SOURCE: Panasonic Viera TH-42PV7HS Plasma keeps shutting down
Hi to all, My 42" Panasonic plasma have the same problem. It turned itself off and now red light flashes 7 times, than after short pause 7 times again. And so on. Any ideas what is wrong??
SOURCE: samsung lcd tv power problem
Check the solution by billn352: $7 Fix! It Rocks!
billn352 even has the cost of the replacement capacitors correct! Thanks guy!
When my Samsung quit six months ago, the three solutions posted on FixYa were (1) Pay $300+ parts and $200+ labor to have it fixed, (2) Do #1 then rag Samsung until they repay you for the defective circuit board and (3) Get another TV and avoid getting stuck eith yet another defective circuit board. I chose to buy a 47" Phillips at Wal-Mart. I don't feel like paying big bucks every 18 months to keep the Samsung alive. I put the Samsung in the closet and took my lumps.
This month I revisited the solutions on FixYa and found the post by billn352! A $7 FIX and it Works!.
I pulled the Samsung out of the closet, laid it on a padded table, removed the plastic back (lotsa screws!), located the capacitors and removed the circuit board (more screws). The four capacitors are easy to locate. At least three of mine had black **** oozing out of the top of the cans. I ran down to the strip shopping center and got the four replacements at Radio Shack--under $7 with tax.
The capacitors are polarized (they have a positive and a negative lead) and I have a buddy who loves to solder and drink beer. So I asked him to do the hot stuff, assisted by a copy of the billn352 post to further identify the capacitors by component number and a six-pack of Miller Lite. Yes, the replacement capacitors are larger than the originals and Yes they fit nicely! So easy that a "drunk redneck" can do it!
I also checked the current prices for this model Samsung on the Internet. On one list, a new unit was offered for less than $400. Most I found were in the $500-$900 range. Give it another year and what do you think these sets will be worth! A $7 fix is worth doing: Maybe a $400 fix is not.
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SOURCE: stays in standbye and will only flash green (power on) twice before staying in standbye
The 6 inverter transformers on the bottom of the picture is the problem and what need to be tested.
Unplug the 6 wires that goes to the LCD screen. Use a multimeter to test for resistance from each output plug on the board. The one without the resistance is the bad one.
If this doesn't locate the bad one this way, Each plug should give out DC voltage if working properly. Test each plug for voltage.
The TV will automatically turn off in a couple of seconds like before. You'll have to keep pushing the power button to test each output plug for voltage.
Soon as you find the bad Inverter Transformer, just solder in a new one and the TV should work fine after that.
The part # for the Inverter Transformer is LTZ2PC0MS008.
Here's two places to get them:
http://www.partstore.com/Part/Funai%20Corporation%20Inc/Funai/LTZ2PC0MS008.aspx
http://www.encompassparts.com/products/?LTZ2PC0MS008
SOURCE: samsung lcd tv ltm1755b won't turn on (power light stays red)
Problem: Samsung LTM1755B with only a blinking yellow LED when you try to turn it
on.
Solution: I just had one of these come in. I opened it up, and found
the U501 capacitor a little suspicious looking, in that it had a
deformed top. It was a 470uF 16V electrolytic 105degC 10mm x 12mm. I
replaced it with a very good quality 1000uF 16V electrolytic 105degC
10mm x 16mm Nichicon UHN1C102MPD. After that repair, when I tried to
turn it on, the LED was yellow for a second, then green, then I got a
picture, and it appeared to work great. I then asked the owner a week
later how it was working, and they said it was working just like new!
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