Sony MT-MZR70-165, MZ-R90/R91 service manual MAIN BOARD IC502 CXD2660GA

Contents Canadian Model US ModelAEP Model UK ModelNotes on chip component replacement Flexible Circuit Board RepairingTABLE OF CONTENTS NOTES ON LASER DIODE EMISSION CHECK SECTION SERVICING NOTENOTES ON HANDLING THE OPTICAL PICK-UPBLOCK LCX-2R OPTICAL PICK-UPFLEXIBLE BOARDSECTION 2 GENERAL Page Page SECTION DISASSEMBLY 3-4.MAIN BOARD 3-3.LCD MODULE3-5.MD MECHANISM DECK MT-MZR70-165 3-6.SERVICE ASSY, OPover write head section 3-8.MOTOR FLEXIBLE BOARD 3-7.HOLDER ASSY3-10.“MOTOR, DC M601”, “MOTOR, DC M603” 3-9.MOTOR, DC M6024-2-2.Operation in Setting the Test Mode SECTION 4 TEST MODE4-2-1.Setting Method of Test Mode 888xxxxxxxxxFREC1SHUF000M a n u a l 011 0 F FJ 011 C 6 8 S011 0 6 3 B 011 0 5 9 AE I B 000P * * R000S t a t 000A d r s 000B E m p 000# # # # # # 000P * * R 000B O v r 000B f u l 000R t r y0001 s t 0001 s t 0001 s t 0001 s t000N - 1 000N - 1 000N - 2 000N - 2 000N 000R # # # #• Description of Indication History Description of Error Indication Codes4-7.KEY CHECK MODE 021R e s N SECTION ELECTRICAL ADJUSTMENTS021R e s O K ? 021R e s765V c h P W M 762V c l P W M763V r h V c l 766V r h V c h000 A s s y 014S e t T m pC D R U N 341 C D O K043R e s C l r 043R e s u m eConnection Check MethodConnecting Location MZ-R70 DIAGRAMSSECTION MZ-R70 MZ-R70 6-3.BLOCK DIAGRAM - POWER SUPPLY SECTIONWaveforms Page Page MZ-R70 Refer to page 41 for IC Block DiagramsMZ-R70 MZ-R70 SN761056 IC501IC302 NJM2173MPC17A56FTA IC601IC603 MPC18A21MTBIC301 IC901 MPC18A31FTAAK4517-VQ-L 6-9.IC PIN DESCRIPTIONS MAIN BOARD IC502 CXD2660GA Page Page Page Page Page SECTION EXPLODED VIEWS Page MAIN SECTION ELECTRICAL PARTS LISTMAIN MAIN MAIN MAIN MZ-R70 Sony CorporationPersonal Audio Division Company Published by General Engineering DeptE Model Australian Model Chinese Model US Model Canadian Model AEP Model UK ModelVer Subject Taiwan model Addition