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I have a Hitachi 50 inch plasma, turns itself off by itself after I trun it on. I've heard it could be the power board, a common problem, but on removing the back cover and looking at the capacito



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I have a Hitachi 50 inch plasma, turns itself off by itself after I trun it on. I've heard it could be the power board, a common problem, but on removing the back cover and looking at the capacito


... Hitachi P50H401 50 in. Plasma HDTV

My samsung 46 inch LCD also has the problem of no picture, but clear sound. I read all the posts about capacitor problems, and have gone so far as to take the back off and the power supply cover to look at the capacitors. But they all look flat...I don't see any of the bulging noted in other posts. When I first power up the TV, it looks like it is lighting up, but after maybe 1/2 second of buzzing, the dim light goes off completely. Looking at it from the back with the cover off, you can see the


Samsung has had a lot of capacitor issues with some models, even if the capacitors look good they can still be open and need to be tested with special equipment to get to the root of the problem. They had so man ... Samsung LN-T4665F 46 in. LCD Television

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

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

Samsung PN50B450B1DXZA will not power up. When I try to power it on, it makes a clicking sound and then nothing for 10-15 seconds and another clicking sound. The Red LED on the front flashes when it clicks but nothing ever appears on the screen. I removed the back of the TV and inspected Capacitors but do not see any that look to be bulging. When I try to power it on with the back off, I see a green light quickly flash on a logic board just below the power supply board. Are these clues helpful


... Samsung HP-R4262 42 in. Plasma Television

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

50pfp5332d got this tv not working. found no power when conected and decided to remove back cover. found blown PCB fuse and replaced it,turn the tv on and the picture came on for 10 seconds and when out but tv was still on since the logic board led was on,also noticed led on PCB started blinking. pull power cord off and then plug back in turn power button on and got picture for 10 second PCB relay clicked picture died and led on PCB started blinking again. what do you think?bad PCB or ba


Hello\015\012The power regulator PCB has some fault it it. It does not outs proper regulated voltages needed to the other PCBs in your TV. Normally Plasma TV power regulator PCBs are very difficult to repair, and PCB as whole should be replac ... Philips 50PFP5332D 50 in. Plasma Television

M220va wont turn on when plugged in and has a small white led light on the bottom right of the front panel that slowly flashes on and off. i've heard this light will come on when there is any problem with any of the boards, kind of like a safty shut off indicator. this makes it hard to diagnose since you cant look at any of the symptomes. sooo... i was wondering if there were any "common problems" with this model that might most likely need to be replaced (power board? main board?) fuse se


... Vizio M220VA 22 in. LCD HDTV

My 32lg20 television will not power up. No power indicator light comes on at all. I removed the back cover and checked the fuse on the power supply board, but it is OK. What should I do next?


... LG Flat Panel Televisions

Read that this is a common problem...I have a VS-60111....when i turn it on it clicks then goes right back off....I used to manage a service department for a place called Conns. Sell appliance and electronics....well one of the techs i used to manage came , looked inside then immediately said convergenc ic's. well i actually read upon it too the main board out was gonna change them but got scared off the saudering part...long story short, rought board to him he saudered two new ic's i just


You cannot be sure of the problem unless you try the error code operational check. Here are the instructions for doing itTurn off the tv from the remote and unplug it. Plug it back in . Press and hold the menu and Device/Input buttons on the fr ... Mitsubishi VS-60111 60" Rear Projection Television

I have some problem with Power board from Sewing machine EX-660. The one of electrical component blown and I don?t know to identify it. On the board I found the sign it?s look like 2 diodes face to face with parallel line on back (maybe varistor) but that kind varistor I don?t know. Please help.


... 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 Sanyo 42 inch Mode Number: DP42647. I bought it 2.5 years ago, and suddenly, the video is out. The sound is ok, as well as the "power" green LED. By looking at other forums, it seems every Sanyo TV purchased in 2008-2009 has the same problem. Some owners report having their units taken to a technician, and their response is the "main" board failed. The main board in my TV is: N4VE MAN. I can remove it, and buy it online. Should I be worried about having more failed components?.


