Sharp XL-55 Manuale di Servizio

– 1 –XL-40H/50H CONTENTSPageSAFETY PRECAUTION FOR SERVICE MANUAL ...

XL-40H/50H– 10 –(Continued)LIGHT M: Classical Musical for general, ratherthan specialist appreciation. Exam-ples of music in this category are in-stru

– 11 –XL-40H/50H2. 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

XL-40H/50H– 12 –The time display indicates always "0:00".When the following buttons are pressed in this state, the operation is executed as

– 13 –XL-40H/50H3. Tuner Test Mode (TEST 2)1. Outline of tuner (radio) test mode The tuner test mode is intended to store the adjustment and measur

XL-40H/50H– 14 –4. ASPM TEST ModeWhen the ASPM button is pressed, the test mode is set. It starts up at FM 106.50 MHz. (ST mode)Data of 27 CH of 04 to

– 15 –XL-40H/50HB) Cautions concerning the ASPM test modea) Cancel: When the "ASPM" button is pressed again during operation after it was fi

XL-40H/50H– 16 –4. Electronic volume Test Mode (TEST 3)When the test mode is set, the following indication lights for one second.When this mode is set

– 17 –XL-40H/50HThis test mode is intended to check whether all the main unit buttons can be detected. Accordingly, in this test mode checkingas to wh

XL-40H/50H– 18 –NSW801 PICKUP IN ON—OFFSW700 JOG ON—OFFSW709 ON/STAND-BY ON—OFFSW710 CLOCK/TIMER/SLEEP ON—OFFSW711 TUNING UP ON—OFFSW712 PLAY/CD PAUSE

– 19 –XL-40H/50HWAVEFORMS OF CD CIRCUITNO DISC FOCUS SEARCH STOP PLAYFOO1 TMAX 1IC802 48pin FO+ 2SBOK2IC804 26pinIC802 12pinFO- 3 DMO 3IC804 25pi

XL-40H/50H– 2 –SPECIFICATIONSFOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT, PLEASE REFERTO THE OPERATION MANUAL.XL-40H/50HCP-XL40H/50HPreca

XL-40H/50H– 20 – Figure 20 BLOCK DIAGRAM (1/4)REC MUTEQ105Q106REC 150K150KMUTE ALC + - - + 3 1 5 11128 102 IC102 BA3311L 6 7 9 NFL-INR-INNFL-OUT ALC

– 21 –XL-40H/50H Figure 21 BLOCK DIAGRAM (2/4)0506REC STEREOSDCECD+BP MUTEP-STB DICLDOFM ST SD1 2 34567CD LCNP605 TO CD SERVO PWB MOT SOL U_CON 5VD

XL-40H/50H– 22 – Figure 22 BLOCK DIAGRAM (3/4)1 2 3 4 5 6 7 8 9 101112131415161718192021222324 252627282930313239949596979899100X7018MHzSEG6SEG5SEG4SE

– 23 –XL-40H/50H Figure 23 BLOCK DIAGRAM (4/4)1 2 3 4 5 6 7 8 9 101112131415161718192021222324 2526272829303132333435363738394041424344 45464748495051

XL-40H/50H– 24 –Figure 24 SCHEMATIC DIAGRAM (1/6)ABCDEFGH123456• NOTES ON SCHEMATIC DIAGRAM can be found on page 18.R3662.2KQ172KRC102 MC3721/50C3711/

– 25 –XL-40H/50HFigure 25 SCHEMATIC DIAGRAM (2/6)78 9 10 11 12R6343.3KC6064.7/25C6054.7/25L6010.3mHR6316.8 C6330.022Q609KRC107 MC693330PR43510KR43610K

XL-40H/50H– 26 –Figure 26 SCHEMATIC DIAGRAM (3/6)ABCDEFGH123456• NOTES ON SCHEMATIC DIAGRAM can be found on page 18.C77347/16R7992.2KR72347KR7B247KR7B

– 27 –XL-40H/50HFigure 27 SCHEMATIC DIAGRAM (4/6)78 9 10 11 12R7851KR78647KR78947KCFW704121CNS7031110987654321BI70210987654321LCD701LCD DISPLAY R78447

XL-40H/50H– 28 –ABCDEFGH123456• NOTES ON SCHEMATIC DIAGRAM can be found on page 18.Figure 28 SCHEMATIC DIAGRAM (5/6)R8201KL810L80310µHR80910KR8083.3KC

