UTCOMP Pro does not work anymore

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ArT
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Re: UTCOMP Pro does not work anymore

Postby ArT » Wed Jan 25, 2023 7:03 am

Seems like DC/DC converter on OLED board is faulty or microprocessor on OLED board (chip on glass - can not be replaced) is faulty and drain to much current. Please measure voltages on 2 DC/DC converters, I marked 10 points:
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UTCOMP-PRO_OLED-Voltages.jpg
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liryc
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Re: UTCOMP Pro does not work anymore

Postby liryc » Wed Jan 25, 2023 11:09 pm

this is what i have
and DC/DC converter is very hot (6-7-8-9-10)
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0.36v.jpg
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ArT
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Re: UTCOMP Pro does not work anymore

Postby ArT » Thu Jan 26, 2023 7:15 am

Ok, it may be DC/DC converter faulty or driver on OLED. Please replace this chip marked with pins 6-10, it's MP1541 / MP1541DJ in SOT23-5 package: https://www.monolithicpower.com/en/mp1541.html


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