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Ive got green lines runing down my NEC 42" plasma.Does any one know what auses this?

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Pixel Board Could Be In Needed Of A Repair

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My nec 42 in plasma tv has a black line coming from the bottom of the tv to the top can this be fix


double check that there is no interverance from the lead (try adiverent lead iv not check or get somwhone to check the internal connections that they are not lose or dirty other wise proceser board us

May 20, 2010 | NEC PlasmaSync 42MP2 42 in. Television

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Hi. When I switch on my NEC 42" Plasma (PX-42VM3A), the on light changes from red to green but then nothing happens. I have box-loads of spare parts but would appreciate any assistance in pointing me in...


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.

Apr 06, 2010 | NEC PX-42VM3A 42 in. EDTV-Ready Plasma...

1 Answer

Cracked plasma screen


A plasma display is a very expensive part to replace. When the plasma display is broken, the tv is usually not worth repair.

Call Nec at the number listed on the owner manual, and ask a quote on part or repair.

Regards.

Jul 11, 2009 | NEC - 42" Commercial Plasma Screen ****(no...

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106cm LG plasma tv 2in black line down centre of screen


normally the line down the center can mean that the lcd has become disconnected from the driver circuit. or that the driver circuit its self which is mounted to the edge of the lcd has blown out some of the drivers,
it is not usually the video sync circuit that is bad in this case because the whole screen would tend to be dead.

Apr 07, 2008 | LG 42PX5D 42 in. Plasma HDTV

1 Answer

My tv urgent


Hi - first check that all the fans are rotating - the set will shut down if they are not.
***** WARNING potentially FATAL voltages (up to 400V DC) exist on the PSU boards - if you don't know exactly what you are doing don't ! *******
Unfortunatly the fault could be on a) PSU b) CPU board, as this monitors the PSU voltages and will shut down the set if the measured voltages are wrong c) plasma drive circuits - if these are drawing excessive current, or someother fault exists the fault feedback signal to the CPU board will activate and the set will again shut off.
Check the PSU voltages, the standby power must be OK otherwise the set wouldn't work at all !. The +5V switches on first followed by the +70V and +170V (about 1-2 secs delay.)

If the 70 and 170 dont come up try removing (with the power DISCONNECTED) the two large double row connectors on the PSU board near the 70/170 V test points - these supply the plasma drive circuits - the set will still switch off as there is a fault feedback line from the drivers, but it should stay on long enough to check the voltages.

Feb 07, 2008 | NEC PlasmaSync 42MP3 42 in. Television

1 Answer

Nec 42'' plasma


Try holding down the 'INPUT SELECT' button, then press the power button on, on the tv at the same time.

Oct 29, 2007 | NEC PlasmaSync 42MP3 42 in. Television

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