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Amstrad CPC6128 --> Commodore 1084P

Started by Grega, 04:39, 03 December 17

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Grega

Howdy


I picked up a C6128 yesterday from a lovely old techo guy ; with a heap of extremely useful information. However rather than a SCART connection on the back of my 1084P I only have a 6 pin and 8 pin DIN. Last evening I put together a 6 pin to 6 pin cable based on pin mappings ;

While I get a display and everything appears fine ; the minute I issue a 'cat' to A (or B) the screen blurs and shifts to the left and becomes garbled ;


These are the pin mappings I used.
Amstrad --> 1084P
1 R --> 4 R
2 G --> 1 G
3 B --> 5 B
5 GND --> 3 GND
4 Sync --> 6 VSYNC
6 Comp/LUM --> 2 HSYNC


Any ideas as to where I have fallen here? I do apologise if this has been answered but I can't seem to find where. I could also be missing something obvious.

The 1084P
Pin 1: Green
Pin 2: Horizontal Sync
Pin 3: Ground
Pin 4: Red
Pin 5: Blue
Pin 6: Vertical Sync

The C6128
Pin No.Signal NameDescription
1RRed analogue signal
2GGreen analogue signal
3BBlue analogue signal
4SyncRGB switching control
5GNDCommon
6LUMLuminance








pelrun

Try disconnecting the LUM signal and connect Sync from the 6128 to the HSync on the 1084. Leave the VSync input disconnected.

Grega

thank you very much pelrun, that works absolutely perfectly :D


So ; Amstrad --> 1084P monitor


Pin 1 - Pin 4
Pin 2 - Pin 1
Pin 3 - Pin 5
Pin 4 - Pin 2
Pin 5 - Pin 3
Pin 6 - NC


Thanks HEAPS!

00WReX

And for the Commodore 1084S-P1 that has the 9-Pin RGB connector.

AMSTRAD    ==>  1084 9-Pin

1 - RED      ==>  3 - RED
2 - GREEN  ==>  4 - GREEN
3 - BLUE    ==>  5 - BLUE
4 - SYNC    ==>  7 - CSYNC
5 - GND      ==>  2 - GND

Cheers,
Shane
The CPC in Australia...
Awa - CPCWiki

Grega

ripper shane. i don't have one of those in my collection just yet ;)

Gryzor

Does the P1 have anything special? I guess it's a [P]hilips one, but apart from that...?


For anyone out there who can't/won't build their own cables, I know you can get some on eBay...

Bryce

The P is for Philips, the 1 means it has the 9pin Sub-D connector instead of 6/8 pin DIN sockets. It supports exactly the same formats as the P version. I think the P2 was a costdown which removed features.

Bryce.

Gryzor

Which ones are those with the Green option again, then?

Bryce


Gryzor

Ah yes, *that* site :D


But it doesn't list the Green option... or am I missing something?

Bryce

You haven't gone far enough to the right. You possibly mean the 1701?

Bryce.

Gryzor

Where on the 1701 (Jesus those tables...) does it say about the Green option?


But no, mine is a 1084S-D(2??) I think, definitely not a 1701.

Bryce

Ah, green option, I thought you meant monochrome. Not sure the "green-switch" is reflected in the model number.

Bryce.

Gryzor

Ah, I see; I thought the green option was restricted to specific models, though I haven't seen concrete information on that.

00WReX

The P1 has the button on the front to toggle between colour or green screen.


Cheers,
Shane
The CPC in Australia...
Awa - CPCWiki

00WReX

I had the Commodore monitor hooked up today so grabbed a couple of pictures.
The pictures don't do it justice, the screen is very sharp, and the green screen mode with 80 column is very sharp.

Cheers,
Shane

[attach=2][attach=3][attach=4]
The CPC in Australia...
Awa - CPCWiki

Gryzor

Indeed. It's like a really good CPC monitor :)

geeb

#17
Quote from: Bryce on 15:30, 06 December 17
Here: https://gona.mactar.hu/Commodore/monitor/Commodore_monitors_by_model_number.html

Bryce.

Doesn't appear to have a picture of my Type DM602 unless the image is trapped on the page

http://www.scuzzscink.com/amiga/a_scuzz_jun12/a_scuzz_jun12_02.jpg

http://www.scuzzscink.com/amiga/amiga_scuzz17.htm

I am assuming you all use a different power supply for the 12V with the 6128

http://www.scuzzscink.com/amiga/scuzzblog_december17/scuzzblogddecember17_0302.htm

I prefer my Microvitecs for the Amigas. On the C64 I use the ....

http://www.scuzzscink.com/amiga/a_scuzz_nov20/a_scuzz_nov21_18.jpg

Hadn't thought about the Amstrads... though I have enough CTM644s plus three or four green screens [size=-2]GT65s thinks the name.

[ By the way wasn't Bryce the kid with the parrot in the Max Headroom C4 film ]

Big Time ... "All day every day, making tomorrow seem like yesterday." . Classic

scuzz
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Bryce

Quote from: geeb on 02:04, 11 December 17

[ By the way wasn't Bryce the kid with the parrot in the Max Headroom C4 film ]

Big Time ... "All day every day, making tomorrow seem like yesterday." . Classic

scuzz


Yup, that's where the username comes from. But from the series, not the film. :)

Bryce.

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