Question about NEC PlasmaSync PX-42VP2A 42 in. Television
Thanks for your suggestion. From what I can see, there is only one small glass fuse on the PSU board, which is ok. The set attempts to power up, then appears to shut down again, approx 30secs later, returning to standby.
If you disconnect the PSU from the line board, then the PSU appears to stay on, suggesting a problem on the line board somewhere, or maybe the PSU has a fault, not ouputting the correct voltages. This would depend upon whether or not the PSU is open collector type or not, which is information I do not have.
The set was manufactured around 2005 I believe. I have been in touch direct with NEC, who inform me that no schematic drawings or service manual data is released for this model. Without this information to hand, I feel I am clutching at straws, as you have no knowing of what voltages or waveforms should be present at the various TP's on the boards. Any further suggestions you have would be most welcome. Many thanks, Dave.
I have a PX-42VM5A and my Power supply is a PNT-426 (by Sanken Electric Co. LDT). Here are my specs: INPUT: AC 100-240V; OUTPUT: (there are nine outputs) +170v 1.6A; +60v 1.6A; +5v 4.0A; +2.5v 1.9A; +3.5v 1.9A; +7v 1.0A; +12v 0.5A; +12 v 1.9A and +6v 1.2A
Posted on Jul 07, 2009
SOURCE: NEC PX-42VM3A 42" Power problem
Yes the clicking noise does confirm a power supply related issue. The clicking noise is caused by the relay switches turning themselves of due to over load of certain circuits or it was not reset after a previous power surge. Rest the tv by unplugging the set from power supply, hold for 2 minutes and plug it back in. See if the problem persists and let me know.
Posted on Apr 19, 2010
i have NEC 42 inch and the screen has colors ines and cant see the screen. It also has the ESPN logo on the bottom right hand corner. i canchange it but i cant see the screen
Posted on Jun 26, 2010
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