Dummy load for SMPS
Even with dummy load, output voltages are all messed up. I have already
replaced the caps on primary side. Could it be the regulator IC? or the
Opticoupler?
Brian wrote:
I am troubleshooting a SMPS for a projection tv and am not too sure on
what the load should be. The prints only mention voltages, no loads.
The schematics show that a +130vdc line is connected to a
photocoupler, so im assuming this is the line that is used for
feedback regulation, and therefore the one that needs the load. I have
looked all over google for "dummy load" and cant really find a good
site to help me out on this. Any ideas Sam? The sticker on the outside
of the smps says 120v 150w if that helps.
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