I got a free Polaroid flm 323 TV and I am assuming that the power supply is bad because I don't get any voltages like shown on Copp#ll tv site or youtubes. But I have it at the main cap. I already replaced a couple of diodes and tested the caps.
This is just for me to learn on and try to fix.
So I was wondering about the optocouplers. Took them off to test. Using a DMM I got nothing in diode mode up to 200k. My little lcr-t4 didn't find anything.
Using a tester i rigged up with a 3.7v battery, led and 1k res on breadboard and only one lit up and it lit up once. The other 3 did not. So I wonder if I either blew them up or they didn't work anyway.
I have plenty of scrap power supplies from old crts, satellite boxes and PC. Would those optocouplers be safe to use or are they all different like transistors and mosfets?
This is just for me to learn on and try to fix.
So I was wondering about the optocouplers. Took them off to test. Using a DMM I got nothing in diode mode up to 200k. My little lcr-t4 didn't find anything.
Using a tester i rigged up with a 3.7v battery, led and 1k res on breadboard and only one lit up and it lit up once. The other 3 did not. So I wonder if I either blew them up or they didn't work anyway.
I have plenty of scrap power supplies from old crts, satellite boxes and PC. Would those optocouplers be safe to use or are they all different like transistors and mosfets?
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