DT1643s chip in LG monitor...

[sonnic...@gmail.com]

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

 

[Ricky]

On Friday, November 18, 2022 at 5:09:47 AM UTC-5, sonnic...@gmail.com wrote:

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.

--

Rick C.

- Get 1,000 miles of free Supercharging
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[Clive Arthur]

On 18/11/2022 10:09, sonnic...@gmail.com wrote:

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

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

https://www.circuitstransistors.com/circuitstransistors?search=DT1643S

--
Cheers
Clive

 

[Rich S]

On Friday, November 18, 2022 at 12:08:01 PM UTC, Clive Arthur wrote:

On 18/11/2022 10:09, sonnic...@gmail.com wrote:
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
They seem to be available and inexpensive, but no datasheet...

https://www.circuitstransistors.com/circuitstransistors?search=DT1643S

--
Cheers
Clive

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