| 1 |
On Wednesday, 28 October 2020 19:27:06 GMT Dale wrote: |
| 2 |
|
| 3 |
> I'm thinking about replacing that cap and seeing if it works. I've |
| 4 |
> repaired a few monitors that way but my question is, should I trust it |
| 5 |
> after replacing that cap even if it works?? Should it be load tested or |
| 6 |
> something? Does the protection circuitry only work once? |
| 7 |
|
| 8 |
It depends what was damaged and the cause of it. It could be the capacitor |
| 9 |
reached its predicted end of life. It could have been a transient voltage, in |
| 10 |
which case more things in the protection circuit (diodes, resistors) may have |
| 11 |
also been damaged. |
| 12 |
|
| 13 |
I had an old desktop which during a lightning storm ended up with a blown PSU |
| 14 |
and a blown winmodem. The winmodem was unrepairable, but the PSU survived |
| 15 |
following the replacement of a single capacitor. :-) |
| 16 |
|
| 17 |
For the cost of a capacitor I'd give it a try and then measure the output |
| 18 |
voltages under load. |
Archives