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CD-C405W/CD-C420H/CP-C410/CP-C405/CP-SR421

SERVICE MANUAL
No. S5733CDC405W/

Illustration: CD-C405W/CP-C405

CD-C405W CD-C420H CP-C405 CP-C410 CP-SR421
CD-C405W and CP-C405 constitute CD-C405W. CD-C420H and CP-C410 and CP-SR421 constitute CDC405W.
· In the interests of user-safety the set should be restored to its original condition and only parts identical to those specified be used.

Illustration: CD-C420H/CP-C410/CP-SR401

CONTENTS
Page
SPECIFICATIONS ............................................................................................................................................................. 2 VOLTAGE SELECTION (CD-C405W ONLY) .................................................................................................................... 2 NAMES OF PARTS ........................................................................................................................................................... 3 OPERATION MANUAL ...................................................................................................................................................... 5 DISASSEMBLY .................................................................................................................................................................. 6 REMOVING AND REINSTALLING THE MAIN PARTS ..................................................................................................... 9 ADJUSTMENT .................................................................................................................................................................. 10 NOTES ON SCHEMATIC DIAGRAM ............................................................................................................................... 12 BLOCK DIAGRAM ............................................................................................................................................................ 13 SCHEMATIC DIAGRAM / WIRING SIDE OF P.W.BOARD .............................................................................................. 16 WAVEFORMS OF CD CIRCUIT ....................................................................................................................................... 30 TROUBLESHOOTING (CD CHANGER CONTROL / CD SECTION) ............................................................................... 31 FUNCTION TABLE OF IC ................................................................................................................................................ 35 FL DISPLAY ...................................................................................................................................................................... 41 REPLACEMENT PARTS LIST/EXPLODED VIEW

SHARP CORPORATION ­1­

CD-C405W/CD-C420H/CP-C410/CP-C405/CP-SR421
FOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT, PLEASE REFER TO THE OPERATION MANUAL.

SPECIFICATIONS
CD-C405W/CD-C420H CD-C405

General
Power source: (CD-C405W) Power source: (CD-C420H) Power consumption: Dimensions: AC 110/127/220/230 - 240 V, 50/60 Hz AC 230 V, 50 Hz 65 W Width; 270 mm (10-5/8") Height; 300 mm (11-13/16") Depth; 359.5 mm (14-3/16") 5.0 kg (11.0 lbs.)

Speaker section
Type: 2-way type [10 cm (4") woofer and super tweeter] Maximum input power: 20 W Impedance: 8 ohms Dimensions: Width; 180 mm (7-1/8") Height; 300 mm (11-13/16") Depth; 214 mm (8-7/16") Weight: 2.4 kg (5.3 lbs.)/each

Weight:

Amplifier section
Output power: PMPO; 160 W (total) MPO; 34 W (17 W + 17 W)(10 % T.H.D.) RMS; 20 W (10 W + 10 W)(10 % T.H.D.) Speakers; 8 ohms Headphones; 16-50 ohms (recommended; 32 ohms) Front speakers; 8 ohms Rear speakers; 16 ohms Headphones; 16-50 ohms (recommended; 32 ohms) Video/Auxiliary (audio signal); 245 mV/47 kohms

CP-C410

Front speaker section
Frequency response: Maximum input power: Impedance: Dimensions: 100 MM (4") full-range speaker 20W 8 ohms Width; 180 mm (7-1/8") Height; 300 mm (11-13/16") Depth; 204 mm (8") 2.1 kg (4.6 lbs.)/each

Output terminals: (CD-C405W) Output terminals: (CD-C420H)

Weight:

Input terminals:

CP-SR421

Rear speaker section
Type: Maximum input power: Impedance: Dimensions: 100 mm (4") full-range speaker 10 W 16 ohms Width; 170 mm (6-11/16") Height; 120 mm (4-3/4") Depth; 175 mm (6-7/8") 0.6 kg (1.3 lbs.)/each

Tuner section
Frequency range: (CD-C405W) Frequency range: (CD-C420H) FM; 88 - 108 MHz AM; 531 - 1,602 kHz FM; 87.5 - 108 MHz AM; 522 - 1,620 kHz

Weight:

Compact disc player section
Type: Signal readout: D/A Converter: Frequency response: Dynamic range: 3-disc multi-play compact disc player Non-contact, 3-beam semi-con-ductor laser pickup 1-bit D/A converter 20 - 20,000 Hz 90 dB (1 kHz) Specifications for this model are subject to change without prior notice.

Cassette deck section
Frequency response: Signal/noise ratio: Wow and flutter: 50 - 14,000 Hz (Normal tape) 55 dB (TAPE 1, playback) 50 dB (TAPE 2, recording/playback) 0.15 % (WRMS)

VOLTAGE SELECTION (CD-C405W)
Before operating the unit on mains, check the preset voltage. If the votage is different from your local voltage. Slide the AC power supply socket cover by slightly loosing the screw to the visible indication of the side of your local voltage.

­2­

CD-C405W/CD-C420H/CP-C410/CP-C405/CP-SR421

NAMES OF PARTS
CD-C405W/CD-C420H Front Panel 1. Disc Tray

1

2. Disc Number Indicator 3. Timer Indicator 4. Record Indicator 5. Sleep Indicator 6. Extra Bass Indicator: X-BASS 7. Function/CD Track/CD Counter/Frequency/Preset Channel/Volume/Timer/Sleep Time Indicator 8. Memory Indicator 9. FM Stereo Mode Indicator: ST 10. FM Stereo Indicator: 11. CD Play Indicator: 12. CD Repeat Indicator: 13. CD Pause Indicator:

