Having problems with your Flat Panel Televisions ?

Viera TC-P50ST30 My TV is DOA. No power, sound, etc. No standby light. Confirmed house fuse, batteries, plus, etc. good. Tried unplugging for awhile. Makes a noise when I plug in to powerstrip or directly to wall. Someone said possible short. Pulled back cover. Checked ribbon between power supply and main board. Meter reads 5 when main not plugged into power. Drops to 2-3 when plugged to main. Is that where the short is? Isolated main by disconnecting all other connections to main. Should I ju



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Viera TC-P50ST30 My TV is DOA. No power, sound, etc. No standby light. Confirmed house fuse, batteries, plus, etc. good. Tried unplugging for awhile. Makes a noise when I plug in to powerstrip or directly to wall. Someone said possible short. Pulled back cover. Checked ribbon between power supply and main board. Meter reads 5 when main not plugged into power. Drops to 2-3 when plugged to main. Is that where the short is? Isolated main by disconnecting all other connections to main. Should I ju


This may help... ... Panasonic Viera TH-50PZ85U Plasma TV

I have a Vizio VP42 HDTV (inside says LG PDP42X3U400). One day I turned on the TV and heard a pop. I took off the back of the TV and inspected the main power supply board (P/N 6709900019A). Capictor C802 had totally blown up. The tv would not power on at all. I removed U801 and when plugging in the AC cord I heard two relays turn on and then back off after 1 to 2 seconds. I gave up troubleshooting that board and bought a new power supply board. When I installed this board and plug in the


If Va and Vs are missing even when the Y-sus board is disconnected from power board then the new board is defective - return it. On the original one the board is shut down (the relays are disconnected) because there is still a short on one of its out ... Flat Panel Televisions

Sansui SV-3715LCD, I switch off the unit at the wall socket, when I plugged it in the next day there was no power, not even the LED indicator light on the front of the LCD activates. I checked the plug power and it has AC supply voltage right up onto the internal Switch-mode power supply board. Any suggestions


Continue to check--every set has a standby power supply that powers the remote circuit to turn set on and it runs 7/24 if set is plugged in.Never a good idea to turn set of by taking the AC away--it can cause micro problems(micro processor). ... Flat Panel Televisions

M228WDP-BZ - Pure white screen. Power supply board checked. Voltages through connector to main circuit board OK. Changed main circuit board without any improvement. Need to know the voltges that should be found at the connectors from the power supply board to the screen?


... LG 42LC7D-UB Television

Had a power surge on this tv model klv32s400a, no standby led completly dead. Have opened and checked the power supply as far as I can, supply is present on primary side of transformer but not getting to secondary side I need circiut diagram or perhaps you can tell me what else I could check. PS nothing looks burnt or short cicuit that I can find so far. Regards Anthony


... Sony KLV32S400A 32 in. LCD TV

I have a Magnavox 20MF251W/37 that when I plug it in it turns on to the standby mode (red power light). When I power it on with remote or by pressing power button it does turn on (blue power light). Shortly thereafter, I do see an image (snow at this point since I don't have it plugged to any video source). However, that image stays on the screen for only 1 second then disappears. The unit is staying on and is NOT going back into standby mode (power lights stays blue). I have replaced main


Hi tempcheck,\015\012\015\012Lot of brand have a common symptom when there's a malfunction in inverter board, it will automatically shuts down the unit. This is because there is a protection circuit designed connected from this board to the mai ... Philips Flat Panel Televisions

I have Samsung UN46B8000XFXZA LED TV. After power surge it will not come on. Plugging it in causes the blue power up light to come on for one second. The relay on the power supply (BN44-00270A) begins to click. The screen does not come on. All appears dead except for the clicking of the relay on the PS board ever few seconds.rnIf I unplug the connector from the power supply to the Main Unit Board (BN94-02661E) and apply 110v, the screen backlight comes on and there is no relay clicking. (


Yes based on your testing it appears that the power supply is at fault solely and you can opt to attempt a repair or replace it altogether. Unfortunately you will not be certain that the main board does not also need to be replaced until you have rep ... Samsung Flat Panel Televisions

I have a Hitachi plasma model# 55hdt79 that went black out. No display at all. Sound is ok. We checked the power supply unit and found out that 90v output is missing. We changed the power supply unit assuming that this is the cause, but still the 90v is missing. All the LED lights on in sequence and switch off after loading when I switch on the main power switch. This means no error. The TV can be switch on and off by the remote. Which board is probably the cause of this issue?


It sounds like the transformer on board has gone out (not the one in the power supply) and is no longer charging the panel. the board internally that holds the transformer will have a model number on it, any decent repair facility should allow you to ... Hitachi 55HDS69 55 in. Plasma Television

Television Tv stuck in standby front led blinking only.Once the front led is blinking will not stop blinking by switching off with remote or side contol on tv. The only way is by removal of mains plug. Power supply used is Vestel 17ips10-3. Will change power board if this fault is caused by faulty board. Can anybody in the know confirm that the fault as explained is likely to be caused by a fault in power supply board.


... Flat Panel Televisions

Hi, I bought a Vizio L32 HDTV10A that didn't power-up. There were charred components on the power board (an 8-pin IC with heatsink and 2 resistors). I replaced the power board, and the power LED then turned on (yellow) when power was applied. When the ON button is pressed, the power LED turns green for roughly 8 seconds and then the power LED turns yellow again. Nothing else happens. I checked many components (fuses, capacitor ESR, diodes, etc) on the main board and the master and slave inver


... Flat Panel Televisions

LC-52LE820 was working and all of a sudden went completely dead. Checked power supply outlet by plugging in another part of the house, but the TV is dead. Took it to be serviced and the repairman said the power supply on the TV was done (broken)


... Flat Panel Televisions

I have a Olevia lt37hvs, When i plug it in the blue(olevia)light comes on then goes off and the screen will be blue for 5-6 second then go black for 1-2 seconds then screen goes blue again and it just keeps repeating this process. i hear the big transformer on the power supply clicking like its being overloaded then the screen goes black. When i disconnect the main board from the power supply the clicking and flashing stop. Any ideas?


