3-2
FWD-42PV1/42PV1P/42PV1A
4. Mal discharge
.
Check signals of YDT, YDB, and Z SUS boards and
check Y SUS board voltage (
_
Vy, Vsc).
.
Check YDT and YDB boards.
.
Check CTRL board.
3-2-2. Plasma Display Panel
1. Image is not displayed.
.
Check all connectors.
.
Check the Exhaust tip.
.
Check blink of LEDs on the CTRL board and check the
5 V CTRL voltage.
.
Check fuse on the Y SUS board and check Vsc,
_
Vy,
Vs, V5 CTRL voltage.
.
Check fuse on the Z SUS board and check Va, V5
CTRL, Vs voltage.
2. Vertical bar failure
.
Check all connectors.
.
Check peripheral circuit and connecting of the XR and
XL borads.
3. Horizontal bar failure
.
Check all connectors.
.
Check peripheral circuit and connecting of the YDT and
YDB borads.
