On Apr 21, 7:37*pm, eganders wrote:
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
1. *What typically goes wrong when the main fuse blows and the picture
goes out of adjustment
2. *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
Here is a photo of what the convergence problem looks like
http://img.photobucket.com/albums/v3...ce100_1203.jpg