Sharp CD-C452 Service Manual

Text of Sharp CD-C452 User Guide:

• Sharp CD-C452, NO. PRICE RANK DESCRIPTION PARTS CODENO. PART CODE PRICE RANK DESCRIPTION CD-C452/C452C C44~49 VCKYMN1HB101K J AA 100 pF,50V C50 VCTYMN1EF223Z J AA 0.022 µF,25V C51,52 VCEAZA1CW107M J AC 100 µF,16V,Electrolytic C53 VCTYMN1EF223Z J AA 0.022 µF,25V C54 VCKYBT1HB102K J AA 0.001 µF,50V C56 VCTYMN1EF223Z J AA 0.022 µF,25V C57 VCKYBT1HB102K J AA 0.001 µF,50V C71,72 VCEAZA1HW106M J AB 10 µF,50V,Electrolytic C73,74 VCKYMN1HB221K J AA 220 pF,50V C75 VCKYBT1HB102K J AA 0.001 µF,50V C81,82 VCEAZA1CW476M J AB 47 µF,16V,Electrolytic C83 VCTYMN1EF223Z J AA 0.022 µF,25V

• Sharp CD-C452, CD-C452/C452C – 13 – PACKING OFF THE SET (For U.S.A. Only) Setting position of switches and knobs Tape Mechanism STOP FRONT Polyethylene Bag SPAKP0013AWZZ1 SPAKA0192AWZZ Polyethylene Bag 92L70032001600 92L71525003200 Sheet Label,Pop Label,Bar Code Polyethylene Bag,  Accessories 92LBAG1460C1 Packing Add. 92L720CPC46200 92L6100PC45200 Packing Add.,(Left/Right) Packing Case SPAKC0651AWZZ TLABR0959AWZZ BOTTOM TOP FRONT FRONT FRONT SIDE OF SPEAKERS TOP Unit Front Speaker(L/R)  A B B A FM/AM Loop Antenna Quik Guide Operation Manual

• Sharp CD-C452, CD-C452/C452C – 8 – Screwdriver Net ( A1 ) x1 Baffle Board ( A2 ) x1 Woofer Tweeter ( A3 ) x2 ø3 x10mm ( A5 ) x2 ø3 x10mm ( A4 ) x4 ø4 x14mm Woofer Tweeter Super Tweeter CP-C452 1 Front Speaker 1. Net .......................... (A1) x1 8-1 2. Baffle Board ........... (A2) x1 3. Screw ..................... (A3) x2 8-2 4. Screw ..................... (A4) x4 5. Screw ..................... (A5) x2 STEP REMOVAL PROCEDURE FIGURE CP-C452 Figure 8-2 Note: The center and rear speakers can be easily disassembled. Therefore t

• – 33 – CD-C452/C452C PARTS GUIDE NOTE: Parts marked with “ ” are important for maintaining the safety of the set. Be sure to replace parts with specified ones for maintaining the safety and performance of the set. MODEL CD-C452/C452C CP-C452,Constitute CD-C452/C452C. “HOW TO ORDER REPLACEMENT PARTS” To have your order filled promptly and correctly,

• CD-C452/C452C – 14 – • The numbers 1 to 12 are waveform numbers shown in page 10. Figure 14 SCHEMATIC DIAGRAM (1/10) A B C D E F G H 1 23456 • NOTES ON SCHEMATIC DIAGRAM can be found on page 9. 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�

• Sharp CD-C452, – 15 – CD-C452/C452C Figure 15 SCHEMATIC DIAGRAM (2/10) 7 8 9 10 11 12 12 CNP11 D1 1SS133 C44 100P C45 100P C47 100P C22 220P C23 0.0027 38 0 R53 1.2K C74 220P C73 220P R73 390 R74 390 C43 330/6.3 C48 100P C49 100P C81 47/16 C57 0.001 D4 RL104A R62 1K R63 1K C38 0.01 R61 1K R57 1K 6 33 R60 1K R52 27K C40 0.047 C39 0.047 R50 680 R90 1K R89 1K R83 3.9 C83 0.022 D82 1SS133 D81 1SS133 C72 10/50 C71 10/50 R93 220 C35 1/50 R88 1K C28 0.1 CNP10 R51 3.3M R42 47K R44 33K R39 1K 5 P IC2 LC78623D SERVO/SIGNAL CONTROL C46 100P C53 0.022 R47 10K C37 0.022 Q91

• Sharp CD-C452, CD-C452/C452C – 11 – Figure 10 CABINET EXPLODED VIEW (2/2) A B C D E F G H 1 23456 CD-C452/C452C PWB-F CD MECHANISM PWB-C 611 236 213 223 217 210 238 236 611 213 612x4 236 222 211 SOLM2 M3 609x2 SW2 218 232 216 228 230 231 231 214 610 607 229 226 607 235 234 236x2 236 616 207 236 236 SW3 201 603 620 212 257-1 257-2 257-3 257 237 614x2 614x2 202 251 251-2 251-1 251-3 621 611 601 221 219 – 10 –

