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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.
3-3-1. Keyboard Check
1) Turn power ON while pressing the 2 LEARN key in Fig. 1 and the 7 ASMBL key in Fig. 2 at the same time. 2) Press the !] EJECT key. 3) Again press the !] EJECT key, and �11�� appears on the left 7-segment display. Press keys in the order of 1, 2, 3�#\ and #;. When mistake the operation, press keys in the order of 1, 2, 3�#\ and #; again. 4) Press the !] EJECT key. �22�� appears on the left 7-segment display while �P1 on� appears on the right 7-segment display. (1) Place all indoor switches #' to $= in Fig. 1 in upper position, and press the !] EJECT key. If a fault is found, �Error� is displayed. In this case, press the ![ STDBY key, then the number of error switch is displayed. If many error exist, the number of next error switch is displayed whenever press the ![ STDBY key. For switch number, refer to the following.
1
PLAYER
TC RTC CTL
All LEDs must come on.
All LEDs must go off.
01, 02�35, 0H must appear on the right 7-segment display. No error display allowed.
�P1_ _ _ _0H� must appear on the right 7-segment display. No error display allowed.
3
PREROLL
7 5 3
4
SYNCHRO
ON/CF ON OFF
6
RECORDER
TC RTC CTL
LEARN
7 6 5 4 3
SYSTEM PRESET
2 1 0
ON OFF
7
6
5
4
3
2
1
0
7
8 . . . . . 13 14 15 16 . . . . . 21 22
(2) Place the above switches in lower position, and press the !] EJECT key twice. (3) Place #', #,, #. and $/ switches in Fig. 1 in center position, and press the !] EJECT key twice. 5) Press the !] EJECT key. �33�� appears on the left 7-segment display. (1) Set both search dials to SHUTTLE. Place both search dials in the center position. (2) Check that left search dial display varies as shown to the right when turning left search dial clockwise. Check that display as shown to the right is obtained at fully clockwise rotation. The same change must appear also in counterclockwise rotation. (3) Check that turning of right search dial provides the same display change as left search dial. 3-4 (E)
�P2_Error� must appear on the right 7-segment display. Press the 
