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Sharp XL-40H Service Manual
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Sharp XL-40H Service Manual

Sharp XL-40H Service Manual

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Illustration: XL-40H
Safety Precaution For Service Manual .......................................................................................................... 2
Specifications ............................................................................................................................................................ 2
Names Of Parts .......................................................................................................................................................... 3
Operation Manual ..................................................................................................................................................... 5
Disassembly ................................................................................................................................................................. 6
Removing And Reinstalling The Main Parts .................................................................................................... 7
Adjustment .................................................................................................................................................................. 9
Rds ................................................................................................................................................................................ 10
Test Mode ................................................................................................................................................................... 11
Notes On Schematic Diagram ............................................................................................................................. 18
TYPE OF TRANSISTOR AND LED ................................................................................................................................ 18
Waveforms Of Cd Circuit ..................................................................................................................................... 19
Block Diagram .......................................................................................................................................................... 20
Schematic Diagram / Wiring Side Of P.w.board ............................................................................................ 24
Troubleshooting .................................................................................................................................................... 34
Function Table Of Ic .............................................................................................................................................. 40
Lcd Segment .............................................................................................................................................................. 48
Parts Guide/EXPLODED VIEW
SERVICE MANUAL
CONTENTS
SHARP CORPORATION
– 1 –
XL-40H/XL-50H Micro Component System consisting of XL-40H/XL-
50H ( main unit) and CP-XL40H/CP-XL50H (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 document has been published to be used
for after sales service only.
The contents are subject to change without notice.
XL-40H/50H
No. S2007XL40H///
XL-40H
XL-50H
Page

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  • Page 1 No. S2007XL40H/// XL-40H XL-50H XL-40H/XL-50H Micro Component System consisting of XL-40H/XL- 50H ( main unit) and CP-XL40H/CP-XL50H (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.

  • Page 2: Safety Precaution For Service Manual

    XL-40H/50H FOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT, PLEASE REFER TO THE OPERATION MANUAL. SAFETY PRECAUTION FOR SERVICE MANUAL Laser Diode Properties Precaution to be taken when replacing and servicing the Material: GaAIAs Laser Pickup. W avelength: 780 nm...

  • Page 3: Names Of Parts

    XL-40H/50H NAMES OF PARTS XL-40H/50H 1 2 3 5 6 7 8 9 Front panel 1. Timer Indicator 2. Record Indicator 3. Sleep Indicator 4. (CD) Random Indicator 5. (CD/TUNER) Memory Indicator 6. RDS Indicator 12 13 14 15 7. Traffic Programme Indicator 8.
  • Page 4 XL-40H/50H CP-XL40H/50H Speaker section 1. Bass Reflex Duct 2. Full-Range Speaker 3. Speaker Wire XL-40H/50H Remote control 1. Remote Control Transmitter LED Tuner control section 2. Programme Type/Traffic Information Search Button 3. Preset Up/Down Buttons CD control section 4. Clear Button 5.

  • Page 5: Operation Manual

    XL-40H/50H OPERATION MANUAL – 5 –...

  • Page 6: Disassembly

    XL-40H/50H DISASSEMBLY XL-40H/50H Caution on Disassembly Follow the below-mentioned notes when disassembling (A1)x1 Top Cabinet ø3x10mm the unit and reassembling it, to keep it safe and ensure CD PWB (B2)x1 excellent performance: 1. Take cassette tape and compact disc out of the unit.

  • Page 7: Removing And Reinstalling The Main Parts

    XL-40H/50H CP-XL40H/50H Speaker Box STEP REMOVAL PROCEDURE FIGURE (A1x1) Woofer Speaker 1. Front panel ..(A1) x1 2. Screw ....(A2) x4 (A2)x4 ø4x12mm Driver should be pried away from Driver speaker Box. Direction of handle Figure 7-1 REMOVING AND REINSTALLING THE MAIN PARTS...

  • Page 8: Cd Mechanism Section

    XL-40H/50H (E1)x1 How to remove the flywheel (See Fig. 8-1.) Stop Washer Mechanism 1. Remove the belt. Chassis 2. Remove the stop washer (E1) x 1 pc., with a small precision Driver Stop screwdriver to extract the flywheel from the capstan metal.

  • Page 9: Adjustment

    XL-40H/50H ADJUSTMENT TUNER SECTION MECHANISM SECTION • Driving Force Check fL: Low-renge frequency fH: High-renge frequency Torque Meter Specified Value • AM IF/RF Play: TW-2412 Over 80 g Signal generator: 400 Hz, 30%, AM modulated Display Frequency Frequency Setting/ Instrument •...
  • Page 10 For exam- strumental music, and vocal or cho- which is usually US or UK inspired With the XL-40H/XL-50H, you can search for and ple, the stations send their station names, and in- ral works. and in English.

