Ahmedabad
Gujarat
380001
India
Visited one of my customer sites with the complaint of none of the CCTV Cameras were working.
Symptom found was-
On the monitoring screen it shows “No signal” error. By visual inspection I found power to the camera was not working. So I went to the DVR room and found that the SMPS provides the power to the Cameras has no indicator light glowing. I checked the SMPS output with multimeter it does not showed life.
Adapter is 12V – 2Amp. So customer have arranged new adapter and I have fixed the same and all the cameras were working now. Now I took the bad adapter with me to fulfill my curiosity that what went wrong with the adapter.
On return to the workshop I took the adapter on the work bench and opened it for inspection, visually I found everything was fine and there was no physical damage or burn marks only main primary capacitor was bulged.
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