Panasonic CT-1310M keeps blowing horizontal output transistor

[luRaichu]

Originally Posted by vol.2

Also, probe the 3.58MHz crystal in the Hor circuit to make sure it's outputting the correct frequency. If the crystal is pooched it will mess a whole slew of things up

I don't have a scope or frequency counter

As I said, there's 12v on Q554's emitter which means the H osc. disabling circuit is activated (which is what's deliberately throwing H sync off as a "safety feature"). I don't know why it's activating though. Could be excess HV??