Pinball 2000 power \ driver board fault fiding & mistakes in schematics

[beaky]

I managed to use an old amiga computer monitor for a test monitor. It's not good enough to play a game on but it does do the job.
I will need to sit a mirror in front of it so the image is not mirrored.

....or you could swap the Horizontal-Yoke wires on the monitor neck, to do the mirror-flip, or even put the wires thru a switch so you can revert to using the monitor normally for anything else ;-)

MM

good point, This monitor has only been used 1once or twice over the last 10 years and I don't have much use for it other than this so i think i will do the conversion to it.

[Marty Machine]

Good Lad 

[beaky]

On the Neck yoke I swapped the yellow and green to correct the upside down image (Which i didn't mention before) and the blue and red for the mirror image (both per marvin's guide) and ended up with an image that was no longer upside down but it was still mirrored. So I put red & blue back to the way it was and presto, I have an image that is right way up and not mirrored.

The next thing I noticed that was the picture only came up when the monitor was switched to digital but looked like it was only in 16 colour mode. so I checked the anolog / digital selector switch and found that it was faulty (I knew that the image was analog and not digital) and I now have all the colours.
---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Just some Info.
Monitor Model : Commodore 1084

How I made the cable.

Back of D9 Female


9 PIN D-SUB FEMALE at the Monitor.
Pin    Name    Analog Mode    Digital Mode
1    GND    Ground    Ground
2    GND    Ground    Ground
3    R    Red    
4    G    Green    
5    B    Blue    
6    I    n/c    Intensity
7    CSYNC    Composite Sync    n/c
8    HSYNC    n/c    Horizontal Sync
9    VSYNC    n/c    Vertical Sync  


15 Pin PC Connector Pinout (Plug pictured below)
Pin #   De scrip tion
1   Red Video
2   Green Video
3   Blue Video
4   Sense 2 (Monitor ID bit 2)
5   Self Test (TTL Ground)
6   Red Ground
7   Green Ground
8   Blue Ground
9   Key - reserved, no pin
10   Logic Ground (Sync Ground)
11   Sense 0 (Monitor ID bit 0)
12   Sense 1 (Monitor ID bit 1)
13   Horizontal Sync (HS)
14   Vertical Sync (VS)
15   Sense 3 - often not used

Wiring method for pin 2K VGA out to Commodore 1084

              Sub D 15 Male                        D 9 Female
             2K VGA out Pin                Commodore 1084 Pin
RED               1                                       3
GREEN           2                                       4
BLUE             3                                       5
RED GND       6                                       1 (GND)
GRN GND       7                                       2 (GND
H Sync          13                                      8
V Sync          14                                      9

I just cut one end off a VGA lead and fitted a D9 female to the cut end

[Marty Machine]

errrrr, ummmm, when u say u swapped the yellow/green, i assume u meant on the neck-yoke? and not the vga cable.


MM

[beaky]

errrrr, ummmm, when u say u swapped the yellow/green, i assume u meant on the neck-yoke? and not the vga cable.


MM

on the neck - yoke, of course.

[Marty Machine]

No probs, your previous reply about swapping wires & the VGA pinout info all blurred together as 1 reply, and i was thinking you did something to the vga cable to reverse the scans, which i knew was impossible and was puzzled for a while...

anyhoo,
MM.