I replaced the stk 393-110 IC chip and the tv worked perfect for a day and a half... then... it shut off and would not come on. This is when I started getting the error code 22. I then replace the two 5 amp pico fuses f9a04 and f9a05 and it didn't fix the problem. I have since read that I should have replaced the power caps but am also reading that a closer match to my problem is the IC chip agaim. I used a generic chip and did not insist on the "sanyo" chip. Is there and educated opinion out there as to whether the cheaper chip is my problem or should I look elsewhere? Any appropriate help would be aprreciated. Thanks!!!
I would imagine that you need to check the power ballast appeared to be intact before even touching the IC for an Error 22 (short protect).
A little Google'ing resulted in the following series:
- Check horizontal output transistor
- Check diodes on horizontal sweet connection circuit
- Check power supply
- Check ICs on convergence board
- Check DM board (3300 mfd @ 16v)