Having problems with your Flat Panel Televisions ?

I have a lg 47 lcd tv. model num. 47LD500. only about a year old when this happened. Was working fine and just shut off by it self. will not do anything at all. no sounds lights nothing. Have checked power cord and all ovious things. Remover back cover and checked fuse and all capacitors look ok. Is there any downloadable test spect. and instructions for the power board. I have a good meeter and pretty good knollage of electronics. any help would be great. Thanks



Answers :

Check power supply

Repair Help & Product Troubleshooting for Flat Panel Televisions
You need a second opinion or clarification ? ask it in the comment box OR you can Ask Your Own Question

Tips for a great answer:

  • Please provide as much detail as possible as this will allow our members to better understand and respond to your Comment
  • If you need clarification, ask it in the comment box
  • It's 100% free, no registration required

Suggested Questions/Answers :

It is recommended you read all this kind of situations

I have a lg 47 lcd tv. model num. 47LD500. only about a year old when this happened. Was working fine and just shut off by it self. will not do anything at all. no sounds lights nothing. Have checked power cord and all ovious things. Remover back cover and checked fuse and all capacitors look ok. Is there any downloadable test spect. and instructions for the power board. I have a good meeter and pretty good knollage of electronics. any help would be great. Thanks


Check power supply ... LG Flat Panel Televisions

I have a WS-65611 that I have replaced the caps on the DM board. Before I did that, the power LED flashed non stop, Now it does the normal 70 seconds but when I attempt to turn it on, it shuts right back off. After attempting a power up I checked the error code I got a short protect error. I then removed the DM again and verified the caps were not shorted to the shield and checked the pico fuse and found everything to be good. Any ideas of where I should start looking??


Did you run the error code operational check? In not unplug the set and plug it back in. Press and hold the DEVICE and MENU buttons for 5 seconds and release. The LED should flash a certain number of times a short pause and another series of blinks. ... Mitsubishi WS-65611 65" Rear Projection Television

I have a sharp lc-42SB45UT flat screen that after a thunderstorm will not turn on any more. Now I am pretty tech savy, and here's what I've done. Checked cable and receptacle and both are good. Taken off back cover and checked fuse, also good. The voltages on the power card seem correct by my multimeter so power is being applied, but the power on led is not lit. Any suggestions?


You are on the right track--follow the voltages--set has a standby power supply--right at or part of main supply---runs 7/24 so likely was damaged.likely you will find a open somewhere between where power AC enters set and the bridge rectifie ... Sharp Flat Panel Televisions

TV was working fine. Shut it off, all power went, no red light or any other sign of power. Will not turn back on, as if no power source. Unplugged for 1 hour, plugged back in again, nothing, uplugged over night, plugged it in, still nothing. Tried other outlets. Checked the safety fuse, it is good. This TV is not over used (2 adults), TV is 2 years old.


Hello,ok you have done almost everything you can do with a no power on Tv problem, if you have the tech background you could try using a volt meter to see if the TVs power supply is getting the power it needs or if there is a lose wire on the p ... Element Electronics FLX3711B 37 in. LCD TV

This unit is practically brand new, has no dust nor dings nor damage on the unit anywhere, not even a scratch, but I haven't been able to get the unit to power on. Power cord is connected. The switch on the unit sounds like the others when pressed and everything looks and smells good inside and out! There are no cracks on the circuit boards, no broken wiring no broken or missing or out of place connectors. The fuse is also intact and appears good, but I haven't used a meter yet to check for


Hi jesseley,\015\012\015\012Do it has a led light when you plug the unit to the outlet, make sure that the outlet is live, what happen when you pressed the power on switch in the front panel?\015\012\015\012Jdvillanueva ... Flat Panel Televisions

Samsung HP-P4271 42 in. HDTV Plasma power problem. When plugged in, won't turn on, just red standby light. Checked fuses (has continuity), capacitors (visual looks good), noticed blackened bulb near fuse in power board... could this be the problem?


