Question about Sony KP-51WS500 51" Rear Projection Television

1 Answer

Flashing red light

TV stop working 2 months ago. Bought TV Dec 03. All I get is red flashing light. I think it flash slow 7 or 8 time and then flash fast 7 or 8 time. I need some advice on how to fix it. Thanks

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.


    An expert whose answer got voted for 500 times.

  • Master
  • 3,130 Answers
Re: Flashing red light

Joechillin, how much TV repair experience do you have and do you own a mutimeter as well as an osilliscope? Ok first thing your going to need to do is to get a schemtic diagram. Find out with the scope, if the horizontal drive pulse is there when you turn on the set. If it is not then go back to the SMPS and check that. If it is, check the drive all the way up to the horizontal output transistor. If it is good up to there, and still no sweep power supply? Your going to most likly need to replace the flyback transformer and the horizontal output transistor and go from there. If you are there with this, great. But really man if you have no TV repair experience, we cannot teach you how to, as there are alot of factors involved. There is also alot of High Voltage inside these sets when the plug is even out of the wall. Also everything inside these sets is mounted or soldered on a printed circuit board. This set is a solid state TV and there are NO user replaceable parts inside. My friend, I would Highly recommend that you call in a trained service person to assist you with this repair. Good Luck

Posted on Oct 08, 2006

Add Your Answer

0 characters

Uploading: 0%


Complete. Click "Add" to insert your video. Add


3 Points

Related Questions:

1 Answer

Hello. My Panasonic PT-50LC13 is not turn on. First flashing green light for one minute on the power button then starts to blink red and at the same time it starts blinking red LED lights every five...

Check ur tv fan,if ur cooling fan are runnig,before all these LED lights are flashing.If not that ur tv problems.All these LED lights are flashing the tv making alots of clinking noises too like it trying turn itself on?Yes,than the tv board that called the Ballast board it is dead too,must be replace also.This tv Ballast board only job are to help to ignite the tv projection lamp only and keeping it on and running.

Aug 29, 2011 | Panasonic PT-50LC13 50" Rear Projection...

2 Answers

When you turn of the TV the POWER indicator flashes green for several minutes. The TV never comes on. After the several minutes of the POWER indicator flashing green, it stops, I hear a click and the...

A continuous flashing red light with the word LAMP on it would definitely mean you're going to need to spend a few bucks on a new lamp....or for a few more, upgrade to a TV from this century that doesn't require lamp changes :)

May 11, 2011 | Panasonic PT-52LCX66 Projection Television

1 Answer

I have a SONY KF-WE50 rear projection tv, a few weeks ago it started to turn the pic and sound off while the green light was flashing around 30 times. After the light finished flashing both the picture and...

the green is the reboot process and is normal.
the red light is an error code indicator.
count the blinks of the red cant be 30 times (I think)
it will blink a sequence, pause, then do it again for a total of three times.
count carefully, it gives you three chances to catch the number it is blinking.

Apr 13, 2011 | Sony Projection Televisions

2 Answers

No picture, siren type noise as restarting

My Toshiba dlp 62hm116 was used for 3 months then stored for 2 years, I turned it on yesterday and it makes a loud grinding noise which I think is probably from the exhaust fan area and the picture is black except white at both vertical sides. It worked fine the last time I used it 2 years ago. Any ideas?

Jan 13, 2010 | Toshiba 62HM95 62" DLP HDTV

3 Answers

Toshiba 57H81 Flashing Red Power Light, Blown Fused F850+F852

Solved by resoldering some solder joints!!!!!!!
Toshiba Model 57H81 Rear Projection TV - Purchased 11-09-2001

Problem: Toshiba 57H81 Flashing Red Power Light, No Picture/Sound, Blown Fuses F850 + F852

Symptoms January, 2009:

  • Upon turning on set I got flashing red power light and nothing else.
  • Removing plug for one minute and plugging in results in:
    • Audible click, steady red power light for 2 seconds then slow flashing red light
    • Pushing power button results in steady red for about 2 seconds then slow flashing red light, no other set activity
  • Removing power cord for several hours and plugging back in made no change
    • Audible click, steady red for about 2 seconds then slow flashing red light
  • Possible related note: Over past several months occasionally the entire screen would flicker momentarily and at other times be problem free for weeks.
  • Fuses F850 and F852 found blown

Repairs Made:
  • PD0074 DEF/CON Power Board
    • There are two main power supply capacitors in this set. They are C-809 and C-810. One their negative lead on the printed circuit board re-soldered leads and nearby contacts. I’m told that because the factory left out a printed circuit board eyelet, the connection will come loose over time. When I called Toshiba customer service they said there was a known solder joint problem causing blinking red light.
    • Replaced blown fuses F850 and F852.
      • I actually installed a fuse panel on the inside of the cabinet and routed the fuse connections here instead of ordering the special fuses and replacing them on the circuit board.
      • Had to use a 5 Amp SLO-BLOW for F850. Fast blow does not survive power up. Get the red blinking light.
      • Used a fast blow 2 Amp for F852.
  • PD0073 SIGNAL Board
    • Re-soldered Q751 + Q752 STK392-110 Convergence Amps
    • Re-soldered adjacent pads that looks suspicious

Total Cost to Repair about $10
  • Twelve hours of my time over three days to research issue, disassemble set, make repairs, add fuse panel.
  • Already owned Service Manual and Circuit diagrams from a different 2004 repair.
  • Less than ten dollars at Radio Shack for fuses and fuse panel. Already had wires, etc.
  • Some solder. Already owned de-soldering tools, etc.
  • Visited both local authorized Toshiba factory service repair facilities. One said repair would have to include replacing Q751 + Q752 STK392-110 Convergence Amps with ST392-180, and realigning set for a total of $500+ and it would be more if they had to order a power board. NO THANK YOU! Other shop said $65 for site visit and $30 to make an estimate that could be applied to repair.

Jan 04, 2009 | Toshiba 57H81 57" Rear Projection...

5 Answers

TV Won't Power on Green Flashing Timer Light

The green power light is continually flashing and the tv will not turn on. I hit the reset button and nothing happened. I have exhausted all other troubleshooting methods. Please help, what should I do?

Feb 08, 2008 | Mitsubishi WS-55859 55" Rear Projection...

2 Answers

Sony KP-57HW40 Error Codes 6 & 8



Nov 10, 2007 | Sony KP-57WS500 57" Rear Projection...

1 Answer

Wont power on

Face it....your big screen is a Flasher. but read back,,, I think you asked this before...go back about 1 or 2 months and see my solution to this exact problem. but bottom need a tech. good luck

Sep 01, 2007 | Sony Grand WEGA KDF-55XS955 55" Rear...

Not finding what you are looking for?
Sony KP-51WS500 51" Rear Projection Television Logo

55 people viewed this question

Ask a Question

Usually answered in minutes!

Top Sony Projection Televisions Experts

Steve Sweetleaf
Steve Sweetleaf

Level 3 Expert

1128 Answers


Level 2 Expert

103 Answers

Jason Harris
Jason Harris

Level 2 Expert

256 Answers

Are you a Sony Projection Television Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides