Convergence problem AGAIN shortly after repair
Hello All, Great Site!
I had a convergence problem with verticle Blue and so I replaced both
STK392-110 and everthing worked great. Touch Focus also worked without error.
The TV was on a few minutes then turned off till the following morning.
Then maybe 10 or so minutes the picture mess up. It was a convergence problem with the verticle Green this time. Again I was having the touch focus errors as well.
Is there something else I should check or replace?
Also, which one of the stk392's is the verticle? The one toward the middle of the board or the one closest to the back of the TV?
Thanks in Advance.
I had a convergence problem with verticle Blue and so I replaced both
STK392-110 and everthing worked great. Touch Focus also worked without error.
The TV was on a few minutes then turned off till the following morning.
Then maybe 10 or so minutes the picture mess up. It was a convergence problem with the verticle Green this time. Again I was having the touch focus errors as well.
Is there something else I should check or replace?
Also, which one of the stk392's is the verticle? The one toward the middle of the board or the one closest to the back of the TV?
Thanks in Advance.
Televison & Video - Toshiba - 50H82 50" Rear Projection Television
Answers & Comments
Hi,
Q752 is green vertical drive STK that needs to be replaced and I would recommend to check surrounding parts like bigger resistors near STKs and if resistor color is faded, replace it.
TV has 2 STKs and each STK contains 3 amp section to drive convergence so there are 6 convergence coils, 3 horizontal of each gun and 3 for vertical.
I also receommend to download service manual copy of your TV Toshiba 50H82 from Manual Zone for small fee as it has schematics and parts list info.
Let me know for further query / info.
Thanks.