Sony KP-43T90 Convergence issues

[jts1957]

When you have IC's pulled, check for open or changed value resistors in the same area.
Yes, flash focus should work again.

[huxley]

Hey again,

I have those IC's unscrewed but I'm having trouble actually REMOVING them from the board. I don't want to force it too much and risk breaking something-any suggestions you could provide to get those out? I haven't removed the heat sink because I see no obvious way to do this. I unscrewed the two obvious screws holding down the unit. I do not know where to go from here.

Also, how do I check for open or changed value resistors in the area? I'm unsure of what you mean by that. Are we talking multimeter time here or is there some other check I should be doing?

Thank you for your help,
Huxley

[huxley]

Sorry for double posting but I just realized I need to pull this board out entirely and desolder the underside where those pins from the IC go in don't I? Argh. I am not electronically inclined. I might need a walkthrough here or a link to one if anyone has such a thing.

Thank you,
Huxley

[jts1957]

Multimeter = YES Measure resistance of resistors and compare to value written on them.
Desolder = YES Always desolder first, then remove old device, replace with new device and solder.

Many "How to" videos on you tube.