/C3400C/C3800/C3800C
– 20 –
Figure 20 SCHEMATIC DIAGRAM (1/10)
A
B
C
D
E
F
G
H
123456
• NOTES ON SCHEMATIC DIAGRAM can be found on page 15.
1
2
3
4
5
5
4
3
2
1
8
7
1
5
4
3
2
1
6
5
4
3
2
8
7
2
3
4
5
6
8
7
2
3
4
5
6
M
M
11
6
5
4
3
2
1
6
5
4
3
2
1
6
5
4
3
2
1
6
5
4
3
2
1
8
7
6
5
4
3
2
1
5
4
3
2
1
2200P
1M
2200P
1M
PD
VR
LD
TR–
TR+
FO+
FO–
GND
PD
VR
LD
TR–
TR+
FO+
FO–
GND
PICKUP UNIT
ACTUATOR
TR–
FO–
FO+
TR+
LD GND
LT0H30M1
C
F
A
B
E
K
LD MON
CD MOTOR PWB-E
–
+
–
+
CNP12
C33 0.47/50
C34 0.33/50
R21 22K
R22 22K
D1
1SS1
3
R37
82K
R26 82K
C13 330P
IC1
LA9241M
SERVO AMP.
R45 4.7K
R38
470
R46 560
C2
0.01
C1 100/16
R2
1K
C12
0.1
R14
27K
R13
1K C9 0.047
D2 RL104A
D4
RL104A
C84
0.001
R12
100
C7
0.1/50
C8
0.068
C10
180P
R15
12K
R16
3.3K
C18 0.47/50
R31
1.2K
C26
0.033
R40
5.6K
C24
2.2P
C27 0.001
C30 0.1/50
C31 220/6.3
C32 0.01
R32
10K
R33
1.2K
C19 1/50
C20 47/16
R36
220K
C21 0.0033
R35
220K
D3 RL104A
C11
0.1 R18
15K
R1
22
C35
1/50
C4
0.1/50
C14
0.01
C28
0.1
C29 4.7/50
R17
33K
R24
47K
R23 10K
R25
1.5K
R27
39K
C16 0.0047
R9 100K
R8
15K
C54 0.001
C5
0.033
R10
2.2K C6
0.033
R11
6.8K
IC3
M56748FP
FOCUS/TRACKING/SPIN/SLIDE DRIVER
C36
100/16
R48
10K
R34
22K
C3 1/50
R19 1K
R20 1K
R30
6.8K
C17 0.001
R29 56K R28 10K
R42
47K
R44
33K
R43
56K
R41
47K
C15
0.01
R3
9
1K
C25
27P
Q1
KTA1266 GR
12
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
17
18
16
9
6
15
14
13
12
11
10
8
7
5
4
3
2
1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49505152535455565758596061626364
CD_PUIN
SL_–
SL_+
SP–
SP+
WRQ(DSP) RWC(DSP)
CD_GND
TP1
HF
FE1
SLOF SLOF
FSC
FOSTA
TE
F
E
B
A
K
K
E
B
A
F
K
E
B
A
F
4.2V
1.5V 4.8V
CV+
CV–
SLOF
HFL
TES
TOFF
TGL
JP+
JP–
RFSM
RFS–
SLC
RF
REF
OR
REF
REF
REF
REF
SL+ SL– SLD SLEO SPO SP– SPG SPI SP AGND FE– FE FA FA– FD–
GEN
GEN
GEN
FD
TO
JP
TD–
TD
TH
REF
JP
REF
TO
REF
REF
REF
REF
REF
REF
REF
REF
REF
REF
REF
SCI
TESI
TE
TE–
TB
F
E
FIN1
FIN2
VCC1
LDS
BHI PHI
LF2
VR
REF1
VCC2
DRF
CE
DAT
CL
CLK
DEF
SLI
DGND
REF
LDO
RF
REF
REF FE1
VCR VCR
VCR
VCR
TGL1
THDL
GL
THD
VCC
DEF
HFL
DRF
CE
CL
SLOF
FSTA
LATOH
TOSTA
FOSTA
S.Q.R
FSTA
8/12CM
LASER
2FREQ
JP+
JP–
CV+
CV–
REF
REF
JP
REF
-
+
EFBAL
FSC
SLOF
JPCLO
FSS
TBC
CNS1B
CNS1A
CNS2B CNS2A
CNP3A CNS3B CNS3A
M1
DISC
MOTOR
M2
SLIDE
MOTOR
SW4
PICKUP
IN
CNP3
CNP2
CNP1
+B +B
+B
+
–+
–
+
–
+
–
+
–
+
–+
–
+
–
+
–
+
–
+
–
+
–
+
–
+
–
+
–
+
–
+
–
+
–
+
–
+
–
+
–
+
–
+
–
+
–
+
–
+
–+
–
+
–
+
–
+
–
2.5V
2.5V
2.5V
2.5V
2.5V
2.5V
2.4V
2.5V
2.5V
2.5V
2.5V
2.4V
2.5V
2.5V
2.4V
2.4V
0V
2.2V 2.2V 2.5V 2.5V 2.5V
2.5V 2.5V
2.5V
2.5V
0V
2.5V 2.4V 2.5V 2.5V 2.5V
0V
0V
4.8V
0V
0V
4.8V
4.8V
0V
1.5V
2.4V
2.5V
2.4V
0V
2.5V
0V
2.5V
4.8V
0V
2.2V 1V 1V 2.5V 2.5V 4.8V 0V 0V 4V 4V 2.4V 0V
4.2V
4.8V
4.7V
0V
0V
0V
2V
2.5V
2.5V
2V
2V
0V
0V
0V
2V
2.5V
2.5V
0V
2.5V
2.5V
4.7V
0.7V
2.5V
0V
1.8V
2.5V
2.5V
2V
2V
0V
0V
0V
1.8V
2.5V
2.5V
0V
0V
0V
10 5
4
3
2
9
6
7
1
8