Sharp XL-55H Service Manual

– 1 –XL-55H/65H CONTENTSPageSAFETY PRECAUTION FOR SERVICE MANUAL ...

XL-55H/65H– 10 –2. CD Test Mode (TEST 1)In the CD test mode the operation of each step is enabled even when the LID-SW is off. However, if focus canno

– 11 –XL-55H/65HThe time display indicates always "0:00".When the following buttons are pressed in this state, the operation is executed as

XL-55H/65H– 12 –3. Tuner Test Mode (TEST 2)1. Outline of tuner (radio) test mode The tuner test mode is intended to store the adjustment and measur

– 13 –XL-55H/65H3. Preset frequencies for various destinations (random preset memory)BAND16-2526 FM106.00 MHz27 FM 90.00 MHz28 FM FM 98.00 MHz29 MON

XL-55H/65H– 14 –7. Key input diagnosis Test Mode (TEST 6)When the test mode is set, the following indication appears.ERROR LISTPU-IN SW detection erro

– 15 –XL-55H/65HSW700 VOLUME ON—OFFSW701 ON/STAND-BY ON—OFFSW702 FUNCTION ON—OFFSW703 STOP/CLEAR,TUNING DOWN ON—OFFSW704 PLAY/CD STOP,TUNING UP ON—OFF

XL-55H/65H– 16 –REC MUTEQ105Q106REC 150K150KMUTE ALC + - - + 3 1 5 11128 102 IC102 BA3311L 6 7 9 NFL-INR-INNFL-OUT ALC R-OUT Q151Q152L151Q153Q171Q172

– 17 –XL-55H/65H105106REC CD+BP MUTEP-STB P-CONT123456CD LCNP605 TO CD SERVO PWB U_CON 5VD-GND A_12V TAPE SW A_12V PROTECTREC L/R CHTAPE L/R CH

XL-55H/65H– 18 –Figure 18 BLOCK DIAGRAM (3/4)CNP702CNS605CNP605CLID SWGVSWPICK_INBLKCKMDATAMCLKMLDMRSTCD STBSTATTO MAIN SECTIONTO MAIN SECTIONTO MAIN

– 19 –XL-55H/65HFigure 19 BLOCK DIAGRAM (4/4)CNP702CNS605CNP605CLID SWGVSWPICK_INBLKCKMDATAMCLKMLDMRSTCD STBSTATNM801SLEDMOTOR NM802SPINDLEMOTORMMTRAC

XL-55H/65H– 2 –Precaution to be taken when replacing and servicing the Laser Pickup.The AEL (Accessible Emission Level) of Laser Power Output for this

XL-55H/65H– 20 –ABCDEFGH123456• NOTES ON SCHEMATIC DIAGRAM can be found on page 15.24 23 22 21 1 2 3 22 21 20 1 2 CHASSISGNDAMANTENNAFM75 OHMSFM ANT

– 21 –XL-55H/65H78 9 10 11 129 8 7 6 5 4 3 2 1 CLDOSTEREODICEP MUTEP-STB CD+BCD+BFM ST SDDICEDOCLP31 12 - FCNS704TO DISPLAY PWBP26 1 - CTO MAIN PW

XL-55H/65H– 22 –ABCDEFGH123456• NOTES ON SCHEMATIC DIAGRAM can be found on page 15.24 23 22 21 1 2 3 22 21 20 1 2 3CHASSISGNDAMANTENNAFM75 OHMSFM AN

– 23 –XL-55H/65H78 9 10 11 129 8 7 1211106 5 4 3 2 1 CLDOSTEREODICEP MUTEP-STB CD+BCD+BFM ST SDRDS CLKRDS DATAVMSVMSDICEDOCLP31 12 - FCNS704TO DISP

XL-55H/65H– 24 –ABCDEFGH123456• NOTES ON SCHEMATIC DIAGRAM can be found on page 15.(ML)9 8 7 6 5 4 3 2 1 1K7 6 5 4 3 2 1 R-CHL-CHTAPE MECHANISM PWB-D

– 25 –XL-55H/65H78 9 10 11 1210 9 8 5 2 3 4 1 11 6 7 12 10 119 8 7 6 5 4 3 2 1 BIASSURROUNDTAPE_SW D_GND U_CON5V SOL MOT REC RUN_PLS A-12V A-12V M 12

XL-55H/65H– 26 –ABCDEFGH1234564.8V4.8V4.8V4.8V9.6V5V4.8V4.8V4.8V4.8V4.8V4.8V4.8V4.8V4.8V4.8V4.8V4.8V4.8V4.8V4.8V0V0V0V0V13V 20V 12.3V 11.7V 20V20V 11.

