DT1643s chip in LG monitor

Nov 18, 2022 Last reply: 3 years ago 3 Replies

I am repairing an LG monitor, and I could really use some informaiton on a chip named DT1643(s)



Any ideas where I can find it?



It is a monitor, that does not turn on, power is present. This chip seems to be a Swicth mode controller for the rest of the things. I guess that either it does not work or does not get the enable signal or such - but hard to work with as I do not know much. It is a 16 pin chip


Are there other markings? Google reports nothing on that part number.

They seem to be available and inexpensive, but no datasheet...

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Another option is just replace the whole circuit board assembly. There are some on eBay, I see several for under $100 (US).

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