  • Page 11: Test Mode

    XL-40H/50H TEST MODE The test mode applied to this microcomputer has three modes, namely ordinary test mode to be used for adjustment or measurement, aging test mode to be used for aging test, and self-diagnosis test mode for self-inspection in case of final product inspection.
  • Page 12 XL-40H/50H 2. Step 2 Mode When the "PLAY" button is pressed in this mode, the laser lighting command LDON (8400) is sent, and the laser is turned on. Other operations are not performed. If the following buttons are pressed in this state, the operation is performed as follows.
  • Page 13 XL-40H/50H 5. Step 5 Mode The CD initialization operation flow is executed to the end, the mute is set to off, and playback is started. Even when the playback reaches the outermost periphery of disc, the operation does not stop. The LCD display indicates the playback past time as in case of ordinary CD playback.
  • Page 14 XL-40H/50H 3. Preset frequencies for various destinations (random preset memory) BAND Europe 2, 4 Europe 2, 4 BAND BAND Europe 2, 4 FM 87.50 MHz AM 522 kHz 16-25 FM108.00 MHz AM1620 kHz FM106.00 MHz FM 98.00 MHz AM 990 kHz FM 90.00 MHz...
  • Page 15 XL-40H/50H * When the "PRESET UP" button or "PRESET DOWN" button is pressed after completion, the following indication appears. CH indication Frequency indication Time series indication of PS name indication is enabled. (for 2 seconds) (for 2 seconds) (The same as in case of Ordinary)
  • Page 16 XL-40H/50H g) When 01 to 03CH were all used, scan is aborted at the frequency at which filling occurred, and the following indication appears. Number of stored stations -> Indication of stored channel -> Indication of frequency -> Return to initial FM 106.50 MHz (ST)
  • Page 17 OK, OK is indicated. Even any one of keys was not pressed, an error is indicated. In case of OK termination or error termination exit from this mode occurs when the "POWER" button is pressed next time, and the standby mode is set. 1. In case of XL-40H/50H The following 15 buttons are detected as all buttons.

  • Page 18: Notes On Schematic Diagram

    XL-40H/50H 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 19: Waveforms Of Cd Circuit

    XL-40H/50H WAVEFORMS OF CD CIRCUIT NO DISC FOCUS SEARCH STOP PLAY TMAX IC802 48pin IC802 30pin SBOK IC804 26pin IC802 12pin IC804 25pin IC802 55pin FOCUS SEARCH TOC IL STOP PLAY IC802 57pin IC802 46pin IC802 43pin IC802 49pin IC802 46pin...

