Sony PFM-32C1, Руководство по обслуживанию

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3-1
PFM-32C1/32C1E
Section 3
Troubleshooting
3-1. Judging Method When Image Does
Not Appear
1. Flow chart
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.
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.
Picture does not appear
Check the indication on the indicator
in the lower right of the front panel. (STAND BY)
2 times
3 times
4 times
5 times
6 times
When error code is detected from panel.
When temperature increases.
When 5 V digital system power voltage decreases (2.5 V or less)
or becomes excess voltage (6 V or more)
When 3.3 V digital system power voltage decreases (1.6 V or less)
or becomes excess voltage (4 V or more)
When 6 V analog system power voltage decreases (3 V or less)
or becomes excess voltage (7.2 V or more)
STBY LED flashes
When the STBY LED does not flash, the power supply circuit is defective.
1 2 1 2 3
0.3 0.3
0.3 0.3
6
3