On Fri, 15 Dec 2000 [EMAIL PROTECTED] wrote:
>
> In a message dated 12/14/00 2:49:34 PM, [EMAIL PROTECTED] writes:
>
> >Anyway, my 2300's display is horribly garbled upon startup. When the happy
> >mac comes on I can see about 9 different copies of it. Essentially, the
> >grey portion of one image covers the happy mac of another and they all
> >end
> >up kind of ghosted.
>
> Ah, OK, got it. You've got a sync problem. Two possibles are a damaged
> logic board (most likely) or a damaged cable (doubtful as the 230 display
> shows the same problem). BEFORE surgery, tho, have you fully reset your
> PRAM? (Command-option-p-r on startup; let chime 3-4 times) Try setting the
> display characteristics (monitors CP) to basic greyscale and see what results
> if you can access it when in the dock.
This is what I figured was up here. I will give the control panels setting
a try as that can't hurt, as I have already reset the PRAM (via
cmd-opt-P-R and by removing the backup battery and letting it sit. . I
assume a physical problem, too, due to the drop. However, when I first
dropped it I promptly freaked out and turned it on and saw the garbled
screen. I then freaked out again and rebooted it, when I was presented
with a perfectly good screen. Nothing out of the ordinary. "GREAT!" I
said. "Maybe that screwy screen image was just a loose connector. Worse
comes to worse, I'll just reseat it when I get home." Well, when I got
home it was screwy again, and that really sucks. I figure that it might
be a hairline crack on the logic board that happened to make a clean
connection when I rebooted it after dropping it.
> Due to the drop, I'd have to assume a physical problem (tho check the above
> first). One possible is to dismantle the unit, pull the logic board and
> check to see if a piece of trash has shorted anything top/bottom of the logic
> (introductory work to becoming like MadDog....scary, isn't it??). Make sure
Well, I am already like Mad Dog in that introductory sense. I just don't
have the sick and perverted desire to create an entire army of patched up
Duos. All I want is my 2300 to be mint and my 230 to be cool. My 2300 is
currently in little pieces, Logic board removed, case stiffener removed,
Short of removing chips from the logic board, I couldn't take it apart any
more than I have now!
> you are in an anti-static environment!!! (get an anti-stat bag and use it as
> an anti-stat mat....DO NOT use aluminium foil!!! Makes nice big sparks when
> it shorts out the power supply!) Set the bare logic on the anti-stat mat,
> connect the HD and the display, and then carefully connect the AC adapter
> (make sure nothing shorts out...be VERY careful at this point). If it boots
> normally, you either had trash shorting out a chip or a PRAM problem (when
> you remove the logic, you disconnect the PRAM batt). If not, I'd say you
> have a bad logic. Let's hope for the former!
I will give this the old college try, but I have a feeling that it is a
lost cause. Will try spraying it down with the "Can O' Cold" as
recommended earlier, too.
> I'll play with the "stripe" problem later and see what I can find.
I think it is a cable problem, but I'm no expert.
> (Who will also get out his IC Master and see which chips are the VRAM chips.)
That would be helpful!
Tom
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