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Apple IIc color PAL, would this work?

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there is a cable that comes out of the rgb port and delivers 2 composite leads. Would that work? On the NTSC machines, it works like a normal composite video signals.

I attached a photo

 

 

apple.jpg

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No, that wouldn’t work either. It only picks the composite and audio signal from the video connector.
There is a separate Apple //c PAL Modulator/ Adapter, Model No. A2M4023 that appears from time to time on eBay that would also produce color, besides the two options mentioned above.


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Does the Pal IIc even have color? I mean does it produce color internally, or is it done by external modulators, boxes, monitors...etc...?

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Does the Pal IIc even have color? I mean does it produce color internally, or is it done by external modulators, boxes, monitors...etc...?

It doesn’t. That’s why you need one of the accessories listed above.

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But it works with a color monitor of the era, right?

I mean it couldn't have been marketed as a B&W computer??

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The PAL Apple //c was usually sold with the monochrome 9” monitor. If you wanted to have color, you would buy either the PAL modulator or the Chat Mauve. The same applies to the Apple Europlus. It required a PAL card on slot 7 for color. In Europe Apples were not known for having color. This only changed with the introduction of the IIe.

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On 6/28/2021 at 8:52 PM, YannAros said:

Did anyone try the schematic available here https://kaput.retroarchive.org/appleii/ ?

 

I’d like to give it a try but would like a report before.

 

Short answer, this circuit doesn’t work BUT it is almost. Apparently only sync signal superposition is not working.

I will try to correct this and post a schematic if I succeed.

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4 minutes ago, YannAros said:

Short answer, this circuit doesn’t work BUT it is almost. Apparently only sync signal superposition is not working.

I will try to correct this and post a schematic if I succeed.

That would be awesome!

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Half success!

 

img_1416.jpg

Left : expectation, right : actual output

 

Sync was really one of the issue, but there are further ones creating heavy banding in luminance signal and preventing some transitions to occur correctly.

 

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