2
1 2 3

34 5
REC
SLEEP

6
X-BASS

7

11 12 13

8 9 10
MEMORY ST
kHz MHz

14. Power Switch 15. Extra Bass/Equalizer Mode Button 16. Volume Up/Down Buttons: 17. Random/Demo Button 18. Clock Button 19. Timer/Sleep Button 20. Function Selector Buttons 21. Memory/Set Button 22. Tuning and Time Up/Down Buttons: 23. Track Down/Review/Preset Down Button: 24. Play/Repeat Button: 25. Stop Button: 26. Track Up/Cue/Preset Up Button: 27. Disc Skip Button 28. Open/Close Button: 29. Record Pause Button: 30. Headphone Socket 31. (TAPE 1) Cassette Compartment 32. (TAPE 2) Cassette Compartment

14 18 19 20 21 22

15 16 17

23 24 25 26 27 28 29 30

31

32

CD-C405W Rear Panel 1. Video/Auxiliary (Audio Signal) Input Sockets 2. Speaker Terminals 3. AC Voltage Selector 4. AC Power Lead 5. Span Selector Switch 6. FM 75 Ohms Aerial Terminal 7. Aerial Earth Terminal 8. AM aerial Terminal

1 2 3 4
­3­

5 6 7 8

CD-C405W/CD-C420H/CP-C410/CP-C405/CP-SR421
CD-C420H Rear Panel 1. Speaker Terminals 2. AC Power Lead 3. Video/Auxiliary (Audio Signal) Input Sockets 4. FM 75 Ohms Aerial Socket 5. AM Loop Aerial Socket

1 2

3 4 5

CP-C410 Speaker Section 6. Full Range Speaker 7. Speaker Wire

6

CP-SR421 Speaker Section 8. Full Range Speaker 9. Speaker Wire

7 8 9

CP-C405 Speaker Section 10. Super Tweeter 11. Woofer 12. Speaker Wire

10 11 12
1

CD-C405W/CD-C420H Remote Control 1. remote Control Transmitter LED CD Control section 2. Disc Number Select Buttons 3. Track Down/Review Button: 4. Track Up/Cue Button: 5. Disc Skip Button 6. Play/Repeat Button: 7. Stop Button: 8. Memory Button 9. Clear Button 10. Random Button 11. Pause Button: Tuner control section 12. Preset Up/Down Buttons: Tape control section 13. (TAPE 1/2) Stop Button: 14. (TAPE 1) Play Button: 15. (TAPE 2) Record Pause Button: 16. (TAPE 2) Play Button: 17. (TAPE 2) Rewind Button: 18. (TAPE 2) Fast Forward Button: 19. Function Selector Buttons 20. Extra Bass/Equalizer Mode Button 21. Power Button 22. Volume Up/Down Buttons:
­4­

2 3 4 8 13 14 15 19 21 9 10 11 12

5 6 7

16 17 18 20

22

SETTING THE CLOCK PREPARATION FOR USE

Press the ON/STAND-BY switch to enter the stand-by mode.

In this example, the clock is set for the 24-hour (0:00) system. or ) button to select the time

Press the CLOCK button.

ON/ STAND-BY
0.2 m - 6 m (8" - 20')

1 2 3 4
Notes concerning use: Replace the batteries if control distance decreases or operation becomes erratic. Periodically clean the transmitter LED on the remote control and the sensor on the main unit with a soft cloth. Exposing the sensor on the main unit to strong light may interfere with operation. Change the lighting or the direction of the unit. Keep the remote control away from moisture, excessive heat, shock, and vibrations.
15
15

Within 3 seconds, press the MEMORY/SET button.

Press the TUNING/TIME ( display.

CLOCK

"0:00"

MEMORY/ SET

The 24-hour display will appear. (0:00 - 23:59) "AM 0:00" The 12-hour display will appear. (AM 0:00 - PM 11:59) "AM 12:00" The 12-hour display will appear. (AM 12:00 - PM 11:59)

TUNING/TIME ( )

5 6

Press the MEMORY/SET button.

2
RESETTING THE MICROCOMPUTER

3
1 2

Press the TUNING/TIME ( or ) button to adjust the hour. Press the TUNING/TIME button once to advance the time by 1 hour. Press for more than 0.5 seconds to advance continuously. When the 12-hour display is selected, "AM" will change automatically to "PM".

4

7 8
Reset the microcomputer under the following conditions:To erase all of the stored memory contents (clock and timer settings, tuner and CD presets). If the display is not correct. If the operation is not correct.

Press the MEMORY/SET button.

Press the ON/STAND-BY (POWER) switch to enter the standby mode. Press and hold down the VOLUME button, the button and the ON/STAND-BY (POWER) switch all at the same time. Hold them for at least 1 second.

0:00

AM 0:00

AM 12:00

Press the TUNING/TIME ( or ) button to adjust the minutes. Press the button for at least 0.5 seconds to change the time in 5 minute intervals. The hour setting will not advance even if minutes advance from "59" to "00".

5

9

OPERATION MANUAL

CD-C405W/CD-C420H/CP-C410/CP-C405/CP-SR421

­5­

6

7

Press 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 lead 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 lead was disconnected. If this happens follow the procedure below to change the clock time.

8

To change the clock time:

9

1 Press the MEMORY/SET button. 2 Perform steps 6 - 9 above.

When the ON/STAND-BY switch is set to STAND-BY.

1 Press the CLOCK button. 2 Within 3 seconds, press the MEMORY/SET button. 3 Perform steps 6 - 9 above.

When the ON/STAND-BY switch is set to ON.

To see the time display: (When the power is ON)

Press the CLOCK button.

The time display will appear for about 3 seconds.

To switch the time display mode:

1 2

Press the ON/STAND-BY switch to enter the stand-by mode.

Press and hold down the VOLUME button, the button and the ON/STAND-BY switch all at the same time. Hold them for at least 2 second. (Refer to RESETTING THE MICROCOMPUTER on page 16.)

3

Perform steps 1 - 9 above.

Note: The operation explained above will erase all data stored in memory, such as clock and timer settings, tuner and CD presets.

CD-C405W/CD-C420H/CP-C410/CP-C405/CP-SR421

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. Take off nylon bands or wire holders where they need be removed when disassembling the unit. After servicing the unit, be sure to rearrange the leads where they were before disassembling. 4. Take sufficient care on static electricity of integrated circuits and other circuits when servicing. CD-C405W/CD-C420H
STEP 1 2 3 REMOVAL Top Cabinet Side Panel (Left/right) CD Player Unit/ CD Tray Cover PROCEDURE 1. Screw ..................... (A1) x4 1. Screw ..................... (B1) x6 1. Turn on the power supply, open the disc tray, take out the CD cover, and close. (Note 1) 2. Hook ....................... (C1) x3 3. Hook ....................... (C2) x2 4. Socket .................... (C3) x4 1. Screw ..................... (D1) x5 2. Screw ..................... (D2) x1 FIGURE 6-1 6-1 6-2
Hook ( C2 ) x1 Push Driver

CD-C405W/CD-C420H
( A1 ) x2 ø3 x12mm

Illustration: CD-C405W
Top Cabinet

Side Panel (Right) ( B1 ) x1 ø3 x12mm

( A1 ) x2 ø3 x12mm

( B1 ) x2 ø3 x12mm ( B1 ) x2 ø3 x12mm ( B1 ) x1 ø3 x12mm

Side Panel (Left)

Figure 6-1
CD Tray Cover Hook ( C1) x3

4 5

Back Board

6-2 7-1

CD Player Unit
Hook ( C2 ) x1 Push Driver

Main PWB/ 1. Screw ..................... (E1) x12 Display PWB/ 2. Socket .................... (E2) x4 Headphone PWB Front Panel 1. Screw ..................... (F1) x2 2. Hook ....................... (F2) x2

6 7 8 9 10 11

7-1 7-2

Tape Mechanism 1. Open the cassette holder. 2. Screw...................... (G1) x6 Turntable Disc Tray CD Changer Mechanism CD Mechanism 1. Screw ..................... (H1) x1 2. Cover ...................... (H2) x1 1. Screw ..................... (J1) x2 2. Guide ...................... (J2) x2 1. Screw ..................... (K1) x4 1. Screw ..................... (L1) x1

( C3 ) x1
7-3 7-3 7-4 7-4

( D1 ) x5 ø3 x12mm ( D2 ) x1 ø3 x8mm Back Board

( C3 ) x3

Figure 6-2


Note 1: How to open the changer manually. (Fig. 6-3) 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. CP-C410
STEP 1 REMOVAL Speaker PROCEDURE 1. Front panel ............. (A1) x1 2. Screw ..................... (A2) x4 FIGURE 7-5 7-6
LOCK LEVER

CP-SR421
STEP 1 REMOVAL Top cabinet PROCEDURE 1. Screw ..................... (B1) x6 FIGURE 8-1

CP-C405
STEP 1 REMOVAL Speaker PROCEDURE 1. Front panel ............. (C1) x1 2. Screw ..................... (C2) x4 FIGURE 8-2 8-3 ­6­

Figure 6-3

CD-C405W/CD-C420H/CP-C410/CP-C405/CP-SR421
( K1 ) x4 ø3 x14mm ( L1 ) x1 ø2.6 x10mm Shift Lever CD Changer Mechanism

( E1 ) x9 ø3 x8mm ( E1 ) x1 ø3 x8mm ( E2 ) x2

Front Panel

Display PWB ( E2 ) x1

( E1 ) x1 ø3 x10mm ( E2 ) x1

Tape Mechanism Main PWB
CD Player Base CD Mechanism

( E1 ) x1 ø3 x12mm
Figure 7-1

Care when installing the CD changer mechanism. Install the CD changer mechanism on the CD player base after the shift lever has been set in the highest position. Figure 7-4 CP-C410

Front Panel

Hook ( F2 ) x1

( E2 ) x1
Front Panel (A1) x1

Open ( G1 ) x6 ø3 x10mm Cassette Holder Tape Mechanism Power Supply PWB ( F1 ) x2 ø3 x10mm
Figure 7-2 ( H1 ) x1 ø3 x10mm ( H2 ) x1

Hook ( F2 ) x1
Screw driver

Speaker Box

Driver should be pried away from speaker Box.

Direction of handle

Figure 7-5 Turntable

Speaker Box

( J1 ) x1 ø3 x10mm

Disc Tray

Woofer
( J2 ) x1 ( J1 ) x1 ø3 x10mm CD Player Unit ( J2 ) x1 Figure 7-6
­7­

(A2) x4 4 x12mm

Figure 7-3

CD-C405W/CD-C420H/CP-C410/CP-C405/CP-SR421
CP-SR421 CP-C405

Front Panel (C1) x1

Woofer

Speaker Box Screw driver

(B1)x2 ø3x20mm (B1)x2 ø3x20mm
Figure 8-1

Driver should be pried away from speaker Box.

(B1)x2 ø3x20mm

Direction of handle

Figure 8-2

Speaker Box

Woofer

(C2) x4 4 x35mm
Figure 8-3

­8­

CD-C405W/CD-C420H/CP-C410/CP-C405/CP-SR421

REMOVING AND REINSTALLING THE MAIN PARTS
CD MECHANISM SECTION
Perform steps 1, 2, 3, 10 and 11 of the disassembly method to remove the CD mechanism.

Loading Motor

How to remove the loading motor (See Fig. 9-1)
1. Remove the screws (A1) x 2 pcs., to remove the loading motor.

( A1 ) x2 ø2 x5mm
Figure 9-1

How to remove the turntable up/down motor (See Fig. 9-2)
1. Remove the screws (B1) x 2 pcs., to remove the turntable up/down motor.

Turntable Up/Down Motor

( B1 ) x2 ø2 x5mm

Figure 9-2

How to remove the pickup (See Fig. 9-3)
1. Remove the screws (C1) x 2 pcs., to remove the shaft (C2). 2. Remove the stop washer (C3) x 1 pc., to remove the gear (C4). 3. Remove the pickup.