– 27 –XL-55H/65H78 9 10 11 129.6V5V4.8V0V0V0V13 12 11 10 9 8 7 6 5 4 3 2 1 3 2 1 28 29 30 5 5 1 1 CLVDD VREFVSSCEDIAIN PWB-A1(3/3)SPEAKER BOX SPEAKE

XL-55H/65H– 28 –ABCDEFGH1234565.2V5.2V6.3V+B+B+B+B+B+B+B+B0V5.1V2.7V2.4V4.3V1.7V2.7V3.5V2.7V4V0V3.8V0V0V0V2.7V0V2.7V2.7V2.7V2.7V2.7V2.7V2.7V2.7V2.7V2.

– 29 –XL-55H/65H78 9 10 11 12+B+B+B+B+B+B2.6V2.6V2.6V5.1V0V2.5V4.5V4V4.7V0V0V0V0V5.1V2.5V0.2V0.3V4.8V2.6V2.6V2.7V2.7V2.7V2.7V2.7V2.7V2.7V2.7V2.7V2.4V2

– 3 –XL-55H/65HFOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT, PLEASE REFERTO THE OPERATION MANUAL.SPECIFICATIONS General Amplifier Tuner

XL-55H/65H– 30 –ABCDEFGH1234560V5V5V0V0V5V5V0V0V0V2.5V2.5V2.5V2.5V2.5V2.5V2.5V2.5V2.5V2.5V0.6V5V5V1.7V3.3V2.6V2.6V2.4V1.9V5V5V5V5V0V0V0V0V2.5V2.5V2.5V

– 31 –XL-55H/65H78 9 10 11 125V5V5V5V0V0V5V5V0V0V4.6V5V0V4.3V4.3V4.3V4.3V4V5V5V5V2.5V2.5V2.5V2.5V2.5V2.5V2.5V2.5V2.5V2.5V2.5V2.5V2.5V2.5V2.5V2.5V2.5V2

XL-55H/65H– 32 –ABCDEFGH123456XL-6XL-5RR621R617R623R627C627R625J923J920C412R408R406R407C411R405C340R364R357R362R356R350C369C366C365R361C363C360C361R35

– 33 –XL-55H/65H78 9 10 11 12XL-65H :XL-55H :R152R151C121C122C102R140R115C101C105C103C104C106R103R104R105R109R110R113R132R108R114R133R134R125R126R121R

XL-55H/65H– 34 –ABCDEFGH123456R832R833C818C821IC802R803R811R813C830C831C834C829C838C842R805C843C841C857C845R886C858C848R885R809C803IC804R808C817R812R8

– 35 –XL-55H/65H78 9 10 11 12Figure 35 WIRING SIDE OF P.W.BOARD (4/5)R792R7D4R7D2R7E1R7D6R7D1R7D9R7D8R7D5R7D3R782R746R743R775R778R779R780R734R733R737C

XL-55H/65H– 36 –ABCDEFGH123456CNW654T651T681F652F651CNW653SO651D658C658C659C656C657D659D656D685RLY681D653C651C654D654D652D651D657CNW651CNS651CNP652CNP

– 37 –XL-55H/65HWAVEFORMS OF CD CIRCUITNO DISC FOCUS SEARCH FOORFDETARFFEIC804 27pinFO+IC804 26pinFO-IC801 28pinSTOP PLAY(FE)CUE(TE)REVIEW(TE)TCD-7

XL-55H/65H– 38 –TROUBLESHOOTINGWhen the CD does not functionWhen the CD section does not operate when the objective lens of the optical pickup is dirt

– 39 –XL-55H65HMake 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

XL-55H/65H– 4 –NAMES OF PARTS1. CD Compartment2. CD Eject Button3. Volume Control4. Cassette Compartment5. Headphone Socket6. On/Stand-by Button7. Fun

XL-55H/65H– 40 –• Focus failure.Does the optical pickup move up and down when the disc isremoved?Is the following waveform output at the pin 32 (FE) o

– 41 –XL-55H65H• Focus servo sawtooth wave failure.Is +6.2V applied to the pins 21 and 22 (VCC) of IC804 ? Is sawtooh wave output to the pin 28 (FOO)

XL-55H/65H– 42 –• HF error.YesYesIs output (tracking error signal) obtained at the pins 33 (TE)and 37 (TRCRS) of IC801 the CD TEST MODE "STEP 4&q

– 43 –XL-55H65H• Sled motor operation failure.YesIs following sled feed signal input the pin 3 (VIN1) of IC804when FF/REW key is pressed after the CD

XL-55H/65H– 44 –FUNCTION TABLE OF ICIC401 VHiLC75342M-1: Function/Volume Equaliser (LC75342M)1 DI Serial data and clock input pin for control.2 CE Ch

– 45 –XL-55H/65HIC701 RH-iX0060SJZZ: System Control Microcomputer (IX0060SJ) (1/2)1-4 COM3-COM0 Output LCD common output terminal.5-7 VLC3-VLC1 — LCD

