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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.
10-1a
MEASUREMENT REFERENCES TO LAYOUT ON PAGE 10-8
IC7643
IC 7643 Pin 17 18 9 10 3 2 4 26 27 33 36/40/43 41/42 39 19 34 25 24 12 20 21 Can be measure via Test point on component side monoboard TP 47 TP 48 TP 50 TP 51 TP 52 TP 53 TP 54 TP 55 TP 56 TP 57 TP 58 TP 59 TP 60 TP 61 TP 63 TP 64 TP 65 TP 66 TP 67 TP 68 Funtionality MDM Surround L in 6 CH Surround L in MDM Surround R in 6 CH Surround R in 4,7V 4,7V 4,7V 4,7V 4,7V Surround Right out Ground 9,4V 4,7V 8,7V Surround Left out 4,7V 4,7V 4,7V 4,7V 4,7V
IC7504
IC 7504 Pin Can be measure via Test point on component side monoboard TP 77 TP 78 TP 79 TP 80 TP 81 TP 82 Funtionality Rec - in Right -13,5V Rec - out Right 12V Rec - in Left Rec - out Left
5 via R3614 4 7 via R3616 8 3 via R3613 1 via R3615
PCS 105 725
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