LaserDisc Database
https://forum.lddb.com/

AHD
https://forum.lddb.com/viewtopic.php?f=17&t=8589
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Author:  admin [ 14 Nov 2021, 18:40 ]
Post subject:  Re: AHD

admin wrote:
Could only find one picture online.


Another mention here:

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Julien

Author:  admin [ 12 Jan 2022, 04:39 ]
Post subject:  Re: AHD

admin wrote:
Could only find one picture online.
Attachment:
AD-7000.jpg


Finally one showed up for sale and I used these pics.

Victor/JVC AD-7000

Image
Image

Didn't know there were so many connectors on the back!

Julien

Author:  takeshi666 [ 12 Jan 2022, 07:25 ]
Post subject:  Re: AHD

A SCART lead on a Japanese device!? What will they think of next! :crazy:

Author:  admin [ 12 Jan 2022, 07:35 ]
Post subject:  Re: AHD

takeshi666 wrote:
A SCART lead on a Japanese device!? What will they think of next! :crazy:


Have you seen the weird GEN-LOCK one?

Was it designed/intended for professionals to use in Karaoke systems maybe?

Julien

Author:  takeshi666 [ 12 Jan 2022, 11:13 ]
Post subject:  Re: AHD

Could be! Seems to have way more pins than the coinbox connectors I've seen.

Author:  signofzeta [ 12 Jan 2022, 13:21 ]
Post subject:  Re: AHD

It’s not SCART, it’s RGB-21. And yeah, its obviously pro equipment meant for some kind of live multimedia thing.

Author:  admin [ 13 Jan 2022, 09:28 ]
Post subject:  Re: AHD

signofzeta wrote:
It’s not SCART, it’s RGB-21. And yeah, its obviously pro equipment meant for some kind of live multimedia thing.


I learn new things every day, thanks!

https://www.msx.org/wiki/RGB21_connector

Julien

Author:  teddanson [ 13 Jan 2022, 10:37 ]
Post subject:  Re: AHD

admin wrote:
signofzeta wrote:
It’s not SCART, it’s RGB-21. And yeah, its obviously pro equipment meant for some kind of live multimedia thing.


I learn new things every day, thanks!

https://www.msx.org/wiki/RGB21_connector

Julien


The Framemeister uses this for it's SCART adapter. It's wired up for RGB21 and not Euro SCART so you have to buy an adapter (that's what I did when I owned one) else if you connect a Euro SCART device to it and use RGB21 it won't end well.

Author:  admin [ 14 Jan 2022, 03:50 ]
Post subject:  Re: AHD

And now I keep finding more Japanese devices with this "RGB21" or "RGB Multi":

Panasonic TU-MT2000
Image

Fujitsu TXR-21
Image

And of course.... some LD Players!

Philips PLD600WS
Image

Julien

Author:  signofzeta [ 14 Jan 2022, 05:09 ]
Post subject:  Re: AHD

It was super common in the 80s and 90s. Since most of those monitors are junked now you don’t see it anymore.

It was replaced by the 15 pin VGA d-sub and/or D-Terminal.

That’s the first blue one I’ve ever seen though. :)

Author:  reelyinteresting [ 29 Jan 2022, 04:40 ]
Post subject:  Re: AHD

There is an AHD decoder available on Yahoo Auctions with a starting bid at ¥30,000... I will not link to it, but I'm mentioning this since the seller is a notorious flipper (jun6462000) who purchased this from the original owner on Mercari less than a month ago. Included disc and decoder S/N matches up. He negotiated with the seller from something like ¥7,000 down to ¥4,800 ( https://jp.mercari.com/item/m48692374583 ). In the Mercari comment communication, he claims that he has a VHD player. He is now trying to pull a high profit on YA! claiming that he doesn't have a VHD deck and that it is sold as-is. There is a high probability that he either lied to get a deal or found it is defective in testing. Buyer beware.

admin wrote:
And now I keep finding more Japanese devices with this "RGB21" or "RGB Multi":


RGB-21 was used mostly on PCs and devices that produced RGB graphics (such as the Super Cassette Vision, Sega Genesis, and Sega Saturn). As others said, it's almost pin identical to SCART with only a couple pins changed.

You can find this connector on many CRT monitors and was the precursor to the VGA connector. Many computers like MSX PCs used it which is why it is found on the AD-7000, for imposing digital images for MSX RGB computer graphics produced using the MSX interface which could be daisy chained through the AHD decoder. One of the available four data channels on the AHD disc could be used as a program datastream to the PC per white paper specifications. I am not sure if that was used in application, but the RGB-21 would at least allow for high quality text and interactive program overlays.

To my knowledge, no MSX AHD discs were ever offered or produced.

Author:  teddanson [ 04 Feb 2022, 08:00 ]
Post subject:  Re: AHD

signofzeta wrote:
It was super common in the 80s and 90s. Since most of those monitors are junked now you don’t see it anymore.

It was replaced by the 15 pin VGA d-sub and/or D-Terminal.

That’s the first blue one I’ve ever seen though. :)


The Sony VCR I got the other day has a blue SCART socket and a black one. It says in the manual there is a difference. I'll have a look again and check.

Author:  lons_vex [ 04 Feb 2022, 10:24 ]
Post subject:  Re: AHD

teddanson wrote:

The Sony VCR I got the other day has a blue SCART socket and a black one. It says in the manual there is a difference. I'll have a look again and check.


My Grundig CRT TV (R.I.P) back in the old days also had a blue one, which was also the one that could be switched to S-VHS.
The black one could not do this, and was secondary input.

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