Will Apple II gs monitor work with LC?

[habibrobert]

Hello,

I'm wondering if the apple II gs monitor will work with the macintosh LC or would I have to modify its connections to make it work? Also, does anyone know what the model number of the monitor that originally came with the LC is?

Thanks!!

 

[JRL]

Nah, the typical IIgs monitor is a completely different interface from the standard DB-15 on the LC. Most LCs came with the Apple 12" RGB Monitor as standard.

Quite honestly it wouldn't be worth the effort to modify your IIGS monitor since there are other alternatives. I would suggest getting a Mac-VGA adapter and using a standard PC monitor.

 

[Macdrone]

A IIgs has a db15 connection and a RCA type jack if I'm not mistaken. Would have to know which monitor he has to know if it will work on an LC. My IIgs has an RGB monitor with D 15 connector.

 

[JRL]

Damn... my bad. I totally forgot that the AppleColor RGB monitor had a DB-15 connector.

If you have the AppleColor high-res RGB monitor you should be fine with the LC as long as you have the appropriate DB-15 cable. Though I'm not sure if said RGB monitor's resolutions would play nice with the LC.

 

[LCGuy]

The AppleColor High Resolution Display is a Mac monitor. Designed only for the Mac. So long as you have the correct DB-15 to DB-15 cable, it will plug straight into any LC.

The AppleColor RGB Monitor, on the other hand, is a IIGS monitor. As far as I'm aware this monitor was never marketed as a Mac monitor, and is not electrically compatible with the Mac's video output. Furthermore, even if it was the resolution would be way too low to use on a Mac.

 

[ClassicHasClass]

LCGuy's warning needs to be a little more strongly stated. "Not electrically compatible" == "risk of damage to monitor and/or LC". The IIgs monitor only works with the IIgs, and that's *if* you can find the DB-15 cable, which was detachable on that model.

 

[Dog Cow]

I've tried both: the 12" Macintosh monitor on the IIgs and the IIgs AppleColor on the LC. You get funny video, that's for sure. It's almost recognizable but it's so distorted.

It's because the vertical scan rate isn't the same Hz, so computer and monitor aren't talking on the same frequency.

No risk of damage, I think.

 

[Gorgonops]

No risk of damage, I think.

Actually, feeding old monitors the wrong frequency for an extended period of time can damage both the horizontal output transistor and the flyback. The worst case is actually if you see a distorted picture instead of "nothing"; that means the monitor "sees something" and is pushing itself way out of whack in a desperate attempt to sync with it.

If the monitor makes an audible squealing noise then you're *really* asking for it. I've never actually managed to kill a monitor by overdriving it but I have heard some older multisyncs make some really pathetic/scary noises, so it's not like I haven't tried.

So, short answer: No, don't bother even trying your IIgs monitor on a Mac.

 

[Dog Cow]

Wow. Good thing I only had them powered on for just a few moments! Thanks for the clarification.

 

[James1095]

Just because something can be physically plugged in doesn't mean that it will work.

The IIgs monitor uses NTSC scan rates, 15 kHz horizontal and 60Hz vertical. The lowest resolution the LC supports is around 24 kHz horizontal, it's a completely different format.

 

[onlyonemac]

I think you know your answer by now-IT WON'T!!!

Okay, give it up. If I were a moderator, I would have locked this for the safety of your LC/Monitor!

 

[LCGuy]

And if I were a moderator, I'd give you a little reminder that "keep it civil" extends beyond the Lounge.

Actually no wait, I'm an admin, so consider this a reminder.

 

[onlyonemac]

Was I uncivil?