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No picture and sound lg lcd 42 - Televison & Video

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Sounds like you have blown caps...

Posted on Aug 21, 2008

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My LG 60PH6700 plasma TV recently started acting up. Red power light but no sound, no picture. I've replaced the YSUS and Y buffers and the symptom persists. Any other ideas on this? Many thanks.


Fault at its main digital board. Short circuited component/s at it. Contact any service technician; or the authorized service center. If you wish to get some details; check the site linked here. Pull up older posts. http://electronicshelponline.blogspot.com/ In most cases, the main board might have to be replaced. If so, a software [firmware] update too might be necessary.

Jan 11, 2017 | LG Televison & Video

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Lg model 39ln5300 no picture has sound


Fault at its main digital board. Short circuited component/s at it. Contact any service technician; or the authorized service center. If you wish to get some details; check the site linked here. Pull up older posts. http://electronicshelponline.blogspot.com/ In most cases, the main board might have to be replaced. If so, a software [firmware] update too might be necessary.

Jan 10, 2017 | LG 39LN5300 39" LED TV 1920x1080, 60 Hz,...

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Hi there, my LG Plasma 42PC5D show no video or sound. I was watching video by the HDMI input. Should I change the YSUS board, the ZSUS board or any other? Thanks for your time replying.


If you wish to get some details; visit the site linked here. Pull up older posts. http://electronicshelponline.blogspot.com/
Faults & possible causes to LCD & Plasma TVs are given with illustrations. You can get an idea about the fault to an extent.
Search the site by type in the "BRAND NAME" of your device; (Exclude the model number), in the "Search box at the top right of the display window of the Homepage" to get gathered related posts

Jan 09, 2017 | LG Televison & Video

1 Answer

Lg 27 in gray smudge on inside of screen looks like a large fingerprint.


If you wish to get some details; visit the site linked here. Pull up older posts. http://electronicshelponline.blogspot.com/ Faults & possible causes to LCD & Plasma screen are given with illustrations. You can get an idea about the fault to an extent. Faults to all LCD & Plasma screen are similar, irrespective of its brand and screen size.

Jan 09, 2017 | LG Televison & Video

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LG LED TV has sound but no picture. Went out all of a sudden. Image shows with flashlight. Flashes for split second on power up and power down.


Your screens back light has most likely failed and or the voltage controller for the back light, both should be replaced.

Jan 08, 2017 | LG Televison & Video

1 Answer

I have an LG model 55LH40 purchased in 2010,Screen has a greyish smoke colored vertical streaks in it, very noticeable on a white background. Any ideas what may be wrong?


If you wish to get some details; visit the site linked here. Pull up older posts. http://electronicshelponline.blogspot.com/ Line faults & possible causes to LCD & Plasma screen are given with illustrations. You can get an idea about the fault to an extent. Faults to all LCD & Plasma screen are similar, irrespective of its brand and screen size.

Jan 07, 2017 | LG 55LH40 55 in. LCD HDTV

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Replaced convergence on toshiba 42HDX82...put back together now no picture or sound...could i have rehooked up wires wrong?


YES YOU COULLD HAVE WRONGLY HOOKED UP THE WIRES AND TANGLED THEM UP WHICH IS CAUSING THIS TO HAPPEN BECAUSE ITS CAUSING THE THE VOLTAGE THE TO ENTER AND CAUSING THIS TO HAPPEN

Nov 30, 2016 | Toshiba 42HDX82 42" Rear Projection...

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