Sharp QT-CD110H Service Manual

QT-CD111H/110H– 1 –Illustration: QT-CD111HCONTENTSPageSAFETY PRECAUTION FOR SERVICE MANUAL ...

QT-CD111H/110H– 10 –Figure 10 BLOCK DIAGRAM (1/2)6251374656395538543353321184221252038343536~+5VFOCUS COILTRACKING COILPICKUP UNIT31019 23 25121711181

QT-CD111H/110H– 11 –Figure 11 BLOCK DIAGRAM (2/2)262334455511177888992662345671012131415151111171819121022232421205189612FM ROD ANTENNAF1B.P.FL1FM RFL

QT-CD111H/110H– 12 –ABCDEFGH1234 56• The numbers 1 to 12 are waveform numbers shown in page 18.Figure 12 SCHEMATIC DIAGRAM (1/4)LCD70112345678FW7

QT-CD111H/110H– 13 –MUTEL8020.68µHCNS803CNP803BI803SW702PICKUP INM702SLEDMOTORM701SPINDLEMOTORCNS801BI8011CNS802BI802R8335.6KR835470C8302P(C

QT-CD111H/110H– 14 –ABCDEFGH1234 56Figure 14 SCHEMATIC DIAGRAM (3/4)• NOTES ON SCHEMATIC DIAGRAM can be found on page 9.<R4571KR4581KCNP101CNS101

QT-CD111H/110H– 15 –11.83V0V8V<3V><0.7V><0.1V>1155HEADPHONES PWB-A4SW102-GC3540.0056(ML)CNP201CNS201SW203-ASW203-B1N4148D3091N4148

QT-CD111H/110H– 16 –Figure 16 WIRING OF P.W.BOARD (1/2)ABCDEFGH1234 56• The numbers 1 to 12 are waveform numbers shown in page 18.123456789101112B

QT-CD111H/110H– 17 –Figure 17 WIRING OF P.W.BOARD (2/2)78 9101112F3895AFF651T1.25A L 250VC653C651C654C652D652D653D654D651CNS602SPEKERSSP502 SP501L-CH

QT-CD111H/110H– 18 –WAVEFORMS OF CD CIRCUIT1135ms0.50 VIC801 20 F.E15ms5.0 VIC801 54 DRFSTOP PLAYFOCUS SERCH20.5ms1.00 V HF0.5ms5.0 V HFL0.5ms5

QT-CD111H/110H– 19 –TROUBLESHOOTING (CD SECTION)When the CD does not functionWhen the CD section does not operate When the objective lens of the optic

QT-CD111H/110H– 2 –SAFETY PRECATION FORSERVICE MANUALPrecaution to be taken when replacing and servicing theLaser Pickup.The ael (ACCESSIBLE EMMISSION

QT-CD111H/110H– 20 –Check the laser diode driver.• Playback can only be performed when a discis loaded.Does the DRF signal change from "L"

QT-CD111H/110H– 21 –The turntable fails to rotate or rotates at high speed.YesCheck the periphery of IC801 pins 23 to 27, pin 39 and pin 40,IC802 pin

QT-CD111H/110H– 22 –1* P03 MTCONT2 Input/Output Used to input or output 4 bits at a time. When the output latch is set to "1", the unit will

QT-CD111H/110H– 29 –PACKING METHOD (111H FOR UK ONLY)• Setting position of switches and knobsTape Mechanism Control STOP STATETUNING LOWPOWER/FUNCTION

QT-CD111H/110H– 3 –FOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT, PLEASE REFERTO THE OPERATION MANUAL.SPECIFICATIONS GeneralPower source

QT-CD111H/110H– 4 –NAMES OF PARTS1. Cassette Compartment2. CD Compartment3. Tuning Control4. (TAPE) Record Button: 5. (TAPE) Play Button: 6. (TAPE) Re

QT-CD111H/110H– 5 –1 Rear Cabinet 1. Screw ... (A1) x10 5-12. Socket ... (A2) x1 5-22 Top Cabinet 1. Knob ...

QT-CD111H/110H– 6 –CD MECHANISM SECTIONPerform steps 1, 2, 4 and 6 of the disassembly method toremove the CD mechanism.How to remove the pickup (See F

QT-CD111H/110H– 7 –MECHANISM SECTION• Driving Force CheckPLAY: TW-2412 Over 120 gTorque MeterSpecified Value• Torque CheckTorque MeterSpecified ValueP

QT-CD111H/110H– 8 –CD SECTIONSince this CD system incorporates the following automaticadjustment function, when the pickup is replaced, it is necessar

QT-CD111H/110H– 9 –NOTES ON SCHEMATIC DIAGRAM 1. Tuner( ): AM modeMarking except for ( ): FM mode2. CD( ): Play modeMarking except for ( ): Stop