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MrBland
Coleco Pac Man
Joined: 01 Oct 2012
Last Visit: 20 Mar 2013
Posts: 37
Location: Virginia
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 Posted: Sun Nov 18, 2012 5:30 am Post subject: Adventure Vision |
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Well turns out the one I have isn't repairable, sucks but I knew I was taking a risk. So thought I'd list here. The one I have is fuctional except for the LED board, so ideally if someone has a broken one I can buy for the LED board that would be perfect. Any functional system in bad shape (broken screen, etc.) would work too. I am hoping to get something relatively cheap and make a functional unit between the two. Thanks,
Mr.Bland |
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vcoleiro1
Tiger Jawbreaker
Joined: 08 Jan 2012
Last Visit: 07 Jul 2020
Posts: 221
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| Posted: Wed Nov 28, 2012 5:49 pm Post subject: |
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What exactly is the problem with your Adventure Vision MrBland?.
Is it that some LED's are not working?. If so , that is repairable. There is a thread on this forum detailing how the LEDs can be replaced. |
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MrBland
Coleco Pac Man
Joined: 01 Oct 2012
Last Visit: 20 Mar 2013
Posts: 37
Location: Virginia
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| Posted: Wed Nov 28, 2012 6:43 pm Post subject: |
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| vcoleiro1 wrote: | What exactly is the problem with your Adventure Vision MrBland?.
Is it that some LED's are not working?. If so , that is repairable. There is a thread on this forum detailing how the LEDs can be replaced. |
To be honest I'm not a hundred percent sure. I don't believe any of the LEDs are burnt out. The screen lights up, game noises, but game won't run. I sent it to Rik and he did an elimination process and narrowed it down to something with the LED board causing the problem but he can't figure out how to fix it. So I am hoping maybe I can find a broken unit I can steal the LED board out of. |
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blanka
Atari Cosmos
Joined: 14 Dec 2010
Last Visit: 12 Mar 2025
Posts: 562
Location: Eindhoven, the Netherlands
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| Posted: Wed Nov 28, 2012 11:54 pm Post subject: |
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| Are the shift registers broke? |
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MrBland
Coleco Pac Man
Joined: 01 Oct 2012
Last Visit: 20 Mar 2013
Posts: 37
Location: Virginia
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| Posted: Sat Dec 01, 2012 7:48 am Post subject: |
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| I don't know. Rik still has it maybe he can shed some light? |
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Rik
Site Admin
Joined: 07 Oct 2005
Last Visit: 27 Apr 2025
Posts: 1933
Location: California
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| Posted: Sun Dec 02, 2012 7:42 pm Post subject: |
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| blanka wrote: | | Are the shift registers broke? |
Yeah, I'm assuming that's it... If I put the LED board from my game on his, it works perfectly (so I have confirmed the rest of the game works fine). His LED board on my game makes my game do what his is doing (only the lower 5 or 6 rows of LEDs light up dimly most of the time, sometimes it'll spastically flash them all...)
Oddly, it prevents the game from running too... There must be some feedback sent back to the CPU from the LED board- with the LED board disconnected, the AV won't run the game (operating the controls doesn't do anything, I'd be able to hear the sounds). Counting the little blobs on the board, it looks like there are 5 shift registers, and a sixth chip for something... Unfortunately it's all surface mount epoxy-coated chips, so there's not much I can do with them...
Never seen an AV with a bad LED board before (other than individual LEDs being damaged). |
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blanka
Atari Cosmos
Joined: 14 Dec 2010
Last Visit: 12 Mar 2025
Posts: 562
Location: Eindhoven, the Netherlands
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| Posted: Sun Dec 02, 2012 11:54 pm Post subject: |
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Doesn't the AV read the cycle of the mirror with a sensor? Isn't that one connected to the LED board? If it is dirty or not working, it will make the processor go wacko as it looses key timing info.
