Question about Sony KP-51HW40 51" Rear Projection Television

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Red flash, then tv turns off

We are having this red flash problem as described, then the tv shuts off.

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Re: red flash, then tv turns off

Red CRT defective. I have one brand new if you want to fix it.

Posted on Dec 06, 2007

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I have a 55" sony

According to the manual (you can see it here) page 122 that describes 3 red flashing lights:

"The lamp cover is not attached securely. When you secure the lamp cover, the POWER / STANDBY light flashes in red and the LCD projection TV enters the standby mode (see page22)"

Page 22 says:

"... if the POWER / STANDBY light flashes continuously, this may indicate the display unit needs servicing..."

Most DLP displays make use of a "color wheel". These small motors spin at many thousands of RPM. They often begin to make scratching sounds when they are beginning to fail. Some manufacturers make it difficult to change yourself - and others make it pretty easy.

I hope this was at least a good starting point for you & good luck. Please rate my reply. Thank you.

Apr 04, 2011 | Sony Grand WEGA KDF-55XS955 55" Rear...

1 Answer

I have a 60' sony wega r60xbr1 i just had a new light engine installed last night the tv was never turned on afterwards . I turned it on the screen come on shut off imediatly the red led flashes 4 times...

LOOK IF YOURS IS A SONY I had a sony grand wega 60 inch with the same problem as many tv turns on shuts off the red led FLASHED 4 TIMES. it is a heating issue if one of the three fans inside are not turning when the tv is on even on the first few seconds of turning it on the tv will send a fault code of four flashes . Then the tv shuts off so it wont burn its self up or damage the optical block. all with this same problem of 4 flashes take a flashlite and make sure your fans are turning if not that is your 4 flash problem. I hope this helps someone and if it does i have done my job .

Dec 29, 2009 | Sony Grand WEGA KDF-60XBR950 60" Rear...

3 Answers

Panasonic pt47wx52cf tv shut off and wont turn

Please count red light flashes and let me know. There would be long pause between flashes so count pause to pause. It is an error code of TV problem.

May 18, 2009 | Panasonic Projection Televisions

1 Answer

Immediately Shuts off with blinking light codes

I suggest doing a google search using the tv model # and brand.
I have learned myself that different big screen tvs seem to each have their own common problems. I have read before of power supply issues that cause what your describing.

Mar 11, 2009 | Samsung HL-R5078W 50" HDTV

1 Answer

It wont stop shutting off!

You can try the suggestion on the site I posted below. This site addresses a specific problem that tends to be fairly common in some Sony sets. Only try this if your sure that the problem your having is the same problem described in the site. Look at the picture of the screen on the site and see if that looks like your screen. The set on the site is red but it could be Green or Blue also. If you set won't stay on, you may have to turn the appropriate knob down slightly in order to get the set to stay on. Although he mentions this will fix a convergence problem, the fix described has nothing to do with convergence. The symptoms you are describing do not sound like a convergence issue. I am however a little concerned about the smell. Another thing is, after the set shuts off the Led will blink a code. For example it may flash 8 times then pause and repeat. You can Google this to find out more info on the problem. Many things can go wrong with TV's, I recommend you do as much research as you can to narrow it down. Good luck, here is the site.

Feb 26, 2009 | Sony KP-57HW40 57" Rear Projection...

4 Answers

Green flashes then tv turns off

or a new lamp. you could first replace the lamp.
the screen might work fine for a couple of seconds, but then it fades away or deteriorates. This means the lamp is going bad.

Aug 23, 2008 | Sony KP-51HW40 51" Rear Projection...

1 Answer

Red fade, red flashes screen turns off followed by tv turning off.

Replace HV block when self-diagnostic LED blinks 8 times =
Sony part # 8-598-955-32....if that doesn't cure it, the red CRT
would be next..................T.

Dec 21, 2007 | Sony KP-51WS500 51" Rear Projection...

1 Answer

Screen Turns Red and then TV shuts off

you red crt is shorting out.tap the neck of the red crt lightly to try to remove the short.if no go also inspect the neck board.

Oct 22, 2007 | Sony KP-51HW40 51" Rear Projection...

1 Answer

Red Flash -- TV Shuts Off

Unfortunately, you are describing the classic symptom of a bad picture tube. When the tube warms up a short developes in the neck of the tube, usually between the heater and cathode and this forces the tube to go full on, giving a bright flash of the color of the defective tube. The computer senses the extra current flowing through the flyback (high voltage) transformer when the tube is shorted and shuts the set down. The only solution is to replace the picture tube, but the Sony tubes are relatively inexpensive (about $175 for the entire tube assembly including sealed coolant) and they are very easy to replace and realign, but of course this must be handled by someone with experience.

Jul 02, 2007 | Sony KP-51WS500 51" Rear Projection...

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