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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.
FLOW CHART NO.14 The disc tray cannot be opened and closed. (It can be done using the remote control unit.) Does the voltage of Pin(4) on IC2001 become 75mV when pressing "OPEN/CLOSE" button on the unit? Yes Refer to "FLOW CHART NO.15" <The disc tray cannot be opened and closed.> FLOW CHART NO.15 The disc tray cannot be opened and closed. Replace the DVD Main CBA. No improvement can be found. Yes Replace the DVD Mecha. FLOW CHART NO.16 [No Disc] indicated. (When the focus error occurs.) Replace the DVD Main CBA. No improvement can be found. Yes Replace the DVD Mecha. FLOW CHART NO.17 [No Disc] indicated. (When the focus servo is not functioning.) Replace the DVD Main CBA. No improvement can be found. Yes Replace the DVD Mecha. FLOW CHART NO.18 [No Disc] indicated. (When the laser beam does not light up.) Replace the DVD Main CBA. No improvement can be found. Yes Replace the DVD Mecha. No Original DVD Main CBA is poor. No Original DVD Main CBA is poor. No Original DVD Main CBA is poor. No Original DVD Main CBA is poor. No Replace the "OPEN/CLOSE" button (SW2005).
3-4
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