Pioneer Palcom RGB cable

By Oscar

Guardian (561)

Oscar's picture

03-08-2008, 05:13

Hello!

I am trying to build a RGB cable for connecting a japanese Pioneer PX-V7 to a PAL TV. I have found a service manual for PAL Pioneer PX-7 version, does this computer have the same RGB pinout as japanese version? I have read that PX-7 has TTL output, what´s the problem with this and tv? PX-V7 uses the same cable as Turbo R?

Please, people with this equipment and laserdisk, help me to make the cable.

Thank you!

Greetings,

Oscar

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By Manuel

Ascended (14738)

Manuel's picture

03-08-2008, 10:11

For RGB, PAL or NTSC is the same (but the display frequency will be 60 Hz). Most tv's can handle that. EDIT: oh, I think you also realized that Smile

By aap_en_koe44

Supporter (12)

aap_en_koe44's picture

03-08-2008, 12:37

i once bult a cable for a px7 but it dit not work normaly on rgb. but after i made somthinge false it worked.

if you got the pin layout plzz put it here to

By Oscar

Guardian (561)

Oscar's picture

03-08-2008, 12:48

Hello,

You can find RGB pinout for PX-7 (PAL) in MSX Info Pages.

manuel, has the japanese PX-7 the same pinout has the european? What about these comments that I have read about TTL signals (digital RGB)? Is a particularity of this computer or every MSX has the signals?

Thanks!

By Oscar

Guardian (561)

Oscar's picture

03-08-2008, 13:25

Hello again,

I have found a schematic for a Spectrum QL (outputs TTL RGB) that uses 330 ohms resistors for "lower" the voltage level of TTL signals. The creator of the document says that works great, maybe MSX needs the same connection.

By Dr.Wily

Rookie (22)

Dr.Wily's picture

08-11-2018, 00:29

Hello,

Someone can tell me if the RGB out displays all (MSX's graphics + LD video) with Palcom LD games ?

By gdx

Prophet (2320)

gdx's picture

08-11-2018, 00:52

Palcom MSXs use an old digital RGB that can diplayed up to 8 colors only. (see Connections)

https://www.msx.org/wiki/Pioneer_PX-7%28BK%29

By Dr.Wily

Rookie (22)

Dr.Wily's picture

08-11-2018, 01:44

Yes I know that and this is why I ask if the palcom can display the LD video through its genlock with a RGB connection. In RGB with a Palcom Laserdisc game is can we see :

- only MSX graphics
- or MSX graphics + LD video

in short, how works superimpose with a RGB out and mixed video signals (composite for LD + RGB for MSX) ?

By gdx

Prophet (2320)

gdx's picture

08-11-2018, 01:31

I don't know but even if it can display MSX graphics + LD video, it's too bad in 8 colors. An upgrade to SCART RGB would be welcome.

By Dr.Wily

Rookie (22)

Dr.Wily's picture

08-11-2018, 01:43

gdx wrote:

even if it can display MSX graphics + LD video, it's too bad in 8 colors.

Ah ah, it could be funny. oO

A nice guy with a Palcom setup + RGB cable could test for me ? Tongue

My MSX profile