All Questions
Tagged with electrolytic-capacitor repair
10
questions
0
votes
2
answers
275
views
Found some SMD capacitor leakage, can I sand them to clean the PCB?
After removing the 3 electrolytic smd capacitors from a car ECU, I found some leakage, although not sure if this is the main culprit of the problem in my ECU, but I'd like to clean them. I tried 99% ...
- 251
0
votes
1
answer
73
views
Capacitor mounting in switched power supply
I'm repairing switched power supply. It is custom inside device and cannot be changed with another power supply. It is not first time I've had to repair it. The problem is always the same: grilled ...
2
votes
0
answers
123
views
What would be the cause of measuring AC voltage across a LM7805?
This is my first time here so I apologize if I don't provide enough information. I am trying to repair a centrifuge that is giving an error on its LCD display. Though the service manual doesn't say ...
- 21
1
vote
0
answers
171
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Can I repair this motherboard damage? [closed]
I accidentally knocked a SMD electrolytic capacitor off the motherboard of an ASUS laptop I was stripping down to clean. It looks like the copper pad came off with one of the legs. So My questions are:...
user261778
0
votes
1
answer
653
views
Can I change 1000 uF, 16 V for 1000 uF, 10 V?
Few days ago my main monitor did not turned on. I opened it and discovered three capacitors, of 1000 uF/16 V each, in bad shape.
Since all stores here in my town are closed due the quarentine, I'm ...
0
votes
2
answers
1k
views
Replacing a Capacitor on an Onkyo HT-R960 A/V Receiver
I have an Onkyo HT-R960 receiver that's been acting very flaky for the past couple of months. I've had to let it warm up for several minutes before being able to use it. I would also have to turn it ...
- 101
1
vote
1
answer
2k
views
Trying to fix broken capacitor, help? [closed]
So I found an HDTV on the side of the road, brought it home, took it apart, and found the problem. A blown capacitor. So I replaced it with another one of roughly the same value (original was 16 V 470 ...
- 21
4
votes
2
answers
2k
views
Might swollen caps be working properly? [closed]
I've seen these two swollen caps in a symmetric +12, 0, -12V power supply.
The circuit (a theremin) seems to be working properly, but I don't know if that caps are going to cause damage in the whole ...
- 143
1
vote
1
answer
9k
views
How to test capacitors of non working circuit board using capacitor meter?
I bought broken sega megadrive 2 clone console. Something wrong with 7805 IC supply (I changed to another, but no result). But now I want test electrolitic capacitors and resistors, because I thing ...
- 293
1
vote
3
answers
16k
views
Replacing (and perhaps upgrading) bad capacitors within a speaker system? [closed]
A few months ago the volume of the left speaker of my pair of low-cost audio monitors began slowly diminishing. Every day it seemed to lose a fraction of it's normal operating volume until the speaker ...
- 212