burnt IC, I can't read the reference.

Thread Starter

Timby

Joined May 20, 2021
6
Hello. I have an IC I can't read the reference. Could somebody help. I can Identify G ZL D4 but not the remainder . Thanks for your help.
 

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narkeleptk

Joined Mar 11, 2019
545
The numbers you can see look like part of the date code and not part number.
I see part of the ST logo so its a ST soic 14.
Try and show a better photo of the surrounding circuit. Describe what its in. Or even try a jotting down a bit of a schematic about it.
 

Thread Starter

Timby

Joined May 20, 2021
6
Clean the top correctly and use angled lighting.
Hi. Here is an other photograph op the component. It looks like on top 339 and GZL D426. I try to find what it is but nothing up to now. It is close to the power supply of an amplified Eurolive subwoofer. thanks for your help.20210525_162945.jpg20210525_162945.jpg20210525_162945.jpg20210525_162945.jpg20210525_162945.jpg20210525_162945.jpg20210525_162945.jpg20210525_162945.jpg20210525_162945.jpg
 
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Deleted member 115935

Joined Dec 31, 1969
0
LM339 is a simple comparator

Was it burn during soldering or in operation

if in opperation, I'd suggest that a lot more would have been taken out as well,
 
As others have explained, if you plan on repairing the unit, it is very important to have an understanding why it blew up in the first place.
ICs don’t burn like that on its own.
 

Thread Starter

Timby

Joined May 20, 2021
6
LM339 is a simple comparator

Was it burn during soldering or in operation

if in operation, I'd suggest that a lot more would have been taken out as well,
It burnt in operation. I think an overvoltage occurred. I'll check the components around.
 

Deleted member 115935

Joined Dec 31, 1969
0
If it is the comparator, to do that amount of burning takes a LOT of energy
were talking lightening or at least mains voltage ,

How did you get to try to fix it ,
was it in use when it went bang ?
 
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