XL-55H/65H– 46 –IC701 RH-iX0060SJZZ: System Control Microcomputer (IX0060SJ) (2/2)1234567891011121314151617181920212223242526272829303132333435363738

– 47 –XL-55H/65HIC801 VHiMN6627482W: Servo/Signal Control (MN6627482W) (1/2)1* BCLK Output SRDATA bit clock output.2* LRCK Output L/R identification s

XL-55H/65H– 48 –IC801 VHiMN6627482W: Servo/Signal Control (MN6627482W) (2/2)Terminal NamePin No. Input/OutputFunction47 DSLF Input/Output DSL loop fil

– 49 –XL-55H/65HIC801 VHiMN6627482W: Servo/Signal Control (MN6627482W)STATX1X2MSELCSELPMCK(PLAY)GIO2(FCLK)SMCKBYTCK(TRVSTP)VCOFVCOF2MDATAMCLKMLDPSELRS

– 5 –XL-55H/65H1. CD Compartment2. CD Eject Button3. Volume Control4. Cassette Compartment5. Headphone Socket6. On/Stand-by Button7. Function Selector

XL-55H/65H– 50 –IC802 VHiAN22000A-1: Head Amp. (AN22000A)1 PD APC amp input.2 LD APC amp output.3 VCC Power supply.4 RFN RF amp inverting input.5 RFOU

– 51 –XL-55H/65HLCD701: RV-LX0007SJZZ LCD DisplayFigure 51 LCD SEGMENTPinNo123456789101112131415161718192021com1com1z1h1g1a1RECh2g2a2SLEEPh3g3a3RANDOM

XL-55H/65H– 52 ––MEMO–

XL-55H/65HPARTS GUIDENOTE:Parts marked with “ ” are important for maintaining the safety of the set.Be sure to replace parts with specified ones for m

PRICERANKDESCRIPTIONNO.PART CODENO. PARTS CODEPRICERANKDESCRIPTIONXL-55H/65HINTEGRATED CIRCUITSIC101 VHIBA3126N/-1 J AF Head Selector,BA3126NIC102 VHI

NO.PRICERANKDESCRIPTIONPARTS CODENO. PART CODEPRICERANKDESCRIPTIONXL-55H/65HC337 VCKYPA1EF223Z J AA 0.022 µF,25VC340 VCKYCY1HB102K J AA 0.001 µF,50VC3

PRICERANKDESCRIPTIONNO.PART CODENO. PARTS CODEPRICERANKDESCRIPTIONXL-55H/65HC849,850 RC-GZA106AF1H J AB 10 µF,50V,ElectrolyticC851 VCCCCY1HH121J J AA

NO.PRICERANKDESCRIPTIONPARTS CODENO. PART CODEPRICERANKDESCRIPTIONXL-55H/65HR742,743 VRS-CY1JB102J J AA 1 kohm,1/16WR744,745 VRD-ST2CD102J J AA 1 kohm

PRICERANKDESCRIPTIONNO.PART CODENO. PARTS CODEPRICERANKDESCRIPTIONXL-55H/65HCD MECHANISM PARTS301 MLEVP1054AFZZ J AC Rail,Guide302 NGERH0586AFZZ J AC

XL-55H/65HABCDEFGH123456Figure 6 CD MECHANISM EXPLODED VIEW– 6 –307-1703304703303302704301NM802702x2306x2SW800NM801306PWB-C307-3307-2307701305

XL-55H/65H– 6 –1 Top Cabinet 1. Screw ... (A1) x5 6-12. Socket ... (A2) x2 6-1,32 Side Panel(Left/Right)1. Screw ...

XL-55H/65HFigure 7 CABINET EXPLODED VIEWABCDEFGH123456– 7 –Note: Only the unit and consumale parts are supplied as parts supply for the Tape mechanis

XL-55H/65H– 8 –PACKING METHOD (FOR U.K. ONLY)Setting position of switches and knobsTape Mechanism STOPCassette Holder CLOSECD Lid CLOSE1. AC Power Sup

XL-55H/65H–MEMO–

XL-55H/65H–MEMO–

XL-55H/65HCOPYRIGHT 2003 BY SHARP CORPORATIONALL RIGHTS RESERVED.No part of this publication may be reproduced,stored in a retrieval system, o

– 7 –XL-55H/65HTAPE MECHANISM SECTIONPerform steps 1 to 6 and 8 of the disassembly method toremove the tape mechanism. (See page 6.)How to remove the

XL-55H/65H– 8 –How to remove the pickup (See Fig. 8-3)1. Remove the mechanism cover, paying attention to thepawls (A1) x 4 pcs.2. Remove the screws (A

– 9 –XL-55H/65HMECHANISM SECTION• Driving Force CheckTorque MeterSpecified ValuePlay: TW-2412 Over 80 g• Torque CheckTorque MeterPlay: TW-2111 30 to 6