Sony trinitron xbr (9 years old) failing to power up

Common problem on those. It has deflection stopped. I.C. on deflection board. Need shop to repair.

Have to try switching on the the channel through your remote control? Sleep timer maybe On

You need to replace 2 ic part MCZ3001D located on the fron of the board on the left side

Forward voltage/current problem....needs a new board....You might try unplugging it for a few hours...If the TV starts you will need to leave it on until it gets repaired or replaced.

Most common will be intermitten won't turn on. This is a failure in the power supply,
The second is trouble with the Qbox or Cable card circuit. You don't wan't this one it's costly!

This could be a scan amplifier failure, and there is a loss of high voltage to the CRT. Part of the power supply may have also failed. In these sets, if the CRT emission goes low in emission, or the CRT goes defective, the bias supply to the CRT will go in to protect.

An experienced TV service tech can troubleshoot the set and give you an estimate for service. Considering the age of the set, the cost of service may not be worth it.


Jerry G.

Hello,
buy technical Sony docs on Ebays :
SONY TV SERVICE & REPAIR MANUALS ON DVD + 400 MODELS 12,99 USD

and good luck : Thierry

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

We are going to have to know just a little bit more about it.
How old?
What Model number?
What kind of TV?

In the service menu or customer menus? On a Sony I wouldn't use a standard degausing coil as you will do damage to the CRT. Sony requires the use of a low power wand degauser.