I need the name of this sop8 IC

[Volkann]

millenium mps 1000 drum module

I need the name of the sop8 integrated circuit. The ST logo on it says ua gb145. The 8th leg is +12 volt input. The 7th leg is gnd. The 3rd leg is 2t1 smd push button. The 1st leg is out +12. Can you tell me what this integrated circuit is? 

 

[Peter BENSCH]

Welcome @Volkann, to the community!

The 2nd line here contains the date code, the marking is at the 1st line, here ending with UA.

Please try to recognize the letters/numbers at the beginning of the first line.

Regards
/Peter

[Volkann]

Thanks for the answer but the numbers and letters before ua have been deleted. I searched a lot but couldn't find anything. If you know this integrated circuit, please help.

[Andrew Neil]

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@Peter BENSCH wrote:

Please try to recognize the letters/numbers at the beginning of the first line.

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That part appears to be burnt out - so illegible.

@Volkann you might try asking on a "millenium drum module" forum to see if anyone with an undamaged one can tell you what it should say ...

[Tesla DeLorean]

You'd need an example that was legible. If this one has exploded or vented magic smoke it's going to be near impossible without a schematic or portion of one.

Could try acetone or other methods to inspect or light the part to see or raise the marks.

Might be easier to find someone with a working unit. 

[Volkann]

Thanks for the answer. I couldn't find a schematic. But when I short-circuit the 8th and 1st legs, the machine works.

but I can't turn it on or off with the button, I need someone who knows this integrated circuit then l can try to find simular.  

[Tesla DeLorean]

As Andrew suggests, forum's related to the product, rather than the IC, might be more productive at this point. Spare boards on eBay, part# markings on the PCB itself

Thomann Millennium MPS-1000

Reddit perhaps

https://www.reddit.com/r/edrums/comments/1bgjpem/millenium_mps1000_hihat_issues/?rdt=39766

https://www.thomann.de/intl/mythomann_retoure.html