[rjpotter]

I have a Toshiba 53HX71 projection tV. red and blue are ok but green arches up at the bottom and down at the top. Green also jitters at the bottom only. Has anyone run into this before or where I can get a schematic of this thing. This is the first problem I have had with this unit but some other threads sound like this model is problematic. May not be worth fixing - any thoughts.

 

[lcaillo]

Lots of folks have had this kind of problem. Read the first ten posts here very carefully.

http://www.hometheatershack.com/forums/diy-repair-maintenance/5600-crt-based-rptv-convergence-repairs.html

Look in the sticky in the DIY forum for links to service manual suppliers or contact one of the Toshiba parts distributors.

 

[rjpotter]

My set uses stk392-101(18 pin). You recommend replacing it with a sanyo stk392-40 which is a 22 pin IC. How does that work?

 

[lcaillo]

I do not recommend that at all. Read more carefully and be careful with the numbers. They matter if you want to get things right. They are completely different chips. In many sets you can replace the STK392-110 that your set has (not -101) with the STK394-160. I have had good results in many Toshiba sets with this replacement.

The STK392-040 replaces the STK392-020 and STK392-010 in all cases.