Having problems with your Flat Panel Televisions ?

Whenever i plug my sony bravia KLV-32U300A, it click twice and doesn't turn on,power sign goes completely off. I have to unplug from the power source, wait 5 mins and try again, it rarely turns on, but does so if you try it after 4/5 hrs. Once the tv on it works fine. how can i rectify this problem? is it from the power board problem or the main system board problem? Pls help me thank you.



Answers :

Hi,
\012\012

This is an indication of out-of-regulation in the power supply section. The very\012common caused of this fault is the leaky\012electrolytic capacitor in\012that section. It will drop the supply from normal voltage and\012will disable the unit.It needs a little warm-up to make itself stable but the\012symptom will get worst, times will come that it will not power up at all. Sometimes it has a bulged/dome at the top but not all, it is better\012that you have a capacitor\012checker/tester to determine\012its condition. Your unit will back to normal again if the leaky capacitor is\012isolated.
\012\012

If you don't have necessary tools\012and test instruments, and can't do the job yourself, I would advice you to\012look for a professional to troubleshoot the problem. Don't\012attempt to work in the power supply if you don't know the safety precaution of handling it, there some stored\012electricity enough to hurt you with a little mistake only.
\012\012

Also check if your unit is under warranty /extended warranty,\012avail it because the manufacturer of your unit will fix it for free. Don't open\012the back panel, this will void the warranty.
\012\012

Hope I helped you.
\012\012

Have a nice day!
\012\012

Thanks for using Fixya.

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

Whenever i plug my sony bravia KLV-32U300A, it click twice and doesn't turn on,power sign goes completely off. I have to unplug from the power source, wait 5 mins and try again, it rarely turns on, but does so if you try it after 4/5 hrs. Once the tv on it works fine. how can i rectify this problem? is it from the power board problem or the main system board problem? Pls help me thank you.


Hi,\012\012This is an indication of out-of-regulation in the power supply section. The very\012common caused of this fault is the leaky\012electrolytic capacitor ... Sony Bravia KLV-32U300A 32 in. HD-Ready LCD TV

Sony Bravia LCD KLV-32U300A Symptoms: ~ powering up problem, whenever try to turn on click twice and power goes completely off no standby indicator as well. i have to discharge the stored current in the caps to try the tv on but still the sounds click twice and goes.it rarely turns on after 4/5 hrs. In the SMPS board EADP-170AF A ~ board-G, CN202: "4VSB" pins 3, 7 & 8 have 4Vdc ~ other power outputs: CN201 6Vdc, 15Vdc, 30Vdc, "PWR_PANEL pin 7&8 ~ CN203- 24Vdc IN CN20


I know its a 32 inch TVand its probably about 2 years old, give or take. If you got a warranty on it, I suggest calling whoever you got it from (BestBuy,Amazon, etc) and seeing what they can do for you to get it fixed for free. Otherwise call Sony ab ... Sony Bravia KLV-32U300A 32 in. HD-Ready LCD TV

Sony Bravia LCD KLV-32U300A Symptoms: ~ powering up problem, whenever try to turn on click twice and power goes completely off no standby indicator as well. i have to discharge the stored current in the caps to try the tv on but still the sounds click twice and goes.it rarely turns on after 4/5 hrs. In the SMPS board EADP-170AF A ~ board-G, CN202: "4VSB" pins 3, 7 & 8 have 4Vdc ~ other power outputs: CN201 6Vdc, 15Vdc, 30Vdc, "PWR_PANEL pin 7&8 ~ CN203- 24Vdc IN CN202 pin 3,7&8 4


... Combination Televisions

Dynex 47 My Dynex TV stopped powering on. I was told it could be the power supply board cause the indicator light was not on red or turning green when you tried to turn the TV on. I installed a new power supply board, and i'm still not getting any picture or light indicator. What else could the problem be?


This is exactly why I tell people that when your set isn't working, you have to have it properly diagnosed. Chances are you have a defective main board. The power indication is an indication that you have standby power. However, the power indicator i ... Flat Panel Televisions

I cleaned out my Samsung hl-s6187w and put everything back together and now it doesn't turn on. It makes a beeping noise like fast morse code and keeps cycling the power trying to turn on. The ballast gets about 270v from the power board, but the lamp never comes on. Could it be the ballast or the dmd board causing the problem? I can hear the color wheel spool up, but the beeping isn't consistent to be the color wheel.


Tv projection lamp inside the tv less than 2 years or so?Yes than the tv projection Lamp is good.You have this tv like 3 or 4 years already?The tv colors wheel even have been replace at leat once?No the tv probally require replacing the colors wheel ... Samsung HL-S6187W 61 in. HDTV

Acoustic solutions lcd32761hdf When I try turn on my TV - flashing blue power light and TV not working. Where is a problem? Main board or power board? Thanks.