• Sharp CD-C452, CD-C452/C452C – 16 – A B C D E F G H 1 23456 • NOTES ON SCHEMATIC DIAGRAM can be found on page 9. Figure 16 SCHEMATIC DIAGRAM (3/10) R529 330 R636 10K D602 1SS133 D603 1SS133 C524 10/50 R510 18K C521 0.33/50 R503 1K C506 0.022 C504 47/25 C516 0.15/50 C542 220/16 C510 0.47/50 C512 4.7/50 C515 0.0033 (ML) C503 1/50 C533 0.47/50 R509 4.7K C551 100P C520 0.15/50 C522 0.15/50 C527 10/50 C531 2.2/50 R511 1K C550 100P C537 10/50 C540 10/50 C535 10/50 C538 10/50 D516 RL104A C539 220/16 R512 4.7K R502 100K C546 220P C549 100P C543 0.1 (ML) C534 0.1 (ML) C505 0.47/50 R504 1M C525 3.3/50 C526 0.15/50 C528 4.7/50 R501

• – 9 – CD-C452/C452C • 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 st

• – 19 – CD-C452/C452C Figure 19 SCHEMATIC DIAGRAM (6/10) 7 8 9 10 11 12 D707 1SS133 R707 120K R789 47K 1K R765 3.3K D705 1SS133 D708 1SS133 R775 2.2K R770 1K R764 1K Q704 KRC102 M R774 150 D709 1SS133 R771 100 Q706 KTC3199 GR Q705 KTC3199 GR R769 10K R768 10K 82 R767 R772 1K C708 0.01 D706 1SS133 R766 100K R773 120 C709 100/10 ZD701 MTZJ3.3B C710 220/10 C715 0.022 RX701

• Sharp CD-C452, – 31 – CD-C452/C452C 56 P124 TAPE1 RUN PULSE Input TAPE1 Run pluse 57 P123 TAPE MECHA STOP Input Tape mecha up state: L 58-60 P122-P120 Q-SOUND•VIRTUAL• Output LED drive output PROLOGIC 61-70 FIP25-16 FL DRIVER Output Segment Output 71 VLOAD VLOAD Output Connect with VPP 72-77 FIP15-FIP10 FL DRIVER Output Segment Output 78 P97 QS_BYP_AR Output Q-SOUND BYP AR 79,80 FIP8,FIP7 FL DRIVER Output Segment Output IC701 RH-iX0224AWZZ:System Microcomputer (IX0224AW) (2/2) Figure 31 BLOCK DIAGRAM OF IC

• Sharp CD-C452, CD-C452/C452C – 20 – Figure 20 SCHEMATIC DIAGRAM (7/10) A B C D E F G H 1 23456 • NOTES ON SCHEMATIC DIAGRAM can be found on page 9. C825 22/25 Q826 KTC3199 GR Q824 2SD2012 Q823 2SD2012 R825 33 C827 47/25 R829 1K R826 220 IC901 STK40704 POWER AMP. C910 2200/50 C909 2200/50 C904 10/50 C911 100/50 C826 47/25 Q825 KTC3199 GR R912 100 R913 100 R915 220K R918 470 C917 47/50 C916 15P R917 56K R922 470 R921 10K R923 56K C924 15P Q902 KRC107 M Q903 KRC1 R 4 R932 18K C923 47P C915 47P R924 1K R916 1K C907 10/50 C912 100/50  C918 47/50 R836 22K C824 0.022 R837 22K

• Sharp CD-C452, NO. PRICE RANK DESCRIPTION PARTS CODENO. PART CODE PRICE RANK DESCRIPTION CD-C452/C452C 702 XHBSD20P05000 J AA Screw,ø2×5mm 703 XBBSD20P03000 J AA Screw,ø2×3mm 704 LX-WZ1070AFZZ J AA Washer,ø1.5×ø3.8×0.25mm M1 92LMTR1858CASY J AS Motor with Chassis [Disc] M2 92LMTR1854BASY J AP Motor with Gear [Sled] SW4 QSW-F9001AW01 J AD Switch,Leaf Type [Pickup In] CABINET PARTS 201 GCAB-1044AWSA J AM Cabinet,CD Player Base 202 GCAB-1050AWSA J AP Top Cabinet 203 GITAR0330AWSA J AS Back Board [CD-C452] 203 GITAR0349AWSA

