LCD repair

From: dave dameron <ddameron_at_earthlink.net>
Date: Sun Jul 12 02:55:39 1998

Hi Doug and all,
At 10:39 PM 7/11/98 -0500, you wrote:
>OK, hardware gurus, how about some remote diagnostic help: PowerBook 160
>(my first and only Mac), a bunch of black vertical lines of varying width
>on the LCD (different patterns on the two panels that make up the
>display), but otherwise the display looks good (all the bits in the right
>place).
>
>Video RAM? LCD controller? Cable problem on the laptop side? Cable
>problem on the LCD side? Bad LCD? Repair FAQ?
>
I have seen vertical lines on LCD's, one or more pixels wide. These were
swapped in a repair shop, so thought there was some ESD damage to the
drivers on the LCD module. The lines were still there when the cables,
controller were switched. The rest of the display still worked OK. It may
have bad contacts to the LCD electrodes, as well, this could give the same
effect, although open contacts may leave the addressed line "blank" not black.
-Dave
Received on Sun Jul 12 1998 - 02:55:39 BST