... Flat Panel Televisions

I have a Phillips 32PFL5322D/37 tv that is about 2 1/2 years old. Recently the TV stopped working. All I see is 8 red blinking lights when I try to power-up. After reading multiple threads and suggestions I replaced the Power Supply Unit but still no change in the 8 red blinking lights. I have a power aux board coming in the mail and I plan to install. I am out of ideas here. Any other possibilities? It seems everyone is having the same problem with this TV. There must be a reason.


... Philips 37PF7320A 37 in. HD-Ready LCD 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

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

Hdmi blackouts My 2 HDMI inputs (Xbox 360 & Bluray) both occasionally drop signal. Problem started rarely, then became more frequent. Is it possible that there is a loose wire from the HDMI board inside the tv? I've tried both inputs and both devices, as well as different wires. Nothing has any lasting impact. Any ideas?


... Flat Panel Televisions

Jvc lt-32dg20j i tried turning on my television this morning and a blue blinking light came on underneath the jvc badge and continued to do so. Is there any more methods to addressing this problem than just replacing the whole power board?


... JVC Flat Panel Televisions

My Sony KDL-46S2000 will not turn-on, the stand-by LED flashes 2 or 3 times then a pause then flashes again. I ordered a new power supply board (part number A1189958A) and installed it. This did not do any good, the same problem still remains. What else should I try?


... Sony BRAVIA KDL-46S2000 46 in. LCD HDTV

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

My JVC LT-26X575 will not power on. Opened it up checked all connections and got it to power on. Screwed it closed tried again and again no power. Replaced power board tested with tv still open. First try powered right up. Each successive try took longer to power up. After about 4 tries would not turn on at all. Suggestions please.


... JVC LT-26X575 26 in. LCD HDTV

Emerson lc32oem2 power light blinks red. Just replaced power board. Still not working. What could be the problem.


... Emerson Lc32oem2

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

Video boards Had to replace the power board. Television now powers on, but there is ghosting of images and distorted color. I have tried to adjust the picture settings to no avail. There was never an issue with any imgae burn or color issues prior to replacing the power board. Before I replace the video board, is there anything else that may be causing this issue?


Have you checked it using a different input device such as a DVD player? Have you ensured that the replacement board is exactly as per the original and the voltages at connectors are in same position and rating? If there is a voltage drop in any o ... Panasonic VIERA TH-42PX60U 42 in. Plasma HDTV

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

I need detailed schematics with wire codes and values for diagnosing problems I am having with a Westinghouse SK-26h520s. The original problem was a dead machine, no indicator light so no power, replaced power supply now have indicator light but no sound or backlight, figured bad main board. Replaced board, made no difference. Any information, help or schematics with points and corresponding values to test with a volt ohm meter would be greatly appreciated


... Westinghouse SK-26H520S 26 in. LCD HDTV

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

I got a Sony Bravia KDL-40WL135. Blank screen. There's two LED lights: red standby and green power light. When I turn on the TV, green led comes on, then after about 30 seconds red led blinks once, then green resumes. The green led stays solid. I think that's a SONY error code, I tried to look it up but can't find anything useful. I have replaced the power supply, AU board, backlight inverter, logical board, and the second power supply board. Any suggestions? I haven't checked the t-con bo


Http://www.smpcshop.com/KDL-40WL135-KDL-46WL135-p-8895.html\015\012\015\012\015\012\015\012Above is a link for a service manual.\015\012 ... Flat Panel Televisions

Need to know how to test power circuit board on a Vizio VX32L. Like what points I can check with a multimeter. TV has power but does not turn on. Trying to find exactly where on the circuit board I'm losing power. Pictures explaining where on board greatly appreciated.


... Vizio VW32L 32 in. LCD HDTV

When power supply to TV exceeds 224V the TV switch off. It then tries to switch "on" again and will do so until the power supply to TV is lower than 224V. I ran a AC DC regulater to keep power output to TV as close to 220V. Then TV plays perfect. Aventually I unplug TV and go to bed. I have tried UPS's as well. Same problem. I think power supply unit in TV is damaged due to power surges. I replaced this 2 year old TV with a new one. Costly excercise. I still belive this TV can be fixed.


If a power supply is what you want, they are available all over the world, just use the internet like you did tonight and use Google, type in your tv make and model and power supply and you will find them. Parts are really hard to come by now the Qua ... Flat Panel Televisions

Power problem The TV doesn't power on. Suddenly i was watching tv and suddenly the tv was turning off, then i tried turning on (with the power button), and the image appeared one second, and was turning off inmediatly Now, when I push the power button, the tv try to power on, an image appear, and right away, the tv turning off.


1) test the outlet wall, plug a desk lamp and see if turn ON, if does the circuit is o.k and the contrary, reset the c.breaker2) test the power cord for defective and repair or replace3) test the main switch for short or open and replace4 ... Standard (CRT) Televisions

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

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: 0.1574 seconds