4-1
PFM-500A3WE/500A3WG/500A3WU/510A2WE/510A2WG/510A2WU
Section 4
Trouble Shooting
4-1. Judging Method When Image Does
Not Appear
1. Flow chart
Image does not appear.
Check service code indicator display.
Hold down
after about
5 seconds.
Check if voltage
is present in DIGITAL
5V line.
12
22
.
79
PDP failure
N
N
Y
Y
Y
N
N
Y
N
Y
Hold down
after about
5 seconds.
Power restart
3 times or less?
Power auto
restart?
POWER SUPPLY
failure
99
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.
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.
