My father-in-law's Mitsubishi WS-55511 TV all-of-a-sudden started showing all three colors offset from each other. Photo below. When the TV was cold, I could hit the convergence reset and everything would re-align. After the TV warmed up, if I changed inputs, the convergence would go to the way they are shown in the attached photo. I had an extra convergence IC, so I checked the fuses and replaced it, not thinking that was really the issue. Solder joints looked good on the old convergence IC, but replaced it anyhow.
After powering the TV back up, the processor won't boot and all I get is the blinking green light. This seems odd since the TV was powering up just a few hours ago. I pulled the DM module out and am planning to replace the caps in it. There are 7 1000uF, 16V caps in the DM module. They look fine, but my understanding is that looks can be deceiving. All the caps in the DM are Jamicon. The TV was produced in October 2003.
1) Are the 7 1000uF caps the right ones to try? Are there others I should replace while I'm at it?
2) What do you suspect the issue was initially? Does this look and feel like the convergence IC?
Maybe there were two problems before I started working on this. The TV hadn't been rebooted since before the convergence issue.
Thanks for any help you can lend. Trying to figure out if I'm going in the right direction.
Photo below.
jt
After powering the TV back up, the processor won't boot and all I get is the blinking green light. This seems odd since the TV was powering up just a few hours ago. I pulled the DM module out and am planning to replace the caps in it. There are 7 1000uF, 16V caps in the DM module. They look fine, but my understanding is that looks can be deceiving. All the caps in the DM are Jamicon. The TV was produced in October 2003.
1) Are the 7 1000uF caps the right ones to try? Are there others I should replace while I'm at it?
2) What do you suspect the issue was initially? Does this look and feel like the convergence IC?
Maybe there were two problems before I started working on this. The TV hadn't been rebooted since before the convergence issue.
Thanks for any help you can lend. Trying to figure out if I'm going in the right direction.
Photo below.
jt
