Boo-hoo.
My 32" Sony TV is 8 years old and stopped about 3 months ago. The two power converter transistors, a fusable resistor feeding them and the horizontal output transistor failed. I checked everything and nothing else looked nor measured bad so I got replacements from Sony and the TV worked perfectly for about 40 hours, then it stopped again with exactly the same failures. No smoke.
Is something intermittent? A capacitor shorting or opening occasionally or the windings in the horizontal output transformer?
Is my thermal compound no good? The original thermal compound was all dried up and hard as a rock. I had to carefully scrape it off. My new stuff is still like grease. The new parts must have reached their max operating temperature many times.
Is it worth fixing again?
My 32" Sony TV is 8 years old and stopped about 3 months ago. The two power converter transistors, a fusable resistor feeding them and the horizontal output transistor failed. I checked everything and nothing else looked nor measured bad so I got replacements from Sony and the TV worked perfectly for about 40 hours, then it stopped again with exactly the same failures. No smoke.
Is something intermittent? A capacitor shorting or opening occasionally or the windings in the horizontal output transformer?
Is my thermal compound no good? The original thermal compound was all dried up and hard as a rock. I had to carefully scrape it off. My new stuff is still like grease. The new parts must have reached their max operating temperature many times.
Is it worth fixing again?