Question about Televison & Video
I have had 3 of these sets, all with blown '+5V Standby' circuits. The culprit was the 8-pin DIL FSD200 controller chip. When it blows it takes out the little optocoupler, the small SM bridge rectifier (PCB underside) and the 20mm fuse. The FSD200 is hard to source, but Digi-Key have plenty at £0.88 each. They also sell replacement bridges, fuses and optocouplers. If you attempt the repair I recommend that you fit sockets for the controller and optocoupler. If you fit the opto round the wrong way the +5V Standby rail will try to rise to over 10V and the set's control logic may be damaged. Good luck.
Posted on Dec 18, 2008
I am looking for a t4 standby transformer for one of these sets.
Posted on Dec 01, 2013
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