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| Amiga Hardware Issues and discussion This forum is dedicated to the discussion and resolution of issues related to Classic and Next Generation Amiga hardware. Got a problem with a piece of hardware? Click to speak. |
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09-30-2012, 05:20 AM
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Merely Curious
Join Date: Feb 2007
Location: Australia
Posts: 17
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A1200 to 1084S monitor.
Another issue has reared it's head.
I have an Amiga 1200 with a built in CF hard drive. I also just acquired a 1084s monitor that came with an Amiga 500. Is the RGB video cable that comes with the A500 compatible with the A1200 also? My 1084s has the round DIN connector on it's end with I believe 6 pins. I read somewhere about an A1200 one having 9 pins. The issue is when connecting the A500 to the 1084s colors are fine, image is fine, when connecting the 1200 there is no red in the image and the image appears a bit more dimmed. Is this a cable issue, or due to the 1200 output frequency?
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Amiga 500, 512k trapdoor expansion. She\'s basic but she\'s fun! |
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09-30-2012, 09:29 PM
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Merely Curious
Join Date: Feb 2007
Location: Australia
Posts: 17
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Re: A1200 to 1084S monitor.
Due to testing the A500 drive and ram expansion issue I worked out the cause of this issue. It is a loose RGB connection inside the monitor.
The A500 started to not show red as well, but reds showing on composite fine. I happened to wiggle the RGB connector whilst the A500 was on and the reds appeared. Looks like I will have to open up the 1084s to see what is going on there.
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Amiga 500, 512k trapdoor expansion. She\'s basic but she\'s fun! |
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09-30-2012, 11:04 PM
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Merely Curious
Join Date: Feb 2007
Location: Australia
Posts: 17
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Re: A1200 to 1084S monitor.
Opened it up and pin 4 on that RGB connector is lifted from the PCB. The round disc that sits on the PCB is lifted also. Pin 4 corresponds with red video on the pinout for the 1084s.
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Amiga 500, 512k trapdoor expansion. She\'s basic but she\'s fun! |
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10-01-2012, 12:22 AM
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Merely Curious
Join Date: Feb 2007
Location: Australia
Posts: 17
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Re: A1200 to 1084S monitor.
I ran a trace wire from pin 4 to one of the destination pins and red is back again. All fixed.
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Amiga 500, 512k trapdoor expansion. She\'s basic but she\'s fun! Last edited by knight76; 10-01-2012 at 05:52 PM.. |
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10-01-2012, 01:47 AM
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#6 | |||||||||
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Beginner
Join Date: Apr 2012
Location: Belgium
Posts: 32
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Re: A1200 to 1084S monitor.
Quote:
Refresh rate: no |
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10-01-2012, 01:52 AM
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#7 | ||||||||
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Merely Curious
Join Date: Feb 2007
Location: Australia
Posts: 17
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Re: A1200 to 1084S monitor.
I dont believe so.
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Amiga 500, 512k trapdoor expansion. She\'s basic but she\'s fun! |
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10-01-2012, 04:36 PM
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#8 | ||||||||
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VIP / Donor
Join Date: Mar 2003
Location: Boston, MA, United States
Posts: 4,988
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Re: A1200 to 1084S monitor.
Nice repair work. Glad you're up and running!
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10-01-2012, 05:53 PM
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Merely Curious
Join Date: Feb 2007
Location: Australia
Posts: 17
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Re: A1200 to 1084S monitor.
Quote:
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Amiga 500, 512k trapdoor expansion. She\'s basic but she\'s fun! |
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