– 29 –XL-40H/50HFigure 29 SCHEMATIC DIAGRAM (6/6)78 9 10 11 12• The numbers 1 to 17 are waveform numbers shown in page 19.C8430.1R8632.2KIC804 L

– 3 –XL-40H/50HNAMES OF PARTSXL-40H/50H Front panel1. Timer Indicator2. Record Indicator3. Sleep Indicator4. (CD) Random Indicator5. (CD/TUNER) Memor

XL-40H/50H– 30 –Figure 30 WIRING SIDE OF P.W.BOARD (1/4)ABCDEFGH123456MAIN PWB-A1HEADPHONESPWB-A5C109R141C125C111R107C107IC102 CNP703C113R101IC101 CNP

– 31 –XL-40H/50HFigure 31 WIRING SIDE OF P.W.BOARD (2/4)78 9 10 11 1212D709D708D707D706D705D704D703D702D701SW710 SW723 BI702C773C771IC702 R787R798R799

XL-40H/50H– 32 –Figure 32 WIRING SIDE OF P.W.BOARD (3/4)ABCDEFGH123456• The numbers 1 to 17 are waveform numbers shown in page 19.F3895AF1187151

– 33 –XL-40H/50HFigure 33 WIRING SIDE OF P.W.BOARD (4/4)78 9 10 11 12R685R686C688Q683C685C686C660Q681D685ZD682 R683C689R684CNS652D684D683D682D681C684Z

XL-40H/50H– 34 –TROUBLESHOOTINGWhen the CD does not functionWhen the CD section does not operate when the objective lens of the optical pickup is dirt

– 35 –XL-40H/50HMake 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-40H/50H– 36 –• Laser failure.Is 0V applied to the pin 57 (SEL) of IC802 ?YesNoDoes the laser come on when pattern cut between pin 8 (SEL) ofIC801 a

– 37 –XL-40H/50H• Focus servo sawtooth wave failure.Is +6.2V applied to the pins 1 and 30 (VCC) of IC804 ? Is sawtooh wave output to the pin 48 (FOO)

XL-40H/50H– 38 –• HF error.YesYesIs output (tracking error signal) obtained at the pins 46 (TEI)and 47 (TEZI) of IC802 the CD TEST MODE "STEP 4&q

– 39 –XL-40H/50H• Sled motor operation failure.YesYesIs following sled feed signal output the pin 53 (FMO) of IC802when FF/REW key is pressed after th

XL-40H/50H– 4 –CP-XL40H/50HXL-40H/50H Speaker section1. Bass Reflex Duct2. Full-Range Speaker3. Speaker Wire Remote control1. Remote Control Transmi

XL-40H/50H– 40 –FUNCTION TABLE OF ICIC401 VHiLC75342M-1: Function/Volume Equalizer (LC75342M)1 DI Serial data and clock input pin for control.2 CE Ch

– 41 –XL-40H/50HFigure 41 BLOCK DIAGRAM OF ICIC401 VHiLC75342M-1: Function/Volume Equalizer (LC75342M)67891011 12 13 1415 16 17 18 19 202122232425265

XL-40H/50H– 42 –1-4 COM3-COM0 Output LCD common output terminal.5-7 VLC3-VLC1 — LCD power supply terminal.8 VDD — Microcomputer power supply +5V.9 OSC

– 43 –XL-40H/50HFunctionTerminal NameInput/Output54 SEG46 P63/A3 Output Electric JOG dial UP.55 SEG45 P64/A4 Output Electric JOG dial DOWN.56* SEG44 P

XL-40H/50H– 44 –IC801 VHiTA2109F/-1:Servo Pre Amp. (TA2109F)1 VCC — Power voltage terminal2 FNI Input Main beam amp input terminal3 FPI Input Main be

– 45 –XL-40H/50HIC801 VHiTA2109F/-1:Servo Pre Amp. (TA2109F)Figure 45 BLOCK DIAGRAM OF IC15kΩ15kΩ50kΩ10kΩ7.96kΩ10kΩ21kΩ 21kΩ12kΩ12kΩ20kΩ20kΩ23.5kΩ12k

XL-40H/50H– 46 –IC802 VHiTC9462F/-1: Servo/Signal Control (TC9462F) (1/3)1* TEST0 Input Test mode terminal. To be opened usually.2* /HSO Output Playba

