Sharp XL-1200 Service Manual
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Sharp XL-1200 Service Manual

Sharp XL-1200 Service Manual

Compact audio system
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See also: Operating Manual
IMPORTANT SERVICE NOTES (FOR U.S.A. ONLY) ..................................................................................................... 2
SPECIFICATIONS ............................................................................................................................................................ 2
NAMES OF PARTS .......................................................................................................................................................... 3
OPERATION MANUAL ..................................................................................................................................................... 5
DISASSEMBLY ................................................................................................................................................................. 7
NOTES ON SCHEMATIC DIAGRAM ............................................................................................................................... 9
TYPES OF TRANSISTOR AND LED ................................................................................................................................ 9
BLOCK DIAGRAM .......................................................................................................................................................... 10
SCHEMATIC DIAGRAM ................................................................................................................................................. 14
WIRING SIDE OF P.W.BOARD ...................................................................................................................................... 22
WAVEFORMS OF CD CIRCUIT ..................................................................................................................................... 26
TROUBLESHOOTING .................................................................................................................................................... 27
PARTS GUIDE/EXPLODED VIEW
SERVICE MANUAL
CONTENTS

SHARP CORPORATION

- 1 -
COMPACT AUDIO SYSTEM
MODEL
XL-1200 Compact Audio System consisting of XL-1200 (main
unit) and CP-XL1200U (speaker system).
XL-1200C
MODEL
XL-1200C Compact Audio System consisting of XL-1200C
(main unit) and CP-XL1200U (speaker system).
• In the interests of user-safety the set should be restored to its original
condition and only parts identical to those specified should be used.
This Service Manual is for the XL-1200/1200C, which is a minor-
modification model of the XL-3000/3000C. This manual, therefore,
describes only the changed points from the service manual. Please
refer to the XL-3000/3000C service manual (No. S4122XL3000U/)
together with this manual.
XL-3000/3000C
ADJUSTMENT ............................................................... 10
TEST MODE .................................................................. 11
FUNCTION TABLE OF IC .............................................. 44
LCD SEGMENT ............................................................. 53
This document has been published to be used
for after sales service only.
The contents are subject to change without notice.
XL-1200/1200C
No. S4127XL1200//
XL-1200
Page
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Summary of Contents for Sharp XL-1200

  • Page 1: Table Of Contents

    • In the interests of user-safety the set should be restored to its original condition and only parts identical to those specified should be used. This Service Manual is for the XL-1200/1200C, which is a minor- modification model of the XL-3000/3000C. This manual, therefore, describes only the changed points from the service manual.

  • Page 2: Important Service Notes (For U.s.a. Only)

    XL-1200/1200C 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.

  • Page 3: Names Of Parts

    XL-1200/1200C NAMES OF PARTS Front panel 1. CD Compartment 2. Volume Up and Down Butto ns 3. Power Button 4. Function Selector Button 5. Memory/Set Button 6. Bass/Treble Selector Button 7. CD Play or Pause, Tuning Up Button 8. CD Stop, Tuning Down Button 9.

  • Page 4: Speaker System

    XL-1200/1200C Speaker grilles are removable: Make sure nothing comes into contact with the speaker diaphragms when you remove the speaker grilles. Placing the speaker system: There is no distinction between the right and the left speakers. Left speaker Right speaker Notes: The speakers are magnetically shielded.

  • Page 5: Operation Manual

    XL-1200/1200C OPERATION MANUAL Setting the Clock Within 1 minute, press the PRESET ( ) button to adjust the hour and then press the MEMORY button. When the 12-hour display is selected, "AM" will change au- tomatically to "PM". Within 1 minute, press the PRESET ( ) button to adjust the minutes and then press the MEMORY button.

  • Page 6: System Connections

    XL-1200/1200C Accessories Turn on your system Accesorios Conexión de la alimentación de su sistema Press the POWER button to turn the power on. Pulse el botón POWER para conectar la alimentación. AC power cord × 1 Remote control × 1 AM loop antenna ×...

  • Page 7: Disassembly

    XL-1200/1200C DISASSEMBLY STEP REMOVAL PROCEDURE FIGURE Caution on Disassembly Follow the below-mentioned notes when disassembling Rear panel/Terminal PWB 1. Screw ....(A1) x7 2. Socket ....(A2) x3 the unit and reassembling it, to keep it safe and ensure 3. Screw ....(A3) x4...
  • Page 8 XL-1200/1200C Tuner PWB Power PWB (D1) x1 (C1) x1 ø3 x8mm (E1) x1 Holder PWB (C2) x1 (C2) x1 Tuner PWB (E2) x7 ø3 x8mm Main PWB Bottom Cabinet (C1) x1 (H4) x2 Hook ø3 x6mm Gear Box ø2.5 x10mm...