  • Page 20: Block Diagram

    XL-40H/50H AM LOOP ANTENNA CNP301 FM MUTE LEVEL L341 SWITCHING T302 AM ANT VR351 BALUN VD301-1 10K(B) R_MUTE SVC348S Q351 AM OSC OUT X351 456kHz 14 13 VD301-2 SVC348S IC303 T306 FM IF DET./FM MPX./AM IF AM OSC. LA1832 AM IF...
  • Page 21 XL-40H/50H IC521 X521 RDS CIRUIT 456kHz LC72723M AMP. Q521 A_12V A_12V RDS CLK RDS DATA R-CH OUT REC R CH FM ST TAPE R TO DISPLAY PWB TUN R CD R CD+B P MUTE P-STB IC401 CNS704 LOGIC LC75342M FUNCTION/VOLUME EQUALIZER...
  • Page 22 XL-40H/50H COM3 COM2 COM1 COM0 VLC3 VLC2 VLC1 OSC2 OSC1 X701 8MHz X702 MMOD 32.768kHz SW700 CNS706 VREF CLID_SW SW709-SW710 KEY1 DOWN SW711-SW717 KEY2 D701-709 CNP706 MODEL SW721-SW728 CLID_PRO D_GND TAPE_SW CFW701 VREF+ 26 27 28 29 30 31 32 3...
  • Page 23 XL-40H/50H LCD701 LCD DISPLAY CL ID_SW COM3 SEG25 CD_RES COM2 SEG26 COM1 SEG27 BUCK COM0 SEG28 BUS3 VLC3 SEG29 TO CD PWB BUS2 VLC2 SEG30 BUS1 VLC1 SEG31 BUS0 SEG32 CD_STB OSC2 SEG33 PU_IN OSC1 BUCK CNS702 IC701 BUS3 IX0026SJ...
  • Page 24 XL-40H/50H AM TRACKING fL LOW PASS FILTER AM ANT SWITCHING C330 FM MUTE L354 12P(CH) LEVEL Q351 R358 C343 KRC104 M 8.2K VR351 C332 C302 C331 VD301 10K(B) 0.022 0.001 0.047 4.7V SVC348S T302 (0V) C371 L353 R361 C329 1/50 D301 0.022...
  • Page 25 XL-40H/50H R529 R528 C527 R534 C526 2.5V 16 15 14 13 12 11 10 22P(CH) C537 0.022 AMP. R533 IC521 LC72723M X521 R532 456kHz RDS CIRCUIT L521 C525 C521 2.2mH C536 C524 22P(CH) 10/16 0.022 560P D521 C535 1N4148 47/16...
  • Page 26 XL-40H/50H DISPLAY PWB-A2 SW728 VOLUME/JOG SW727 SW717 R705 FUNCTION PTY.PI 5.6K SW726 R706 SW716 R715 TUNING DOWN 3.9K 3.9K SW725 SW715 R716 R707 ASPM STOP/ CLEAR 2.7K 2.7K R708 SW724 SW714 R717 2.2K REC. PAUSE DISPLAY MODE 2.2K LED PWB-A4...
  • Page 27 XL-40H/50H LCD701 LCD DISPLAY 90 89 88 87 86 85 84 83 82 81 80 79 78 77 76 SEG24 SEG25 2.5V SEG26 2.5V 2.5V SEG27 2.5V SEG28 2.5V SEG29 2.5V SEG30 BI702 CNS702 2.5V SEG31 CLID_SW 2.5V SEG32 CD_RES 2.5V...
  • Page 28 XL-40H/50H CD SIGNAL PU_IN CD_STB BUS0 BUS1 BUS2 BUS3 BUCK CLID_SW R813 L803 10µH R814 R817 R818 3.3K C824 0.056 R812 C823 3.3K C819 C821 0.01 C825 0.056 C833 C834 470P 470P C822 220/10 C818 X801 16.93MHZ R815 R816 C817 R811 2.2K...
  • Page 29 XL-40H/50H CD PWB-A3 CFW807 SW801 OPEN/CLOSE OPEN/CLOSE SWITCH PWB-A6 C861 0.001 CD_L A_GND CD_R L804 TO MAIN PWB 2.2µH M_GND CNP605 M_12V P25 7-H D_GND Q861 CD_6R2V L803 2SB562 C 10µH 6.3V L801 (L804/R843 10µH Serial No. 003xxxxx~) 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1...
  • Page 30 XL-40H/50H ANTENNA TERMINALS SO601 SPEAKER AM LOOP ANTENNA SO301 ANTENNA TERMINALS FM 75 OHMS LEFT RIGHT CNP301 C376 R346 (Serial No. L342 C618 C637 C617 003xxxxx~) Q301 L341 C633 C632 L602 C346 L601 C341 R631 C636 C640 C347 C345 R370...
  • Page 31 XL-40H/50H DISPLAY PWB-A2 TO MAIN PWB P30 6-H CNP703 R746 R743 R778 R747 R775 1 2 3 4 5 6 7 8 9 10 11 R741 R779 R740 CNS703 CNS702 CLOCK/TIMER/ R780 SW722 SLEEP R739 SW709 BASS/ TREBLE ON/STAND/BY R749...
  • Page 32 XL-40H/50H PICKUP UNIT CD MOTOR PWB-C NSW801 PICK UP IN NM802 SPINDLE MOTOR NM801 SLED MOTOR L804/R843 OPEN/CLOSE (Serial No. 003xxxxx~) TO MAIN PWB SWITCH PWB-A6 CFW807 P30 1-E CNP605 SW801 CNS803 CNS605 1 2 3 4 5 6 7...

  • Page 33: Tape Mechanism

    XL-40H/50H TO MAIN PWB FROM CNP652 DISPLAY PWB P30 1-C P31 12-G CNS707 CNS652 BI652 CNP681 R685 R686 Q683 E C B C688 LF651 R683 T651 MAIN POWER D685 TRANSFORMER C689 R684 TO MAIN CHASSIS RLY681 B C E ZD682...

