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TROUBLESHOOTING GUIDE(PDP)
1. Checking for no Picture
A screen doesn’ t display at all and condition of black pattern or power off.
(1) Check whether the CTRL B/D LED(D1~D4) is turned on or not.
(2) Check the power and signal cable of CTRL B/D.
(3) X B/D, Y B/D, Z B/D is well plugged in.
(4) Check the connection of X B/D, Y B/D and Z B/D to CTRL B/D.
(5) Measure the output wave of X, Y, Z B/D with oscilloscope(more than 200MHz)
and find the trouble of B/D by comparing the output wave with below figure.
- Measure Point fo Y B/D : TP (Connector P4 80 pin)
- Measure Point fo Z B/D : Connection part of panel (SUS_OUT)
- Measure Point fo X B/D : L1(RIGHT), L2(LEFT BOTTOM)
(6) Check the SCAN(Y side) IC
(7) Check the DATA(X side) COF IC
(8) Replace the CTRL B/D.
<A : Y B/D Output wave - 1FRAME>
<B : Y B/D Output wave - 1 SF>
Содержание PFM-42V1E
Страница 48: ...SCHEMATIC DIAGRAM 48 1 DSUB AD9888 ...
Страница 49: ... 49 2 SCALER ASI510 ...
Страница 50: ... 50 3 MEMORY ...
Страница 51: ... 51 4 FLI2310 ...
Страница 52: ... 52 5 VPC3230D ...
Страница 53: ... 53 6 CXA2171AQ BA7657 CONNECTOR ...
Страница 54: ... 54 7 MICOM ...
Страница 55: ... 55 8 POWER ...
Страница 56: ... 56 9 AUDIO ...
Страница 57: ... 57 10 OPTION ...
Страница 58: ...Sep 2003 P NO 3828TSO063A Printed in Korea ...