Sharp QT-80W User Manual

QT-80WCONTENTSPageSPECIFICATIONS ...

QT-80W– 10 –• NOTES ON SCHEMATIC DIAGRAM can be found on page 14.ABCDEFGH1234 56Figure 10 SCHEMATIC DIAGRAM (1/2)FMMWSW1SW2FMMWSW1SW2FMMWSW1SW21122123

QT-80W– 11 –Figure 11 SCHEMATIC DIAGRAM (2/2)78 9101112IC201: BA3313LOUT 1NF 1IN 1GND150KIN 2NF 2ALC150KALCN.C.GND(SUB)VCCFILTEROUT 2135791124681012IC

QT-80W– 12 –ABCDEFGH1234 56Figure 12 WIRING OF P.W.BOARD (1/2)T105T104T103C118CT101C114CT102C113R124C112C111R110C145C137C136C119C120C121C141R112R111S1

QT-80W– 13 –Figure 13 WIRING OF P.W.BOARD (2/2)78 9101112R234R240C22712CON203VR301-AVR301VOLUMEVR301-BR408R407S302X-BASSOFFONABAC POWERSUPPLY CORDAC 1

QT-80W– 14 –VOLTAGENOTES ON SCHEMATIC DIAGRAMTYPES OF TRANSISTOR• Resistor:To differentiate the units of resistors, such symbol as K andM are used: th

QT-80WPARTS GUIDENOTE:Parts marked with “ ” are important for maintaining the safety of the set.Be sure to replace parts with specified ones for maint

PRICERANKDESCRIPTIONNO.PARTS CODENO. PARTS CODEPRICERANKDESCRIPTIONQT-80W– 1 –INTEGRATED CIRCUITSIC101 VHILA1186N/-1 J AE FM Front End,LA1186NIC102 VH

NO.PRICERANKDESCRIPTIONPARTS CODENO. PARTS CODEPRICERANKDESCRIPTIONQT-80W– 2 –R106,107 VRD-ST2CD104J J AA 100 kohm,1/6WR108,109 VRD-ST2CD223J J AA 22

PRICERANKDESCRIPTIONNO.PARTS CODEQT-80W– 3 –601 92L60026450800 J Screw,ø2.6×8mm602 92L60030500610 J Screw,ø3×6mm603 92L60220500410 J Screw,ø2×4mm604 9

QT-80WABCDEFGH123456Figure 4 CABINET EXPLODED VIEW– 4 –Note: Only the unit and consumale parts are supplied as parts supply for the Tape mechanism.227

QT-80W– 2 –FOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT, PLEASE REFERTO THE OPERATION MANUAL.SPECIFICATIONSSpecifications for this model a

QT-80WNo part of this publication may be reproduced,stored in a retrieval system, or transmitted inany form or by any means, electronic, mechanical,ph

QT-80W– 3 –NAMES OF PARTSHOW TO SET THE POINT "0" ON TUNER DIAL MEMORYFigure 31. Remove the front cabinet and main PWB. (Refer to page 4,of

QT-80W– 4 –1 Rear Cabinet 1. Battery Lid ... (A1) x1 4-12. Screw ... (A2) x63. Screw ... (A3) x42 Front Cabin

QT-80W– 5 –(J1)x4ø3x10mmTape MechanismStop/Eject ButtonPushOpenCassetteHolderFigure 5-2Figure 5-1(K1)x3ø2.6x8mmFront CabinetX-BASSPWBTAPE MECHANISM SE

QT-80W– 6 –How to remove the belts (See Fig. 6-1.)1. Remove the main belt (C1) x 1 pc., from the motor pulley.2. Remove the FF/REW belt (C2) x 1 pc.,

QT-80W– 7 –ADJUSTMENTFigure 7TUNER SECTIONfL: Low-range frequencyfH: High-range frequency1 FM IF: (1) FM IF sweep Inject the IF Signal are taken Adjus

QT-80W– 8 –1 MW IF: 455 kHz (1) AM IF sweep Let the MW ANT Take out the signal Adjust T107 get MAX. (1) Band SW in MW generator with coil close to

QT-80W– 9 –MECHANISM SECTION1 Head Playback test tape Connect VTVM and oscilloscope to Head fixing screw Adjust to get MAX.adjustment MTT-113 6.3 kHz