LG 42PX4DV 42 in. EDTV-Ready Plasma Television Logo
Anonymous Posted on May 21, 2013

Tv signal tv let out a pop and now no picture only sound.can this be fixed

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I have a wd-65738 TV . Heard pop no picture with

That pop was probably a capacitor blowing up in the power supply. Could be another power component too. Get an estimate from a TV repair shop first to see if it's worth fixing or flat screen TV time.
0helpful
1answer

No picture or sound on some channels

we cannot get a picture or sound on several channels. Otherwise the TV works fine. Any solutions? as you get p&s on several channels so your ser is ok the problem 1 loose contact near tuner or it is defective. 2 tuner signal line .
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1answer

HeMy Vizio P46 started losing the picture but there was still sound. Then the TV had to warm up first and the picture would pop in still with sound. Then the picture went black and now there is no sound....

The tv Tuner signal board is the causes and the problems.That the board,where the incomming broadcasting signal cable plug into it.Tries websites like Shopjimmy.com,Ebay.com to buy a refurbish tv Tuner signal board for the replacement.
4helpful
1answer

My Sony Grand Vega (KDF-E50A10) LCD just made a loud pop sound and now there is no picture. The only sounds are a loud buzzing coming from the back....is this a burned out lamp??

Yes, loud pop sound was broken lamp in tv, replacement of lamp will fix tv problem.
Lamp replacement procedure is easy and would be written in user manual.
Please buy Sony original lamp for good picture in tv.
Thanks.
2helpful
1answer

No picture but have sound

That click might have originated in 2 places: either it was the main relay disconnecting or it was the sound of a capacitor popping. Both are very severe problems - they signal that the power source of your tv has just failed.
Fixing it is a job for someone with electronics experience, if you're not one then call a repairman.
1helpful
2answers

32'' Vizio LCD no picture or sound

Your filter capacitors have popped due to diodes shorting, P-channel FETs shorting from gate-to-drain. Pull-up resistors have changed value and as a result your capacitors have peaked (popped)....so now the tv is in protection mode to prevent further damage to your tv. Take it to your local shop for servicing, or take it back if its under warranty......
6helpful
2answers

Insignia NS-32LCD has sound but no picture - screen is black. Tried playing a dvd and had sound and no picture, just a black screen.

If an LCD TV has sound but no picture do the following:

Use the source button to ensure that source is not set to the wrong input.

Try unplugging power cord for ten minutes, to ensure it is not a setting problem.

Check all the video cables at the back of TV.

Check Light /Color settings.

If problem persist and does not depend on external receiver or settings, then it is likely an internal fault.

If it has sound but no picture then one of the following parts is faulty, and must be tested and replaced:

Theinverter is the high voltage board that provides variable power to thebacklight lamp. This is the most common. When inverter is faulty youcan get no picture, or a very dim picture that can only be seen bypointing a torch light with a 45 degree angle on the LCD surface fromvery near distance.
The inverter must be tested by reading voltages with a multimeter.

The LCD ribbon cable/LCD display and connectors.
Thisis quite uncommon, but happens. If the TV had been hit or moved the LCDcable may have slipped out, or the LCD connector may be damaged.

The LCD controller board.
Thisis the board that controls the video signal, it is difficult to test,as there is need to read determined values on IC pins. To test thisboard you need to purchase a service manual and follow thetroubleshooting diagrams on service manual.

Input/Output Signal boards.
This are the boards where youconnect the video and audio cables, if a signal board is defective,then you may get no picture on particular inputs located on faultyboard.

If under warranty contact the manufacturer ringing the number on the user manual.

If you want to repair at your own expenses, just locate any good qualified repairer.

If you want to DIY you find parts here,

All: Appliance parts, electronics parts & more from PartStore.com

Encompass Parts Distribution

LCD/Plasma Electronic Replacement Parts: Plasma & LCD TVs, Appliances |
1helpful
1answer

TV Picture Pops In and Out Toshiba Color TV CZ27V51

mine was doing the same thing. If i put pressure on the cable input from left or right it would fix this.
0helpful
1answer

Pioneer SD-582HD5 - screen went black, no sound, Poor remote feed

The blue tube might be leaking coolant in the high voltage area, that is the cause of the POP. This repair might not be a DIY because of the lethal high voltage surrounding the CRTs tubes.
The slow response from the remote could be because the coolant has affected the main board where the IR signal are going to the remote sensor.
Let me know if you require further assistance.
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1answer

Sound but no picture at all

just Check for loose Solder.
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