Yes,this is the problems,might have bad plasma screen panel itself.Have a tv tech.to check it out.If the plasma screen panel it dead,tv not worth repairing.Plasma screen itself will cost the same as a new tv,if u able to buy it. ... Samsung HP-P4271 42 in. HD-Ready Plasma Television

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

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 Insignia NS-L32Q-10A that will not power on. Now power on light or standby. I have replaced the power supply already. All caps look good and fuses check OK. What next???


Ok, when you plug in the set, does the power light come on? Assuming you ordered a power supply in good working order, you may very well have a faulty main board. The power supply produces standby power that the main board uses to power the standby/p ... Insignia NS-L32Q-10A 32 in. HD-Ready LCD TV

When switched on, the power light flashes on and off on the front of the TV but no picture. We have the back part of the panel off and there are no puffed capacitors. Everything looks good except some goop around some of the capacitors. Is it normal to have goop that looks like its flowing out of the caps? Is it a glue that helps it seat better? I have access to a multi-meter and have the checked the output of some of the connectors. Anything to suggest?


It is not normal to have goo coming from the cap. Usually a cap will pop and you'll have the top or bottom puff out. Sometimes a cap will explode and you'll have a little more of a mess. So if it looks like goo is coming out if it then that is probab ... Samsung PS42B430 42 in. Plasma TV

I have a 37 in element model number is elcp 0371. I woke up to it having no power so I did some investigating and found that the 15w fuse had blown. After replacing the fuse I have no sound or picture. I've checked all of the capacitors and they all look good yet nothing work except the standby light. Please help


... Flat Panel Televisions

Hitachi LCD TV looks like no power but power cord checks good


Hello\015\012Eventhough the fuses and power cord os good, and there is no power light on the panel board, means the power board do not get power to it. Check an other power outlet point first. If it does not help you, soethnig wring with the po ... Flat Panel Televisions

Hitachi LCD TV looks like no power but power cord checks good


... Hitachi Flat Panel Televisions

Screen is dark but the middle looks like a burnt spot. Looks like someone formed dust to look like a small explosion. When power is turned on all that comes on is infrared light. To fix. Power on and off. Checked power source plugging in and out. Changed outlets. Looked in the back of the tv to see if any lights from components inside the tv


From your description the picture tube has gone, and usually it will crack where the filaments light up, once air gets in the vacuum seal is compromised causing particles to fly damaging the delicate phosphor where the picture is g ... Memorex MVDT2002 20" TV

Philips 42model num:pf5331/10, plasma tv, wide screen flat tv, the red light keeps blinking, one long then two short blinks, took back off the tv, pluged in power leed, power goes to power board, then clicks twice and will not start, yes i think its the power board, looked at all capacitors they look good, i have had the tv since 2006 if you can help me, my email is raftxxx@gmail.com thanks terry edwards


Hi raftxxxPlease everyone that comes across my info take a few seconds of your time to rate my solution which you can select at the bottom of my answer Was this solution helpful? YES or NO :)... As i have taken time to answer your questio ... Philips 42PF5421 42 in. LCD Television

Sharp LC-26SB24U Im getting a white screen. I tried testing main fuse and F404 fuse they are good. I'm getting 12v at the fuse both sides, how do I check power to the T-Con board and is there anything in between I should check.


Check all capacitors on the circuit board. ... Sharp LC26SB24U 26 in. LCD TV/DVD Combo

My Vizio plasma vp422 made a loud pop and went off. Now it won't come back on. U can turn on and the vizio display turns from orange to white but nothing else. Also u can see the little green light in the back is burning. I have removed the back and don't see any visible damage such as blown capacitors. Also I checked the 4 little white fuses and their is continuity running through them. I don't really know where to start looking next. Would it be one of the boards? Is there any way of checking


You need to get a service manual (good luck) or begin by testing all the marked voltages out of the power supply board at TURN ON.do any come up and instantly go to zero or very low? That is a clue where you would have to follow up. ... Vizio Standard (CRT) Televisions

Samsung TV Model LA40A650A1M back light intermittently strobeing and sometimes cuts out completely, powering TV off via remote and back on temporarily resolves issue, but returns at various times, have removed power supply board to check capacitors - look OK none appear to be leaking. Power supply board details Hansol LCD, Rev 1.3, Manf date 11 July 08, Model SIP 408A BN44-001947A I note in some posts for similar Samsung P/S boards it has been suggested replacing specific capacitors - any su


