PowerGraph VGA out of range

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By MichelM

Expert (74)

MichelM's picture

16-03-2017, 14:43

I recently received my V9990 PowerGraph Rev2. I can't get it to work with my VGA screens. When I plug in a VGA cable to either of my monitors, and start the Underwater demo, it will say "out of range" on the monitor.

Is there a manual for the PowerGraph somewhere? On how to connect it?

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By MichelM

Expert (74)

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16-03-2017, 14:45

In fact, it already says "out of range" on the screen, without starting anything.

By msxtrd

Master (216)

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16-03-2017, 16:56

Sounds like your VGA screen is not compatible. It needs to be compatible with 15KHz horizontal sync.

By MichelM

Expert (74)

MichelM's picture

16-03-2017, 22:08

Yeah, I sort of figured out already that the 15KHz video signal was "out of range" for both my monitors. I just saw a VGA connector and assumed it should work on a VGA monitor. Smile Let me see if I can come up with another monitor, or maybe try the S-video output instead.

By Grauw

Ascended (8743)

Grauw's picture

16-03-2017, 22:10

You can also make a lead for SCART-RGB to connect to your TV (if it has that connection, though seeing you’re in the USA, probably not…).

By valkyre

Champion (425)

valkyre's picture

17-03-2017, 10:37

If you want the pin details for the pg2 vga to scart lead, mail me.

By MichelM

Expert (74)

MichelM's picture

26-03-2017, 17:15

Well, I ended up using the S-Video connection instead - no TV with SCART here in the USA, although I do have a SCART to HDMI converter that works nicely - but the S-Video works just fine too! I'm happy to see my 1chipMSX running with 2 screens, a v9990 PowerGraph Rev. 2 and Moonsound.

By enribar

Paladin (1022)

enribar's picture

04-12-2019, 12:05

Tired to spend my money in useless cables, I ask help to find the right ones to connect my PowerGraph v.1 to a monitor or TV. Please list urls to amazon or other sites - for ex is this good?
https://www.amazon.it/Siyear-S-Video-maschio-lettori-laptop/...
Thnx in advance.

By Meits

Scribe (5752)

Meits's picture

04-12-2019, 12:24

You have a version 1. The wiki says "CVBS and S-Video outs are immediately available".

By enribar

Paladin (1022)

enribar's picture

04-12-2019, 12:36

Ok but is this good? https://www.amazon.it/Siyear-S-Video-maschio-lettori-laptop/...
I ask because I think my board is damaged...
This could be useful as well:
List of modern monitors that support 15 kHz analog RGB signals
http://15khz.wikidot.com/

By Meits

Scribe (5752)

Meits's picture

04-12-2019, 12:36

If that cable complies to the S-Video standard, it will. It will not give you the best of quality because it's composit. If that's what you want/need/can handle you could give it a shot (I would not want it because it's not RGB). I can not and will not guarentee this cable will work for you or give you the satisfied result. But it should just work, be it only the yellow connector.

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