[SATLUG] Screen Goes Blank
geoff at w5omr.shacknet.nu
Thu Dec 21 08:45:17 CST 2006
scs at worldlinkisp.com wrote:
> Although this does not fit the stated problem, it's
> related and perhaps someone may find this worth
> consider and/or remembering.
> My LCD randomly would go blank, at first I suspected
> the video cable connections and and the video card,
> about the third time, probing further I discoverd the
> DC connector in the back of the monitor was losing
> Although the DC connector was fully inserted, removal
> and reinsertion cured the problem, probable causes;
> dissimilar metal expansion~contraction, surface film
> and weak tension on the LCD's internal ground contract
> The stated reinsertion cured it (low voltage high
> current connections are conductivity hogs).
<donning my hamradio/electronic gadgeteer hat>
More than likely, it's the nearly non-existent physical support of the
connector on the PC board.
As you say, low voltage/high current connectors are conductivity hogs,
but you -really- need something a little thicker than 3 human hairs,
held together with solder to make a better physical connection of the
surface-mounted connector to the PC board. THROUGH the board would be
I'd be -highly- suspicious of a cold or cracked solder joint where the
plug socket is mounted.
73 = Best Regards,
> Q: Are you sure?
>> A: Because it reverses the logical flow of conversation.
>>> Q: Why is top posting annoying in email?
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