Question about Polaroid FLM-323B Television

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Flm323b power supply

Ok first off I have spent hours tracing and drawing the schematic for this power supply. It is the 200-PO0-MLT666A-AH.

Photo.

http://cabaret-karaoke.com/pol/polar1.jpg

Schematic http://cabaret-karaoke.com/pol/Root_1.PDF

It was blowing fuses. Q2 and Z1 were shorted. Replaced them and got a red light. Hit the switch and got a blue light for about 5 -10 seconds Then the fuse blew again. This was with the inverter board plugged in. Now the the fet and zener are shorted again.

Nothing on the inverter board shows a short. But I wish Id a tried it with the inverter unplugged. Ideas????

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  • red neck Oct 14, 2011

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Replace Q2 by 18N50, Q8 and Q9 by STP6NK60 and Z2 and Z4 by !n4739. I have the same problem and fix it.

Posted on Sep 30, 2010

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Thought I would report my finding with this set. Maybe someone else is experiencing the same problem.

The set would turn on with no picture. No high voltage - no raster. By turning up the volume, you can hear some noise in the speakers. This set has many fuses and they all checked out ok.

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