On Mon, 9 Mar 2009 23:33:43 -0700 (PDT), Griff put finger to keyboard and composed:
STR-F6600 datasheet:
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2SC2655
From page 14 of the STR-F6600 datasheet:
"Diodes carrying the high-frequency flyback currents (such as the transformer rectifier diodes) should have a fast or ultrafast reverse-recovery characteristic, adequate current handing and peak reverse-voltage rating."
In view of the extensive damage, you may want to check the optocoupler and any overvoltage protection diode on the secondary side of the switchmode transformer.
MOSFET current sense resistor?
FWIW, this is the service manual for a Samsung set that appears to use the same regulator IC:
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This forum may have some useful information and a service manual:
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"This PDT6-9D Chassis is for CHANGHONG 'CELESTIAL' RPTV Model DP4338 [should that be DP4388 ???], HP5188i, HP4388i and DP5188."
Local support:
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Celestial Rear Projection Television OPERATION MANUAL for DP4388 and DP5188:
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- Franc Zabkar
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