– 47 –XL-40H/50H39 AVDD — Analog system power terminal.40 RFCT Input RFRP signal center level input terminal.41 RFZI Input RFRP zero cross input termi

XL-40H/50H– 48 –83 DVDD — D/A converting section power terminal.84 DVR — Reference voltage terminal.85 LO Output L channel data forward rotation outpu

– 49 –XL-40H/50HIC804 VHiLA6541D/-1: Focus/Tracking/Spin/Sled Driver (LA6541D)In this unit, the terminal with asterisk mark (*) is (open) terminal wh

– 5 –XL-40H/50HOPERATION MANUALPREPARATION FOR USE Connecting the AC power leadAC 230 V, 50HzTo an AC socketTo AC INPUTConnect the AC power lead to t

XL-40H/50H– 50 –LCD701: RV-LX0007SJZZ LCD DisplayFigure 50 LCD SEGMENTPinNo123456789101112131415161718192021com1com1z1h1g1a1RECh2g2a2SLEEPh3g3a3RANDOM

XL-40H/50HPARTS GUIDENOTE:Parts marked with “ ” are important for maintaining the safety of the set.Be sure to replace parts with specified ones for m

PRICERANKDESCRIPTIONNO.PARTS CODE NO. PARTS CODEPRICERANKDESCRIPTIONXL-40H/50H– 1 –INTEGRATED CIRCUITSIC101 VHIBA3126N/-1 J AF Head Selector,BA3126NIC

NO.PRICERANKDESCRIPTIONPARTS CODENO. PARTS CODEPRICERANKDESCRIPTIONXL-40H/50H– 2 –C350,351 VCKYTV1EF223Z J AA 0.022 µF,25VC352 RC-GZA106AF1C J AB 10 µ

PRICERANKDESCRIPTIONNO.PARTS CODE NO. PARTS CODEPRICERANKDESCRIPTIONXL-40H/50H– 3 –R7B3 VRS-TV2AB222J J AA 2.2 kohms,1/10WR7D1 VRS-TV2AB820J J AA 82 o

NO.PRICERANKDESCRIPTIONPARTS CODENO. PARTS CODEPRICERANKDESCRIPTIONXL-40H/50H– 4 –R810 VRS-TV2AB332J J AA 3.3 kohms,1/10WR811 VRS-TV2AB222J J AA 2.2 k

PRICERANKDESCRIPTIONNO.PARTS CODE NO. PARTS CODEPRICERANKDESCRIPTIONXL-40H/50H– 5 –209 JKNBK0025SJSA J AC Knob,JOG Dial [XL-40H]209 JKNBK0025SJSB J AC

XL-40H/50HABCDEFGH123456Figure 6 CD MECHANISM EXPLODED VIEW– 6 –306-1701304701302301702303NM802703x2305x2NSW801NM801305PWB-C306-2306-3306704307XL-40H

XL-40H/50HFigure 7 CABINET EXPLODED VIEWABCDEFGH123456– 7 –Note: Only the unit and consumale parts are supplied as parts supply for the Tape mechanis

XL-40H/50H– 8 –Figure 8 SPEAKER EXPLODED VIEWABCDEFGH123456705704x4703702707701706SP601(L-CH)SP602(R-CH)BLACK WITH WHITE LINEBLACKFULL-RANGESPEAKERSP

XL-40H/50H– 6 –1 Side Panel(Left/Right)1. Screw ... (A1) x8 6-12 Top Cabinet 1. Screw ... (B1) x1 6-1Switch PWB 2. Socke

XL-40H/50HCOPYRIGHT 2000 BY SHARP COPORATIONALL RIGHTS RESERVED.No part of this publication may be reproduced,stored in a retrieval system, or

– 7 –XL-40H/50HTAPE MECHANISM SECTIONPerform steps 1 to 7 and 9 of the disassembly method toremove the tape mechanism. (See page 6.)How to remove the

XL-40H/50H– 8 –Figure 8-4How to remove the pickup (See Fig. 8-4)1. Remove the mechanism cover, paying attention to thepawls (A1) x 4 pcs.2. Remove the

– 9 –XL-40H/50HMECHANISM SECTION• Driving Force CheckTorque MeterSpecified ValuePlay: TW-2412 Over 80 g• Torque CheckTorque MeterPlay: TW-2111 30 to 6