Delta RUNTKA932WJQZ power supply for Sharp

[tjmethod]

Does anyone know thesepoiwer supply's? I desoldered the 18 leg integrated circuit and had thought I had all the legs lifted ready to remove but 4 copper sot came off and I couldnt save the or even find 2 of them. Anyway, all but one I was able to scrape off the green solder mask from three of the traces leading to the spots which I can blob onto but the 7th on top in the picture shows no evidence of a trace. Does anyone have an idea why this is?

[budm]

Re: Delta RUNTKA932WJQZ power supply for Sharp

Do you have the P/N of the IC?
BTW, pin 1 is at the bottom left.

[tjmethod]

Re: Delta RUNTKA932WJQZ power supply for Sharp

Hey Bud- its DDA014 or at least the new ic part # - I'd have to check later if its the same as the one that came off. You had been guiding me along on the tv which has been on the back burner- https://www.badcaps.net/forum/showth...ht=LC-60LE600U. Your last post on the thread was about checking out another thread, I just wasn't able to find the corrolation. Since these boards are not that previlant or high priced, I figured I'd fix the power supply and retest the voltages and probably try to snag a main if one shows up on ebay since this board is hard to find.

[dick_barton]

Re: Delta RUNTKA932WJQZ power supply for Sharp

The attached schematic showing a DDA014 should help in identifying which pins are or are not used.

[tjmethod]

Re: Delta RUNTKA932WJQZ power supply for Sharp

Thanks- with the correct pin numbers it appears 12,13,17 & 18 are "no connection" so those legs don't need to be soldered to the board and can be snipped back even?

[dick_barton]

Re: Delta RUNTKA932WJQZ power supply for Sharp

That's what it looks like. Yes.

[tjmethod]

Re: Delta RUNTKA932WJQZ power supply for Sharp

Thanks... I just need to more careful