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.
I could be the bulb, but I would put money on the power supply being faulty. It is a common issue with the Samsung plasma's.
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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
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 tv has audio but no image. Upon opening I have noticed there's a capacitor (d153) on the power board which is surrounded in brown residue (appears to be blown). There are also 3 empty connectors on various boards, P1, P101 and P806 are all empty. P806 appears to be a test point, but P1 and P101 look like they should be connected to something. The tv turns on and stays on everytime so I'm not entirely sure there's something wrong with the power board, but the (blown?) capacitor is worrying.
LG 50PX4D 50 in. Plasma Television
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
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
Samsung dlp hls4666wx TV. After a power surge, my TV shuts off after about 4 minutes. The stand by, TV, timer lights flash...manual says it's the bulb or fan. Only, I bought a new bulb, and noticed both fans are working. Still does it. It makes a small pop them hiss or buzz sound when it offers the bulb down. The power supply and ballast look ok (circuit boards). Perfect picture and sound before shutting down. I've heard there are 3 fans but only see two. Could it be another fan I don't see? Or
I have a LT37HVS Olevia flat-screen that has a similar problem to one of the posts. I had the same blue standby type light on the front that stays lit, but turning it on just makes this light blink, and no display. I did as the posts here sugested, peeled it apart and manually inspected all of the capacitors. To my dismay I haven't seen one yet that looks bloated or leaky. I have inspected the main power supply board, both display boards and the main board. There were a few capacitors that
If turning it on makes the light blink then its a clear case of open circuit.. Honestly there are lots of components like diodes, fuses, transistors etc., and either of them if shorted create an open circuit. I do not think this is a capacitor proble ...
Olevia LT37HVS 37 in. LCD HDTV
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
TV has sound but no picture for about 20 minutes then the picture pops on and is good. The capacitors are all good looking. I was told it was the control board or the power supply? Is the board that has all the caps on it?
The capacitors all looking good on which board? You need to find out when you do not have picture, are you still geting the backlights on, this is important to narrow down the problem. Please read my guides to understand what it takes for the LCD fla ...
Samsung LN26A330J LCD TV
LN S4051 TV does not power on. Just makes a clicking noise. A similar symptom surfaced about 7 months ago, but replacing the capacitors on the power board resolved it. The problem has returned, but now all the capacitors show no visual cues as to being faulty.
Then your going to have to check them with a multi meter that can handle them. Find the bad one and replace. ...
Samsung LN-S4051D 40 in. LCD Television
Pioneer Elite PRO-520HD While watching program, TV pops, then switches off... into Standby Mode. I can unplug, wait a while, then plug in, power up (standby)... then turn to "on". Sometimes the TV will then come back on. After a short time it trips off again.
Some investigating revealed that "power down" LED illuminates when trips off.
Visual inspection of capacitors... all look normal. No indication of them overheating (no bulging, no leaking).
Is the CB Board with the power down LED th
Hello,\015\012\015\012This issue is related to a power problem in as much as the TV turns off on it's own. The problem is actually a power supply board problem. one of it's component is defective. I would suggest you replace the whole power sup ...
Pioneer PRO-520HD 53" Rear Projection Television
Vizio VT470M no picture, no sound, no backlight. Power supply board looks good all voltages appear correct (24V, 5V, and 3.7V) and no "bulged" capacitors . When I unplug unit for two hours, the screen comes on normally backlight comes back up and picture is normal, but changing the channel causes it to go dead again. Bringing up menu with remote is really sluggish and when attempting factory reset, it goes black. Vizio light on the front of the TV comes on and off when pressing power button,
Im having similar problem and with my limited knowledge of lcd tvs and the voltages ALL being good except the pwr on or sw on voltage from the main board to the power supply which tells it to switch everything on Im guessing that something is going w ...
Vizio VT470M 47 in. TV
No power I have a LG 50PG20 Plasma. It does not have any power. I changed 5 capacitors that were bulging on the power supply board 10v and 50v. I tried to power it on with no results. I looked at all the capacitors on the other boards and they seem to be fine. Is there anything else I can look for that can solve this issue. Thanks
When the caps got real bad they may have taken another part on the power board---also see if any of the foil traces on the bottom of the board were damaged by the caps---some will actually leak a material that can eat the board foil off.Short ...
LG Flat Panel Televisions
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
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
Samsung ln40a530 Hello, I repaired the power supply on that TV. I changed four capacitor 10v 1000UF and 25v 1000UF and a small chip on the pcb QM806 (4894B: SI4894BDY equivalent) Now I have a good read on all output.
Thank you for the help found here!
But now I found a ground on the main board. 5volt is on the ground(short). I unsoldered some chip without result, the 5v is still on the ground.
Could someone tell me what the problem might be?
HelloCheck the retifier diode for 5VDC for short. If it is OK, replace the regualtor IC [5VDC], if used. ...
Samsung LN40A530 40 in. LCD TV
When switched on the sound is OK, but on the screen are seen only coloured vertical lines not very bright. Found blown capacitor 2200uF/10v from power supply board +5.4v. Changed it ,but nothing. The inverter is OK. After disconecting CN503 and turning on the TV the screen is dark,the bach lights are on and no vertical lines are seen. This problem ocured when the TV was working and the picture was good.
Samsung LE27S73 27 in. HDTV-Ready LCD TV
I have a panasonic th-42pz700u. It won't power on the led blinks 6 times. Is there a way to narrow down which board is faulty? All the capacitors look good.
Visit the site named 'Electro-help' for more\012details. Check this ...
Panasonic 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
I have hitachi t.v. model p50s601 when i turn it on the picture appeares about 1 second imeddietly turns off when it turns off no audio and no picture. already changed the capacitors on the power board c553-c552 = to 3300uf to 100 volts. checked xbus/xsus apperantly no problem. on the power board there is a voltage of vs=88.3v appeares in seconds then imediatly goes to 0. my question is what else can i check? or what could be the problem? thank you for your assistence.
The main rail voltage is not building up and so there is a possibility of a high drain on the output sections. The +B voltage seems to come up and then flatter off as there is a negative feedback to the processor to cut off ...
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
Hitachi 55HDT52 tv has no picture or sound. I have replaced power supply board, x sustain board, both didital boards, logic board, and incoming power filter board. Snot chips look good. I have green flashing LED in front of tv.
Hitachi 55HDT52 Plasma Television
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
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