| Electronics > Repair |
| Sorensen DLM300-2 need blown part numbers. |
| << < (2/2) |
| fzabkar:
R denotes a decimal point, so 4.7 ohms. |
| coromonadalix:
r385 seems toasted ??? look a like symmetry ? r288 = r321 not sure if r289 is = r350 or r322 ??? WL3 ?? as the same value as R350 deductions seems right = 1002 value ? oops loll 2001 be sure to measure it |
| R-1125F:
I got everything back together and working but with one issue. Without a load, the output transformer is buzzing. Without a load, the buzzing get louder as the voltage is increased. Under load it is quiet. While is was buzzing I tried to press on the transformer winding and the core but there was no change. As I said, there is no problem under load. Could there still be a problem that is causing the transformer to buzz without a load? |
| coromonadalix:
could be some "normal" behavior since some of theses psu can be phase controlled / pwm controlled etc ... and the x-former run on light load unless you remove it, and dip it in rosin with some vacuum air out, i would not touch it i have other brand similar psu's, and you do hear some supply noises unless it is to loud ?? was it like this before the problems ? |
| R-1125F:
I bought this as not working so I don't know how it worked before. I guess I should test it to see what the minimum load is needed to quiet down. It didn't blow up when I put a heavy load on it, so that's a good sign. |
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