My sony 27" wega (8 yrs old) just died. the standby light blinks, but not in any pattern. The picture is green/yellow with about 15 horizontal lines on a 30 degree slant. Should I replace the screen or power supply, or should I just get a new tv?

These blinks [flashes] are fault indication (Error Codes). From the number of blinks occur at one time switch ON, you can get an idea about the faulty circuit section inside it. This will make repair easy. These are called blinking codes. Make sure about the exact number of blinking of the standby/power LED, by switching On & OFF the set, for at least two times. Count it carefully. If you wish to get some details, check the site linked here. It has details about blinking codes, and fault locating procedure, to many popular brand TVs and other devices. http://electronicshelponline.blogspot.com/
Blinking codes details to many popular brand TVs are given. Surf the site with patience.

These horizontal lines are vertical flyback lines and would indicate
one or more of the tubes cathode drive circuits are defective.
As the picture is predominantly yellow this would indicate excessive drive to red and green guns. Check the red and green video output stages especialy any clamping diodes.regards from Vintie

Measure B+ on the set , If normal check G2 voltage


G2 adjustment is on the Flyback Transformer

Hello jorge and welcome to FixYa. With your particular model of television six blinks mean a Horizontal Drive Failure has occurred. If you have any television repair experience you could try checking the jungle for loose or possibly bad soldering. In some case the jungle IC was found to be defective on this model as well. You should also inspect the horizontal drive transformer windings if at all possible. If you are unable to repair this yourself I would personally say to you no it is not worth the cost to repair it as purchasing a new television would probaly be a more prudent decision. I hope you found this helpful and thank you for visiting FixYa.

A poor solder connection on B+ is the line, Horizontal drive transformer or at the base of Horizontal Output transistor can caused that. Re-soldering these section can fix it..

MY SONY PROJECTION TV WENT BLANK WITH NO SOUND GREEN LIGHT WAS ON WHATS WRONG

KV-32HS510 and KV-27HS420, seven times blink error code shows problem in Horizontal deflection circuit.

There are many possibilities like dry solder joints, weak capacitors, Horizontal transistor short or flyback transformer fried etc.

If you have little experience of TV repair and good solder skills and have necessary tools to test / check defective parts, then you can make it. you also need to have related service manual to see board location, schematics and part numbers.

the power is blinking because there is a deffective parts... the supply that makes oscillation of tv has been cut off... either the horizontal transistor is open or the resistor from the abl change its value...if you have knowledge with the parts maybe you can try... only the qualified servicemen can repair the problems...

try to replace the horizontal out transistor

Our tv is about 2 1/2 yrs old and did the same thing we had to replace the bulb and bulb driver board this fixed the problem