Sharp CD-C405W Service Manual
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Illustration: CD-C405W/CP-C405
Illustration: CD-C420H/CP-C410/CP-SR401
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
CD-C405W/CD-C420H/CP-C410/CP-C405/CP-SR421
SERVICE MANUAL
CD-C405W and CP-C405 constitute CD-C405W.
CD-C420H and CP-C410 and CP-SR421 constitute CD-
C405W.
• In the interests of user-safety the set should be restored to its
CONTENTS

SHARP CORPORATION

- 1 -
CD-C405W
CD-C420H
CP-C405
CP-C410
CP-SR421
original condition and only parts identical to those specified be
used.
No. S5733CDC405W/
Page

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Summary of Contents for Sharp CD-C405W

  • Page 1: Table Of Contents

    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 ..................................
  • Page 2: Specifications

    Wow and flutter: 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.
  • Page 3: Names Of Parts

    CD-C405W/CD-C420H/CP-C410/CP-C405/CP-SR421 NAMES OF PARTS CD-C405W/CD-C420H Front Panel 1. Disc Tray 3 4 5 2. Disc Number Indicator 3. Timer Indicator 4. Record Indicator SLEEP X-BASS 5. Sleep Indicator 6. Extra Bass Indicator: X-BASS 8 9 10 7. Function/CD Track/CD Counter/Frequency/Preset Channel/Volume/Timer/Sleep Time Indicator 8.
  • Page 4 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 CP-C410 Speaker Section 6. Full Range Speaker 7. Speaker Wire CP-SR421 Speaker Section 8.
  • Page 5: Operation Manual

    CD-C405W/CD-C420H/CP-C410/CP-C405/CP-SR421 OPERATION MANUAL – 5 –...
  • Page 6: Disassembly

    CD-C405W/CD-C420H/CP-C410/CP-C405/CP-SR421 DISASSEMBLY CD-C405W/CD-C420H Caution on Disassembly Illustration: CD-C405W Follow the below-mentioned notes when disassembling the unit and reassembling it, to keep it safe and ensure Top Cabinet ( A1 ) x2 excellent performance: ø3 x12mm 1. Take cassette tape and compact disc out of the unit.
  • Page 7 CD-C405W/CD-C420H/CP-C410/CP-C405/CP-SR421 ( K1 ) x4 ( E1 ) x9 ø3 x14mm Front Panel ø3 x8mm ( L1 ) x1 ø2.6 x10mm ( E1 ) x1 ø3 x8mm Display PWB Shift Lever ( E2 ) x2 ( E2 ) x1 CD Changer...
  • Page 8 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 Driver should be pried ø3x20mm away from speaker Box. (B1)x2 (B1)x2 ø3x20mm Direction of handle ø3x20mm Figure 8-2 Figure 8-1 Speaker Box Woofer (C2) x4 4 x35mm Figure 8-3 –...
  • Page 9: Removing And Reinstalling The Main Parts

    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 Loading Motor to remove the CD mechanism. How to remove the loading motor (See Fig. 9-1) 1. Remove the screws (A1) x 2 pcs., to remove the loading motor.
  • Page 10: Adjustment

    MECHANISM SECTION Driving Force Check fL: Low-range frequency fH: High-renge frequency Torque Meter Specified Value AM IF/RF (CD-C405W) Play: TW-2412 Tape 1: Over 80 g Signal generator: 400 Hz, 30%, AM modulated Tape 2: Over 80 g Test Stage Frequency...
  • Page 11: Test Mode

    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. <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.
  • Page 12: Notes On Schematic Diagram

    ON—OFF SW717 POWER ON—OFF DISC NUMBER ON—OFF SW718 CLOCK ON—OFF PICKUP IN ON—OFF SW719 TIMER/SLEEP ON—OFF SW301 SPAN SELECTOR 50/9-100/10 [CD-C405W ONLY] SW721 MEMORY/SET ON—OFF SW701 RANDOM/DEMO ON—OFF SW722 ON—OFF SW702 VOLUME DOWN ON—OFF SW723 TUNER ON—OFF SW703 X-BASS ON—OFF...
  • Page 13: Block Diagram

    CD-C405W/CD-C420H/CP-C410/CP-C405/CP-SR421 XVDD RVDD LVDD VVDD SL– Figure 13 BLOCK DIAGRAM (1/3) – 13 –...
  • Page 14 CD-C405W/CD-C420H/CP-C410/CP-C405/CP-SR421 420H ONLY 420H ONLY 420H ONLY SO301 FM IF FE301 AM IF ANTENNA FM FRONT END CF302 L354 CF301 Q301 TERMINAL T351 420H: S0003AW MONO/ FM IF IN 405W: S0005AW FM/AM ANTENNA IC303 TERMINAL VR351 L-CH LA1832 420H ONLY...
  • Page 15 CD-C405W/CD-C420H/CP-C410/CP-C405/CP-SR421 UNSWITCH FL701 DISPLAY MEMORY BACK UP MONO/ST 31 32 TO CD SECTION TO CD SECTION Q701 TO POWER SECTION L-CH R-CH PHM1 MUTING Q353 Q354 SW701 AVDD SW725 IC701 AVREF IX0191AW XL702 SYSTEM CONTROL 4.19MHz MICROCOMPUTER TO CD SECTION...
  • Page 16: Schematic Diagram / Wiring Side Of P.w.board

    CD-C405W/CD-C420H/CP-C410/CP-C405/CP-SR421 P19 7-H TO SENSOR PWB CNS10 SW717 POWER 10 9 8 7 6 5 4 3 2 1 SW718 10 15 CLOCK R769 CNP10 R765 SW715 TIMER/SLEEP TUN-DOWN SW719 SW721 MEMORY/SET TO TAPE MECHANISM PWB B C E CNPM1...
  • Page 17 CD-C405W/CD-C420H/CP-C410/CP-C405/CP-SR421 P18 5-D P18 4-D P18 5-H P19 9-C TO CD MOTOR PWB TO PICKUP UNIT TO PICKUP UNIT TO TUNER PWB CNS3A CNS2A CNS1A CNP303 MAIN PWB-A1 6 5 4 3 2 CNP3 5 4 3 2 D404 D403...
  • Page 18 CD-C405W/CD-C420H/CP-C410/CP-C405/CP-SR421 P16 1-B TO DISPLAY PWB PICKUP UNIT CNSM1 1 2 3 4 5 1 2 3 4 5 6 7 8 CNS1B CNS2B 405W ONLY 1 2 3 4 5 1 2 3 4 5 6 7 8 CNS1A...
  • Page 19 CD-C405W/CD-C420H/CP-C410/CP-C405/CP-SR421 TUNER PWB-B1 POWER PWB-B2 F963 T1.6A L 250V CNS901 F962 T2.5A L 250V TO MAIN PWB CNP901 P17 11-G T961 POWER TRANSFOMER Q354 E C B Q353 R367 E C B C374 C372 C371 C395 R359 C368 C373 R331...

This manual is also suitable for:

Cd-c420hCp-c405Cp-sr421Cp-c410

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