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Amiga Gaming / Re: Question About Train Driver 3, How To Do Demo Version-Full Version?
« Last post by Sugo77 on April 29, 2024, 05:23:02 PM »
My New Records(First Run Driving Train)(29.04.2024):
Train Driver Simulator 3, Full Version, Route - Wolves&oxley, Loco 87 Lord Nelson, My Record Station 2 Milton Keynes, 1, 5(29.04.2024):

Train Driver Simulator 3, Full Version, Route - Wolves&oxley, Loco 87 Lord Nelson, My Record Station 2 Milton Keynes, 2, 6(29.04.2024):

This was very hard experiences od driving trains, but and very interesting... My driver % 11 - not enough yet for Drive to Station 3, but anyway this was good first runs with adventures on ways, and now anyway i senese better drive of trains...
Skills up!...







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Amiga Tutorials / Re: Basics for Setting up Firebird (Prometheus) A4000 3000 Daughterboard
« Last post by Boing-ball on April 29, 2024, 03:59:04 PM »
Will Now be keeping this updated over here just in-case:

https://www.amibay.com/threads/basic-guide-on-setting-up-a-prometheus-firebird-daughterboard-on-a3000-and-a4000-now-here-on-amibay.2446084/

3
Amiga Hardware Issues and discussion / Re: VERY Dim video output from Amiga 4000
« Last post by Retronaut on April 29, 2024, 03:24:43 PM »
I think I might be able to manage the DAC replacement, though there are some things I need to find out first.

TBH, though it would be nice to practice it on a similar chip on a broken board. Does anyone have a similar board, junk that they could send me (id pay postage)

In other news

So I and a friend (electronics hobbyist) had a pour over the schematics, and the DACs spec sheet and here is what was found.
  • The DAC requires a 5v supply to work, I measured this and its 4.84v, so it seems fine.
  • The DAC requires a reference 1.2V supply, which comes from a near-by chip, I measured this, and its 1.23V, so it appears fine.
  • The DAC has a compensation signal, and thats supplied by (I assume) a 580ohm resistor, so I guess if that was failing it would cause issue. Measured resistor, seems ok.
  • The chip has 3 pins for RGB, I measured these and they are 5mV when the machine is booting (black screen) and then jumps to 30mV when displaying Workbench.

The 30mV value is the exact same as the pins on the DB23 monitor socket. So its clear there is no issue between the DAC and the socket.
(later I will measure the same outputs on my Amiga 500, to check 30mV is not correct)

It also appears the DAC is getting all the right inputs as well.
So it appears that the DAC is getting the correct digital signals in, but it is not then multiplying these values out, to the correct voltages?

So, what do you guys think? To me now it could be 2 things.
  • Dry solder joint on DAC somewhere, causing odd behaviour.
  • The DAC is dying.

Some things I could try
  • Heating the DAC, in isolation, to see if its possible a chip failure. I understand warming chips up can sometimes temp fix issues. Showing it IS the chip on its way out
  • Re-flow the pins for the DAC, its possible a dry solder joint is causing this.
  • Replace the DAC :/
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Amiga Gaming / Re: Question About Train Driver 3, How To Do Demo Version-Full Version?
« Last post by Boing-ball on April 29, 2024, 01:57:39 PM »
Quote from: Sugo77 on April 28, 2024, 08:09:43 PM
Got, installed, tested, allf ine, thanks you!
This hard, but very interesting Trains Simulator Videogame, i even thhink this game Parents of all modern Trains Simulators!
Promised results in screenshots:
Screenshot №1:
https://forum.amiga.org/index.php?action=dlattach;topic=76470.0;attach=3402;image
Train Driver Simulator 3, Full Version, Route - Wolves&oxley, Loco 87 Lord Nelson, Speed 100 Mph, Miles 12, 3(28.04.2024)
Screenshot №2:
https://forum.amiga.org/index.php?action=dlattach;topic=76470.0;attach=3404;image
Train Driver Simulator 3, Full Version, Route - Wolves&oxley, Loco 87 Lord Nelson,Train Derailed, 4(28.04.2024)
P.S.:
This fakin verry hard, but very interesting game, also have many elements of random, when you are long drive trains on long distances, ahahahaha Bull shet, i was use many bad words, when was try drive trains from one stantions to next stantions and game always was interrupt and do random traps\limits for i lose, ahahahaha
This was very fun, lol