  • Page 34: Troubleshooting

    XL-40H/50H 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 35 XL-40H/50H 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 36 XL-40H/50H • Laser failure. Is +6.2V applied to the emiter of Q861 ? Check the PWB pattern between pin 16 of CNS602 and emiter of Q861. Check the peripheral parts of IC804 and Q861. Is +5V applied to the collector of Q861 ?
  • Page 37 XL-40H/50H • 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 pin 16 of CNS602 and IC804. Is +6.2V applied to the pins 1 and 30 (VCC) of IC804 ?
  • Page 38 XL-40H/50H • HF error. Is output (tracking error signal) obtained at the pins 46 (TEI) Optical pickup failure. Is output obtained at the pins 2 and and 47 (TEZI) of IC802 the CD TEST MODE "STEP 4" is 5 of BI802/CNS802 changed to "STEP 5"?
  • Page 39 XL-40H/50H • Track search failure Check as stated in item "SLED MOTOR OPERATION FAILURE". Does the sled motor run in FF/REW state when the SERVO TEST MODE "STEP1" is set? Is the following wave output to the pin 49 (TRO) of IC802 IC802 failure.

  • Page 40: Function Table Of Ic

    XL-40H/50H FUNCTION TABLE OF IC IC401 VHiLC75342M-1: Function/Volume Equalizer (LC75342M) Pin No. Port Name Function Serial data and clock input pin for control. Chip enable pin. Data written into an internal latch in a timing of [H] -> [L]. Each analog switch is activated.
  • Page 41 XL-40H/50H IC401 VHiLC75342M-1: Function/Volume Equalizer (LC75342M) TEST VSS CE CL VDD Vref LOUT ROUT LBASS2 RBASS2 LBASS1 RBASS1 LTRE RTRE RSEL0 LSEL0 14 15 16 17 Figure 41 BLOCK DIAGRAM OF IC – 41 –...
  • Page 42 XL-40H/50H IC701 RH-iX0026SJZZ: System Microcomputer (IX0026SJ) (1/2) Terminal Name Input/Output Function Pin No. COM3-COM0 Output LCD common output terminal. VLC3-VLC1 — LCD power supply terminal. — Microcomputer power supply +5V. OSC2 Output Oscillator ground terminal for main clock. f=8MHz OSC1 Input Oscillator ground terminal for main clock.

  • Page 43: Lcd Segment

    XL-40H/50H IC701 RH-iX0026SJZZ: System Microcomputer (IX0026SJ) (2/2) Terminal Name Input/Output Pin No. Function SEG46 P63/A3 Output Electric JOG dial UP. SEG45 P64/A4 Output Electric JOG dial DOWN. SEG44 P65/A5 Output Electric CD lid OPEN. SEG43 P66/A6 Output Electric CD lid CLOSE.
  • Page 44 XL-40H/50H IC801 VHiTA2109F/-1:Servo Pre Amp. (TA2109F) Pin No. Terminal Name Input/Output Function — Power voltage terminal Input Main beam amp input terminal Input Main beam amp input terminal Input Sub-beam amp input terminal Input Sub-beam amp input terminal Input Monitor photodiode amp input terminal...
  • Page 45 XL-40H/50H IC801 VHiTA2109F/-1:Servo Pre Amp. (TA2109F) 15kΩ 30kΩ 7.67kΩ 10kΩ 15kΩ SBAD 10kΩ 20µA 50kΩ 20pF 10kΩ 10kΩ 36pF 21kΩ 29kΩ 7.96kΩ 2VRO 10kΩ 24kΩ 24kΩ 3 STATE 21kΩ 21kΩ DET. 50µA 20kΩ RFRP 47kΩ 12kΩ 1.74kΩ 12kΩ 1kΩ RFIS 65µA...
  • Page 46 XL-40H/50H IC802 VHiTC9462F/-1: Servo/Signal Control (TC9462F) (1/3) Function Port Name Input/Output Pin No. TEST0 Input Test mode terminal. To be opened usually. /HSO Output Playback speed mode flag output terminal. /UHSO Output /UHSO /HSO Playback speed x1 speed playback x2 speed playback x4 speed playback —...
  • Page 47 XL-40H/50H IC802 VHiTC9462F/-1: Servo/Signal Control (TC9462F) (2/3) Function Port Name Input/Output Pin No. AVDD — Analog system power terminal. RFCT Input RFRP signal center level input terminal. RFZI Input RFRP zero cross input terminal. RFIP Input RF ripple signal input terminal.
  • Page 48 XL-40H/50H IC802 VHiTC9462F/-1: Servo/Signal Control (TC9462F) (3/3) Function Port Name Input/Output Pin No. DVDD — D/A converting section power terminal. — Reference voltage terminal. Output L channel data forward rotation output terminal. DVSL — L channel D/A converting section power terminal.
  • Page 49 XL-40H/50H IC804 VHiLA6541D/-1: Focus/Tracking/Spin/Sled Driver (LA6541D) Pin No. Port Name Function Power (short-circuited to pin 30) MUTE All BTL AMP output ON/OFF VIN1 BTL AMP1 input terminal BTL AMP1 input terminal (for gain adjustment) BTL AMP1 output terminal (noninversion side)
  • Page 50 XL-40H/50H LCD701: RV-LX0007SJZZ LCD Display 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...

