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jplt
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Last Activity: 12-06-2013, 04:18 PM
Joined: 07-12-2011
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  • Re: Dell 1800FP, not powering up.

    Ok so here is what I got:

    U704 Part#: KA78M05R, Pin 1: 12.07v, Pin 2: 0v, Pin 3: 5.05v

    U801 Part#: BA033, Pin 1: 4.65, Pin 2: 0v, Pin 3: 3.32v

    U803 Part#: CQ32 or 1725, Pin 1: 0v, Pin 2: 2.48v, Pin 3: 3.62v

    Those look right to me. But if it is the eeprom how can I go about testing. Should I try to pull it off of the other logic board, it has the same part number of Atmel AT49RF001n, like this board. They have the same Model number and manufacturing date, but they do have different power...
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  • Dell 1800FP, not powering up.

    I recently started working on two Dell 1800FP screens. One of them powered up and just had what looked to be a video issue, it was flickering and the picture kept scrolling up. I was able to find a fix on this thread [url]https://www.badcaps.net/forum/showpost.php?p=67520&postcount=12[/url] . I replaced the SMD caps C739 and C207 on the input board with [url]http://search.digikey.com/us/en/products/EMVY160ADA100MD55G/565-2442-1-ND/757603[/url] (sorry I don't remember if direct linking is allowed) and the video problem went away. I also recapped the power board and re-soldered the 3 transistors...
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