Steven Hirsch

Does anyone know what monitors the AE Colorlink is intended to work with? It
has two outputs, one came with an adapter for an IBM CGA/EGA style DB9
connector and the second header on the card is intended for an "Apple" monitor
- the manual is no more explicit than that! I do not have the adapter for the
15-pin, but sat down and built what I believe is the correct setup to bring
out to a DB15F. I cannot get display on either output, unfortunately.

Have tried a CGA adapter normally used with a Tandy CoCo (9-pin plug) and the
Highway converter used with a IIgs (15-pin, with external 12V supply to switch
the adapter into external video mode).

Looking at the circuitry, I'm thinking the 9-pin output is TTL level and the
15-pin is analog video (uses a couple of driver transistors). It's possible
that I did not figure the pinout properly, I suppose.

If anyone with a ColorLink has time to take an ohmmeter to the 15-pin cable,
I'd like to verify the wiring.

Wayne Stewart

I use mine with a IIgs monitor
The pinout of the cable I'm using is

9 1
10 5
11 3
12 4
13 2
14 6
15 7
nc 8

Steven Hirsch

On 11/06/2011 02:14 AM, Wayne Stewart wrote:
> I use mine with a IIgs monitor
> The pinout of the cable I'm using is
>
> 9 1
> 10 5
> 11 3
> 12 4
> 13 2
> 14 6
> 15 7
> nc 8

Thanks, Wayne. Just for clarification:

- I assume that's a view of the 16-pin header on the ColorLink, and the
numbers indicate where they connect to the DB15?

- If so, is this viewed from the top or bottom of the board?

Steve

Steven Hirsch

On 11/06/2011 09:27 AM, Steven Hirsch wrote:
> On 11/06/2011 02:14 AM, Wayne Stewart wrote:
>> I use mine with a IIgs monitor
>> The pinout of the cable I'm using is
>>
>> 9 1
>> 10 5
>> 11 3
>> 12 4
>> 13 2
>> 14 6
>> 15 7
>> nc 8
>
> Thanks, Wayne. Just for clarification:
>
> - I assume that's a view of the 16-pin header on the ColorLink, and the
> numbers indicate where they connect to the DB15?
>
> - If so, is this viewed from the top or bottom of the board?

Nevermind... Took an educated guess and determined it's a view from the
bottom of board (i.e. looking at the 16-pin female on the cable.

I only needed to swap pins 2 and 5 to get it right.

For future reference:

- The Digital Prism manual has the functions of SW3 and 4 interchanged. Sync
polarity is actually on 4 - at least on my board.

- The "Apple" (DB15) output is analog RGB with composite sync (+/- selected by
SW4 on the card).

- The "IBM" (DB9) output is digital (TTL-level) with separate H+V sync. It's
intended, I think, for a CGA or EGA monitor but would not work with my EGA
converter (normally connected to a C= 128).

- If you want to use a SCART-input monitor or converter with the DB15, you'll
need to provide +12v on pin 8 to switch it into RGB mode. I used a little
"hook" clip to grab it right next to the power supply connector on the
motherboard.

Steve

Wayne Stewart

I should have been clearer but it was late in the day.
I took that from the cable itself looking at the end of the cable with
9 in the upper left corner

On Nov 6, 6:27*am, Steven Hirsch <snhir...@gmail.com> wrote:
> On 11/06/2011 02:14 AM, Wayne Stewart wrote:
>
> > I use mine with a IIgs monitor
> > The pinout of the cable I'm using is
>
> > 9 * *1
> > 10 * 5
> > 11 * 3
> > 12 * 4
> > 13 * 2
> > 14 * 6
> > 15 * 7
> > nc * 8
>
> Thanks, Wayne. *Just for clarification:
>
> - I assume that's a view of the 16-pin header on the ColorLink, and the
> numbers indicate where they connect to the DB15?
>
> - If so, is this viewed from the top or bottom of the board?
>
> Steve

pitz

You have saved me a number of hours. I have a Color Link card, and have used it with a standard IIgs RGB monitor, and a CGA monitor. I also briefly tried (unsuccessfully, of course) to hook it up to the SCART input of my Samsung monitor using Roger's SCART cable.

From the pinout documents for the IIgs' DB-15 video connector, the Color Link's DB-15 video connector, and from Roger's web site, I understood I was missing a +12v connection somewhere (provided by a IIgs, but not by the Color Link). Just didn't have the time to wire things up and experiment (this was a couple of weeks ago).

Being a noob at reading schematics, where exactly in the motherboard did you hook the clip to get +12v?

Steven Hirsch

On 11/08/2011 01:13 PM, pitz wrote:
> You have saved me a number of hours. I have a Color Link card, and have
> used it with a standard IIgs RGB monitor, and a CGA monitor. I also
> briefly tried (unsuccessfully, of course) to hook it up to the SCART input
> of my Samsung monitor using Roger's SCART cable.
>
> From the pinout documents for the IIgs' DB-15 video connector, the Color
> Link's DB-15 video connector, and from Roger's web site, I understood I was
> missing a +12v connection somewhere (provided by a IIgs, but not by the
> Color Link). Just didn't have the time to wire things up and experiment
> (this was a couple of weeks ago).
>
> Being a noob at reading schematics, where exactly in the motherboard did
> you hook the clip to get +12v?

Hi, Peter.

Find electrolytic cap C12 in the left-rear corner of the motherboard. The
left side of that component is at +12V. I just used a little "hook" type test
clip (should be available at Radio Shack).

Let me know how it works out for you.

Steve

Michael J. Mahon

Steven Hirsch <snhirsch@gmail.com> wrote:
> On 11/08/2011 01:13 PM, pitz wrote:
>> You have saved me a number of hours. I have a Color Link card, and have
>> used it with a standard IIgs RGB monitor, and a CGA monitor. I also
>> briefly tried (unsuccessfully, of course) to hook it up to the SCART input
>> of my Samsung monitor using Roger's SCART cable.
>>
>> From the pinout documents for the IIgs' DB-15 video connector, the Color
>> Link's DB-15 video connector, and from Roger's web site, I understood I was
>> missing a +12v connection somewhere (provided by a IIgs, but not by the
>> Color Link). Just didn't have the time to wire things up and experiment
>> (this was a couple of weeks ago).
>>
>> Being a noob at reading schematics, where exactly in the motherboard did
>> you hook the clip to get +12v?
>
> Hi, Peter.
>
> Find electrolytic cap C12 in the left-rear corner of the motherboard.
> The left side of that component is at +12V. I just used a little "hook"
> type test clip (should be available at Radio Shack).
>
> Let me know how it works out for you.
>
> Steve

+12v is also available at the RF modulator header, if your machine has one
(near slot 7).

-michael - NadaNet 3.1 and AppleCrate II: http://home.comcast.net/~mjmahon