Jump to content
IGNORED

15kHz VGA Monitor


acadiel

Recommended Posts

Got this from Amazon, and it does support 15kHz on my Amiga 1200.  Which leads me to wondering if we can get a VGA -> socket made for the Geneve/Mechatronic/EVPC/EVPC2/AVPC and try it on these systems, or least crowdsource the cable pinout and stick them here in this thread.  (Sidebar:  I went looking for the SNUG website to see if they had pinouts, but my bookmark must be old - I can't find it.  Anyone have the current link?)

 

At $139, it's a pretty good deal.  The only negative thing is I can't seem to consistently force 4:3 mode.  Has a gorgeous screen!

 

https://www.amazon.com/gp/product/B01GV9H1RS/

 

The Mechatronic and EVPC look somewhat alike.  Anyone want to check me on these and fill in the missing ones?

 

Mechatronic (DE9):

Pin 1 = Ground to Composite Input "Ground" / Sync input "Ground"

Pin 2 - not used

Pin 3 = Red

Pin 4 = Green

Pin 5 = Blue

Pin 6 - not used

Pin 7 = +5V

Pin 8 = Sync 

Pin 9 = not used

 

Geneve (8 pin DIN):

Pin 1 = +12V for RF Modulator

Pin 2 = Ground

Pin 3 = Audio

Pin 4 = Composite Video

Pin 5 = Ground for RF Mod, else Red

Pin 6 = Green

Pin 7 = Blue

Pin 8 = Composite Sync

 

EVPC (DE9):

Pin 1 = N/C

Pin 2 = GND

Pin 3 = Red

Pin 4 = Green

Pin 5 = Blue

Pin 6 = Sound

Pin 7 = 5V

Pin 8 = Csync

Pin 9 = N/C

 

VGA Pinout:

Pin Name Dir Description
1 RED --> Red Video (75 ohm, 0.7 V p-p)
2 GREEN --> Green Video (75 ohm, 0.7 V p-p)
3 BLUE --> Blue Video (75 ohm, 0.7 V p-p)
4 N/C    
5 GND --- Ground
6 RGND --- Red Ground
7 GGND --- Green Ground
8 BGND --- Blue Ground
9 KEY - Key (No pin)
10 SGND --- Sync Ground
11 N/C    
12 N/C    
13 HSYNC or CSYNC --> Horizontal Sync (or Composite Sync)
14 VSYNC --> Vertical Sync
15 N/C    

 

  • Like 4
Link to comment
Share on other sites

I've purchased a couple of these for use as 15khz monitors, and they also work fairly well (one on my Amiga, one on my Atari ST, both with just passive adapters). (Note I bought from Canada, so check the model number: VE228H)

 

https://www.amazon.com/ASUS-VE228H-1920x1080-Back-lit-Monitor/dp/B00413PHDM

 

I've used this list a couple of times to go shopping now :)

 

http://15khz.wikidot.com/

 

 

  • Like 2
  • Thanks 1
Link to comment
Share on other sites

13 hours ago, Tursi said:

I've used this list a couple of times to go shopping now :)

 

http://15khz.wikidot.com/

I keep this 15khz link on my phone for whenever I’m thrifting. Easily found two NEC MultiSync 19” 4*3 LCD monitors — 1970gx and 1970nx. Both work great with classic Macs, Atari ST, etc. No add on or converters needed. 

 

With this the list I was able find them in a few months during weekly stops at the local Goodwill.  Cost: $9.99 each.

 

Very impressed with the quality of NEC MultiSync monitors. Especially considering they’re both over 15 years old.

  • Like 4
Link to comment
Share on other sites

i've ordered some 15khz VGA test boards. (PCBs only).  Powered by a lithium battery to take around and be able to test monochrome and color to see if a thrift store find monitor supports 15khz.

 

I've ordered 5 of each.  So I will have 4 available of each Monochrome and 4 each for the color board.  $2.00 each + shipping (blank pcb only).  PM me if interested.  I only needed one of each.

 

Read about it as well as the code files HERE

  • Like 1
Link to comment
Share on other sites

  • 3 months later...

This may need to be moved to a new thread. I replaced the 9938 and a leaking capacitor on a EVPC, then I wired up a 9 pin to scart cable based on the info on post #1.

I am finally getting something, a white screen with faint greyish stripes in the first picture, after I turn on the PEB box, then in the second picture after I turn on the console the strips get thicker and have a greyish, blue- like cyan color. Is this a sync issue or do I need to do some more work on my interface. I took a Scart plug, set up for composite on 8 pin din and rewired it to do rgb on a DE9 that fits the EVPC port. 

20210722_001326.jpg

20210722_001342.jpg

Link to comment
Share on other sites

  • 2 years later...

I've been given an AppleColor High Resolution RGB Monitor M0401

Has the old Mac 15-pin input.

 

Can this somehow be used with Composite, or an ST adapter, VGA or "anything at all" (besides an old Mac)?

It seems I could use it for a MISTer system, which is a reason to keep it... but I have not decided to acquire a MISTer.

 

From reading it was a very nice Trinitron tube but it's just taking space presently.

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...
  • Recently Browsing   0 members

    • No registered users viewing this page.
×
×
  • Create New...