( C1 ) x2 2.6 x6mm Pickup

( C2 ) x1 ( C3 ) x1

CD Mechanism ( C4 ) x1

Figure 9-3

­9­

CD-C405W/CD-C420H/CP-C410/CP-C405/CP-SR421

ADJUSTMENT
MECHANISM SECTION
· Driving Force Check
Torque Meter Play: TW-2412 Specified Value Tape 1: Over 80 g Tape 2: Over 80 g

TUNER SECTION
fL: Low-range frequency fH: High-renge frequency · AM IF/RF (CD-C405W) Signal generator: 400 Hz, 30%, AM modulated
Test Stage Frequency Specified Value Frequency Display 1,602 kHz 531 kHz 990 kHz Setting/ Instrument Adjusting Connection Parts T351 *1 (fL): T302 *2 1.1 ± 0.1 V (fL): T302 *1

· Torque Check
Torque Meter Tape 1 Play: TW-2111 Fast forward: TW-2231 Rewind: TW-2231 30 to 60 g. cm -- -- Tape 2 30 to 60 g.cm 60 to 120 g.cm 60 to 120 g.cm

IF Band Coverage Tracking

450 kHz -- 990 kHz

· Tape Speed
Test Tape Tape speed MTT-111 Adjusting Point Volume in motor. Specified Value 3,000 ± 30 Hz Instrument Connection Speaker terminal (Load resistance: 8 ohms)

*1. Input: Antenna, Output: TP302 *2. Input: Input is not connected, Output: TP301 · AM IF/RF (CD-C420H) Signal generator: 400 Hz, 30%, AM modulated
Test Stage Frequency Frequency Display 1,620 kHz 522 kHz 990 kHz Setting/ Instrument Adjusting Connection Parts T351 *1 (fL): T302 *2 1.1 ± 0.1 V (fL): T302 *1

IF Band Coverage Tracking

450 kHz -- 990 kHz

TAPE MECHANISM

*1. Input: Antenna, Output: TP302 *2. Input: Input is not connected, Output: TP301 · Setting the Test Mode Keeping the TUNING (DOWN) button and MEMORY button pressed, turn on POWER. Then, the frequency is initially set in the memory as shown in Table. Call it with the PRESET button to use it for adjustment and check of tuner circuit.
Preset No. FM 87.50 MHz 108.00 MHz 90.00 MHz 106.00 MHz 98.00 MHz Preset No. 6 7 8 9 10 AM 522 kHz 1,620 kHz 603 kHz 1,404 kHz 990 kHz 1 2 3 4 5 11 ~ 40

MM 1 Motor

Volume in motor

TUNER PWB

· FM Mute Level Signal generator: 1 kHz, 40 kHz dev. FM modulated.
Frequency
CD-C420H

Frequency Display 98.00 MHz

Adjusting Parts VR351 *1

Instrument Connection Input: SO301 Output: Speaker Terminal

TP301

FE301

98.00 MHz (25 dBµV)

T351 VR351 FM MUTE AM IF LEVEL T302 L311

SO301 ANTENNA TERMINAL

*1. Adjust so that an output signal appears

CNP301

IC303
R331

TP302 AM BAND COVERAGE fL S0301 ANTENNA TERMINAL

AM TRACKING fL

CD-C405W

Figure 10-1 ADJUSTMENT POINTS

­ 10 ­

CD-C405W/CD-C420H/CP-C410/CP-C405/CP-SR421 TEST MODE
· Setting the test mode Any one of test mode can be set by pressing several keys as follows. + + TEST: CD operation test · TEST mode Function -- CD test mode Setting of TEST mode Indication of CD TST mode (Fig. 11-1) OPEN/CLOSE operation is manual operation. The pickup can be moved by using the ( LASER ON Tracking on the spot. SERVO OFF PLAY ) or ( ) key. STOP IL is not performed.

Tracking on the spot. SERVO ON PLAY

key input

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. key: Track 4 key: Track 9 key: Track 15 ) or ( ) key.

Press key.

Stop

Note: Only in STOP state it is possible to slide the pickup with the ( VOL. --- Last memory BAL. --- CENTER R.GEQ. --- FLAT 1 X-BAS --- OFF Canceling method - POWER OFF

2

3

Figure 11-1

CD SECTION
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. 11-2) 2. Tracking offset (Fig. 11-3) 3. E/F balance (tracking error balance) (Fig. 11-4) 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.
0.1s 0.50 V IC1 20 FE FOCUS OFF-SET ADJUST 0.1s 0.50 V IC1 7 TE
10ms 0.50 V IC1 7 TE 10ms 0.50 V IC1 20 FE Enlarged View

TRACKING OFF-SET 1 ADJUST 2

TRACKING OFF-SET 1 ADJUST 2

Figure 11-2
200 ms 1V/diV IC 1 15 TO TRACKING/ ERROR BARANCE 1 ADJUST

Figure 11-3

200 ms 1V/diV IC 1 7 TE

2

Figure 11-4
­ 11 ­

CD-C405W/CD-C420H/CP-C410/CP-C405/CP-SR421

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 electrolytic capacitor, the expression "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 SW1 SW2 SW3 SW4 SW301 SW701 SW702 SW703 SW704 SW705 SW706 SW709 SW710 SW711 SW712 SW713 DESCRIPTION OPEN/CLOSE MECHA UP DISC NUMBER PICKUP IN SPAN SELECTOR [CD-C405W ONLY] RANDOM/DEMO VOLUME DOWN X-BASS VOLUME UP OPEN/CLOSE DISC SKIP REC./PAUSE UP STOP PLAY DOWN POSITION ON--OFF ON--OFF ON--OFF ON--OFF 50/9-100/10 ON--OFF ON--OFF ON--OFF ON--OFF ON--OFF ON--OFF ON--OFF ON--OFF ON--OFF ON--OFF ON--OFF SWM 1 SWM 3 SWM 4 SWM 5

· The indicated voltage in each section is the one measured by Digital Multimeter between such a section and the chassis 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.

