Question about Televison & Video
NO SOUND OR PICT BACKLIGHT LIT GREEN LED ON FRONT LIT NO REMOTE OR LOCAL CONTROL FUNCTIONS.FIRMWARE PROBLEM ???? THANKS P.H.
Posted by Anonymous on
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Posted on Jan 02, 2017
Hi, If all else fails, try do a hard reset. You can verify from your manual, but in some units, this is merely unplugging the unit from mains for a couple of hours. Try again, if it still shows error codes (blinking lights) you probably have to seek the services of a qualified professional. Hope this be of some help/idea. Good luck and kind regards.
Posted on Aug 26, 2007
Recommend opening it up and looking at the power board and see if there are any visible Bulged or leaking capacitors.
Bad caps are a major source of computer and LCD no post problems.
If you find em, then just find replacements with the same uF and voltage and solder them out/in.
Posted on Jun 28, 2010
SOURCE: Toshiba 22LV505 TV-DVD:
Check the DC filter caps in the power supply first. Check the 24vdc (or 18vdc for this 22" model) to see if it goes away when the screen goes black.
There are main AC fuse, backlight inverter fuses, T-CON fuses.
If you are going to DIY and have proper tools and know safety precaution then please read on:
Please see my basic troubleshooting guide here:
Posted on Jul 08, 2010
the problem on ur tv is the power supply if u take the back cover off and look close to the power supply u would some bad capacitors , 3 to 6 bad cap or it can be only one thats way the tv is not working , if u try to replace this bad cap the cost woulbe about $50 with the solder station or u can call a tv repair shop and see how mush cost to replace the bad capacitor on ur power supply but u has to take the power supply from the tv and take it to the repair shop
Posted on Dec 31, 2010
SOURCE: Hi, I'm giving you a full
Good day!!! But you said that you order PSU and realize that its not the problem...Since then the PSU is there I suggest to replaced it because the possibility of faulty PSU is big...Normally if the PSU got a voltage drop you can also have blinking LED and lit red... But if the problem is still there after you replaced the power supply board...That problem could be on the main board.. If you need more clarification or query just add a comment and I will give the info you needed... Thanks for using fixya.. Have a nice day!!!
That problem is usually have 2 causes..Its either power supply board or main board..
But you said that you order PSU and realize that its not the problem...Since then the PSU is there I suggest to replaced it because the possibility of faulty PSU is big...Normally if the PSU got a voltage drop you can also have blinking LED and lit red...
But if the problem is still there after you replaced the power supply board...That problem could be on the main board..
If you need more clarification or query just add a comment and I will give the info you needed...
Thanks for using fixya..
Have a nice day!!!
Posted on Aug 11, 2011
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could be three different things.
1. could be the crt itself as a tube with dfective phosphure wil do this
2. could be the vertical ic on the crt board
3. could be the focus pac. located in front of tv with 6 adjustment knobs on it.
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