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Old 08-02-2010, 12:27 PM
freakaftr8's Avatar
freakaftr8 freakaftr8 is offline
Convergence freak!
 
Join Date: Sep 2007
Location: Folsom, CA (no not in the prison)
Posts: 1,778
Ahh yes, the ever so usual cap failure in the power board. I've been spending some time now rebuilding LCD monitors. Constantly finding bulged 10v 1000mfd and 25v 470's blown out in these things. This last week I have been repairing a 20" Dell widescreen LCD. This one acutally all PS caps and logic board caps are good. But the LCD driver board has a shorted surface mount diode block for the 12v protect caused by some a$$ running the monitor with the ground pole yanked out of the powercord and plugged in to a 2 wire extension cord. It took some surge and blew out the LCD driver board. So im testing my soldering skills on some extremely small surface mount equip. Fun. Also I just fixed a 46" Panasonic plasma for a neighbor. Blown FET transistor in the SU board (PS driver to the gas screen). That was fun as well. (NOT). THese circuit boards amaze me how tight everything is placed together. These LCD's get really hot. So hot that they should have designed a cooling fan system. But hence the cheapness, and inhibited space avaliable, no fans.
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