20 Most Recent NEC PX-42VM3A 42 in. EDTV-Ready Plasma Television Questions & Answers

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NEC PX-42VM3A 42" Power problem

http://www.retrevo.com/support/NEC-42VM3A-Monitors-manual/id/572bh843/t/2/
http://www.scribd.com/document_downloads/direct/7580885?extension=pdf&ft=1270861414<=1270865024&uahk=fMkaS
With this symptom, it is impossible to tell what the exact "Cause" of this symptom is. Contrary to what people may think, he LED's do not tell us what is wrong, sometimes, the symptoms may indicate the "Area", just say in your case it is the X board. BUT thats NOT where the "Fault is" thats just the part that is affected. These days unlike the "Old" analogue days it just isn't realistically possible to fix anything but the most basic of problems with todays sophisticated units. This is quite apart from the Safety aspect, any unit that can cause a fire or have an explosion, or both, is NOT to be treated lightly, and and the repairer, of the unit is legally responsible, another thing to think about. Also, one must have tools, a Multimeter, a soldering iron, a deslodering iron, an oscilloscope, a signal tracer, tools, and most important of all, a Service Manual, without which, there is no way to even begin to understand and fix it, and more importantly Program it , AFTER it has been fixed. As these days a TV, is a PC, a Tuner, and an HDTV Monitor, and more, all in one. in the "old" days TV"s were more, rudimentary, and built to last for 20 years, and a "Parts" supply was set aside. They usually used to fail for only a few reasons, and they while still difficult, were less difficult to repair. Electrical knowledge was transferable, and they could be and would respond to, This-is-the-symptom-This-us-the-Fix, But that no longer applies, as now, it can be a Fault on I squared Bus, or "Sensor" failure, or it simple may have "Crashed" just like a PC, It could be a Diode go bad, and that will stop the whole thing. You see, in the day, the sets were Very "Fault Tolerant" because they were Analouge, and a faulty, component, or more sometimes, the set would always diplay something usually, and when they didn't it was one of anly a few things, sure there are always the horrid ones, and there are pleanty of those, but all in all it was quite easy. But with Digital Electronics, it either goes, or it doesnt, there are usualy few half measures. I mean thats the definition of logic either going or not. So it can take very little to completely paralyse a set, and generally give the only sysmptom, it can, by not working, usually No picture, or the like. So you, see the list is endless almost for any given SYMPTOM, as that is what is being seen, not the cause, as I keep going on about. Also any fault, usually involves the Power Supply, it is either the cause, the cause of the damage, or it is damaged. or ALL of them. Then after you have done the electronic repairs, you then must program the set to work, and align, and set up in general, any one of those settings missed or done wrong, back to square one. So, it is nearly always my professional opinion that one should always get a "Quote" form the manufacturers, in your case, NEC, contact, a local office, and ask for a recommended service center, I cannot stress how important that last point is. It is even worth the cost of shipping. you see an authorised service agent, will have trained staff, trained on their brand, also they have first hand access to parts, original parts. This will actually save you money and ensure you can actually get it back fixed. Of course asking for a "Quote" also gives on the option of repair or replace. Often my clients,do not go through with repair, unless it is moderate, but in some of the more costly jobs they see it, as do i, that a replacement, with a warranty, is a better option. As an aside here, one could then tear the TV down, and sell the Known Good bits. You'd be surprised who needs parts, i myself often must by from third party sources to effect a repair. So money could be recouped, somewhat,and help out someone else
4/19/2010 12:07:42 PM • NEC PX-42VM3A 42... • Answered on Apr 19, 2010
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Hi. When I switch on my NEC 42

CHECK FUSE AT Y-SUSTAINER PCB. IF BLOWN, DO NOT REPLACE IT! LOOK AT SCAN CONVERTORS BOARDS. THEY ARE CONNECTED BETWEEN Y-SUS AND PLUGS FROM DISPLAY(LEFT SIDE WITH FACE DOWN, BACK OPEN). SCENARIO: SCANS GOT BURNED(LOOK FOR A SIGNS AT THOSE LONG BOARDS: UPPER&LOWER).FIND ANY IMPERFECTIONS: REPLACE ALL 3 BOARDS: Y-SUS, UP/LOW SCANS.LAST THING: IF FUSE IS OK, CHECK POWER SUPPLY FOR BLOATED CAPACITORS(BIGGEST BOARD IN A MIDDLE OF THE SET) SAME SERVICE POSITION.
GOOD LUCK,
LET ME KNOW HOW TI GOES.
ALEX'S TV?PHILADELPHIA, PA.
4/6/2010 4:09:23 AM • NEC PX-42VM3A 42... • Answered on Apr 06, 2010
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Vw37l no sound no picture

yes that is what you need main board.i have
47 inch with same problem and I put the main board and now is working
8/18/2009 5:55:09 AM • NEC PX-42VM3A 42... • Answered on Aug 18, 2009
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Power lite blinks red and will not turn on

Sounds to me like you're experiencing an issue with the power supply in the unit.
11/21/2007 11:23:47 AM • NEC PX-42VM3A 42... • Answered on Nov 21, 2007
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What do these brakes on tape spool wheels do in my NEC N917U VCR?

andrew answered this yesterday and someone deleted it. its to keep the tape from freespooling
5/1/2021 3:46:23 PM • NEC Televison &... • Answered on May 01, 2021
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I don't have a remote how can change settings with just the tv buttons it is an nec nlt-32xt2 model.

Try going to the NEC website and download a user manual >>> http://www.generalmanual.com/Televisions/NEC-NLT-32XT1-LCD-Television.htm <<< That would I think, have the instructions about doing just that. Regards Geoff
1/7/2020 7:06:39 AM • NEC Televison &... • Answered on Jan 07, 2020
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Do I need a converter box for my 32 in NEC flatscreen

Depends on the model!
8/25/2019 6:38:16 AM • NEC Televison &... • Answered on Aug 25, 2019
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Trying to connect Bauhn tv to NEC model VN-25. Back of video player has audio L &R out and video out with 2 plug points

is it r,w,y on top of each other? choose one and see if functions 1 may say in oter out
5/12/2019 8:18:00 AM • NEC Televison &... • Answered on May 12, 2019
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Trying to connect Bauhn 54 4K UHD LED LCD TV to a NEC model VN-25 VCR.

Does the VCR have Component outputs( Red/White?Yellow)? If yes use AV1 to connect them
5/12/2019 8:12:52 AM • NEC Televison &... • Answered on May 12, 2019
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How do I remove teletext?

The teletext button on the remote control handset, has usually a toggle action. One press for on and another press for off.
Hope that helps.
4/9/2019 9:03:20 AM • NEC Televison &... • Answered on Apr 09, 2019
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Hi I have a nec tv model PX-42VR5W Serial NO 4901256i am trying to connect it with my set box but the problem is the tv doesn't have a antenna connection . how can connect the tv regards

If you have an HDMI cable you may be able to hook it up that way. If not try a audio video cord if your box has either of those it should work.
10/2/2018 7:40:16 AM • NEC Televison &... • Answered on Oct 02, 2018
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