Tried to connect again the supply for main board and disconnect the supply for the inverter board of back light. and turn on the tv, if the indicator stay the inventer board was the cause of voltage drop at the power supply board. ... Olevia LT37HVS 37 in. LCD HDTV

Vizio vp422hd tv10a 4amp fuse blows on power supply only when i plug in j11 connector from main board (board with all the tv imput selections) other wirigng disconnected from main board. Is the main board bad or am i missing something?


... Vizio VP422 42 in. Plasma TV

My plasma samsung ppm63mf7: no power, all caps OK, ceramic fuses OK, I replace a failed sustainer board. Now power just clicks and blinking power lightrnSo I unpluged T-con board and Main board to check for shorts but problem persist.power board# bn96 03736a* does any body have experiance with this model Tvs


I had a similar problem with mine, i had to change couple of caps but it still would not power on. I ordered one online and it seemed to solve the problem. the power supply board for the TV are a bit expensive but this guys over at had one for under ... Samsung PPM63M7F 63 in. Plasma TV

Emerson PL-P42W-10A plug it it and the relays kick on and on the front of the tv the red power light blinks 5 times. I see where this may be the main board but could also be the power supply. Please help


... Flat Panel Televisions

I have a Vizio XVT553SV that powers up but nothing on the screen. The Vizio logo flashes org to white for 1.5 minutes then the V comes on the screen for 1.5 minutes. It will repeat this over and over. I tried the factory reset and it didn't work. I have the back off and no capacitors etc look bad. I could check voltages but the are a lot of wires coming from the power supply and I do not have a schematic. Any suggestions ? Thanks


That problem sir is usually cause of faulty inverter board...Try to replaced inverter board to fix your TV.. ... Vizio XVT553SV 55 in. LCD TV

I have a LG37LF65 LCD TV. Several month ago it broke down, at that time power supply was repaired. After a while after switching it on picture started to shake and then totally disintegrated. I have taken it back to service they said this is main board failure but since I cannot find proper board. Is It sure that is main board fault or can it be anyithing else? Can I check anything to be sure?


Check the power supply voltages to make sure you don't have another capacitor going out (the first one replaced is probably OK). Poor filtering on a supply voltage could cause the main board to misbehave. If the voltages are good, the shop tech is ve ... Flat Panel Televisions

FLX3211b when plugged in the red power light comes. Then when the TV is turned the red light turns blue and stays on. The Element logo appears for a couple seconds then the screen goes black. There is a red light that is on inside the chasiss. Is it the power supply or main board


The transformer for the backlight is usually what fails on the elements especially if the logo comes up briefly then the screen goes out. I would check the transformers. ... Element Electronics FLX-3211B 32 in. LCD HDTV

I have a vizio vp422 that made a loud pop and now doesn't have any picture or sound. When you power it on the vizio display light turns from amber to white but that's it. U have to unplug it to turn it off. I have checked the fuses and they are good. The capacitors look good visually. There are a couple on the power supply board that have a black cover over the top, so I don't know about those. I changed the main board and made no difference. Someone please help!


Replace its power supply regulator board as card basis. ... Vizio Standard (CRT) Televisions

My 42 q96 plasma strarted to lose it's picture after a while. I checked all boards for dry joints. Found I believe the startof caps bulging on power supply. Now I get what I can best describe as I have a picture but imagine in large patches colours diminished as if no power to cells it's dark in patches of the screen but the main thing it's in patches not consistent throughout the whole screen.


... Samsung Flat Panel Televisions

I have a Samsung LN40A530P1FXZA. It will not power up. I get 2blinks followed by short quick blink and then it repeats itself. I have replaced the power supply board and also the main board, and it still will not work. Does anyone have any idea as to what is going on with this tv? I wish I had an error code book for this tv, but I do not. The only thing I have not replaced is the TCon board. Need someone's help.


Try to download the manual on www.retrevo.com to see the error code for sure..Before you decided to replace t-con board please refer to the manual first,,but there is the possibility that t-con was faulty.Hope it helps..don't forget t ... Samsung LN40A530 40 in. LCD TV

When plugged in the power switch keeps turning on and off with no picture or sound. Do I need to replace the power supply board or the main board?


... Samsung LN46A630 LCD TV

I have a sony kdl-52v4100 tv. It had a power surge and now blinks 2 times. I changed the power supply with a known working one and it burnt it up. I changed the power supply again and the bu main boar


... Sony Bravia V-Series KDL-52V4100 LCD TV

Have a vizio vx 42l on the bench. amber light only no power up have my standby 5vdc and my 3.3vdc power button is sending a high pulse to the main mod but i dont get pson to the power supply mod suspect main mod defective but not sure . ps all fuse's are good on power supply mod as well as main mod and back light mod.


Power comes on but no picture or sound already replaced power board ... Vizio 42 in. LCD TV

Hi. I have an LG 47LB9DF-UA LCD TV with a video problem. Originally, I had problem with horizontal lines, accompanied with a lag. After a short time the screen would then get multi-colored vertical lines. If I turned the tv off, then back on, the lines would be gone. If I left it on, the process would start over again. I opened the tv and found two connectors from the power supply board to the main board loose. After removing then reconnecting them several times, the problem cleared up. I l


... LG Flat Panel Televisions

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