At this moment Im trying to fix this power supply.
Problem is
When I power on the tv the tv the red light appears. It sometimes responses to the remote, sometimes a couple of blinks but thats al
The power supply is a bn44-00213a from which I downloaded the schematics
When searching on this forum I checked a couple of thing.
* I checked all the soldering joints and some of them I touched up a bit
* I did the blowdryer test to check of the capacitors might be the problem. But I didn't expect them to be bad anyways. But that all didnt help
* When not connecting pin 1 and pin 3 of cnm802 a get a steady 5.26v. No more voltages on the rest of the pins. The Bridge rectifier shows 230ac in and 310vdc out. So the main cap.
* when connecting pin 1 and 3 the voltages on the connections jumps from 5.26 up and down from 3 - 3.3 volts. Maincap is still 310 volts
Something I did see was some black (looks like burned) near CX802S, NT811 and CY802S and CY801S.
The thermistor is a 5d-15 with a resistance of about 7 ohms. I think a bit high but it went down a soon a the soldering iron came near it.
Somebody got any hints
Problem is
When I power on the tv the tv the red light appears. It sometimes responses to the remote, sometimes a couple of blinks but thats al
The power supply is a bn44-00213a from which I downloaded the schematics
When searching on this forum I checked a couple of thing.
* I checked all the soldering joints and some of them I touched up a bit
* I did the blowdryer test to check of the capacitors might be the problem. But I didn't expect them to be bad anyways. But that all didnt help
* When not connecting pin 1 and pin 3 of cnm802 a get a steady 5.26v. No more voltages on the rest of the pins. The Bridge rectifier shows 230ac in and 310vdc out. So the main cap.
* when connecting pin 1 and 3 the voltages on the connections jumps from 5.26 up and down from 3 - 3.3 volts. Maincap is still 310 volts
Something I did see was some black (looks like burned) near CX802S, NT811 and CY802S and CY801S.
The thermistor is a 5d-15 with a resistance of about 7 ohms. I think a bit high but it went down a soon a the soldering iron came near it.
Somebody got any hints
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