  • Page 51: Parts Guide

    XL-40H/50H PARTS GUIDE XL-40H MODEL XL-50H XL-40H/XL-50H Micro Component System consisting of XL-40H/XL- 50H ( main unit) and CP-XL40H/CP-XL50H (speaker system). “HOW TO ORDER REPLACEMENT PARTS” To have your order filled promptly and correctly, please furnish the For U.S.A. only following information.
  • Page 52 XL-40H/50H PRICE PRICE PARTS CODE DESCRIPTION PARTS CODE DESCRIPTION RANK RANK FILTERS XL-40H/50H CF301,302 RFILF0072AFZZ AG FM IF INTEGRATED CIRCUITS CF351 RFILF0003AWZZ AK FM IF L354 RFILL0001AWZZ AE Low Pass Filter IC101 VHIBA3126N/-1 AF Head Selector,BA3126N LF651 RCILZ0002SJZZ AG Line Filter...
  • Page 53 XL-40H/50H PRICE PRICE PARTS CODE DESCRIPTION PARTS CODE DESCRIPTION RANK RANK AA 0.022 µF,25V C350,351 VCKYTV1EF223Z C693,694 VCKYPA1HB331K AA 330 pF,50V AB 10 µF,16V,Electrolytic AA 0.001 µF,50V C352 RC-GZA106AF1C C695 VCKYPA1HB102K AA 0.022 µF,25V AB 0.01 µF,16V C353,354 VCKYTV1EF223Z C696 VCKYPA1HF103Z AA 0.001 µF,50V...
  • Page 54 XL-40H/50H PRICE PRICE DESCRIPTION PARTS CODE PARTS CODE DESCRIPTION RANK RANK R7B3 VRS-TV2AB222J AA 2.2 kohms,1/10W R391,392 VRD-ST2EE391J AA 390 ohms,1/4W R7D1 VRS-TV2AB820J AA 82 ohms,1/10W R393 VRS-TV2AB102J AA 1 kohm,1/10W R7D2 VRS-TV2AB820J AA 82 ohms,1/10W R395 VRD-ST2CD473J AA 47 kohms,1/6W...
  • Page 55 QCNCM004KSJZZ J AC Plug,10Pin CABINET PARTS CNP703 QCNCM010LAWZZ J AC Plug,11Pin CNP705 QCNCM932BAFZZ J AA Plug,2Pin CPNLC1045SJ01 AN Front Panel Ass’y [XL-40H] CNP706 QCNCM932CAFZZ J AA Plug,3Pin CPNLC1045SJ03 AN Front Panel Ass’y [XL-50H] CNP803 QCNCM932FAFZZ J AC Plug,6Pin 201- 1 ————...
  • Page 56 XL-40H/50H PRICE PRICE PARTS CODE DESCRIPTION PARTS CODE DESCRIPTION RANK RANK JKNBK0025SJSA AC Knob,JOG Dial [XL-40H] TLABZ0030SJZZ AC Label,Ecology JKNBK0025SJSB AC Knob,JOG Dial [XL-50H] RRMCG0013SJSB J AS Remote Control GCABC1039SJSA AH Top Cabinet GFTAB1021AWSB J Battery Lid,Remote Control MLEVP0001SJSA AL Lever,CD Eject Button...
  • Page 57 XL-40H/50H XL-40H/50H 306-2 306-1 306-3 703x2 NM802 NM801 305x2 NSW801 PWB-C Figure 6 CD MECHANISM EXPLODED VIEW – 6 –...
  • Page 58 XL-40H/50H XL-40H/50H 216-2 216-1 BELT CONNECTION Motor(M901) 613x2 FF/REW Clutch Main 610x2 Belt PWB-A7 PWB-A4 FF/REW Flywheel Belt PWB-A2 PWB-A8x3 603 601x2 M701 PWB-A6 601x3 608x2 LCD701 MECHANISM 609x3 PWB-A3 609x3 610x2 605x2 PWB-A5 PWB-A8 201-3 201-5 201-2 PWB-A1 201-11...
  • Page 59 XL-40H/50H CP-XL40H/50H SP601(L-CH) SP602(R-CH) 704x4 FULL-RANGE SPEAKER SP601(L-CH) SP602(R-CH) BLACK BLACK WITH WHITE LINE Figure 8 SPEAKER EXPLODED VIEW – 8 –...
  • Page 60 XL-40H/50H © COPYRIGHT 2000 BY SHARP COPORATION 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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