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Sound can change channels,but blank screen - Televison & Video

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Back - light problem. Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis. http://electro-medical.blogspot.com/ To some model sets; especially LED back-lighted types; the back-light inverter circuit will be part of the main power supply board [SMPS]. In such cases, the power supply board might need replacement. To some models sets, the back-light inverter and SMPS section circuit will be integrated at its main board itself. If so; the main board should be replaced. To some models of sets, all these section circuit will be integrated at its main board. If this is the case, you have to replace the main board.

Posted on Dec 26, 2016

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Posted on Jan 02, 2017

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Fix blue screen av27870


Hi. Switch off (mains switch) the VCR. Then see if you can change channels with your TV remote. Blue screen mostly means that no channel has been programmed. If there is , you should at least have the sound. So, if you have sound, there is an internal problem in the TV. If no sound appears, try to get into setup mode (button Menu)
and programm your channels. I suppose there is signal on your normal areal connection. Check this out with another TV set, or use the tuner from you VRC. I know there are a lot of possibilities, but you can sort this out, step by step. Good luck.

Oct 18, 2014 | JVC Televison & Video

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Issue with Samsung LE32B450. After the TV has been on for about 5 minutes, when you change channel the screen goes blank and the sound goes off. However, the TV is still on as pressing the power but


Just do a hard reset to this set and check. Unplug the TV from AC mains wall socket, and re-plug it back after 10 minutes or so. This must make it a hard reset.

Jan 12, 2013 | Samsung LE32B450 32 in. LCD TV

1 Answer

Phillips 47pfl3603d blank screen with sound


if the Tv have back light the problem is t-con if not the problem is inverter

Jun 06, 2012 | Philips 47PFL3603D LCD TV

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On month out of warranty screen goes blank


That's Insignia brand - it's not very good quality!
Sorry for you though!

Dec 28, 2009 | Insignia IS-LCDTV32 32 in. Television

1 Answer

Auto Set Channels


1ST) see if the power is being turned off on the machine from the power source.Do you have a time screen? A screen that tells the time, is it blinking ? You could have a loose connection to the AC plug. Does the machine have a "back up" memory battery ?
2nd) Sound on only 2 channels thru VCR is a circuit problem.

Aug 13, 2008 | Zenith VCS442 VHS VCR

1 Answer

TV SCREEN IS BLACK, SOUND IS ON, CHANNELS WILL CHANGE, DVD WILL PLAY, BUT ONLY SOUND FROM TV


sounds like the vertical deflection has blanked the tubes for protection. Check the solder on the vertical output IC for bad solder joints

Aug 09, 2008 | Toshiba Televison & Video

1 Answer

TV blank, sound okay, picture comes for half a second while switching channels


i am a technician and i too have this issue. if any of you can get a schematic and service notes, send them to trae3@live .com and i WILL find the problem and report to each of you. i cant get any help from sears all i need is to speak with a technician who actually works on these things, get the paperwork and then i am sure it is a matter of a module swap. any info will help us!

Jun 23, 2008 | Protron PLTV-26 26 in. HD-Ready LCD...

1 Answer

Sound stays on & picture goes to blank screen


I do not see any reference on this problem and I even checked with Sony. If you are on a cable box, I suspect that is the problem.

Oct 25, 2007 | Sony KP-43T70 43" Rear Projection...

2 Answers

2 problems- 1-gasket is hanging loose on top of protection screen. 2- TV goes blank and I lose the picture and sound only on some channels at 9:00pm every night


unscrew the screws along the sides and top at back. gently lower screen forward and look inside--you should see the gasket--reattach it or remove it...I just removed it after staring at it for a year or more

Sep 10, 2007 | JVC AV-48P575 48" Rear Projection...

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