My RCA rear projection TV has worked well after help from you TV service people in January, 2005. It has a chassis number of PTK195AC and is model P60812BL
At that time I found that the surface of the PC boards had some of the coolent and other debris which I cleaned and that fixed the problem.
Coming home from vacation today, the main fuse from the AC input failed. Upon replacing it, the convergence is all messed up. I went into the service mode using the front panel as the service manual describes, I can't seem to get the grid pattern that I got back in
2005. Can anyone tell me
- What typically goes wrong when the main fuse blows and the picture goes out of adjustment
- How do you get into the built-in geometric alignment grid pattern?
I am into the service mode, but it does not seem to have any pattern except the P:(for parameter) and V (for parameter value): on the screen.
I would like to nurse this TV along for a while. It has given good service and I have no reason to replace it other than the present problem. I really don't want to get into it deeply. For example, I would prefer NOT to get a chipper checker or have to hook an oscilloscope to it.
sci.electronics.repair