• Sharp CD-C452, – 25 – CD-C452/C452C Figure 25 WIRING SIDE OF P.W.BOARD (2/4) 7 8 9 10 11 12 CNP11 TO CD SERVO PWB CNS102 CNS101 AM LOOP ANTENNA TO TAPE MECHANISM CHASSIS FM ANTENNA 123 TO CD SERVO PWB P27 10-H TO TAPE MACHANISM TAPE2 HEAD P26 5-C TO TAPE MACHANISM TAPE1 HEAD P26 4-C R508 R504 R510 IC501 R501 R503 R502 R521 R520 R118 R112 R168 R166 R162 R101 R108 C102 R107 R117 R160 R113 R114 C101 1 2 3 1 6 RD CNS11 WH GY WH GY WH RD WH GY WH GY WH 1 2 3 4 5 6 1 2 3 4 5 6 7 R110 C108 C107 C106 R167 R106 R104 R103 R105 R140 C132

• Sharp CD-C452, CD-C452/C452C – 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 pinched or that hardware is not lodged between the chassis and other metal parts in the audio product. 2. Inspect all protective devices such as insulating materials, cabinet, terminal board, adjustm

• Sharp CD-C452, CD-C452/C452C – 10 – Figure 9 CABINET EXPLODED VIEW (1/2) A B C D E F G H 1 23456 CD-C452/C452C SHARP PWB-A1 249 249-1 619x2 249-2 613x2 244-2244 244-7 244-5 244-6 244-11 244-10 244-4 244-17 244-3 244-17 616 244-9 244-16 244-14 244-8 244-15 244-13 240 244-12 244-1 220 611 PWB-A2 PWB-A3 TAPE MECHANISM Silicon Grease PWB-B Silicon Grease 611 239 617x2 615x3 617x3 220 615x5 254 (254-1,254-2, 254-3,254-4, 254-5,254-6, 254-7,254-8) 227 252 M901 608x2 208 215 FL701 615x9 619x11 255 256 256-1 256-2 209 606 606 606 606 250-1 250-2 619x2 619 605 605 248x4 248x4 248x2 60

• Sharp CD-C452, – 5 – CD-C452/C452C MINI COMPONENT SYSTEM Quick-Guide Guía rápida Preparation for use Preparación para su uso Turning the power on and off Conexión y desconexión de la alimentación Remote control Control remoto RIGHT RATED SPEAKER IMPEDANCE: 6 OHMS MIN. LEFT SPEAKERS FM AM LOOP ANTENNA POWER POWER 15 15 Sound control Control del sonido VOLUME UP • • • X-BASS DOWN • VOLUME DEMO EQUALIZER EQUALIZER MODE ● FM Antenna ● AM Loop Antenna Red Black Red Black ● AC 120 V, 60 Hz ● 2 "AA" batteries ● Batteries are not included. Rem

• Sharp CD-C452, – 29 – CD-C452/C452C QS7777PF 123456789101112 13 14 15 16 17 18 19 20 21 22 23 24 QXAC4 QXAC3 QXAC2 QXAC1 FLOUT FROUT COUT RLOUT RROUT VDD P/S BYP 48 47 46 45 44 43 42 41 40 39 38 37 QXDC2 QXDC3 QXDC4 FLIN FRIN CIN SUBIN RLIN RRIN MSC4 MSC5 MSC6 36 35 34 33 32 31 30 29 28 27 26 25 VREFOUT QXDC1 QXCC4 QXCC3 QXCC2 QXCC1 VCC QXBC5 QXBC4 QXBC3 QXBC2 QXBC1 QXAC5 VREFIN MSC3 MSC2 MSC1 GND PSAVE/STRB MUTE/SCL SPREAD/SDA AC AR MO IC3 VHiM56748FP-1: Focus/Tracking/Spin/Slide Driver (M56748FP) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 1

• Sharp CD-C452, – 3 – CD-C452/C452C NAMES OF PARTS Rear Panel 1. AC Power Input Socket 2. FM/AM Loop Aerial Socket 3. Video/Auxiliary (Audio Signal) Input Sockets 4. Rear Output Socket 5. Center Output Socket 6. 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. (CD/TUNER) Memory Indicator 11. FM Stereo Mode Indicator: ST 12. FM Stereo Indicator: 13. (CD) Repeat Indicator: 14. (CD) Play Indicator: 15. (CD) Pause Indicator:

• Sharp CD-C452, CD-C452/C452C – 16 – No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without prior written permission of the publisher. SHARP CORPORATION Communication Systems Group Quality & Reliability Control Center Higashihiroshima, Hiroshima 739-0192, Japan Printed in Japan A9804-2582SS•IS•M COPYRIGHT © 1998 BY SHARP CORPORATION ALL RIGHTS RESERVED. SC•SL•LAG