REF. NO SW714 SW715 SW717 SW718 SW719 SW721 SW722 SW723 SW724 SW725 SW961

DESCRIPTION TUNING UP TUNING DOWN POWER CLOCK TIMER/SLEEP MEMORY/SET CD TUNER TAPE AUX AC VOLTAGE SELECTOR [CD-C405W ONLY] T1 CrO2 [CD-C405W ONLY] FOOL PROOF F.A.S. CAM

POSITION ON--OFF ON--OFF ON--OFF ON--OFF ON--OFF ON--OFF ON--OFF ON--OFF ON--OFF ON--OFF 110--127-- 220--230-240 ON--OFF ON--OFF ON--OFF ON--OFF

FRONT VIEW

FRONT VIEW

E C B (S) (G) (D) (1) (2) (3)
2SA1015 GR 2SB561 C 2SC1845 F 2SC380 O KRA102 M KRA109 M KRC102 M KRC104 M KRC107 M KTA1266 GR KTA1273 Y KTC3199 GR KTC3203 Y

B C E (D)(G) (S) (3) (2) (1)
2SD2012 Y

Figure 12 TYPES OF TRANSISTOR
­ 12 ­

PICKUP UNIT +5V Q1 XL1 +5V

62 64 44 45 23 36 41 43

6
VVDD VDD LVDD RVDD XVDD LCHO 37

LD0

VCC1

XIN XOUT

IC1 LA9240M
JP­ 32 ~

TO MAIN SECTION
( TO IC401 )

FOCUS COIL CV+ 40 SLC 43 SL1 44 ~
20 JP­

1 2 3 4
FIN2 FIN1 E F

SERVO AMP.
CONT1 24 RES. CQCK. COIN SQOUT. RWC. WRQ
53 ~ 58 26

IC2 LVSS 38 RVSS 39 LC78623U RCHO 40 9 EFMO SERVO/SIGNAL 10 EFMIN 12 CLV+ CONTROL
1 9 6 5 3 7

TRACKING COIL TO FD SPO SP SLD SL­ SL+ DRF CL DAT CE CONT2 25

IC91 TA7291S LOADING MOTOR DRIVER

+B1

15 16 27 23 29

30 31 54

51 52 53

Q93 CL, DAT, SELIAL CONTROL/CE

Figure 13 BLOCK DIAGRAM (1/3)
Q91 SL+. SL­. DRF +12V(+B5)

CD-C405W/CD-C420H/CP-C410/CP-C405/CP-SR421

­ 13 ­
5
22 32 20

M2 SLIDE MOTOR

M1 SPIN MOTOR

10 GND (D)

10

SW2 MECHA UP SW3 DISC No. SW1 OPEN/CLOSE

M
+B1

M
IC5 M56748FP DRIVER
8 9
10 11

6 7

12 13

MECHA UP GND (D) DISK NO. OPEN/CLOSE GND (D) M­ M+ GND (M)

M
CNP10 CNS10

M3 LOADING SOLM1

24 25 30 31

26 27 28 29 34 35 36

9 8 7 6 5 4 3 2 1

9 8 7 6 5 4 3 2 1

PICKUP IN SW4 PU-IN SW

TO DISPLAY SECTION

REGULATOR +5V Q81 +5.6V (B1)

CD-C405W/CD-C420H/CP-C410/CP-C405/CP-SR421

420H ONLY SO301 ANTENNA TERMINAL 8

420H ONLY

+B4 +B6 420H ONLY

CF351

420H: S0003AW 405W: S0005AW 2 6 7 3 4 VCC

T351 FM IF IN

X351

FE301 FM FRONT END

FM IF 1 5 1 VR351 FM MUTE LEVEL
24

AM IF Q301 CF302 L354 MONO/

CF301

FM/AM ANTENNA TERMINAL

FM AM 420H ONLY 405W ONLY

2 MIX OUT

3 REG

4

5

8 9 FM DET

17

18

16

13

AFC
23 22 21 10

IC303 LA1832 FM/AM IF
6
12

14 15

L-CH R-CH

7

STEREO

AM OSC OUT AM OSC IN

AM LOOP ANTENNA FM OSC 420H ONLY L311 BALUN

AM RF IN

IF OUT

FM/AM

SD

MUTIN

+B6

AM TRACKING

T302 AM AMT.

AM BAND COVERAGE

VOLTAGE REGURATER +B4

20

12

1

22

15

16

11

3 4 5 6
13 17 21

SWITCHING Q360 FM

IC302 LC72131 PLL CONTROLLER
7
10

OSC

ST

CE DI CL DO

VT

AM IN

FM IN

X352 4.5MHz

ST FM +B4 Q361

SO
VIDEO/AUX TAPE TUN CD

FROM CD SECTION

TAPE 1 PB HEAD L-CH R-CH TAPE 2 REC/PB HEAD L-CH R-CH REC P.B SWITCHING Q103 Q106

PLAYBACK&RECORD/ PLAYBACK AMP. IC101 AN7345K
L (T1) 1 R (T1) 24 L (T2) 2 R (T2) 23 L NF 3 R NF 4 POP REDUCE 6 L REC 9 R REC 16 AC BIAS REF
14 12 13

