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Amiga computer related discussion => Amiga Hardware Issues and discussion => Topic started by: AJCopland on May 11, 2007, 08:07:56 PM
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Ok a while ago I bought myself a Dell 2407wfp and it's lovely etc. It's got loads of inputs which is good as I've got my Xbox360 and two PC's hooked upto it.
Currently for my A1200 gaming needs I've been using an old 1084 monitor with crappy composite. I know I can put composite into the Dell so I've given it a go.
I get *almost* nothing. Just a black screen and the symbol indicating that it's found a signal (It's a picture of the port in the top left of the screen) flicking on and off repeatedly.
Has anyone had any luck with using the composite port and an A1200 on the 2407? Or is it simply out-of-range and not handling the 15Khz at all as I suspect.
Cheers.
Andy
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Andy,
I've no experience with the 2407wfp, but it should give you a reasonable display through the composite. Is there a button that needs pressing to select that particular input to be displayed?
Have you tried connecting to the composite on a TV? If you get no output, then I'd suspect there's a fault with the Amiga.
One of my A600's has just lost its green signal, causing the composite output to have a light purple hue. Not sure whether it's the RGB output at fault or the circuitry that creates the composite. I guess I'll find out when I finally get around to hooking it up to my LCD TV via the scart.
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If your 1200 works on the 1084 with composite, then you should be ok with the 1200. If your 2407wfp has a composite input, by all means it has to be 15kHz. Do you have any other device with a composite output to try on the 2407wfp?
Joshua.
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DrDekker wrote:
Andy,
I've no experience with the 2407wfp, but it should give you a reasonable display through the composite. Is there a button that needs pressing to select that particular input to be displayed?
Have you tried connecting to the composite on a TV? If you get no output, then I'd suspect there's a fault with the Amiga.
Yes there's a button to select the composite, I use it frequently to switch between the other devices I have plugged in :-D However as I described it gives a flicking on/off input icon without ever displaying anything.
The A1200 works fine when plugged into the 1084 so I'm guessing that the 2407 doesn't like the 15khz signal.
Andy
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Gaiyan wrote:
If your 1200 works on the 1084 with composite, then you should be ok with the 1200. If your 2407wfp has a composite input, by all means it has to be 15kHz. Do you have any other device with a composite output to try on the 2407wfp?
Joshua.
Good point I have a couple of other consoles around that are downstairs I could try with. Not sure If the Dreamcast has composite out though it's been so long since I last changed it over. I think It uses SCART at the moment. I'm sure the PS2 is using SCART too actually. Hmm. I have another some other Amigas I can try with too but if it's just the wrong signal frequency then I'll be out of luck with those too.
Andy
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Make sure your monitor supports either Pal or NTSC in composite mode and run the Amiga in the corresponding screenmode. I know the 1084 series was capable of doing 50-60 hz. Most other monitors can't.
I had similar issues with the 20" Toshiba Timm monitor during the 90's. That monitor only supported 60hz ntsc composite modes.
Is your Dell a UK release (pal) or US a model (ntsc)? I suspect if you ordered it from the US it may only support NTSC.
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It's a PAL UK monitor though I don't believe there's any difference in the US and UK versions anyway. My GameCube works just fine through composite.
The A1200 is in its default mode, as in booting straight form disk no screen prefs or anything else set.
Andy
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try to goto Early startup (during the boot both mouse buttons pushed) and then push the SPACE bar.
If the EarlySS screen is showed correctly, your monitor doesn't sincs under 60 Hz.
Sometimes the "new genaration" multi standards devices (like probably your others consoles) output a PAL60 signal.
Edit- and of course, the video mode must be a full PAL interlaced overscan hires mode.
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Similar problems on other Dell screens (they must use the same composite/s-video tuner).
Thread on Dell forum (http://www.dellcommunity.com/supportforums/board/message?board.id=dim_monitor&thread.id=68228)
"My digital camera and DVD-player work without any problems, but when I connect my old trusty C64 to it (tried both Composite and S-Video), I don't get any display.
The signal is PAL (50hz), resolution is 320x240.
When I connect my Commodore Amiga to the 2007FP (Composite), I only get a display when I switch to NTSC and when I select a resolution above 640x200.
Since I bought the 2007FP in Europe, it *should* be able to handle PAL video-input."
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Thats normal.
A video device (in this case a PAL LCD monitor) doesn't "understands" a 320x240 resolution. (nor even a 640x480 one)
The source device (the Amiga) must output a FULL compliant broadcast resolution PAL or NTSC standard. (ie 736x580 or so thats should be a PAL hires overscan mode)
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@humppa
Ah bum, looks like that doesn't bode well then. A bit disappointing.
I don't have time today to check their suggestions but I also dont like the idea of unplugging and plugging back in the A1200s composite aerial lead whilst it's switched on just to get the Dell to pay attention to it :-o
I'll keep you guys posted with what I find. Otherwise it's back to the 1084 :-D
Andy
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@Framiga
SO the answer is; no, it wont work.
???
Andy
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@Framiga
Thats normal.
No, it isn't. Most LCD displays with composite or s-video inputs (e.g. Samsung) have no problems displaying C64 or Amiga video signals. So far I have only seen this problem on the latest Dell LCDs, so it is most likely due to the tuner model they use.
Also note that in the above link, it is said that the older 2005WFP-model doesn't have any of these problems.
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AJCopland wrote:
Currently for my A1200 gaming needs I've been using an old 1084 monitor with crappy composite. I know I can put composite into the Dell so I've given it a go.
Why dont you get an rgb cable, and connect the 1200 the way it's meant to be ? :-D (at least for games).
I have my 3000 to a 17' vga monitor via the picasso IV scadoubler, but gaming with the 1200 on the 1084S feels much much better.
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@humppa
"have no problems displaying C64 or Amiga video signals"
define better what do you mean with this sentence?
and then... "tuner"!?!
we are still speaking about Composite input?
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Framiga wrote:
@humppa
"have no problems displaying C64 or Amiga video signals"
define better what do you mean with this sentence?
Simply that there isn't any problem displaying C64 or Amiga composite signals using the composite input on those LCDs. Other devices, like the PS1, work as well (resolution being lower than the "FULL compliant broadcast resolution PAL or NTSC standard" that you quoted). Only the Dell's seem to have this problem.
we are still speaking about Composite input?
Sure.
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I've seen a CRT-based HDTV with similar problems. Only when I plug a 1200 into it I actually DO get a screen, but it's weird and choppy. When I go into interlaced mode it looks perfect, and when I go into PAL mode the picture disappears.
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@MrZammler
I've actually got a Amiga video to SCART connector on the way for another project (parts of which still haven't turned up yet, grrr ebay) so I was thinking of just abandoning the idea of running it through the Dell for now.
It doesn't look like other have succeeded. Is there an Amiga to RGB or component format / signal? The Dell does take component as well but I've only ever used composite or SCART on them having never owned a TV with anything else before (Yes I have just go a better paying job how can you tell :-D).
Andy