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Offline thedocbwarrenTopic starter

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Commodor 1950 and A1200 help
« on: July 12, 2011, 04:07:03 AM »
I just picked up an 1950 monitor.  I plugged it in tot he Amiga 1200 with a 23pin to VGA adapter and I get no picture.  In fact something is up with the system when it's plugged in.  The machine appears not to boot.  I can't tell what is displayed since I can't see anything.  I can't figure out how to get any kind of display on the monitor.

Also, I have no idea how to boot the Amiga from a floppy, it's always booting from the CF.  I figured if I put a kickstart disk in it might display an default screen res just in case it's a bad monitor mode on  my workbench.

I very new to Amiga and I really need some help on what to do.
 

Offline NovaCoder

Re: Commodor 1950 and A1200 help
« Reply #1 on: July 12, 2011, 04:32:59 AM »
Quote from: thedocbwarren;649137
I just picked up an 1950 monitor.  I plugged it in tot he Amiga 1200 with a 23pin to VGA adapter and I get no picture.  In fact something is up with the system when it's plugged in.  The machine appears not to boot.  I can't tell what is displayed since I can't see anything.  I can't figure out how to get any kind of display on the monitor.

Also, I have no idea how to boot the Amiga from a floppy, it's always booting from the CF.  I figured if I put a kickstart disk in it might display an default screen res just in case it's a bad monitor mode on  my workbench.

I very new to Amiga and I really need some help on what to do.


Run a composite cable to your nearest TV and see what screen mode it's booting into and take it from there...
Life begins at 100 MIPS!


Nice Ports on AmiNet!
 

Offline thedocbwarrenTopic starter

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Re: Commodor 1950 and A1200 help
« Reply #2 on: July 12, 2011, 04:38:28 AM »
Wow, it's giving a nasty red screen crash.  Can't read the error message 8000 maybe?
 

Offline thedocbwarrenTopic starter

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Re: Commodor 1950 and A1200 help
« Reply #3 on: July 12, 2011, 04:43:46 AM »
Used this method to get to just the default monitor device and I get no screen.  I even tried my Atari ST on the monitor with no screen as well.  Something tells me the monitor is dead.  I checked the TTL/analogue switch (set to analogue.)  and all the other knobs so I'm thinking it's a motor problem.

Bugger....  I don't seem to have luck getting a screen to work on me miggy.
 

Offline xzerix

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Re: Commodor 1950 and A1200 help
« Reply #4 on: July 12, 2011, 12:40:32 PM »
What's boot priority on the partitions on the CF? If they're all higher than the floppy (5 or 10, I think -  I can't remember no miggy in the office) then It won't boot from the floppy.
 
Try holding down both mouse buttons when booting, and selecting DF0 as the boot device - you should be able to boot from floppy that way (providing the disk is bootable..) :)
Amiga A1200: 68030 50Mhz/8Mb Fast/4Gb CF
Amiga A600HD: No HD :confused:
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Offline TjLaZer

Re: Commodor 1950 and A1200 help
« Reply #5 on: July 12, 2011, 04:45:46 PM »
Unplug the CF card if you can until you resolve the screen issues.  Or you can hold down both mouse buttons whilst turning on the A1200 for it to end the startup menu.

No kickstart disk is needed on the 1200 as it has kickstart ROMs, only the 1000 needs kickstart disks.
Going Bananas over AMIGAs since 1987...

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Offline mechy

Re: Commodor 1950 and A1200 help
« Reply #6 on: July 13, 2011, 02:57:06 AM »
Quote from: thedocbwarren;649137
I just picked up an 1950 monitor.  I plugged it in tot he Amiga 1200 with a 23pin to VGA adapter and I get no picture.  In fact something is up with the system when it's plugged in.  The machine appears not to boot.  I can't tell what is displayed since I can't see anything.  I can't figure out how to get any kind of display on the monitor.

Also, I have no idea how to boot the Amiga from a floppy, it's always booting from the CF.  I figured if I put a kickstart disk in it might display an default screen res just in case it's a bad monitor mode on  my workbench.

I very new to Amiga and I really need some help on what to do.

you don't need to unplug your cf or boot from floppy, the C= 1950 is a multisync and displays 15khz and up video so should even display the guru message if its working.. are you using a silver 23 to 15pin C= adapter?

You might to read about known problems with this monitor here:
http://www.amiga-hardware.com/showhardware.cgi?HARDID=856

Be careful if you go inside the monitor there are LETHAL voltages in there that could hurt/kill you. Don't do it if you do not know what you are doing.:confused:

Mech
 

Offline thedocbwarrenTopic starter

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Re: Commodor 1950 and A1200 help
« Reply #7 on: July 13, 2011, 04:15:32 AM »
I think you might be right about the adapter.  I have the amigakit 23pin to vga 15 pin adapter but I'm thinking the pinout is wrong.  Where do I get the right adapter?

Also, what would cause a guru message only when the monitor is plugged in?
 

Offline thedocbwarrenTopic starter

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Re: Commodor 1950 and A1200 help
« Reply #8 on: July 13, 2011, 04:21:09 AM »
I could not perform any of the fixes mentioned on that sight.  The picture never displays on any input.  I think the adapter could be the wrong one I support.  I did plug my Atari ST *using a vga adapter on the Atari) and got a blank picture as well, however, could be the wrong pinout again.

I do appreciate all the help.