On Jun 26, 2010, at 5:23 PM, Jim Scott wrote:
I don't have another machine to test the display in so I'll have
to put in the new display and I guess kinda hope it's OK, can the
display work awhile and then crap out due to a capacitor problem?
Also can the Apple ASD pickup this defect?
Both ASD (in OS mode) and Apple Hardware Test (should be on the
install DVD) are pretty good about catching problems with the video
circuitry. However, I just processed an iMac G5 17" ALS which
passed both ASD and AHT tests (4 in all) without an error, yet
sports one popped/leaking capacitor on the logic board and throws
occasional artifacts on the LCD. It also refuses to boot to the
desktop and freezes right at the transition from the grey screen to
the blue screen. Yet it will boot to the desktop in Safe Mode,
which has lower demands on the video circuitry. It's sitting on a
shelf awaiting a new batch of capacitors. FWIW, this iMac also
chimes on startup, which means it passes POST. So it's worth
replacing the 29 caps on the logic board to save it (I hope).
Jim
I haven't seen any of these caps, are they big enough for a 65 year
old to see? I can solder OK if I can see the joint site clearly,
Really 29 of them? I have a TiBook board that I know the burned caps
but I can't see that small to fix it plus it's a 400 MHz so who
cares? The machine in question is running a 23" HP monitor I put for
the kids about 8 mos ago and it works great so is that an indication
the boards are OK?
JOHN CARMONNE
Yorba Linda USA
From TiBook 800
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