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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.
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9. ADJUSTM ENT
The SA-9500 ll amplifier employs the same type of power amplifier assemblyin both left and right channels. Any adjustment will thus have to be identica.lin both channels,and is limited to adjustments of the idler current. 1. Disconnectthe jumper plugs,and terminate the POWER IN terminals with a 5.1k(2 resistoru. 2. Connect 8Sl resistors to the SPEAKERS A terminals, and set the SPEAKERS switch to A. 3. Turn VR, in fully a counter-clockwise. 4. Tum the POWER switch ON, and then readjust VR, so that the voltage between terminals N o . 3 ( + ) a n d N o . 9 ( ) r e a d s3 0 m V . 5. Now check that the voltage belween terminals N o . 6 ( + ) a n d N o . 1 2 ( ) r e a d s3 0 m V t 1 0 m V (in order to check the current distribution, sincethe final stages in parallel). are 6. Leave the amplifier ON for about 30 minutes, then repeat steps4 and 5. 7. Finally, apply an actual signal, and check for no crossover distortion.
5.1kQ resistors
Jumper lugs p
DC Voltmeter
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a
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