• Sharp CD-C452, CD-C452/C452C – 26 – Figure 26 WIRING SIDE OF P.W.BOARD (3/4) A B C D E F G H 1 23456 R CNPM1 CNPM2 12 12 FWM1 FWM2 SWM3 SWM4 F. A. S F. P. 123456789101112 3 4 2 1 PHM1 1 2 3 4 5 6 7 8 9 RD CNSM1 TO DISPLAY PWB P24 5-D MM1 TAPE MOTOR(254-7) WH BK SOLM1 SOLENOID (254-8) + - SWM5 CAM BK WH TAPE MECHANISM PWB-D POWER PWB-B WH PK BK TAPE 1 PLAYBACK HEAD(254-6) TAPE 2 ERASE HEAD(254-5) RECORD/PLAYBACK HEAD(254-6) YL WH BL PK WH BK GY GYGY BL CNS102 CNS101 YL WH BK PK WH BK 7654321231 WH BK PK CNP102 TO MAIN PWB P25 12-F TO MAIN PWB�

• Sharp CD-C452, – 1 – CD-C452/C452C No. S4825CDC452// Illustration: CD-C452/C452C CONTENTS Page IMPORTANT SERVICE NOTES (For U.S.A. Only) .......................................................................................................... 2 SPECIFICATIONS .............................................................................................................................................................2 NAMES OF PARTS .......................................................................................................................................

• Sharp CD-C452, CD-C452/C452C – 10 – 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

• CD-C452/C452C – 22 – A B C D E F G H 1 23456 • NOTES ON SCHEMATIC DIAGRAM can be found on page 9. Figure 22 SCHEMATIC DIAGRAM (9/10) 3 2 1 7 6 5 4 3 2 1 TAPE2 RECORD/ PLAYBACK HEAD ERASE HEAD R-CH L-CH TAPE1 PLAYBACK HEAD L-CH R-CH IC302 LC72131 PLL CONTROLLER C302 18P (CH) C395 100P T302 R382 82 C309 6.8P (UJ) D301 1SS133 VD303

• Sharp CD-C452, NO. PRICE RANK DESCRIPTION PARTS CODENO. PART CODE PRICE RANK DESCRIPTION CD-C452/C452C R312 VRD-MN2BD681J J AA 680 ohms,1/8W R314 VRD-MN2BD103J J AA 10 kohm,1/8W R316 VRD-MN2BD472J J AA 4.7 kohms,1/8W R317 VRD-ST2EE821J J AA 820 ohms,1/4W R320 VRD-ST2CD103J J AA 10 kohm,1/6W R321 VRD-MN2BD121J J AA 120 ohms,1/8W R323 VRD-MN2BD104J J AA 100 kohm,1/8W R340 VRD-ST2CD473J J AA 47 kohms,1/6W R347 VRD-MN2BD392J J AA 3.9 kohms,1/8W R348 VRD-MN2BD333J J AA 33 kohms,1/8W R349 VRD-MN2BD152J J AA 1.5 kohms,1/8W R350 VRD-ST2CD473J J AA 47 kohms,1/6W R352 VRD-MN2BD153J J AA 15 kohms,1/8W R356 VRD-ST2CD103J J AA 10 kohm,1/6W R357,358 VRD-MN2BD332J J AA 3.3 kohms,1/8W R359,360 VRD-MN2BD272J J AA 2.

• Sharp CD-C452, – 27 – CD-C452/C452C Figure 27 WIRING SIDE OF P.W.BOARD (4/4) 7 8 9 10 11 12 • The numbers 1 to 12 are waveform numbers shown in page 10. + - + - PICK UP IN SLED MOTOR DISC MOTOR M2 CNP3A SW4 M1 + - 1 2 3 4 5 6 BL CNS801 RD 21 CNS5 2 1 2 1 CNS10 WH RD GY WH BR WH GY OR WH GY 10 1 BIM5 6 9 8 7 6 5 4 3 2 1 SW2 MECHA UP SW1 OPEN/CLOSE M3 T/T UP/DOWN LOADING SW3 DISC NUMBER CNS1B CNS1A CNS2BCNS2A CNS3BCNS3A BL YL PK WH BK GY RD WH GY WH GY WH GY WH RD WH GY WH GY WH BL PK WH YL BK 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 1 2 3 4 5 PICKUP UNI

• Sharp CD-C452, CD-C452/C452C – 12 – A B C D E F G H 1 23456 Figure 11 SPEAKER EXPLODED VIEW CP-C452 2.2µF TWEETER SP3 (L-CH) SP4 (R-CH) TWEETER SP3 (L-CH) SP4 (R-CH) SUPER TWEETER SP5 (L-CH) SP6 (R-CH) SUPER TWEETER SP5 (L-CH) SP6 (R-CH) WOOFER SP1 (L-CH) SP2 (R-CH) WOOFER SP1 (L-CH) SP2 (R-CH) Capacitor Capacitor Capacitor 901 900 902 903x2 907x2 907x2 906x4 903x2 904 (SP5,6) SP3,4 SP1,2 909 908 910 905 RED YELOW BLACK BLACK – 11 –

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