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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.
D
C G
A
I
H
GND B E
F
A B Power ON 9.65 VAC 10.52V
Plug out 0 0
C 5.76V
0
D 10.45V
0
E 0.78V
0
F 0.12V
4.13V
G Pulse
0
H 5.07V
4.30V
I -23.9V
0
Voltage level is measured at the following condition. 1. Plug the power cord in AC outlet. 2. Mode switch position : REG, display 0.00 3. Put in the memory protection batteries. 4. Plug out : Plug out the power cord , the memory protection batteries in.
6-2. Reset circuit
VDD
S-80728AN
When the voltage level at the pin No.17 of CPU is not stable, CPU does not work properly. To make a stable voltage, the reset IC(S-80728AN) is used for this circuit. In case the voltage level of VDD becomes down output terminof reset IC is out the stable voltage.
GND
RESET
Pin No.17
�5�
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