  • Page 9: Removing And Reinstalling The Main Parts

    XL-1200/1200C NOTES ON SCHEMATIC DIAGRAM • Resistor: • The indicated voltage in each section is the one measured To differentiate the units of resistors, such symbol as K and by Digital Multimeter between such a section and the chas- M are used: the symbol K means 1000 ohm and the symbol sis with no signal given.

  • Page 10: Adjustment

    XL-1200/1200C FROM DISPLAY PWB TUNER PWB 9 8 7 6 5 4 3 2 8 9 10 11 12 13 14 15 11 10 LED PWB CNP307 CNP702 D801 Q901 Q902 M_GND SWITCH PWB Q908 Q907 SW802 CD LID OPEN/CLOSE...

  • Page 11: Test Mode

    XL-1200/1200C FROM DISPLAY PWB 4 3 2 1 10 11 12 CNP703 MAIN PWB R-CH OUT AUX R TUN R CD R LOGIC CD L TUN L IC401 AUX L LC75342M L-CH OUT A_12V FUNCTION/VOLUME EQUALIZER IC901 MUTE LA4282 Q601 POWER AMP.

  • Page 12: Lcd Display

    XL-1200/1200C Tracking fL FM MUTE T302 LEVEL VD301 VR351 75ohms T306 AM Band SO301 Coverage fL ANTENNA TERMINAL IC301 BAND PASS TA7358AP FILTER FM FRONT END BF301 AM IF FM IF FM IF AM IF FM IF Q306 CF303 CF302...
  • Page 13 XL-1200/1200C TUNER PWB SWITCHING Q351 X351 456kHz 15 14 AM IF CF352 FM ST ZD351 VOLTAGE REGURATOR 17 16 15 14 13 12 A_12V Q360 FM +B D_GND TUN_L TUN_R A_GND CNS307 DISPLAY PWB LCD701 LCD DISPLAY CNW702 CNS702 CLID_DW...

  • Page 14: Schematic Diagram

    XL-1200/1200C P19 12-E P21 12-F CNS307 CNS703 TUNER PWB-A2 11 10 9 8 7 6 5 4 3 2 1 CNP307 TERMINAL PWB-A4 L802 CNP805 C851 0.82µH 100/10 J801 DIGITAL OUT C852 0.0022 C853 0.0047 CFW852 TO CHASSIS GND LUG(205)
  • Page 15 XL-1200/1200C P21 12-F FROM CNS703 DISPLAY PWB-A3 MAIN PWB-A1(1/2) 10 11 12 CNP703 CD SIGNAL FM SIGNAL C408 10/16 R436 C404 10/16 R416 C402 AUX R 10/16 C433 IC401 220P AUX L LC75342M FUNCTION/ C432 VOLUME 220P EQUALIZER C401 C431...
  • Page 16 XL-1200/1200C 4.1V IC805 TA7291S CD LID MOTOR DRIVER DIMMER LIGHT R873 PU_IN 3.3K CD_STB R837 R836 R879 R835 3.3K 4.9V Q908 R834 R874 Q802 KRC102 M 2.2K R833 KRC102 M R832 R831 4.5V R830 CLID_SW CLID_PRO C872 CLID_UP CLID_DW CNP702 C861 0.0022...
  • Page 17 XL-1200/1200C MAIN PWB-A1(2/2) 10.7V 11.4V Q902 KTA1266 GR Q901 R902 KRC102 M 11.4V R914 CNS701 CNW701 4.1V R901 2.2K D801 DB5306X CNP701 LED PWB-A6 11.4V 10.6V CNS806 CNP806 R905 CD SIGNAL Q907 KTA1266 GR SW802 CD LID OPEN/CLOSE R904 Q908 2.2K...
  • Page 18 XL-1200/1200C T302 FM Mute Tracking Level VR351 C302 10K(B) 0.001 L353 C329 D301 0.022 1N4148 C335 560P D302 1N4148 R323 R336 5.6K T306 AM Band Coverage IC301 TA7358AP FM FRONT END BF301 BAND PASS FILTER R306 R316 C318 FM IF...
  • Page 19 XL-1200/1200C TUNER PWB-A2 AM SIGNAL FM SIGNAL Q351 KRC104 M 3.7V 4.7V (0V) C371 (0V) R361 R350 1/50 5.6K 2.7K C367 1/50 R362 C372 1/50 5.6K 2.3V 15 14 R366 2.2K C358 1/50 C350 AM IF 0.022 CF352 C357 2.2/50 C356 0.001...
  • Page 20 XL-1200/1200C SW727 FUNCTION SW726 R706 PRESET DOWN 3.9K SW718 VOLUME DOWN SW725 R718 1.5K CD STOP R707 SW713 TUNING DOWN 2.7K VOLUME UP R708 2.2K R719 SW712 1.2K SW722 CD PLAY/ PAUSE R710 TUNING UP MEMORY/SET 2.7K 99 98 97 96 95 94 93 92 91...
  • Page 21 XL-1200/1200C DISPLAY PWB-A3 LCD701 FL DISPLAY 94 93 92 91 90 89 88 87 86 85 84 83 82 81 80 79 78 77 76 SEG25 SEG26 2.5V SEG27 2.5V SEG28 2.5V SEG29 2.5V SEG30 CNW702 CNS702 2.5V CLID_DW SEG31 CLID_UP 2.5V...

