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ralphb

Sony PVM-20M2/4E and TI 99?

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My new Sony already has a very nice composite NTSC picture (shown too bright here).

 

sony-composite.thumb.jpg.8f0138b6784eacffce849cc34c0622b4.jpg

 

For component, though, the above cable I ordered doesn't work yet.  I tried both the internal and the external component interface, but I guess the pin layout of the TI 99 differs from whatever the seller used.  Also, the cable has two connectors labeled H and V, but I need Sync and Audio.  Anyway, I've asked him about the pin layout of the cable, I hope it's compatible.

 

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Component cable don't have an external sync.

But, I don't know if the cable outputs are shared. Like that cable is for component AND RGB.

Those monitors have a setting for int. or ext. sync. Check that setting.

 

 

If the Ti99 does RGB and thats a RGB cable - connect the H line to the Sync on the PVM.

 

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Thanks for the suggestions, H454.  It is indeed an RGB cable, which cannot be used for the TI 99.  He also sent me his (or her) wiring, and they connected R-Y of the TI to GND, which doesn't have a connector at all.

 

But I asked the seller if they would do a custom cable for me, since the RGB cable also seems custom.

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https://coolnovelties.co.uk/coolnovelties/texas-instruments-ti-994a/95-texas-instruments-ti-99-4a-component-video-cable-euro-models.html
what about this one?

 

below shop used to sell a component cable for the pal ti-99, but they removed it from their online store due to complaints because consumers thought it is a YUV cable working with every tv in the world. you might still get one, if you send a mail and tell them you are aware of potential compatibility issues.

https://www.retrocomputershack.com/RCS-Website/Products-Page/index.html

component-cable.jpg

 

In the end there is not much magic inside the cable, no diodes or logic, simple 6 pin to 5 indiviual plugs.

 

Your new monitor (yes!) has SCART input as well or only BNC? There is the italian mini PAL RGB device you could use for RGB.

  • Thanks 1

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Thanks Klaus, I asked Ian if he can build one for me.

 

Technically, I should be able to build one myself, but I doubt it'll look as tidy as that one. 😀

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Interesting!  Ian replied that there's a reason he doesn't do component cables for the TI:

Quote

[...] the video signals are not standard Component video [...] if your lucky enough to actually get a picture, the colours will be wrong

Do you notice that the Sony's picture is off-color, Klaus?

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1 hour ago, ralphb said:

Interesting!  Ian replied that there's a reason he doesn't do component cables for the TI:

Do you notice that the Sony's picture is off-color, Klaus?

I am also tempted... I have a LCD TV that accepts component...

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