Sony triniton model kb-36xbr450 keeps turning off by itself

Arun John

• 281 Answers
• Posted on Jan 30, 2008

SOURCE: television blinks

Try resoldering the pcb, most probably this will fix your problem.

SOURCE: SONY TV KEEPS TURNING ITSELF OFF!!

Its the BULB people! You need to change it every 3 to 5 years! I have had my sony 55" for 6 years... I had Best Buy come out 3 years ago, changed the bulb... it worked fine. Just started flasshing and shut its self off and back on again. Time for another bulb.

SOURCE: KV-36XBR450, FD Trinitron WEGA

Hello maymet,

This sounds like the HV protection circuit is cutting off the TV due to a high current event in the set. This could be a problem in the High Voltage section of your TV (Horizontal output transistor, Integrated High Voltage Transformer, and y of the deflection components, and or the CRT in cases of shorts).

I would suggest that if you do not have a background in electronics, you should have an experienced TV technician troubleshoot and repair this problem.
This is due to the nature of the dangerous voltages that are present in the television.

I hope this helps,

Thank you,

Shuttle83

SOURCE: Sony wega turns itself off

Try to resolder the main board, cold solder only.

sonic boom electronics

• 1557 Answers
• Posted on Jan 03, 2011

SOURCE: My sony kv-36xbr450 wont come on. When I plug it

the main strike relay is turning on the power board but the tube relay is detecting a fault when it trys to ingage the unit needs to be fixed by a lic pro there is no easy fix to this fault

hope this helps