Date: Thu, 23 Aug 2001 18:09:19
From: "neil barnes" <[EMAIL PROTECTED]>
Subject: Re: Bad 70CT MB component?
>Date: Thu, 23 Aug 2001 16:48:13 +0000
>From: "Matthew Hanson" <[EMAIL PROTECTED]>
>Subject: Bad 70CT MB component?
>
>
>>From: "neil barnes" <[EMAIL PROTECTED]>
>>
>>Okay, it's been a while since I checked, but 'simultaneous' is the best
>>one
>>to go for.
>
>I did try changing "external/internal" to "simultaneous" to see if it would
>make a difference, but no luck. You know how sometimes just changing a
>setting, and then setting it back again puts things back to working
>order...
>but alas, not this time. That blinking screen is a bad omen me thinks.
Um. <aol> Me too </aol>
>
>>But at least the video circuits are fine and the mobo is (at least mostly)
>>working.
>
>Yeah.... at least I'll be to use the system hooked up to an external
>monitor
>for the time being.
>
>>>I checked the screen in a dark room, and there's no light coming it all
>>>at
>>>boot.
>
>>Most likely option is the fluorescent or the driver circuit then. You
>>might
>>be able to see some pics on the screen by very bright reflected light. I
>>think the instructions for swapping the screen light are in the manual you
>>already have.
>
>Didn't you say that the fluorescent bulbs and the driver circuit are
>located
>in the case lid with the LCD? Since I put the 70CT lid with the LCD I
>thought was bad on the 50CT and found that it worked... and since the
>working 50CT LCD lid with its bulbs and circuit board doesn't want to work
>on the 70CT... doesn't this establish that the two lids with their LDS,
>bulbs, and circuits are okay, and that my problem on the 70CT is most
>likely
>with a bad MB component?
Yep, I remembered this all of ten milliseconds after pushing send...both
lids work on the 50, neither work on the 70. The 70 is therefore in some
small way, toast.
I'm running out of ideas. Any chips on the 70 mobo with craters in the lids?
I don't know where the video gets turned into pixels but I suspect that it's
on the mobo...maybe one of the on-board fuses is dead, could be feeding
power to the thing? Could you see any pixels in bright sunlight? At least
that will tell us if the video is still getting there...
Beil
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