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Eletrechip @biochip
Rep: 1
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Posted: Oct 9, 2020
Diode is marked D1 , condenser C3 , IC1 in circuit board
Is this a good question?
6 Comments:
Is the marking totally unreadable on the top of the IC?
Feb 17, 2021 by honakrisi
I think you need some schematics on this, but judging from this picture, i think you need to use IPA to clean up those oxidation.
R3 and R4 SMD looks bad, i will change those if i know the values.
Check for the IC if it is shorted too.
Feb 18, 2021 by Augustine
update, something interesting based on a search from past,
Why doesn't my charger work?
please read more
It is bad, hard to arrange components for replacement. Solution I found a new
Feb 26, 2021 by Eletrechip
Some of the components seem to be damaged
Mar 4, 2021 by John Marasco
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Is the marking totally unreadable on the top of the IC?
by honakrisi
I think you need some schematics on this, but judging from this picture, i think you need to use IPA to clean up those oxidation.
R3 and R4 SMD looks bad, i will change those if i know the values.
Check for the IC if it is shorted too.
by Augustine
update, something interesting based on a search from past,
Why doesn't my charger work?
please read more
by Augustine
It is bad, hard to arrange components for replacement. Solution I found a new
by Eletrechip
Some of the components seem to be damaged
by John Marasco
Show 1 more comment