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sxc 1901F from a micronta multimeter 22-193

A

alpibucky

Hello,

Does anybody have a datasheet of this IC.
My 22-193 readings are wrong and the BATT indicator appears
continuously, but the batteries are good.

With my kind regards,

Alpibucky
 
E

ehsjr

alpibucky said:
Hello,

Does anybody have a datasheet of this IC.
My 22-193 readings are wrong and the BATT indicator appears
continuously, but the batteries are good.

With my kind regards,

Alpibucky

Could it be a dual comparator, NJM2903D ?
The RS parts list seems to indicate that as a possibility.
If the chip is a comparator, the circuit is likely dividing
the battery voltage, and comparing the result to a reference.

That said, examine the battery connections, and circuit path
from the battery to the PCB's. More likely the problem
is in the path somewhere, than a defective IC.

Ed
 
S

Shaun

once those Radio Shack multimeters go astray, that is usually it for it. Go
buy a fluke.

Shaun

"alpibucky" wrote in message

Hello,

Does anybody have a datasheet of this IC.
My 22-193 readings are wrong and the BATT indicator appears
continuously, but the batteries are good.

With my kind regards,

Alpibucky
 
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