Question about Philips 42PF7320A 42 in. Plasma HDTV
Check the connector from the logic board that will be the board under the small signal board. The small signal board have the AV input on it. Check the connector from the logic board to the power supply there should be one connector between those 2 boards. On the power supply side second pin from the left it will say Vs_On if the set has 0 volts the problem is the SSB or the logic board. how to determine that is to Use 2 Jumpers to short J8003 & J8004 on the left edge of the PSU (see figure below).
Use 1 Jumper to short CN2012 on the lower left part of the Logic PCB (this will supply a 100% White signal to the Display).
Plug in the AC to the PSU thru CN8001.
If PDP panel operates with White field screen then problem may be the SSB.
Remove back cover.
Plug in power when tv goes into error protection, check power supply and see how many times the led flashes. Right below the flashing green led there is a list 1-13 of error codes and what they mean. Your problem will probably be an error 7or 8 VSET or VSCAN . Which ever error code it gives you VA VSET or VSCAN or whatever it indicates look at the cable connectors to the power supply unplug that connector and the TV will stay on. And there will be your problem.
Posted on Sep 12, 2009
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Posted on Jan 02, 2017
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