... Sanyo 42 in. LCD TV

Problem with TH-C50FD18:Gives off 2 blinks I replaced the D-board and the A-board to no avail. The power trips the moment the 15Volts ON occurs to send 15volt power to SS, D-board, A-board and SC-board. I found no short on this 15Volts line that is switched by the MC701 Power MICOM Processor. It looks like a 15Volt error is detected, nonetheless.That's why it always reverts to standby mode. Could this be a 15volts power regulation problem? (I suspected the affected unit could be the standby pow


... Panasonic VIERA TH-C50FD18 50 in. Plasma HDTV

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

I have a zenith rear projection tv model r56w36. It won't turn on. When I remove the back panel and turn it on, I see a bright flash coming from the middle bulb on the right side of it where it looks like a wire is connected and then I hear a click from the power board. All the conductors appear to be fine. No bulging or anything but it won't stay on. Please help


... Projection Televisions

I HAVE A SAMSUNG PLASMA TV MODEL NO HP P5031. THE TV HAS DEAD PIXELS AND BLACKED OUT SECTIONS ON THE SCREEN WHICH SEEM TO BE RANDOM, NEVER IN ONE SPOT. I HAVE REMOVED THE BACK OF THE TV LOOKING FOR LOOSE CONNECTIONS AND DONT SEEM TO SEE ANY.. ALSO THERE IS ALOT OF DUST ON THE CIRCUIT BOARDS. COULD THAT BE A PROBLEM? DATE OF MANUFACTUER WAS JUNE OF 2004, IT IS AN OLDER MODEL. IS IT EVEN WORTH IT TO REPAIR. THANK YOU


... Samsung HP-P5031 50 in. HDTV-Ready Plasma Television

I have a Maxent MX-58HPT51 model P58H10NJA. I bought it in 2007, have been using it for years. I recently moved houses and brought the tv with me. When I plugged it into power at my new house, the LED did not light up and the TV will not turn on. I know the outlet is hot, tried different plugs. I currently have the back cover off and none of the boards or transformers look like they're fried. I'm stumped, please help. Thank you, Matt


Try resoldering the parts at the power supply section and check also connectors make sure that there are no loose connectors.press down fuses make sure it have contact on the board If you have a multimeter measure the continuity of the power cord rep ... Flat Panel Televisions

A slight topple, then ON power, just heard clicking sound. Remove back cover, can see spark in middle portion of TUBE. The copper coiling section. How to fix my problem.. Thank you very much.


In the power supply section, see the capacitors? The "barrells" usually black, grey, or blue. Look at the top of them, if they are bulging up, they are bad. Replace all of them in that section. (6)?? ... Toshiba Flat Panel Televisions

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 [email protected] 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

My slyvania LC320sl1 powering on and then shutting right back off. I just replaced the power button board and the power standby board. It worked good for a day and now back to the same problem. How do I fix it?


... Sylvania Flat Panel Televisions

X322BV-HD*WXC100 Problem: TV will not power up. Red indicator light is evident and turns blue when you use the power button on the remote or the power button on the TV. However nothing else happens. The screen does not light up nor can you turn it back off with the remote or TV button. I tried on several occasions to remove the power cord and plug it back in again with no success. The red indicator light comes back on and turns blue when I use the power button on the remote or the power button


... Flat Panel Televisions

X322BV-HD*WXC100 Problem: TV will not power up. Red indicator light is evident and turns blue when you use the power button on the remote or the power button on the TV. However nothing else happens. The screen does not light up nor can you turn it back off with the remote or TV button. I tried on several occasions to remove the power cord and plug it back in again with no success. The red indicator light comes back on and turns blue when I use the power button on the remote or the power button


Warranty is usually 1 year parts and labor. Contact mfc for warranty service. likely main board. ... Flat Panel Televisions

Hello, I have a LCD TV. MITSUBISHI Mod. #LT-40133, the right side of the tv. when the tv get hot (after 30 or 40 minutes) show vertical lines that cover almost all the right side. We replaced the Logic board, but the problem persist. Additional thing: if you hit the back cover in the right side, the tv get fix for some minutes (5 or 10),after that, the problem come back.


Your logic board isn't at fault. You need to replace the backlight inverter. It sounds like it is overheating...then causing your LCD panel to over heat...causing the line problems!The backlight inverter is located in th ... Flat Panel Televisions

My problems with samsung pn50b450 is it clicking on the power board and will not power on.The capitors all look good.but i changed them any way.I still did not work so i ordered another board and it is still doing the same thing..What could the problem be?


... Samsung PN50B450 50 in. Plasma TV

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