  • Page 22: Wiring Side Of P.w.board

    XL-1200/1200C CFW451 C413 TO CHASSIS GND LUG(205) TERMINAL PWB-A4 R408 LEFT R406 SO401 VIDEO/ AUX IN RIGHT R407 CNS607 SO601 WOOFER FROM R636 R405 SPEAKER POWER TERMINAL TRANSFORMER CNP607 CNW704 P24 5-D R410 CFW452 C410 R411 C414 D659 C659 LEFT...
  • Page 23 XL-1200/1200C CNS804 CNW804 MAIN PWB-A1 M801 CD LID OPEN/CLOSE MOTOR R436 C416 SWITCH PWB-A5 C418 R438 R440 C408 SW802 C424 CNP801 R401 CD LID R435 C422 OPEN/CLOSE CNW607 C407 R422 R437 C426 R418 C433 C404 C432 C415 R416 C402 C660...
  • Page 24 XL-1200/1200C TUNER PWB-A2 CNP307 TO P22,23 6,7-G TP301 2 3 4 5 6 7 8 1011 X352 R374 CNS307 C397 R373 Q360 R379 SO301 D308 C391 R391 C384 C392 R372 C380 ANTENNA R371 R392 TERMINAL R386 R365 C395 R380 R387...
  • Page 25 XL-1200/1200C LMP701 CNP307 TO MAIN PWB-A1 P22,23 6,7-G 3 4 5 6 7 8 1011 LAMP PWB-A7 Q706 CNS707 R708 R792 E C B Q707 Q708 SW718 R781 R779 R780 CNS703 R742 R757 R720B R758 TO MAIN PWB-A1 C373 CNP703...

  • Page 26: Waveforms Of Cd Circuit

    XL-1200/1200C WAVEFORMS OF CD CIRCUIT NO DISC FOCUS SEARCH STOP PLAY TMAX IC802 48pin IC802 30pin SBOK IC804 26pin IC802 12pin IC802 55pin IC804 25pin FOCUS SEARCH TOC IL STOP PLAY IC802 57pin IC802 46pin IC802 43pin IC802 49pin IC802 46pin...

  • Page 27: Troubleshooting

    XL-1200/1200C TROUBLESHOOTING When the CD does not function When the CD section does not operate when the objective lens of the optical pickup is dirty, this section may not operate. Clean the objective lens, and check the playback operation. When this section does not operate even after the above step is taken,check the following items.
  • Page 28 XL-1200/1200C Make sure that the disc is normal, and set the CD TEST MODE (STEP 1). Is the measured voltage as specified in circuit diagram? Check the main unit power supply circuit. Is "Er-CD01" displayed"? Move the pickup to most internal circumference side of disc.
  • Page 29 XL-1200/1200C • Laser failure. Is +6.2V applied to the emiter of Q861 ? Check the PWB pattern between emiter of Q607 and emiter of Q861. Check the peripheral parts of IC804 and Q861. Is +5V applied to the collector of Q861 ?
  • Page 30 XL-1200/1200C • Focus servo sawtooth wave failure. IC802 is faulty. Is sawtooh wave output to the pin 48 (FOO) of IC802 ? 1.5~2.5sec Check the PWB pattern between emiter of Q607 and IC804. Is +6.2V applied to the pins 21 and 22 (VCC) of IC804 ?
  • Page 31 XL-1200/1200C • HF error. Optical pickup failure. Is output (tracking error signal) obtained at the pins 46 (TEI) Is output obtained at the pins 3 and and 47 (TEZI) of IC802 the CD TEST MODE "STEP 4" is 8 of CNP802/CNW3.
  • Page 32 XL-1200/1200C • Track search failure Does the sled motor run in FF/REW state when the SERVO Check as stated in item "SLED MOTOR OPERATION FAILURE". TEST MODE "STEP1" is set? Is the following wave output to the pin 49 (TRO) of IC802 IC802 failure.

  • Page 33: Model Xl

    XL-1200/1200C PARTS GUIDE COMPACT AUDIO SYSTEM XL-1200 MODEL XL-1200 Compact Audio System consisting of XL-1200 (main unit) and CP-XL1200U (speaker system). XL-1200C MODEL XL-1200C Compact Audio System consisting of XL-1200C (main unit) and CP-XL1200U (speaker system). “HOW TO ORDER REPLACEMENT PARTS”...

