Classic ii battery negative pole

[Willj]

When removing the battery holder, the negative side via completely came out. On either side of the board there is no visible trace of where it goes to put a trace repair or wire. I assume it’s inside the board so i can’t do much with it. Is there a contact point somewhere on the board I can run a wire to will connect it?

 

[jajan547]

When removing the battery holder, the negative side via completely came out. On either side of the board there is no visible trace of where it goes to put a trace repair or wire. I assume it’s inside the board so i can’t do much with it. Is there a contact point somewhere on the board I can run a wire to will connect it?

Can you provide top and bottom photos?

 

[Willj]

Here are the images

 

[jajan547]

Personally I’d fill it with solder. Does it work just fine right now? Battery isn’t all that important on a classic ii so I wouldn’t worry about it too too much.

 

[Willj]

Don’t know. i Have a new holder to install and it won’t hold solder. I tried. I am sure negative has to go to ground somewhere why I asking about a wire run to another connecting point.

 

[jajan547]

Don’t know. i Have a new holder to install and it won’t hold solder. I tried. I am sure negative has to go to ground somewhere why I asking about a wire run to another connecting point.

I’ll look at the schematic

 

[jajan547]

Should be able to just run it to ground I’d say tap into a SCSI ground pin

 

[Willj]

So on the internal scsi connector says all odd pins are ground? Just want to confirm to be sure? Is there a closer location you would suggest so I not need to run a long wire on board underside?

 

[jajan547]

So on the internal scsi connector says all odd pins are ground? Just want to confirm to be sure? Is there a closer location you would suggest so I not need to run a long wire on board underside?

Usually bottom row of SCSI is ground, one sec

 

[Willj]

Got it. Easy enough. To the connector anchor point to ground.