Hi there!
I have this Samsung UE19D4003Bw that suddenly started doing a power cycle at soon as it got AC in.
I can see both the BL and the front led blinking fast
I opened it and found nothing clearly broken or visibly burnt, no visible bad caps.
I removed the PS to MAIN harness and nothing changed
Also removed BL plug and front led still blinking (not a powerup process blinking but a fast blinking)
I checked DC at the main capacitor and found a correct >300V voltge
I went to the primary section in the main transformer and found no AC voltage on inputs, just "remains" 0-5v at times
I can't spend much money in such a small / cheap TV set by just going ahead and changing the chopper IC (FSGM0765R), transistors, diodes and capacitors, so I would truly appreciate some comments from experience on what to test first
PS model is BN44-0467A. Im attaching an schematic of one that's either the same or very very similar.
Thanks
I have this Samsung UE19D4003Bw that suddenly started doing a power cycle at soon as it got AC in.
I can see both the BL and the front led blinking fast
I opened it and found nothing clearly broken or visibly burnt, no visible bad caps.
I removed the PS to MAIN harness and nothing changed
Also removed BL plug and front led still blinking (not a powerup process blinking but a fast blinking)
I checked DC at the main capacitor and found a correct >300V voltge
I went to the primary section in the main transformer and found no AC voltage on inputs, just "remains" 0-5v at times
I can't spend much money in such a small / cheap TV set by just going ahead and changing the chopper IC (FSGM0765R), transistors, diodes and capacitors, so I would truly appreciate some comments from experience on what to test first
PS model is BN44-0467A. Im attaching an schematic of one that's either the same or very very similar.
Thanks
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