Trouble Shooting; Judging Method When Image Does Not Appear - Sony PFM-510A1WU Service Manual

4-1. Judging Method When Image Does
Not Appear
1. Flow chart
Power restart
3 times or less?
Y
99
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-510A1WU/PFM-510A1WE
Section 4

Trouble Shooting

Image does not appear.
Check service code indicator display.
12
22
Hold down
after about
5 seconds.
N
Y
Power auto
restart?
N
N
Check if voltage
is present in DIGITAL
5 V line.
Y
PDP failure
N
Hold down
after about
5 seconds.
Y
Y
79
N
POWER SUPPLY
failure
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