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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.
AV-14F703
TROUBLESHOOTING GUIDE
NO VERTICAL
Is the waveform at pin 6 of CP401 normal ?
Yes
Check DY.
No
Is the waveform at pin 1 of IC401 normal ?
Yes
Is the voltage at pin 2 of IC401 25V?
Yes
Check IC401 and check the peripheral circuit.
No
No
Check the 25V line.
Is the waveform at pin 36 of IC601 normal ?
Yes
Check the circuit from pin 36 of IC601 to pin 1 of IC401.
No
Check the associated circuit of IC601.
18
No. 52002
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