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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.
Alignment and Adjustments
1-1-2 AM(MW),LW Adjustment
Circuit to be Adjusted Measuring Instrument & Step Arrangement S.S.G Radio dial Adjusting Frequency Setting Point Adjust for
1 OSC Connect AM signal generator to loop antenna,VTVM AND oscilloscope (Fig 1-3)
522KHz
522KHz
MW OSC
Aduust for (IR117)
1.0V±0.1V at the low.
2
1611KHz
1611KHz
MW OSC
Check for 7.0V±1.0V at the high.
(IR117)
AM (MW) RF � 1 594KHz 594KHz MW ANT Maximum out
INTER FREQ
� Fig 1-3
1 1 2
455KHz
522KHz 146KHz 290KHz
TL2 LW OSC LW OSC LW ANT
Maximum out Aduust for
2.0V±0.1V at the low.
OSC LW RF
Check for 7.0V±1.0V at the high.
1
150KHz
150KHz
Maximum out
1-2
Samsung Electronics
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