Question about Televison & Video
Tv lcd not comming out of standby mode
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Posted on Jan 02, 2017
SOURCE: TV & Tuner stays in Standby mode
Assuming you have tried changing batteries in your remote and any front panel power switch your set has, the main power supply is probably at
fault and without some technical background and a couple of test instruments,
you will not be able to do the repair yourself.
What you can do though is; unplug the set, let it
stand overnight or at least several hours, remove the back panel and look for a
separate board with mostly larger components on it; it will have a ferrite core
transformer on it and several larger capacitors which are cylindrical and
mounted vertically to the board.
Before touching anything inside, especially on that board, allow several hours to be safe since the larger capacitors can hold a painful voltage charge for some hours.
If you see signs of overheating such as discoloration of the board material, it may not be repairable but if you can find a part number on the board, you might be able to buy the power supply and install it yourself.
If there are no signs of heat damage to the board, there may be companies offering to repair it as a subassembly instead of repairing the whole set which could be much more expensive.
If you choose to replace or have it done, the power supply still may not be at fault since most are capable of switching on and off if a downstream problem is causing an overload.
Posted on Oct 29, 2008
SOURCE: WONT TURN ON
Most likely, the problem is a defective Main Processor Board. This is the board with the antenna, RCA and HDMI plugs. You cant repair or replace component parts on this board, so dont even try. You must replace the complete board. The TV says Sylvania, but it is a bloody Funia TV. Several years ago this foreign company bought out broke-azzz Sylvania . They are still carrying the Sylvania name since Sylvania was a popular TV name in the 70s. Every electronic company in the USA is now owned by the Chinese, so call Funai and order the part from them. Dont be surprise if they dont have a clue what the heck you asking for. America and all electronics have gone to the puddles. Do you know why? GREED.
Posted on Jun 10, 2009
Tips for a great answer:
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Feb 08, 2011 | Toshiba Regza 37HL17 37 in. LCD TV
SYMPTOM: Won't turn on or intermittently won't turn on, Red LED Flashes.
CAUSE: Loss of Main Switched Power Sources. Standby power is OK.
SOLUTION: Replace Regulator IC Q820 with Toshiba Part # 23135094
Jan 18, 2011 | Toshiba 42HL196 42 in. LCD HDTV
Sep 25, 2009 | Sharp 27N-S100 27" TV
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I had a same problem with sharp LC-40LE340E. The service told me to change motherboard but I decided to buy a new LG TV. The sharp TV I left unplugged for a 50 days and after that when I tried again the tv started normally. I was Really surprised. Don't spend money just wait and check again. firstname.lastname@example.org
Oct 12, 2007 | Sharp LC-65D90U 65 in. LCD Television
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