ATTN: Jungler owners

gamefixer

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Need some help here.

A Jungler board made its way to me for repair from another member here, he can chime in if he wants too.

Board initially had no sound but came up and was playable otherwise. After I repaired the sound problems I unplugged the board and moved it to the side and started working on another one of his boards, a "600."

Got the "600" fixed and put the Jungler back on to test it (I like to make sure repairs are good before I box them back up) and now the game comes up but the graphics are a mess. Kinda like a PacMan board with the V-RAM addresser missing.

Anyway... Schematics are no where to be found so I'm looking at each IC's input and output to make sure they are working correctly. There are three chips on this board that I cant identify. They have the part numbers faded away due to age.

They are: 7L, 7E and 7A.

I know there are Jungler owners on this forum. PLEASE take a look at your board and reply with the part numbers on those IC's.

Please. :)

Thanks in advance.
 
There is a collection of very good qualitiy hires PCB pictures including a Jungler board, maybe this helps: http://www.wolfgangrobel.de/arcadetalk/pcbgalerie.htm

You may have a different PCB Layout, though (talking about conversions).
If still needed I could check out our Jungler PCB when I'm home from work.

Those are some great pics! Thanks for the link. However, the CPU (bottom) board is completely different. I think that may be because the pic on the site is of a Locomotion board and not a Jungler???

Jungler only has 4 program ROMs. The board in the pic has 7.

If you could check your board that would be fantastic! Thank you very much for the link and any help!
 
I just noticed that the board on my bench looks to be different than the board pictured on arcade-museum. I took some pics and uploaded them so the admins can add them to the page.
 
Perhaps the pic on the website I linked is a conversion, I don't kniow.
Can you post a picture of your PCB here in the thread?
I'll take a look at mine when I am home.
 
Perhaps the pic on the website I linked is a conversion, I don't kniow.
Can you post a picture of your PCB here in the thread?
I'll take a look at mine when I am home.

Could be a conversion, I dont know either. :)

Here's what I've got...
 

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Now that's interesting, the adp logo on those EPROM stickers is by the german distributor adp/Gauselmann, this board seems to have travelled quite a bit. I wonder why they put on their own stickers anyway:confused: In fact there IS even a version with german onscreen text, but I don't know if that was an official release, I have this version only on a bootleg board.
Anyway, I also have the exact board as in your pictures (with english onscreen text), so I took a look:

7L - 74LS157
7E - 74LS157
7A - 74LS08

Good look with the repair!
 
Thats great news! Thanks for checking those for me.

I'm attempting to use an AR81 for the first time on this board. I'd like to see that the CPU is actually reading game code and RAM correctly but I have not figured out how to do that yet.

So next stupid question... Dont suppose you have schematics for this wonderful board?? :)
 
for the record, this is what the screen image currently looks like.
 

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