Question about Sony BRAVIA KDL-52W4100 52 in. LCD HDTV

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My tv will not turn on

It makes a buzzing noise and then the standby light starts blinking

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Buzzing is a symptom of the power transformer going out. if not repaired it will smoke then at times catch fire. have fixed/replace the transformer.

Posted on May 29, 2010

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My LG 42PQ3000 is making a clicking noise from the large PCB when power is turned on, there is no picture and the stand by light is going on and off


Standby light goin On/Off, means the power supply regulator board is OK. Blinking of the standby light indicates a fault. It might be to the backlight inverter board, or the main board. These blinks of standby light are called blinking codes, from the number of blinks occur at one time switch ON, you can get an idea about the faulty board inside the TV. Count this blinks. If you wish to get more details about these blinking codes, check the site linked here.http://electronicshelponline.blogspot.com/
Pull up previous posts by its left sidebar, or type in the brand name and model number to of your set, to its search box, and press 'Enter' or view it in Mosaic / Timeslide option.

Sep 22, 2013 | LG 42PQ3000 42" HDTV Plasma TV

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My sony wega KDP57WS655 tv wont turn on...makes noise like it is coming on, clicks then turns back off and standby light is flashing


If the red light is blinking in front that sasy lamp. Your lamp needs to be replaced. They cost about $100.00 at your TV Fix It shop. Very easy to replace yourself

Nov 20, 2012 | Sony Grand WEGA KDP-57WS655 57" Rear...

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I have a Sony KD-34XBR960 and the standby light blinks twice and makes a click noise and a bang sounds off in the back of the TV and then it repeats its self , the TV does not turn on .


  1. Two blinks - B+ over current protection (OCP), unit goes to the standby mode then displays the 2 blink fault. Could be a short in the power supply of any of the circuits.

    Visit this site for more details. Type in the site name "Electro-help" either to Google or Yahoo search box [not in the address bar of your browser], and click search. It is an electronic equipments service help site. All details you want are there. Note the position of hyphen in between words in site name, when you type it in. The site will appear as it is in web; subtitled as Service help to electronic home entertainment equipments.

    Pull up older posts. You can get all details.


    Site is listed with Google. You can locate it either at the bottom part of first search page, or at the top of second page.

    Sometimes, one among the advertisements by the side and bottom of each post might help you to get details about the availability of spare parts and other components.

Jun 02, 2012 | Sony FD Trinitron KD-34XBR960 34" TV

1 Answer

Sansung model 56 Inch hpl5663w first had a buzzing sound the tv repair man said it might be a color wheel but the tv played well except for the low buzzing sound . then one night the picture went black and...


Hi Charles,

Sorry for the late reply, I'm offline upon purchasing my service.
You have said that you can hear a low buzzing sound before the unit gone to subsequent shutdown and the lamp blinks green(meaning that the unit try to turn on the lamp for consecutive attempts but not generally mean that the lamp itself is faulty.) and the temp led light come on.

As a matter of fact all the information you have mentioned linked to the symptoms you've encountered right now. A low buzzing sound might be caused by faulty FAN inside the unit that trigger the error code (blinking of the standby/temp led light) and turns off the unit automatically due to thermal protection circuit.
However, the technician might be true also that the buzzing sound came from the faulty color wheel. To confirm it, you have to verify where the buzzing sound came from. Color wheel is in front of the lamp assembly. Faulty color wheel can produce the same symptoms you've encountered right now but most of the time, it shows 3 blinking led light at the front panel (Timer, Lamp, standby/Temp).

I would advice you to open the back cover of your unit, fixed the lamp door safety switch with the tape to make it in closed position( if it is on open position the unit will not power up), and then turn on the unit and observe the fans if will spin or not, and check also where the buzzing sound came from before the unit gone to shutdown.
I've suspected that the fault came from the fan based on the led light flashes. Please let me know what you will discover after following the steps above to verify where the exact fault came from. Also, let me know the exact status of the led light at the front panel, (Timer, Lamp, standby/Temp ), which of them lit solid/blinking, it will help us to narrow the caused of the symptoms.

Jdvillanueva

Oct 14, 2011 | Samsung DLP HL-P5663W 56" TV

2 Answers

After 10 sec. After start up the tv starts to make a large growling sound for about 5 secs. Then repeats every 15 sec. Sounds like if might be a fan. How many fans in this t.v. . Took the back cover off...


there's 3 fans. 1 by the video board. 1 in the middle of the set infront of the heatsink and 1 behind the lamp. make sure all 3 fans are running and put your ears by them to check. if all of them are running the sound might be coming from your colorwheel. If it sounds like a loud whinning/humming or buzzing noise then more then likely its your colorwheel. Let me know what you find and please rate me. Thanks

May 15, 2010 | Samsung HLR5067WX 50" Rear Projection HDTV

2 Answers

My 36' RCA TV JUST QUIT WORKING. TURNED ON POWER


A shorted horizontal output transistor or shorted flyback. If the flyback is shorted replace also its HOT.

Apr 05, 2009 | RCA F36650 36" TV

2 Answers

No Power


It's possible your TV when into protection mode. This happens when a part is burned out inside your TV to prevent further damage.
Try unplugging your TV for 30mins. Then see if the problem still occurs.
If the problem is still there, you may have to take it to a repair shop to diagnose the problem.

Feb 09, 2009 | iLO LCT32HA36 Television

1 Answer

Buzzing/screaching noise when turned on, standby light blinks and then lamp light blinks


It sounds like a bad lamp. Replae the lamp firts, but there is a chance you have a bad lamp driver also.

Oct 21, 2008 | Sony Grand WEGA KF50WE610 50" Rear...

1 Answer

STANDBY LIGHT TURN ON


when turning on the set will go three startup cycles about 2-3 min. then all three leds will blink/ possible causes /lamp/ballast/dmd board check or purchase the dmd board last (costs) also listen for arcing from the ballest at startup and fan noise if you can and color wheel noise also.if you hear the ballast arcing and trying to fire the lamp look at the lamp.

Jun 15, 2008 | Samsung DLP HL-P5663W 56" TV

1 Answer

HL-r6167w wont start up (HELP)


it sound like the color wheel is bad

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