Question about Televison & Video
I was told about 4 switches in the back, but cannot find this newer model
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Posted on Jan 02, 2017
Unplug,replug the tv about an hour later.Go in ur tv menu.Go to AUDIO,go down to reset it,well go back to factory setting.Ur sound should return.Not,than ur Tuner board is dead.Trires websites like Shopjimmy.com,Ebay.com to buy a refurbish Tuner board for the replacenent.
Posted on May 04, 2010
The common issue with polariod is there power supplies, Your going to have to fork out something for the repair if you not willing to buy a new TV here, A new board in this would be $175 labor another $80 or $90 tops. So you getting into $250 fast. This is why I say to all my askers NEXT TIME buy a extended warranty. This will need a new power board sorry to break it to you and its the common issue I am seeing on fixya.com from my premium chat customers. Please do be considerate as this information was free to leave postive feedback and maybe a ranting or two.. for all those expert involved in your case today.
Posted on May 29, 2010
No picture can be caused by dead T-CON board, main board, 24vdc power supply not supplying power to the backlights inverter board, bad backlights inverter board. So inspect for bad caps fisrt and also try the instruction below.
First, look at the screen in darkened room to see if you can see any slight glow from the screen, if it does, then the problem can be the T-CON (not getting the 12vdc) or the main logic board not feeding the signals to the T-CON board.
if not, next place to check will be the power supply module, make sure it has 24vdc which is required by the backlight inverter to work, the reason for not having 24vdc can be from bad DC filter caps (leaking/bulging top, high ESR) or short circuits in the inverter board which will cause the 24vdc supply to go into shutdown mode, so you may have to disconnect the power cable that feed the inverter board to see if the 24vdc will work without the inverter board hookup, you will need to apply about 3~4 amp of load to the 24vdc to make sure it can handle that. There are fuses on the backlight inverter boards also. So there is some troubleshooting you will have to do to find out the causes of the problem you are having.
If you are going to DIY and have proper tools, electronics knowledge, and know safety precaution then please read on:
Basic LCD monitor and TV troubleshooting guide:
Failed TV and Monitors pictures: http://s807.photobucket.com/albums/yy352/budm
Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague
Capacitors kit: http://lcdalternatives.auctivacommerce.com/Default.aspx he can make you a set of caps.
Or www.digikey.com, just make sure to use caps with low ESR, 105c, high ripple current and long life rating such as PANASONIC FM or FC series.
Please post back what you find.
Posted on Mar 18, 2011
SOURCE: no power light,no sound no
It could be just a few bad capacitors on the Power Supply, there could be a bad capacitor on the Y board if its bad it needs to be replaced with the buffers together
If you want to attempt the repair yourself you can do a visual of the power board caps will appear swollen on top.
but if otherwise, There are two places to look for the problems, the backlight inverter board and the power supply. Look at the power supply first since it is easier to get to, look for burnt parts, bad capacitors, etc. Look for 5vdc, 12vdc, and 24dvc.
This will require you having basic knowledge in electronics repairs and do take care in handling the power supply of the television..
I hope that will help
Posted on Aug 05, 2011
Tips for a great answer:
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