Re: 9100 Video display

Thanks Andy,

Just to rig it up and see what's what I can use my 10" MTC9000 then
and use the syncs as they are since it's got the sync polarity switch
on it. Longer term that'll be a bit of a pain though so I guess I can
invert them. I had flicked through the service manual but it's a bit
vague in places and I wasn't sure if the video signals were TTL or
anything.

On the memory, it's already got 4MB of ram in it. Although I haven't
bothered to look yet I guess it's 4 x 1MB simms. Every other of the 8
slots is free. I'll see how I get on for now but yes, it may be worth
experimenting later to see if it can go up to 8MB :)

Don't suppose you or anyone else have a spare set of manuals available
for purchase? I do hate working off of computer screens!

Cheers,
Martin.

On 18 Feb 2008, at 16:48, Andy Welburn wrote:

> The video card can output B/W or color, this is set by the jumpers
> on the vidocard itself. Grab the service manual and look at the
> schem for the video card to work out what the jumpers should be (i
> haven't made a note of this unfortunately) but its obvious from the
> schems.
>
> I've seen docs that say the video is 'IBM CGA compatible'... it is
> true that it is low-res 15hz, it has seperate syncs, and they're
> inverted, so invert them then combine them in order to run it on an
> arcade monitor...
>
> I have tested working 30pin 1MB RAM simms if you want to beef yours
> up, one assumes you can give it 8mb ram with the right dip
> settings... 9100's only have 4 slots, and 4mb max ram.
>
> Andy
>
> ----- Original Message ----- From: <martin@guddler.co.uk>
> To: "Technical Tools Mail List" <techtoolslist@flippers.com>
> Sent: Saturday, February 16, 2008 1:11 AM
> Subject: [Techtoolslist] 9100 Video display
>
>
>> Hi,
>>
>> Can anyone give me a clue on how to connect a monitor up to the
>> 9100FT please? I have a B/W composite video monitor available to me
>> (Tandy TRS-80 monitor), or of course a standard arcade monitor (10"
>> MTC9000). Is it a simple case of wiring up the RGB and sync pins
>> from the 9 pin d connector on the back to the arcade monitor or is
>> there more to it than that?
>>
>> I don't know if the video card in this unit is B/W or Colour, or if
>> indeed there is a difference. Do they all do both?
>>
>> And does anyone have any documentation specifically on the FT? Is
>> there anything that says what the specific differences are beyond
>> the HD floppy and the faster processor? There's 8 memory sockets
>> for instance. Is that normal on all 9100's?
>>
>> Thanks,
>> Martin.
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>
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Received on Mon Feb 18 12:34:39 2008