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There are currently no product reviews.
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perfect copy, im very satisfied, i was need the diagram over the powersupply and
the copy was very sharp
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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.
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IF PRINTED CIRQUIT BOARD WIRING VIEW WAS ONE TONE LIGHTER, THEN 5 STAR RANK HAS TO BE MY CHOISE.
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Very usefull, good quality drawings !
Muito útil encontrei todas as informações necessárias.
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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.
MDX-66XLP SECTION 1 SERVICE NOTE
1-1. TO PLACE THE SET INTO PLAYBACK MODE
The this set has no key control function and cannot be placed into the Playback mode alone. For key control, the this set is controlled through serial communication with a master unit (car audio player, TV tuner or source selector compatible with the Sony BUS system.) To service the this set, the set should be connected as given below:
MDX-66XLP
Master unit
BUS CONTROL OUT
BUS CONTROL IN
1-2. HOW TO CHECK THE SERVO BOARD WAVEFORMS
1. Remove the panel (rear) assy, case (upper) and panel (front) assy. Then, remove the main board from the mechanism deck. (See page 8 of �SECTION 3. DISASSEMBLY�.) 2. Remove the chassis (OP) block from the mechanism deck. (See page 9 of �SECTION 3. DISASSEMBLY�.) 3. Short each bridge points BP1 and BP2 on the main board by solder bridge.
� main board (conductor side) �
BP1 BP2
4. Connect the power board with the main board by the main flexible board. Connect the main board with the servo board by the servo flexible board. 5. Connect to a master unit. With the master unit OFF, press the preset buttons 4 t 5 t 1 (2 seconds or more each) in this turn to enter the TEST mode. 6. Open the doors and insert a disc in the chassis (OP) assy. Use the SOURCE button on the master unit to select to MD to playback. 7. Check the waveforms at each point on the servo board. Note: After this check is completed, remove solder between shorted bridge points BP1 and BP2 and open these points.
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