- RECOMMENDED SPARE PARTS LIST
- REEL TABLE BLOCK
- MECHA ASSEMBLY BLOCK
- PRE AMP P.C BOARD (CL - 5001A) BLOCK
- POWER SUPPLY (A) P.C BOARD (CL - 5003/5004) BLOCK
- SYSTEM CONTROL P.C BOARD (CL - 5007A) BLOCK
- BAR METER P.C BOARD (CL - 5002) BLOCK
- ASSEMBLY BLOCK
- FINAL ASSEMBLY BLOCK
- Resistor and Capacitor witch is not Listed in this Parts List, Please Refer to Common List for Service Parts
- SECTION 1 SERVICE MANUAL
- SECTION 2 PARTS LIST
- SECTION 3 SCHEMATIC DIAGRAM
- TECHNICAL DATA
- DISMANTLING OF UNIT
- PRINCIPAL PARTS LOCATION
- VOLTAGE AND CYCLE CONVERSION
- VOLTAGE CONVERSION
- CYCLE CONVERSION
- MECHANICAL ADJUSTMENT
- FLYWHEEL LOOSE PLAY ADJUSTMENT
- PLUNGER POSITIONING
- PINCH ROLLER PRESSURE MEASUREMENT
- VARIOUS TORQUE MEASUREMENT
- TAPE SPEED ADJUSTMENT
- HEAD ADJUSTMENT
- TAPE GUIDE HEIGHT ADJUSTMENT
- RECORDING/PLAYBACK HEAD HEIGHT ADJUSTMENT
- RECORDING/PLAYBACK HEAD AZIMUTH ALIGNMENT ADJUSTMENT
- ELECTRICAL ADJUSTMENT
- DC RESISTANCE OF VARIOUS COILS
- CLASSIFICATION OF VARIOUS P.C BOARDS
- P.C BOARD TITLES AND IDENTIFICATION NUMBERS
- COMPOSITION OF VARIOUS P.C BOARDS
- For Basic Adjustments, Measuring Methods, and Operating Principles, Refer to General Technical Manual
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This is exactly the service manual I needed.
Complete with all schematics, partslists, PCB layouts and alignment instructions.
This manual covers both the T-4970 en T-488F Onkyo tuner.
IF PRINTED CIRQUIT BOARD WIRING VIEW WAS ONE TONE LIGHTER, THEN 5 STAR RANK HAS TO BE MY CHOISE.
Very usefull, good quality drawings !
Muito útil encontrei todas as informações necessárias.
Wanting to repair a neighbours tape recorder I needed the necessary information, it makes it easier. Although the service manual is described as "Language : English" To my dismay I found that it is entirely written in German, a language I do not understand. At least I now have the schematics which will help of sorts. I may not use this service again due to the laguage difficulty after all when it states English you do not expect it to be entirely in another language.
GOOD SERVICE MANUAL.I ALWAYS BUY THERE IF I FIND WHAT I AM LOKING