Q121 Q122 MUTING +B4
L R

REC

P. B. L 4 R 21 5
20

P. B

~

T1/T2 REC

H/N

18

7 L REC R 8 L NF 17 R NF 10 ALC

T1/T2
19

T1/T2 SWITCHING Q107 Q108 SWITCHING Q111

Q109

Q110

SWITCHING BIAS OCS ERASE HEAD SWITCHING Q128 L104 Q124 BIAS Q126 BIAS

CD-C405W BLOCKMAIN

Figure 14 BLOCK DIAGRAM (2/3)
­ 14 ­

CD-C405W/CD-C420H/CP-C410/CP-C405/CP-SR421

+B2

FL701 DISPLAY
MONO/ST 1 2 3 ~
30 31 32 33

UNSWITCH +B1

MEMORY BACK UP TO CD SECTION TO CD SECTION

Q701

TAPE BIAS TAPE REC T1/T2 CD DSP WRQ CD DSP RWC CD DSP CQCK CD DSP COIN CD DSP SQOUT RESET CD DSP RES CD T/T OPEN/CLOSE

CD UP DOWN/DISC NO T2 RRUN PLSE L-CH INPUT R-CH INPUT

14 15

L-CH R-CH

TO POWER SECTION +B5 PHM1

MUTING Q353 Q354 6 7 8

9

10 11 12 13 14 15 16 17 18 19 20

21 22 23 24 25 27

KEY SW701 AVDD AVREF VDD +B2 SW725

~

~

+B6

1
80

72 71 70 65 64 61

IC701 IX0191AW SYSTEM CONTROL MICROCOMPUTER

29 30 33 34 35 36 37 38 39 40

~

XL702 4.19MHz CL DE DI DO DRF RESET RESET Q707 Q708 Q709 ZD701 TO CD SECTION

~

TAPE MECHASTOP T1 RUN PLSE TAPE FP

VDD TAPE MOTOR TAPE SOL

POWER CD SL­ CD SL+ CD PUIN

~ ~
SWM3 FOOL PROOF SWM4 F. A. S ST FM SWM5 CAM PRESET GRAPHIC EQUALIZER +B4

TO CD SECTION

60 59 58 57 56 55 54 53 52 51 50 49 43 48 47 46 45 44 43 42 41

SYSTEM STOP

1

RX701 2 3

CL DI CE

+B2

SO401
VIDEO/AUX

23 24 25

57

4

45

7

42

5

44

8

41

6

43

9

40

49 64

L R

16 33

VDD

IC801 LA4551 POWER AMP.
13

TAPE TUNER CD

L R L R L R

17 32 19 30

IC401 LC75394E AUDIO PROCESSOR
GRAPHIC EQUALIZER

VOLUME

OUT 58 L 55 R

R-IN 9 L-IN 7 VCC MUTE

L-OUT 2 5 R-OUT

J801 HEADPHONES

14

RVREF

LVREF

8

NF 3 4

12 11

VREF

21 28 14 35

VSS AVSS

+ ­ SO801 FRONT SPEAKER TERMINAL + ­ ­ + SO802 REAR SPEAKER TERMINAL

56

63

50

26 27

12

37

11

38

10

39

X-BASS

VOLTAGE REGULATOR +B1 UN-SWITCHED +5.6V +5.6V VOLTAGE REGULATOR +12V (ANALOG) Q942 D961 ~ D964 Q952 Q953 D965 ~ D968

CD-C420H ONLY

TO CD SECTION

+B1

F962 T2.5A L 250V

CD-C420H ONLY

+B4

230-240V 220V

+B5

+12V (MOTOR)

Q941 VOLTAGE REGULATOR

Q943

127V 110V SW961 VOLTAGE SELECTOR F963 T1.6A L 250V CD-C405W ONLY T.F AC POWER SUPPLY CORD

ZD972 Q971 VOLTAGE REGULATOR

D971 D973

~

405W:AC 110/127/ 220/230-240V 50/60Hz 420H:AC 230V 50Hz

Figure 15 BLOCK DIAGRAM (3/3)
­ 15 ­

CD-C405W/CD-C420H/CP-C410/CP-C405/CP-SR421

A

11
P19 7-H TO SENSOR PWB CNS10

4

5

6

C44 36 D709 D708 C717 C95 10 9 8 7 6 5 4 3 2 1 R775 C91 R99 9 8 7 6 5 4 3 2 1 CNP10 L700 35 5 1 SW715 TUN-DOWN R97 SW721 MEMORY/SET R54 R30 R788 R25 R24 D91 Q91 B C E SW714 TUN-UP C18 C19 C81 30 25 19 20

