Trouble Shooting; Judging Method When Image Does Not Appear - Sony PFM-42B1 Service Manual

4-1. Judging Method When Image Does
Not Appear
1. Flow chart
STBY LED flashes
1 2
0.3 0.3
0.3 0.3
When the STBY LED does not flash, the power supply circuit is defective.
2. How to find PDP unit trouble
1) The power must be supplied normally to the PDP unit.
This power is supplied through two black 8-pin
connectors from the power unit. The kinds of power
supply are 160 V line, 60 V line, and 5 V line.
PFM-42B1, PFM-42B1E
Section 4

Trouble Shooting

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
3 6 1
3
X SUS TEMP (DD CON)
Y SUS TEMP (I/O Block)
Center TEMP
Digital 5V
6 times PANEL FAIL (PDP)
2
2) As input signals, H.SYNC (negative polarity), V.SYNC
(negative polarity), BLANKING (negative polarity),
CLOCK and RGB digital data (8 bit x 3) must be
entered normally and DISPEN must be "high".
If no images appears through the above conditions are
satisfied, the PDP unit will be defective.
4-1