Question about Sony KV-29LS60 29" TV

Open Question

Sony Trinitron KV28LS60B Problem

When TV is switched on it works for a short time, then menues flash on screen and red light flashes continuously, the remote will not work now, the picture and sound have gone. Sometimes red light stops flashing and TV returns to normal but usually I must turn off power manually, leave for a few minutes and switch on again. The length of time for which it operates normally is getting shorter(10 mins). Sometimes when menu appears the picture and sound remain but not usually. Does this look like a serious problem. The TV is 4 years old. Hope you can help Diarmuid Byrne

Posted by on

6 Suggested Answers

  • 236 Answers

SOURCE: no sound or picture now

The set may have shorted the horizontal out put transistor since it kept coming on sometimes. This could be cause by the driver transformer arcing causing a "spike" in voltage going to you horizoltal out put transistor. Stargazer

Posted on Apr 10, 2007

  • 326 Answers

SOURCE: No picture, sound works on Sony TV

Hello, maybe there is a contact error in power supply or the deflection stage. If the resoldering does not help- here are some possible solutions: remedy Replace flyback location LP04. Entered for KV32S22 /SONY (Chassis) remedy 2 Replace IC351, Q602, Q601 (2SC4834M), R607 (1R/0.5W), R622 (10R), IC641 (SI3090CA) and Q502 (2SC5148). remedy 3 Replace tuner. remedy 4 Replace R607, Q502 and IC601. Entered for KV32S22 /SONY (Chassis) remedy 5 Replace regulator IC, R607, check C609, C610 (0.68pF) and C613 (0.0022pF/500V). remedy 6 Replace horizontal output transistor (2SC5148), IC601 (MX0841) and R607 (0.1R). remedy 7 Replace IC1701 and IC601. remedy 8 Replace Q501 (2SC5148), R607 and resolder horizontal driver transformer. remedy 9 Check and replace horizontal output transistor Q502 (2SC5148) and IC601 (MXD8411AB-F). remedy 10 Replace shorted R607. Also check T501 and Q501 for dry joints. remedy 11 Replace C608. remedy 12 Replace Q602 and D648. remedy 13 Replace Q502, Q601, Q602 and R602. Entered for KV32S22 /SONY (Chassis) remedy 14 Replace D626 (6.2V). remedy 15 Replace IC801 and R607. remedy 16 Replace horizontal output transistor and the associated damping capacitor. Check flyback transformer and SMD microprocessor as well. remedy 17 Replace R639 (4.7R/0.250W) located on G board in standby power circuit. remedy 18 Replace D600. remedy 19 Replace C502 (0.47uF/50V). remedy 20 Check D655(1N4937), D657 (1S1834) and Q601 (2SC4423). remedy 21 Check D606 for leakage. remedy 22 Check yoke between vertical and horizontal windings for S/C. remedy 23 Replace Q601 (2SC4834MNP), R607 (0.1R) and C517 (2.2uF/250V). remedy 24 Replace R611.

Posted on Apr 22, 2007

  • 29 Answers

SOURCE: Sony kv35s66: No picture, just sound and red blinking

The most common problem (I have fixed lots) is the Vertical amplifier has developed a loose connection. It probably just needs resoldering. As things expand it makes and looses connection you picture goes in and out. The vertical chip is a large black chip that gets hot, over time it degrades the solder until a connection is damaged. Most newer sets have a protection circuit that senses the lack of height, and shuts down the picture tube to save it. When the picture dropped to a line on older TVs and left that way too long it would burn a line into the face of the picture tube. You then had to have the picture tube replaced along with the vertical amp. it's kinda like a screensaver for your TV.

Posted on Feb 02, 2008

  • 4234 Answers

SOURCE: Sony Trinitron Color TV KV-35V65 - No Picture, red light stand/by timer flashing

A reset won't fix this. The standby light should be blinking a repeated count with a 3 second pause inbetween. Post that count here. That will indicate the circuit/condition that is preventing the set from turning on.


Posted on Jul 18, 2008

  • 252 Answers

SOURCE: Sony Trinitron KV-24FS100 red light flashes 4 times

your tv had a problem.if you have a knowledge in electronics, check or replace the horizontal transistor beside the plyback. it is a black square parts with 3 pins.

Posted on Oct 14, 2008

  • 172 Answers

SOURCE: power clicks on and red power light flashes but no picture

Sounds like it could be the flyback transformer, time to leave CRTs and go to LCD, LED or Plasma.

Posted on Aug 11, 2009

Add Your Answer

0 characters

Uploading: 0%


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


1 Points

Related Questions:

1 Answer

Standby/timer flashes and screen goes black

How many times do this standby light flashes at one time switch ON? Count it. These flashes are fault indications. From the number of flashes, you can get an idea about which section circuit inside it is faulty. After confirming it, If you wish to get more details of these blinking codes, check this link.

Mar 02, 2013 | Sony FD Trinitron WEGA KV-36FS120 36" TV

1 Answer

Sony Trinitron TV. No picture; red standby/timer light flashes.

My Sony trinitron has the stero lite on steady and standby lite flashes four times then pauses and repeats. Can you tell me the circuit/condition causing the set to not turn on.

Jul 15, 2009 | Sony FD Trinitron WEGA KV-36XBR800 36" TV

1 Answer

Sony Wega KV-XF21M83 21" Color TV red LED flashing two times

mt sony trinitron power light is blinking from green to red twise and then pause for 3 seconds and then blinks again from green to red

Jul 05, 2009 | Sony FD Trinitron WEGA KV-32FQ70 32" TV

1 Answer

Television switching itself off with red light flashing.

Had same problem on a 50inch wega tv. It needed lamp replaced,not hard to replace about $180.00
from Sony.

May 07, 2009 | Sony FD Trinitron WEGA KV-32FS120 32" TV

1 Answer

Cannot get tv out of stand by mode..

upon hitting the power button, the red light showing on the front of the tv should flash a couple of times, the screen should come on and the light goes off..the red "stand by " light stays on and we cannot get the screen to come up..needless to say, cannot get to the menu to change any display options...any suggestions?

Apr 10, 2009 | Sony FD Trinitron WEGA KV-32FS120 32" TV

1 Answer

Sony TV will not come on

hello my friend, that flashing light is indicating that you have a problem in the horizontal ckt, more likely is a defective diode

Oct 10, 2008 | Sony FD Trinitron WEGA KV-36FS120 36" TV

5 Answers

Sony Trinitron blank tv/no picture

When I turn on the TV I hear the click sound and the TV powers up. Immediatly the red (standby) light begins to flash 6 times on and off. this happenes only in the morning, but after 5:00PM when youturn on the TV as if nothing is wrong.

what is the problem?

Feb 08, 2008 | Sony FD Trinitron WEGA KV-32HS510 32" TV

1 Answer

Reddish screen on sony wega kv-28fx68 100hz trinitron

it sounds like a b+ cap going bad and is intermittant that feeds the the video drivers on the crt pcb or the crt is shorting.

Oct 14, 2007 | Sony FD Trinitron WEGA KV-32FS120 32" TV

Not finding what you are looking for?
Sony KV-29LS60 29" TV Logo

Related Topics:

71 people viewed this question

Ask a Question

Usually answered in minutes!

Top Sony Standard (CRT) Televisions Experts

The Knight
The Knight

Level 3 Expert

66409 Answers

Jaime Hernandez

Level 3 Expert

2267 Answers

matt martin
matt martin

Level 3 Expert

1187 Answers

Are you a Sony Standard (CRT) Television Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides