LG 50PS80 Training Manual page 81

Z - SUS PWB Testing without Y
Z - SUS PWB Testing without Y
PREPARATION:
1) The Power Supply must be working normally under Light Bulb test.
2) Leave the Light Bulbs in place for the following test.
3) Jump the 17V from pin 1 or pin 2 P814 to the Z-SUS
connector P100 1~5.
4) Place the Scope on the Z-SUS
waveform Test Point FL103.
5) Confirm there is an Output from the
Z-SUS PWB (approximate 230V p/p)
This test confirms that the Power Supply,
Control Board and Z-SUS boards
are all working OK.
- SUS
- SUS
81
Light bulbs must remain
connected to the Vs from the
Power Supply to Gnd.
Failure to do so, will cause the
17V to fluxuate and cause the
Z-SUS to shutdown.
August 2009 Plasma 50PS80