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Sony MT-MZR70-165, MZ-R90/R91 Test Mode, 888xxxxxxxxxFREC1SHUF, t t . t . t t . t t . t X t

Models: MT-MZR70-165 MZ-R90/R91

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Sony MT-MZR70-165, MZ-R90/R91 888xxxxxxxxxFREC1SHUF, t t . t . t t . t t . t X t, Operation in Setting the Test Mode

Contents

Canadian Model US ModelAEP Model UK Model Notes on chip component replacement Flexible Circuit Board Repairing TABLE OF CONTENTS NOTES ON LASER DIODE EMISSION CHECK SECTION SERVICING NOTENOTES ON HANDLING THE OPTICAL PICK-UPBLOCK LCX-2R OPTICAL PICK-UPFLEXIBLE BOARD SECTION 2 GENERAL Page Page SECTION DISASSEMBLY 3-4.MAIN BOARD 3-3.LCD MODULE 3-5.MD MECHANISM DECK MT-MZR70-165 3-6.SERVICE ASSY, OPover write head section 3-8.MOTOR FLEXIBLE BOARD 3-7.HOLDER ASSY 3-10.“MOTOR, DC M601”, “MOTOR, DC M603” 3-9.MOTOR, DC M602 4-2-2.Operation in Setting the Test Mode SECTION 4 TEST MODE4-2-1.Setting Method of Test Mode 888xxxxxxxxxFREC1SHUF 000M a n u a l 011 0 F FJ 011 C 6 8 S011 0 6 3 B 011 0 5 9 A E 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 y 0001 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 Codes 4-7.KEY CHECK MODE 021R e s N SECTION ELECTRICAL ADJUSTMENTS021R e s O K ? 021R e s 765V c h P W M 762V c l P W M763V r h V c l 766V r h V c h 000 A s s y 014S e t T m pC D R U N 341 C D O K 043R e s C l r 043R e s u m eConnection Check Method Connecting 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 Diagrams MZ-R70 MZ-R70 SN761056 IC501IC302 NJM2173 MPC17A56FTA IC601IC603 MPC18A21MTB IC301 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 LIST MAIN MAIN MAIN MAIN MZ-R70 Sony CorporationPersonal Audio Division Company Published by General Engineering Dept E Model Australian Model Chinese Model US Model Canadian Model AEP Model UK ModelVer Subject Taiwan model Addition