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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.
Section 3 Troubleshooting
3-1. Judging Method When Image Does Not Appear
1. Flow chart
Picture does not appear
Check the indication on the indicator in the lower right of the front panel. (STAND BY)
STBY LED flashes
2 times
When error code is detected from panel.
3 times
When temperature increases.
4 times
When 5 V digital system power voltage decreases (2.5 V or less) or becomes excess voltage (6 V or more)
5 times
When 3.3 V digital system power voltage decreases (1.6 V or less) or becomes excess voltage (4 V or more)
6 times
When 6 V analog system power voltage decreases (3 V or less) or becomes excess voltage (7.2 V or more)
1
2
3
6
1
2
0.3 0.3 0.3 0.3 3
When the STBY LED does not flash, the power supply circuit is defective.
2. How to find PDP unit trouble 1) The power voltage for the PDP is supplied correctly. The power voltages are supplied from the switching regulator board CN6, CN23, CN33, CN42 and CN52 to the PDP panel. The four types of power voltage that are 3.3 V, 5 V, 55 V and 80 V are supplied.
2) The input signal is supplied to the PDP panel correctly. The LVDS signal is supplied to CN1 of the circuit board in the bottom of the PDP panel. (CN1 pin-1, pin-3, pin-5, pin-7, pin-9, pin-11, pin-13, pin-15, pin-17 and pin-19) If no images appears through the above conditions are satisfied, the PDP unit will be defective. 3-1
PFM-32C1/32C1E
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