6 Feb
2008
6 Feb
'08
7:25 p.m.
Does anyone have the schematics for the Whitechapel
Workstation. I'm trying to 'rescue' a WCW that has
the dreaded leaked battery.
I have scheamtisc for the MG1 -- the whole thing including the power
controller board, RAM expansion, IBM backplane and so on. I don;t know
how similar your machine is to this, though.
Its not made too much mess, but there is quite a bit
of crystalised battery fluid mainly on the terminals
of components directly beneath the battery.
The WCW wont boot, although the disk drive and fans
spin up OK, the front on/off button doesnt function.
Hmmm. This, alas sounds as thought it might be very different to the MG1.
The MG1 won't do anything with a flat battery -- it needs that battery
to energize the pwoer-on relay.
Have you checked the power supply outputs with a voltmeter? Mind you, if
the drives are spinning up I would assume the PSU ios basically working.
Is there a front panel LED? On the MG1 there's one between the 2 DE9
connecotrs for the keyboard and mouse. Does it flash any kind of error
code?
Although I can hear a faint click on the PSU
'controller' from the small relay.
Any tips on how to clean this and/or anyone with a
spare mainboard (too much to hope for but you never
know) - :)
You want a chemically weak acid (the leakinge is alkaline, basically (!)
potassium hydroxide, although it's probably picked up carbon dioxide and
become potassium caronate now. I normally used citric acid, availabe from
come pharmacies over here, and also I believe from the home wine/beer
making shops.
I am still wondering where that relay is getting power from, though.
-tony