Macintosh II no video output

[wagbox]

I'm using a Macintosh II with a Multiscan 17 monitor. The cable is a VGA with a unimac db15 adapter to connect it to the Mac II. I am not getting any signal. Is this monitor too new, or is the video card dead?

 

[croissantking]

Probably a sync issue. The video card that shipped with the Macintosh II (The Toby card) doesn't support separate sync, and your CRT is probably expecting it. So either try a newer video card in the Macintosh II or use a screen that can accept composite sync or sync on green.

 

[wagbox]

Probably a sync issue. The video card that shipped with the Macintosh II (The Toby card) doesn't support separate sync, and your CRT is probably expecting it. So either try a newer video card in the Macintosh II or use a screen that can accept composite sync or sync on green.

Yes, this is correct. I found this answer in your own thread of all places!

Apple Multiscan 15AV - can't get it to work with a IIsi/IIci

For anyone else who might encounter this issue

 

[croissantking]

Yes, this is correct. I found this answer in your own thread of all places!

I had really good input on that thread from some of the most knowledgeable users here.

I ended up acquiring a Macintosh Video Card 670 (8•24 unaccelerated card) which does output separate sync and works fine with my 15AV. They’re fairly plentiful and affordable when they come up.

 

[wagbox]

I had really good input on that thread from some of the most knowledgeable users here.

I ended up acquiring a Macintosh Video Card 670 (8•24 unaccelerated card) which does output separate sync and works fine with my 15AV. They’re fairly plentiful and affordable when they come up.

Thank you for the tip! I’ll keep my eye out for one.