Question about Samsung Projection Televisions
Based on your general description, it could be:
1. loose connection or cold solder on any of the connectors and/or boards specially those related to power;
2. heat related - at some point, the heat generated inside the unit could cause a component failure or worsen a cold solder/loose connection;
3. a component is about to fail - on most Samsung projection TVs, this would be the DM board. Exhibited symptoms would be screen flickers (white flashes) and in some instances after about a minute the screen gragually turns very very bright (almost white) from the bottom of the screen to the top.
Any of the above would require familiarity with electronic circuitry and components, use of a DVM and a soldering iron as well as access to a service manual or at the very least a schematic diagram with voltage readings. Should you be uncomfortable venturing into a DIY, perhaps your best bet would be to seek the services of a qualified professional.
Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.
Good luck and kind regards.
Thank you for using FixYa.
Posted on Jun 22, 2008
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