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Awesome manual. Complete diagrams of all board assemblies as well as how to get to each part of the t.v. down to the individual screws and their locations. Get it.
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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.
5 Troubleshooting
5-2-9 No Operating High Light Zone
Change the video signal to windows pattern.
WAVEFORMS
21 IC101, #14, 15
Does not the High Light Zone appear? Yes
21 22
No
Done.
Are the waveforms right on IC101 Pin 14 and 15 (19�:IC105 Pin 14 and 15). Yes
No Check connection Assy (CN102). 22 IC105, #14, 15
23
Is the waveform right on IC101 Pin 18 (19�: IC105 Pin 18). Yes Check and replace IC105 (19�: IC101) Yes Done.
No
Check and replace IC103 (19�: IC103).
23 IC105, #18
AQ17HS/AQ17IS/AQ17NS AQ19MS/AQ19IS/AQ19NS/AQ19FS
5-19
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