Rik: can you make good pics or scans of all PCB's (both sides) and document the wires between them (with pictures)? I can take a look at the total functioning of the AV and make an overall schematic, but the info on AV.com is too bad for it (crappy photo's). |
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Rik
Site Admin
Joined: 07 Oct 2005
Last Visit: 27 Apr 2025
Posts: 1933
Location: California
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| Posted: Mon Dec 03, 2012 12:10 am Post subject: |
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No, nothing is connected to the LED board but a ribbon cable to the main board. The motor speed sensor and the motor wires themselves are just wired directly to the main board as well.
There's a bunch of pictures here:
http://www.handheldmuseum.com/_Temp/AV/
There's a front/back of the main PCB, a front of the LED board, looks like only a back of the controller board... And then some random internal pics... (Nothing organized, I just threw those up for someone a while back...) On the second-to-last picture, the ribbon cable at the top goes to the controller/sound board, the one at the bottom goes to the LED board.
The green and yellow wires on the back of the PCB go to the mirror motor, the brown, yellow and black ones next to the LED ribbon cable go to the motor speed sensor.
There's schematics and other techy stuff here:
http://atarihq.com/danb/adventurevision.shtml
(but the LED board isn't included in the schematics I don't think...) |
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blanka
Atari Cosmos
Joined: 14 Dec 2010
Last Visit: 12 Mar 2025
Posts: 562
Location: Eindhoven, the Netherlands
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| Posted: Mon Dec 03, 2012 12:36 am Post subject: |
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| Do you have the other side of the keyboard PCB and LED PCB. I miss the sound micro for example. |
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Rik
Site Admin
Joined: 07 Oct 2005
Last Visit: 27 Apr 2025
Posts: 1933
Location: California
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| Posted: Mon Dec 03, 2012 4:09 am Post subject: |
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Look at P1010022.JPG and P1010057.JPG that I just uploaded. That's a kind of distant shot of the control board, and a closeup of the sound chip area. I had those handy. I never took a picture of the back of the LED board, so I'll have to open up an AV again to get that. Surprised that I forgot to do that...  |
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blanka
Atari Cosmos
Joined: 14 Dec 2010
Last Visit: 12 Mar 2025
Posts: 562
Location: Eindhoven, the Netherlands
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| Posted: Mon Dec 03, 2012 2:01 pm Post subject: |
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| What is the large connector on the PCB? It is not connected to anything isn't it? Was it a test connector? |
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Rik
Site Admin
Joined: 07 Oct 2005
Last Visit: 27 Apr 2025
Posts: 1933
Location: California
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| Posted: Mon Dec 03, 2012 2:31 pm Post subject: |
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'Expansion Port'...  Designed for the possibility of future attachments, it's accessible by popping a little cover off the side the game, which you can see on the side of the system here:
http://www.handheldmuseum.com/Entex/AV.html
I think they were actually considering the possibility of a computer keyboard attachment, but I don't think anything ever reached even the drawing stages for it... |
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MrBland
Coleco Pac Man
Joined: 01 Oct 2012
Last Visit: 20 Mar 2013
Posts: 37
Location: Virginia
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| Posted: Mon Dec 03, 2012 5:41 pm Post subject: |
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| Rik wrote: | 'Expansion Port'... Designed for the possibility of future attachments, it's accessible by popping a little cover off the side the game, which you can see on the side of the system here:
http://www.handheldmuseum.com/Entex/AV.html
I think they were actually considering the possibility of a computer keyboard attachment, but I don't think anything ever reached even the drawing stages for it... |
Keyboard attachment would have been pretty cool... though I am hard put to think of a good use for one in a machine like this.... maybe custom programming..?... |
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Rik
Site Admin
Joined: 07 Oct 2005
Last Visit: 27 Apr 2025
Posts: 1933
Location: California
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| Posted: Mon Dec 03, 2012 8:22 pm Post subject: |
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| Probably, in some rudimentary way... Maybe a very simplified BASIC cartridge or something... It was probably just added so they could put 'Expansion Port!' on the box or something. |
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