You can't see if a cap is good or bad jus looking at them they have to be measured>They loose their capacitance because they dry overtime.I do sugest that you replace you power supply module or replace all caps.Possibily you may have a broken ... Samsung Flat Panel Televisions

I HAVE A AKAI PT46DL10 AND THERE IS NO POWER i GOT ONE RESPOND THAT IT MIGHT BE THE FUSE. i HAVE TAKEN THE TV BACK OFF AND LOOK ON THE POWER SUPPLY BOARD CANT FIND THE FUSE


... Akai PT46DL10 46" HDTV-Ready Television

Screen comes on for 20 to 30 seconds then goes black. the power light is blue (on). when i hold the power button on tv it comes on again then goes off after 20 to 30 seconds. i have tried all the differant inputs, except for the pc input and i get the same results. i opened up the back of the set to see if it could be a bad cap but everything looks good,no burnt smell, nothing melted or poped, could this be a bad input board? This tv is not used much (less than 1000 hrs) it is clean and looks ju


... RCA 32la30rq 32 Tv Black 720p Lcd - - RCA

Hello. My tv will not turn on. I metered the power circuit as far as I could, and it looks ok. The fuse on the control board is good. The power switch meters good. When the tv failed I heard a small popping sound, but did not smell any smoke from a damaged component. I cannot tell if the problem is with the control board, or with the picture tube. Thanks


It sounds that the power supply regulator section or main board has the fault. Check it with the help of schematics. If you are not handy, seek any technician's support. ... Emerson EWF2006 TV

LG 42LC7D-UK TV NO VIDEO BACK LIGHTS ARE LIT VERY VERY FAINT IMAGE ON SCREEN POWERS UP NORMAL AND SOUND IS OK AFTER FURTHER CHECKING THE 3.4V LINE IS DOWN TO 1.9V WHEN SET IS ON AND I CHECKED ALL CAPS IN POWER SUPPLY NONE VENTED AND ESR IS GOOD


24VDC is feeding the backlight inverter? BL_ON signal is ok? The 3.4vdc is at what board?\012One of these service manual may match your chassis:\012 ... Flat Panel Televisions

I have the hitachi 42hdt20m, will not turn on at all. No led on tv, av center works fine just no power to tv. Could it be the power board? capaciters? Any other suggestions? Everything looks good, no fried caps and fuse is still good. Thx.


There are lots of other things that can cause the LED to not light up. Like if there is no standby voltage. This can happen due to a short in the 5V standby voltage line. The easiest way to fix this would be to replace the power supply board. I can ... Hitachi 42HDT20 42 in. Plasma Television

LG 42LC7D-UK TV NO VIDEO BACK LIGHTS ARE LIT VERY VERY FAINT IMAGE ON SCREEN POWERS UP NORMAL AND SOUND IS OK AFTER FURTHER CHECKING THE 3.4V LINE IS DOWN TO 1.9V WHEN SET IS ON AND I CHECKED ALL CAPS IN POWER SUPPLY NONE VENTED AND ESR IS GOOD


... LG Flat Panel Televisions

Doesn't power up. Relay clicks several times, several seconds apart. After third click, power LED blinks three times. The OPC LED blinks once when the power LED blinks the first time. LED blinking pattern repeats every couple of seconds. Opened up TV to check capacitors. All look good. Purchased service manual, but there weren't troubleshooting steps for the power board. Any suggestions as to which board should be replaced first?


First of all you should weight the cost benefit of repairing the set versus purchasing a new one.\015\012\015\012Depending on the size and model of tv, it may be more prudent to simply cut your losses and buy a new tv rather than spend mo ... Sharp Flat Panel Televisions

A detailed question is important to get you a relevant answers

  • Start your question with What, Why, How, When, etc. and end with a "?"
  • Be clear and specific
all rights reserved to the respective owners || fullblownbass.com || Terms of Use || Contact || Privacy Policy
Load time: 0.1173 seconds