Buffer IC replacement, Samsung PN50B450B1D

[johnboy1313]

I picked up a Samsung PN50B450B1D this morning. It has the LJ92-01601A Y-main/buffer combo. The bottom buffer IC is blown. One transitor is failed shorted. I've ordered the repair kit from ShopJimmy. Hopefully, it'll work for me. Once I get the IC in place, what kind of glue should I use to cover the pins? Will hot glue work?

[johnboy1313]

Re: Buffer IC replacement, Samsung PN50B450B1D

Anyone?

[tom66]

Re: Buffer IC replacement, Samsung PN50B450B1D

I would use high-voltage insulating epoxy. Hot glue is quite brittle under heat and might not work well.

[johnboy1313]

Re: Buffer IC replacement, Samsung PN50B450B1D

Right on. I'll look for a tube. I didn't know it existed. Thanks Tom.

[johnboy1313]

Re: Buffer IC replacement, Samsung PN50B450B1D

Would this work?

http://m.ebay.com/itm/331069763628?cmd=VIDESC

[johnboy1313]

Re: Buffer IC replacement, Samsung PN50B450B1D

One more question. Can I test the tv without sealing the buffer or will it likely arc across the IC? I'd like to make sure everything's working before applying the epoxy.

[freakaftr8]

Re: Buffer IC replacement, Samsung PN50B450B1D

I have tested without sealing the buffer ic many times. I use grey permetex silicone

[capkid]

Re: Buffer IC replacement, Samsung PN50B450B1D

I've used this electronic-grade, non-corrosive silicone:

http://www.amazon.com/MG-Chemicals-C...ywords=1035-ml