Looks good. Glad you have found the full version. 👍🏻
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Amiga Gaming / Re: Question About Train Driver 3, How To Do Demo Version-Full Version?
« Last post by F0LLETT on April 29, 2024, 09:06:11 AM »
Quote from: Boing-ball on April 27, 2024, 06:24:55 PM
@Sugo77

Please don’t send any monies from the info Snitchy Cunningham has provided.

Send me a PM and I might be able to help you, like any good person in the Amiga Community would 😉

Sorry OP, off topic.

Please can we stop this now. Or I will have to take action which is something I do not want to do.
6
Amiga Hardware Issues and discussion / Re: VERY Dim video output from Amiga 4000
« Last post by Boing-ball on April 29, 2024, 01:51:25 AM »
Quote from: Retronaut on April 29, 2024, 01:17:28 AM
If you read my post, it says, if I were someone else. i.e. I was anticipating others telling me that it is a capacitor issue.

But in my case, I know its nothing to do with capacitors, as they are all new. Now, could it be failing resistors? Im not sure, as I am not an electronics student.

As you say, its certainly got something to do with the DAC you might assume.

Ill take a look at it, and see if anything sticks out. I do hope its NOT the chip itself, as it will be a tricky replacement,  but lets see.

If it is the Chip and you don’t want to attempt the replacement. Then give Ian a shout at mutant-caterpillar based in Anglesey North Wales.
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Amiga Hardware Issues and discussion / Re: VERY Dim video output from Amiga 4000
« Last post by Retronaut on April 29, 2024, 01:17:28 AM »
If you read my post, it says, if I were someone else. i.e. I was anticipating others telling me that it is a capacitor issue.

But in my case, I know its nothing to do with capacitors, as they are all new. Now, could it be failing resistors? Im not sure, as I am not an electronics student.

As you say, its certainly got something to do with the DAC you might assume.

Ill take a look at it, and see if anything sticks out. I do hope its NOT the chip itself, as it will be a tricky replacement,  but lets see.
8
General chat about Amiga topics / Re: Photos - videos from Commodore Los Angeles Super Show 2024
« Last post by RobertB on April 29, 2024, 01:13:57 AM »
Thanks!

     The CLASS 2024 photos from Mario Luppi have come in!  To see them, go to

http://blog.retro-link.com/2024/04/yup-more-pics-from-commodore-los.html

          Still editing the videos,
          Robert Bernardo
          Fresno Commodore User Group - http://www.dickestel.com/fcug.htm
          Southern California Commodore & Amiga Network - http://www.portcommodore.com/sccan
          June 22-23 Pacific Commodore Expo NW - http://www.portcommodore.com/pacommex
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Amiga Hardware Issues and discussion / Re: Amiga 2000 Video & Audio Issues
« Last post by TmaxElectronics on April 28, 2024, 10:51:42 PM »
Ah yes man thank you soooo much. Apparently there was a slightly bent pin in the plcc for agnus that I didn't notice before. So far I only checked for continuity from the top of the plcc pin to the other ICs (and perhaps actually bent the pin in the process  :-[). But after bending all pins straight again the A2000 is back up and running again ^^

Interestingly enough I didn't notice any missing data on the bus where the bad connection was, probably due to activity from the connected ICs or cross-coupling.

Now I have to think what upgrades to do to the thing to make it most useful for me. I already have a harddisk and am thinking about doing one of the HDMI output mods. Any suggestions on other things I could do? :)
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Amiga Marketplace / Re: Amiga 2000 + keyboard + mouse + monitor + floppies + card
« Last post by Flop on April 28, 2024, 10:19:24 PM »
550 EUR Last price drop otherwise will keep.
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