Question about Projection Televisions

1 Answer

Screen is just black and power light blinks 7 times cannot power on or off

Posted by on

1 Answer

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

We usually refer to this event as the "kiss of death" syndrome. It occurs because the protection circuit (a sort of electronic fuse) has sensed that one of the many sections inside your tv has exceeded the normal current flow. This is generally because of a shorted condition somewhere in the circuitry.

The protection circuit shuts the set off and keeps it off until the fault is corrected. You can sometimes get it restarted by doing a reset. Do the reset by unplugging the power cord for 4 hours; then power it back up.

The problem is, if you cannot get it restarted, that you don't know where the shorted conditions are. It could be in any of the nearly 10 sections within the tv. It requires an expert tech who knows how to get inside, defeat the protection circuit and test the various sections.

Most common is a problem in the high voltage/horizontal section or the vertical deflection amplifier section. These repairs are quite expensive and will run as much as $200 to $300 - sometimes more.

So, I cannot give you an exact repair estimate because it is impossible for me to predict where the problem may lie, but most of the time it is on the expensive side of the range.

Sorry for the bad news.

Posted on May 13, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

2 Answers

Sony kf 50e200a screen goes black and sound turns off for min...


TV has gone into "protect mode" to do just that to protect against the damaging failure that has been detected, you will need a servicer to diagnose the failure. Good luck and Merry Christmas!

Dec 25, 2009 | Projection Televisions

1 Answer

I get a red screen and then it goes black no picture i get sound just no pic the red led light blinks 7 times


In most cases on these models the red crt is shorted and causes the set to go into a shutdown mode and flash the timer light 7 times. The part number for the red crt is 8-733-664-25 but is no longer available.

Nov 11, 2009 | Sony KP-65WV700 65" Rear Projection HDTV

1 Answer

Kp-65wv700 7 blinks


hello High voltage shutdown. The high voltage has exceeded 33k and the unit goes immediately into safety shutdown. Check power supply regulation and horizontal circuits.

shaun

Nov 10, 2009 | Sony KP-65WS500 65" Rear Projection...

2 Answers

Red light 5 blinks


your set needs attention by the authorised service - probably the Vertical scan, horizontal scan or the flyback transformer driver circuits have failed.

Jul 12, 2009 | Sony KDS-R50XBR1 50" HDTV

1 Answer

Excellent picture for a several hours, then gradually dims.


if this is a old unit the there is serious problem with the display.

check how many times the light blinks and get back to us.

Feb 08, 2009 | Toshiba TP43H60 43" Television

1 Answer

Lg. screen tv mitsubishi HDTV 1080 SERIES INTEGRATED


i went to turn on the tv and the power button don't work

Jun 02, 2008 | Projection Televisions

1 Answer

TV going to from blue to black


You both have a bad high voltage Trippler block.

Apr 30, 2008 | Sony KP-57WV600 57" Rear Projection...

1 Answer

Screen is Black Power Light Blinks Three Times


bad power sorse bring the tech in unless u know how to chage outthat part

Mar 15, 2008 | RCA HD52W59 HDTV Projection Television

1 Answer

PT-60LC13


there are fans inside tv need to make sure they are clean and free of dust

Nov 27, 2007 | Panasonic PT-50LC13 50" Rear Projection...

Not finding what you are looking for?
Projection Televisions Logo

Related Topics:

62 people viewed this question

Ask a Question

Usually answered in minutes!

Top Projection Televisions Experts

Jaime Hernandez

Level 3 Expert

2267 Answers

matt martin
matt martin

Level 3 Expert

1191 Answers

yadayada
yadayada

Level 3 Expert

61249 Answers

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

Answer questions

Manuals & User Guides

Loading...