SW717 POWER

SW718 CLOCK R769 R765

IC5
10 15 18

B
1 2 3 4 5 6 7 8 9 10 11 12 RD R771 C706 1 WH GY WH GY WH GY WH

BIM01

R759

E C B

Q705

TO TAPE MECHANISM PWB CNPM1 P18 1-A

R758

C92 R760

IC91

E C B

R98

TIMER/SLEEP SW719

D702

Q706

R96 R95 Q93 1 2 3

C715

R799

CNSM1

1 2 3 R711 R603

RX701

8

R789

C52 R E C B Q81 R783 R61 C L1 17 16 15 20 25 C51 C96 C43 R82 XL1 STOP SW711 C46 C54 C56 C55 C57 32 33 30 35 40 45 50

C
1 2 3 4 5 6 7 8 9
10

C718 R726 R727 R703 R705 R707 R709 R731 R743

R702

R724

R708

R714

R735

CD SW722 R792 420H ONLY R753

SW713 DOWN

C59

R88 R87 R86

R748

R746

10 5 60 55

IC2

R706

R712

R704

R747

R745

R742 R744 R778 R797

C704

12 13 14 15 16 17 18 19 20 21 22 23 24 25

C703

D

11

41 40 45 50 55 FL701 64 65 60 70 75 5

48 49

R740 R793 TUN SW723 R752 R739 R755 R738 R774 R750 R751 R757 R756 R736 R749 R71 R72 R79 PLAY SW712

30 20 15 10

IC701

R70 R77 R78 R49

25 24

XL701

35

R154

420H ONLY R141 C135

80 1 R794

R733 R732 R754 R730 R737 C701 SW725 VIDEO/AUX C705 R772 Q707 D701 R762 R766 R779 R781 R780 1 2 3 D703

R135 C129 R153 R139 R145 R131 C119 R125

C141 C139 C133 C131 C128 C127

26

E

27 28 29 30 32 33 31

C702

R768

SW710 UP

R722

R172 R133

C121 420H R123 ONLY 405W:JUMPER L107 420:L107 R121 C117 C123 C113

R761 L701

C1 R

C111 R1

R717 R719 R721 R713 R715 R716 R718 R720 R723 R725

Q708

R764

CNP101

B C E R776 R786 ZD701 D704 D706 D705

Q709

Q701 1 2 3

R734 R741

C710

B C E

C101 SW706 D-SKIP R782 C855 Q111 Q110 1 2 1 2

F

R785 R701 C709 R798 R795 SW701 RANDOM/DEMO SW703 X-BASS R773

SW709 REC/PAUSE SW705 OP/CL

R763

C453 C454

G

C843 C844

SW704 VOL-UP

R767

SW702 VOL-DOWN R777 R835

R811

R809 R836 420H ONLY

JK801 HEADPHONES

DISPLAY PWB-A2

HEADPHONS PWB-A3
TO TAPE MECHANISM CNS101 P18 1-H

H

· The numbers 1 to 12 are waveform numbers shown in page 30.
1 2 3 ­ 16 ­ 4 5 6

Figure 16 WIRING SIDE OF P.W.BOARD (1/4)

