Date: Tue, 8 Mar 2005 07:40:16 -0800
From: <[EMAIL PROTECTED]>
Subject: RE: [LIB] Dead L110 - now working!
Everyone, my L100 is now working fine. Last night I followed the
procedures in section 4 of the manual and took everything apart again.
While I had the MB (mother board) in my hand, I found two fuses that are
shown on the board layout from page 204 of the manual. Parts labeled
"A", "B", and "C" are fuses. "A" is so small I can't tell anything about
it. "B" has markings "SOC 63V T 3.15A". I interpret this to be a 63V,
3.15A fuse. "C" has the same markings except it is a 5A fuse.
Matt, I didn't look at the items you point out with the X660 and X650,
but I suspect they are capacitors.
While I had it all open, I put in the jumper to change the speed to
266MHz - for those of you who wish to do this, you can just use solder
itself as the jumper - it bridges those short connections just fine.
The other good news, once I carefully re-assembled everything, the Libby
booted up without any problem! It is also faster now that I over clocked
it. I just had it running a short time, but it works fine.
After re-booting, it told me my Real Time Clock battery was dead - which
I knew, but now I know how easy it is to replace. Just have to find one.
Matt, I would recommend taking everything apart again, following the
procedures carefully, and re-assembling it to see if you may also just
have a connector not seated properly somehow.
Dick
> See if you
> can identify where on the MB the "fuses" are. What is the identifier
> for the fuse? This should tell us if it really is a fuse or not.
I don't know if there's any way to identify the components that I'm
looking at as fuses... but they sure look like the ones in my 70. Guess
I need to open it up again and compare them side by side.
What I'm looking at are 2 rather large components. They have
cylindrical metal caps at either end (kind of gold/brassy in color to my
eyes). And square whitish/grayish bodies that look like porcelain.
They do >look< like fuses.
You can see them after taking the heatsink off. In the manual on page
204 in the back view of the board, one is just to the left of a
component marked K (K being to the left of the CPU D) which seems to be
the controller. To the left of that fuse-like component there's the
lettering 'X660'. I see that on my MB too.
The 2nd is easy enough to spot just to the 'north' of component J (Power
supply microprocessor) that is lettered as X650 in the manual.
Guess I'll have to pull both my 100 and 70 apart. The 70 to compare
what the known fuse looks like on the 70 MB to what I'm seeing on the
110 MB.
The 100 to measure the resistance of the suspected fuses on the 100 MB,
and compare that reading to the open circuited ones I'm seeing on the
110 MB.
I'm guessing I should see 1 ohm for one, and 2 ohms for the other by the
lettering on the components.
But first... have you tried Neil's test that Brian Mueller just wrote
worked for him... hooking up an external monitor and seeing if that
gets you into BIOS/CMOS setup. And then tweaking the display option to
'Simultaneous'. Brian said he had no red Toshiba splash screen, and
had
symptoms that sound like ours.
Matt
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