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IIsi with 17" Studio Display Question

pec-memphis

New member
I've got a IIsi with a 12 Apple Monitor that is getting too dim to use and I've got an application which will run only on a 68k with 32-bit clean turned off.

I have been given a 17" Sutdio Display, any suggestions on what is needed to connect the 17" display to the IIsi?

Thanks

 

LCGuy

LC Doctor/Hot Rodder
What Studio Display is it? Is it a CRT or an LCD?

If its an LCD, you're out of luck, they all use ADC, which is impossible to use on anything pre-PCI. If its a CRT, you might be in luck. If its the later one with the completely see-through rear case, you're still out of luck, as they also use ADC. If its the translucent blue and white or graphite one, you are in luck - they use an SVGA connector, and can be connected to your IIsi with a Mac -> VGA adaptor.

 

slimac55

Well-known member
If its an LCD, you're out of luck, they all use ADC, which is impossible to use on anything pre-PCI. If its a CRT, you might be in luck. If its the later one with the completely see-through rear case, you're still out of luck, as they also use ADC.
Really? Not even with a ADC to VGA adapter?

 

IIsi

Well-known member
This is not necessarily true....ADC to DVI adaptors exist, and DVI to VGA adaptors exist, and I have gotten VGA LCD panels running fine on my IIsi with RBV video, including my old Dell 24" 2407WFP. And yes thats a crap lode of adaptors, but it works. You need the following to make this happen:

ADC to DVI adaptor (not sure who makes em)

DVI to VGA adaptor (free with every video card!)

VGA to DB15 Apple (Griffin makes these among others)

...and lastly, the special IIsi/IIci Synch on green adaptor! Check

online or I may have extras...

Attach all these together and BAM there u go. Albeit at 640x480 unless you have a NUBUS video card in your IIsi.

 

Anonymous Freak

Well-known member
This is not necessarily true....ADC to DVI adaptors exist, and DVI to VGA adaptors exist, and I have gotten VGA LCD panels running fine on my IIsi with RBV video, including my old Dell 24" 2407WFP. And yes thats a crap lode of adaptors, but it works. You need the following to make this happen:
ADC to DVI adaptor (not sure who makes em)

DVI to VGA adaptor (free with every video card!)

VGA to DB15 Apple (Griffin makes these among others)

...and lastly, the special IIsi/IIci Synch on green adaptor! Check

online or I may have extras...

Attach all these together and BAM there u go. Albeit at 640x480 unless you have a NUBUS video card in your IIsi.
Except I don't believe any of the ADC to DVI adapters pass the analog signal through. It may be possible to hack your own, though.

So the problem lies in the fact that ADC was Apple's custom adapter that was really a DVI-I plug plus USB and power. DVI-I, as opposed to DVI-D, carries both the digital signal that is usually associated with DVI, as well as the stock VGA analog signal.

Every single ADC to DVI adapter I've ever seen specifies that it only works with the LCD displays, which would mean that it's only passing through the digital signal, not the analog signal. (The CRT ADC display is the only one that used an analog signal.)

Again, if you're adventurous, you may be able to hack an ADC-DVI adapter so that you're only using it for power, and manually re-wire it so that you get the analog video signal out of it, though.

But I don't know if I'd be willing to try to do that...

 
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