Battery bomb in my IIgs

[LaPorta]

So, about 10 years ago, I found that the battery in my IIgs went kablooy. I never had time then, but now I can actually look into the damage. The thing caused very little visible damage, but I assume there is more. You can see the nasty splatter it made on the shielding. Suggestions on where to go here?

 

[PB145B]

It looks like it has a very good chance of being salvageable to me. Does the machine work?

 

[LaPorta]

To my recollection, no. When I tried to power it up, the power light flickers for a split second, then shuts off and nothing happens.

 

[PB145B]

Ah, I see. I think a good wash with some distilled water and a toothbrush would be a good start. 

 

[LaPorta]

I will have to remove the board and look underneath. Totally new to IIgs architecture: I see a ton of plastic clips holding it down, but what side of the board comes up first, etc?

 

[maceffects]

It’s really easy to remove the board form the lower case once all other case parts removed. I just use my fingers to remove about 3 tabs at the front and work my way back while applying upward pressure.  Using some isopropyl alcohol should clean up a lot of that. At worst you’ll need one chip and one capacitor, but I don’t even that it is required.