R109 C80

C711

R101

C707 C708

1 2 3

R152

SW724 TAPE

C58 D7 D5

Q121

B C E

C

R137

CD-C405W/CD-C420H/CP-C410/CP-C405/CP-SR421

P18 5-D P18 4-D P18 5-H TO CD MOTOR PWB TO PICKUP UNIT TO PICKUP UNIT CNS3A CNS2A CNS1A

P19 9-C TO TUNER PWB CNP303

6

7 12

10
C25 R43 C24 E C B

1

8

9

2

MAIN PWB-A1

R31

C44 19 20

5 4 3 2 1 CNP1

R42

6 5 4 3 2 1 CNP3 1 2 3 4 5 6 7 8

Q1

D404 D403

30

25

C5
5 10 15 18 R39 C17 C11 C12 R23 R22 C19 C81 R21 R19 C15 R29

R10 C21 C7 C94

CNP2 R6 C9 R7 C6 R9 R11 C10 C8 R8 R5 R4 C5 R3 R2 15 20 C3 10 5 60 55 50 C1 1 64 C2 R1 C40 C38 C39 C404 C403

CNP402 10 9 8 7 6 5 4 3 2 1 C446 C4

3
405W ONLY

R12 R28

R13 C13

R14 R15 R17 R16

R25 R24

C18

C14

SW301 SPAN SELECTOR 50/9KHz-100/10KHz

R20 C16 C20 25 R26 32 33 30 35 40

IC1
45

C52

R27 R81

E C B Q81 C53 C30 R33 C32 R34 R32

C45 C50

C451

R422

C35 C37 D2 C97 R403 R402 R401 R417 C411 R413 R411 C413 R418 R419 R420 25 R74 C70 R76 32 33 30 35 17 16 15 20 C419

C410 C409 ZD971 C974 C975 C973 R972 R405 R406

C455

48 49 R41

R-CH
R408 C407

R38

R35 R56

15 20 25 30 5 40 45 50

C31 R37 C42 C41 R18

10 5 60 55 1 64 C22

C33 R36 C34

R421

17 16

SO401 VIDEO/AUX

D973

R58 R60

E C B C421 C976 ZD972 R976 R975 R978 R977 Q971 C971

C401 R73 C69 R75 C402 C405 C406 R414 R412 C414 C452

D971

IC2

R415 R416

C417

R973 R974

D972

R57

R475

R407

L-CH
C408 C972 420H ONLY R844 C845

C425 10 5 60 1 64C433 C435 C437 C439 R479 C445 C423 C427

C67 C92 C68 C146 Q122

R45

C412 R476 C418 C420

IC401
45 55 50

40

C849

R154

R134

R150

L105 R136 R142 C136 Q124 R158 420H ONLY

405W:JUMPER 420H:L105 R160

48 49 C422 C440 C438 C436 C434 R480 C442 C441

C961 C962 C444 D963

C135 E R137 C141 C139 39 45 31 25 23 L107 R121 C123 C113 C133 C131 C128 C127 C121

C148 R152 C147

C851

R141

405W:JUMPER 420H:R845 R845

C847 C853

420H ONLY

B C E

CNP901 6 5 4 3 2 1

R981

48 49

R47 R46

R-CH SO801 SPEAKERS
C871 C872

D962

D964

10

15

IC101

Q126

R140 C134 C132 R126 R124 C120

R478

5

20 C122

D401

1 C115 R119 C111 R117

24 C114 R102 R107 C112 B C E 7 6 5 4 3 2 1

L108 E C B C116 R120 Q103 E C B E C B E C B Q106 R105 Q105 R103 R104

C150

C124 C118 R122

Q109

B C E R113 C109

L104 R166

R477

R132

1 2 3

C944

R843 C850 C846 R982

C130 R138

B C E Q128 C151 R168

D961

12

R162 C153 R164

C428

C852 C848

C145 C142 C140 R146 13

R174

B C E

D402

C152 R167

C426

C443

C424

L-CH

420H ONLY SO802 SPEAKERS

405W:JUMPER 420H:L108

D967

R118 C106 R112 C105 R111 Q104

C956 R946 C953 R953 C954 D968 D966 D965 C955 ZD941 R947

405W:JUMPER 420H:L831 L831

R815

CNP101

L-CH

Q107 C107 C102 C108 R108 B C E

CNP102

1 2 3

R101

R109

R106

C825

C943

C805

C808

C829

C830

C941 R949

C947

R805

C945

R948 C948

R806 C831

D942 D941

R951

F1 T500mA L 250V

C803

C801

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

Q942

B C E Q941

B C E

Q953

B C E

Q952

IC801
C453 C454 C814 C809 C810 C802

R810

R811 C812

R812

D951

C823

C804

B C E

TO POWER PWB CNS901 P19 10-B

R809

C813

CHANISM 01 -H

TO TAPE MECHANISM CNS102 P18 2-H

7

8

9

10

11

L832

C820

405W:JUMPER 420H:L832

R114

R944

R803

C827

R804

R943

Q110

1 2 3

R115

R825

420H ONLY

C806

R808 R807

C942

C824

Q943

Q111

1 2 3

R110 Q108

C828

B C E

ZD951 R952 C952

C101

R945

C800

C957

R-CH

12

Figure 17 WIRING SIDE OF P.W.BOARD (2/4)
­ 17 ­

CD-C405W/CD-C420H/CP-C410/CP-C405/CP-SR421

P16 1-B TO DISPLAY PWB CNSM1

PICKUP UNIT

A
R
12 11 10 9 8 7 6 5 4 3 2 1 CNPM1

B

SWM4 F. A. S

CNS1B 1 2 3 4 5
CNPM2

1 2 3 4 5 6 7 8

CNS2B

SWM1 T1 CrO2

1

2

WH

C
SOLENOID SOLM2

BK

1 2 3 4 5

BK WH PK YL BL

CNS1A SWM5 CAM CNP1 TO MAIN PWB P17 8-A CNP2 TO MAIN PWB P17 8-A

RD WH GY WH GY WH GY WH

405W ONLY

FWM2

BL PK WH YL BK

1 2 3 4 5 6 7 8

CNS2A

SWM3 F. P.

1

WH BK

D
FWM1
2

M1

DISC MOTOR

4 3

E

PHM1 1 2

MM1

TAPE MOTOR

+

M2 SLIDE MOTOR

TAPE MECHANISM PWB-D
+

SW4 PICK UP IN

TAPE 1 PLAY BACK HEAD(55)

TAPE 2 ERASE HEAD(56) RECORD/PLAY BACK HEAD(55)

F
WH PK BK WH BK YL BL WH BK PK

CNP3A 1 2 3 4 5 6

CD MOTOR PWB-E
GY BR GY 1 2 3 4 5 6

CNS3B

RD BK WH

BK WH PK BK BL YL WH

3 2 1

CNS101

7 6 5 4 3 2 1

CNS102

RD WH GY WH GY WH

G

1 2 3 4 5 6

CNS3A

TO MAIN PWB CNP101 P16 6-H

TO MAIN PWB CNP102 P17 8-H

CNP3 TO MAIN PWB P17 7-A

H

1

2

3 ­ 18 ­

4

5

6

Figure 18 WIRING SIDE OF P.W.BOARD (3/4)

CD-C405W/CD-C420H/CP-C410/CP-C405/CP-SR421

POWER PWB-B2

TUNER PWB-B1

F963 T1.6A L 250V

6 F962 T2.5A L 250V WH GY WH GY WH RD

CNS901
6 5 4 3 2 1

BI901

T961

POWER TRANSFOMER 1

TO MAIN PWB CNP901 P17 11-G

R365

C375

D352

R368

Q354 E C B C374

R375

Q353 E C B

R370

R383

R392

C397

R367

R363 R364

ZD351

R391

R354

R361

R362

C372

R377

C390

C371 C373

C396

C395

CNP303

C398

C354

R387

K952

R395

C355

C391 R371 R372

D364

C370

C353 IC303

R360

10

15

C399

C365

405W ONLY

TO MAIN PWB CNP402 P17 9-A

D363

405W ONLY SW961 127V 110V

C386

R376

C351

R384

BF351

R352

1

R351 24 C331 C325 C361 R358 C362 420H ONLY C341 C363 C364

T351

ZD352

R374

K951

IC302

R373

L351

220V

C388

AC POWER SUPPRY CORD (216) CD-C405W: AC 110/127/220/230-240V 50/60 Hz CD-C420H: AC 230V 50 Hz

230-240V

420H ONLY

405W ONLY

Q361

SW961 VOLTAGE REGURATOR

C383

X352

3 2 1

9 8 7 6 5 4 3 2 1

13 14 C385 15 16 17 R399 18 19 R379 20 21 C392 22

C342 VR351

CF302

11 10

C352

C387 12 R398

C350 3 2 1

L353 R380

C382

C381

C394 R381 C393 C334 R323 C332

D368 D367 C384

Q301

R304 R305

R301 CF301 1 2 3

R307

420H ONLY

C323

C400

405W:JUMPER 420H:R315

R318

R315 1 2 3 4

420H ONLY C321

R308

D311

FE301

5 6 7 8

D312

T302

B C E

L312 C322

R320

C327

R310

C320

420H ONLY

D361

D362

405W ONLY CNP301 2 1

FM SW3 DISC NUMBER CNS5
2 1 2 1 420H ONLY

AM
405W ONLY 420H ONLY

SO301 FM 750OHMS

AM LOOP

SW2 MECHA UP

SENSOR PWB-F
SW1 OPEN/CLOSE

CNS10
10 9 8 7 6 5 4 3 2 1 OR BR WH GY WH GY WH GY WH RD

M3 T/T UP/DOWN

1

BIM5

TO MAIN PWB CNP10 P16 4-B

-

SOLENOID SOLM1

+ 6

7

8

9

10

11

Figure 19 WIRING SIDE OF P.W.BOARD (4/4)
­ 19 ­

C328

C331

420H ONLY

R330

1 2 3

20

C367

10 9 8 7 6 5 4 3 2 1

R386

R385

B C E

R382

R355

X351

R331

C356 L352

CF351 12

Q360

13

R353

L354 C366

5

12

R356

T.F

C358 C357

R359

C368

R366