74DD-92-74DD-82-Service-Manual维修操作说明书手册

Servicewww.freesenicemanuals.info74DD-92/01G/02G/05G/07G74DD-82/01B/02B/05B/07BManualDigital compact casette recorder日色色已o r nTABLE OF CONTENTSTECHNICAL SPECIFICATIONS3CONNECTIONS AND CONTROLSSERVICE HINTSDISASSEMBLY5SERVICE MODES FACTORY MODESMICROPROCESSOR VO PINS AND THEIR FUNCTIONSBLOCK DIAGRAM0DESCRIPTION OF SIGNAL NAMES12VOLTAGE CHARTSWIRING DIAGRAMSCHEMATIC DIAGRAM AND PARTS LOCATIONS28MAIN PCB (PG03)/POWER SUPPLY PCB(PP03)/DC SUPPLY PCB(PS03)/POWER TRANSFORMER TERMINAL PCB(PP63)28POWER SUPPLY CIRCUIT(PP03)/POWER TRANSFORMER TERMINAL CIRCUIT(PP63)/POWER CIRCUIT(PG03-1/6)DC SUPPLY CIRCUIT (PS03)32L-COM CIRCUIT (PG03-2/6)MECHA CIRCUIT (PG03-3/6)ANALOG IN,DIGITAL IN/OUT CIRCUIT (PG03-4/6)/REC/BALANCE VOLUME CIRCUIT (PV03)REC/BALANCE VOLUME PCB(PV03)43DOLBY,MUTE,ANALOG OUT CIRCUIT(PG03-5/6)HEADPHONE,QMS CIRCUIT(PG03-6/6)/HEADPHONE CIRCUIT(PH03-1/2)/(PH03-2/2)HEADPHONE PCB(PHO3)DIGITAL CIRCUIT (PZ03-1/2)5DIGITAL CIRCUIT(PZ03-2/2)DIGITAL PCB A/B SIDE (PZ03)READ/WRITE PCB A SIDE (PW03)READ AMP CIRCUIT (PW03-1/2)WRITE AMP CIRCUIT (PW03-2/2)84READ/WRITE PCB B SIDE (PW03)A/D CONVERTER CIRCUIT(PA03-1/2)AD/DA PCB (PA03)70AD/DA PCB (PA03)D/A CONVERTER CIRCUIT (PA03-2/2)72TRAY WIRE CONNECTIVE,SERVO CIRCUIT (PM03)TRAY WIRE CONNECTIVE,SERVO PCB (PM03)FRONT PCB(PD03)FRONT CIRCUIT (PD03)8HEAD,DECK MECHANISM AND THEIR INTERFACESELECTRICAL MEASUREMENTS AND ADJUSTMENT胎SET EXPLODED VIEW AND PARTS LIST91DECK EXPLODED VIEW AND PARTS LISTELECTRICAL PARTS LIST97First issue:1992model DD-92/DD-82482272550979PCS67454