  • Page 34: Motor Driver 2

    XL-1200/1200C PRICE PRICE DESCRIPTION PARTS CODE DESCRIPTION PARTS CODE RANK RANK INTEGRATED CIRCUITS TRANSFORMERS IC301 VHITA7358AP-1 AG FM Front End,TA7358AP IC302 VHILC72131/-1 AP PLL (Tuner),LC72131 T302 RCILA0007SJZZ AG AM Tracking IC303 VHILA1832S/-1 AN FM IF Det./FM Mpx./AM IF, T304 RCILI0005SJZZ...
  • Page 35 XL-1200/1200C PRICE PRICE DESCRIPTION DESCRIPTION PARTS CODE PARTS CODE RANK RANK AB 0.047 µF,25V AA 0.01 µF,25V C331 VCKYCY1EF473Z C712 VCKYCY1EB103K AB 0.022 µF,50V AB 10 µF,16V,Electrolytic C332 VCKYPA1HF223Z C713 RC-GZA106AF1C C714 VCKYCY1HB561K J AA 560 pF,50V C334 VCCUPA1HJ270J AA 27 pF (UJ),50V AB 100 µF,10V,Electrolytic...
  • Page 36 XL-1200/1200C PRICE PRICE PARTS CODE DESCRIPTION PARTS CODE DESCRIPTION RANK RANK R80G VRD-ST2CD683J AA 68 kohms,1/6W R661,662 VRD-ST2EE331J AA 330 ohms,1/4W R101,102 VRD-ST2CD102J AA 1 kohm,1/6W R685 VRD-ST2CD103J AA 10 kohm,1/6W R104 VRS-CY1JB563J AA 56 kohms,1/16W R686 VRD-ST2CD473J AA 47 kohms,1/6W...
  • Page 37 QCNCM017BSJZZ J AD Plug,3Pin CNP701 QCNCM999BAFZZ J AD Plug,2Pin GCABA1062SJSA AM Front Cabinet CNP702 QCNCM999QAFZZ J AC Plug,15Pin GCABB1062SJSA AL Bottom Cabinet [XL-1200] CNP703 QCNCM999MAFZZ J Plug,12Pin GCABB1066SJSA Bottom Cabinet [XL-1200C] CNP704 QCNCM004BAFZZ J AB Plug,2Pin GCOVA1012SJSA AH Rear Panel [XL-1200]...
  • Page 38 Remote Control GCABB1064SJSA Battery Lid,Remote Control TINSE0067SJZZ AE Operation Manual [XL-1200 for U.S.A.] TINSK0029SJZZ AG Operation Manual [XL-1200C] TINSZ0098SJZZ AD Quick Guide [XL-1200 for U.S.A.] TINSZ0100SJZZ Operation Manual [XL-1200 for Mexico] TINSZ0112SJZZ Caution Sheet P.W.B. ASSEMBLY (Not Replacement Item) PWB-A1~8 DCEKLV030SJ03...
  • Page 39 XL-1200/1200C 308-2 308-1 308-3 704x2 702x2 NM802 307x2 306x2 NM801 NSW801 PWB-C Figure 6 CD MECHANISM EXPLODED VIEW – 6 –...
  • Page 40 XL-1200/1200C 601x2 M801 231x2 605x3 PWB-A6 PWB-A5 604x1 PWB-A7 PWB-A3 602x4 PWB-A8     y z | | 604x4 604x4 y z | PWB-B Silicon PWB-A2    Grease 609x2 y z | | PWB-A8 Silicon T651...
  • Page 41 XL-1200/1200C SP3,4 SP1,2 909x4 Tweeter SP3 (L-CH) SP4 (R-CH) Woofer SP1 (L-CH) SP2 (R-CH) 905x2 Tweeter SP3 (L-CH) SP4 (R-CH) Black White Line Black 905x2 Woofer SP1 (L-CH) SP2 (R-CH) Figure 8 SPEAKER EXPLODED VIEW – 8 –...

  • Page 42: Packing Of The Set (For U.s.a. Only)

    XL-1200/1200C PACKING OF THE SET (FOR U.S.A. ONLY) Setting position of switches and knobs CD Lid CLOSE AC Power Supply Cord Speaker Cord Remote Control FM Antenna Cushion Leg. AM Loop Antenna Bag,Polyethylene SPAKZ0039SJZZ Caution Sheet Quick Guide Operation Manual...
  • Page 43 XL-1200/1200C –MEMO–...

  • Page 44: Function Table Of Ic

    XL-1200/1200C © COPYRIGHT 2001 BY SHARP CORPORATION ALL RIGHTS RESERVED. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any from or by any means, electronic, mechanical, photocopying, recording, or otherwise, without prior written permission of the publisher.

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Xl-1200c

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