T.R | Title | User | Personal Name | Date | Lines |
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5327.1 | Maybe a sync problem ?? | GIDDAY::MORAN | | Tue Jan 07 1992 23:00 | 22 |
| Gidday Jason,
I've seen something similar to the problem you have described. I had
hooked a DEC VGA monitor to the Flicker Fixer output of my 3000. When
the FF was enabled (31KHZ O/P) everything was OK. When I disabled
the FF (15 KHz O/P) I had an image which wrapped around itself.
With my multisync monitor hooked up everything went ok.
Useually when a multisync monitor does not get any sync input there
is no display image at all. What _might_ be the case with the NEC
multisync is rather than no image they default to standard VGA (31KHZ).
Maybe check the sync line is hooked up correctly - From memory
you need to hook up the horiz (or composite?) sync signal from the amiga
to the sync input on the Mini D-15.
Best of luck.
Shaun.
|
5327.2 | No, I don't think so. Pins are connected. | KAOOA::TRIMBLE | Compiling finished: 65535 ERRORS! | Wed Jan 08 1992 09:30 | 17 |
| G'day!
The pins I hooked up are the Vertical Sync, Horizontal Sync, red,
green and blue wires, and of course ground (there were many ground pins
on the 15 pin Mini... should I have connected all of these to ground?).
So I think I have what you said covered.
So I don't think that is the problem. I had a friend that told me
that if I set the screen over to the right more (in preferences and
with the monitor controls) this problem might go away. I don't know.
I haven't had time to test that theory out much.
Anyone have any thoughts on my other question?
Jason
|
5327.3 | | CAFEIN::KANOUSE | Ken Kanouse NJD SWS | Wed Jan 08 1992 13:38 | 2 |
| I thought that the NEC 3D needs the VGA scan rate which you don't get
without a Flicker Fixer(31.5 Khz).
|
5327.4 | NEC 3D syncs 15Khz - 38Khz | KAOOA::TRIMBLE | Compiling finished: 65535 ERRORS! | Wed Jan 08 1992 16:24 | 7 |
|
No, the NEC 3D can sync from 15Khz to 38Khz. Well within the
frequencies produced by the Amiga with anything.
Jason
|
5327.5 | Flicker fixer the gap filler ? | DUCK::NONDEP | Il est des fois que je souhaite.... | Thu Jan 09 1992 06:36 | 4 |
| Does this meens that if I buy a flicker fixer for my Amiga500Plus I can
use a Multi scan monitor with "30-60KHz" ?
Thanks in advance, Patrick
|
5327.6 | Metoo, metoo! | ATIS01::ASHFORTH | | Thu Jan 09 1992 07:45 | 18 |
| I'll echo the question asked in the previous reply, and add another:
I've seen beaucoups notes regarding cable hacking required to connect some
monitors (mostly VR241). Given a compatible sync rate, does your "typical"
multisync monitor normally have the connectors needed to use a standard Amiga
or IBM-clone-type cable? If not, which do?
In a separate note I mentioned that I'm considering a rearrangement of my
computer setup. The reason for this is to accommodate the greater size of a
multisync monitor. Part of the plan for the multisync is to also add either a
desktop or notebook IBM-compatible.
I noticed in one of the multisync notes that at least one monitor has two sets
of inputs, making it a "natural" for this type of setup- which of the available
monitors known to "the net" are so equipped?
Thanks for all info-
Bob
|
5327.7 | RE: .5 and .6 | KAOOA::TRIMBLE | Compiling finished: 65535 ERRORS! | Thu Jan 09 1992 08:51 | 20 |
| re: .5
The NEC 3D only SYNCs from 15Khz - 38Khz. The flicker-fixer
outputs at a frequency of 31.something Khz. That is VGA frequency I
believe. So if your A500plus will take A2000 cards (I don't know if
the flickerfixer is out for a standard A500) then yes, you can use a
monitor which syncs from 15Khz-38Khz. I know of no monitor which syncs
much above 45Khz.
Re: .6
The NEC 3D that I have has a 15 pin minisub D connector. Basicly
it's the same size as the mouse connector, but it's got 15 pins instead
of 9. As far as I know, a standard VGA card takes the straight 15 pin
connector. I don't know. I don't know anyone which has a VGA card to
see.
Jason
|
5327.8 | You could buy a custom cable | LODGE::LEN | David M. Len | Thu Jan 09 1992 18:55 | 14 |
| I managed to hack a cable to drive my NEC Multi-sync II. But I still
bought a cable from Redmond to replace it. At $35.00 + shipping I
don't call it cheap, but it was worry free. Redmond ususlly has adds
in Amiga World and other magazines.
A couple side notes:
1) When I hacked up the cable, I could NOT get it to work using the
separate vertical and horizontal sync lines. But when I used the
single composite sync line it worked fine.
2) When I got the A2320 Display Enhancer, I was able to use the
standard cable that came with the NEC II.
|
5327.9 | Thanx I'll check it out but... | KAOOA::TRIMBLE | Compiling finished: 65535 ERRORS! | Fri Jan 10 1992 09:13 | 17 |
| re: -.1
Thanx for the info. I'll check my latest AmigaWorld for the
company.
In regards to your hacked cable: I take it you hooked the monitor
directly up to the RGB out of the Amiga (the RGB port)? The cable I
made simply hooked the monitor's cable up to the 6 pin DIN of my 1084
cable attaching the respective pins to where they should go. Should I
abandon this and make the cable to the port itself, hooking up the
composite sync?
Jason
Thanx for the info! :')
|
5327.10 | | LODGE::LEN | David M. Len | Sat Jan 11 1992 23:07 | 6 |
| Yes, my cable was from the A2000 RGB port (the DB23 video connector) to
the NEC.
I have never worked with a 1084 (or any other Commodore monitor), so I
don't know about the 6 pin DIN that you are referring to, so I don't
think that I make any reccomendation about that connection.
|