I've got an interesting phone call:Defender and Zaccaria Dodgem!!!

[PaulSwan]

Andy Welburn (P-Man) might be able to help you out with a set of Dodgem ROMS to swap in - drop him an email and ask if it is a straight ROM swap and if he can burn some EPROMS for you for it.
Paul.

[Belike]

Andy Welburn (P-Man) might be able to help you out with a set of Dodgem ROMS to swap in - drop him an email and ask if it is a straight ROM swap and if he can burn some EPROMS for you for it.
Paul.

Lol, I bought the The Invaders pcb from him last week.
Thanks for the tip Paul.

[Belike]

ok bela, i've just checked your defender pictures and compared them to my machine. everything seems to be exactly like it is supposed to be. so remove that atari 2600, solder in a battery and give it a try. hell, you can even give it a try without the battery to find out what's happening ...

Ok Ully, I will try it.
 [Noob question mode on]
After disconnecting the Atari 2600 it should be work with the original pcb right away without any other things to do, or I will have to connect something else between the monitor and the pcb?
 [Noob question mode off]

[level42]

Can one of you guys PLEASE choose another Avatar ?? It's driving me nuts to see the same one for two people !!!!

[Superully]

[Noob question mode on]
After disconnecting the Atari 2600 it should be work with the original pcb right away without any other things to do, or I will have to connect something else between the monitor and the pcb?
 [Noob question mode off]

[noob answer mode on]

don't know how the monitor is connected. it should get its power from the power supply (probably around 120 volts). And of course the pcbs need to be connected to the monitor as well, don't know where that connector is. Perhaps you could post another picture of the monitor chassis ...

[noob answer mode off]

[PaulSwan]

Re:Avatar
I registered before Bela did

[DarthNuno]

Re:Avatar
I registered before Bela did

I confirm 

[Belike]

Can one of you guys PLEASE choose another Avatar ?? It's driving me nuts to see the same one for two people !!!!

My avatar is quite different from Paul's.

[Belike]

I did what Ully advised, removed that Atari 2600 and connected the pcb back to the monitor chassis.
The neckboard looks a bit strange to me, I think it's some kind of a hack.





After I connected the neckboard back to the monitor, I switched on the beast and took 2 steps back
I've heard some starting signals from the game, but only this appeard on the screen:

[Belike]

I put the machine in front of a big mirror and started to adjust the pots, all of them seemed to be working (colors, screen positioning, focus), but nothing more happened.


I also tried to adjust that big black pot (I guess it's the monitor sync), the running lines stoped, but nothing more

Here is a video:
http://www.youtube.com/watch?v=VIllG9XZnK4

Is it a pcb or monitor problem?

[level42]

O-my-god......I've seen some hacks, but this beats about everything !!!

That you even have the guts to power that up !!!

And it actually gives a picture too !!!! 

The problem is 100% a sync problem, but ......holy macerony are you serious you want to keep it running like this ?

I think they put a different tube in that cab, one with a different neck-pin configuration.
That's why they used that extra neck-board.

BUT you lucky devil seem to have a working Defender PCB set there !! Afaik it is first showing the red/orange "rug" patterns (tests) and then seems to go to the atract screen....

You say the running lines stopped but on the video I still see a sync problem... ?

[Etienne MacGyver]

O-my-god......I've seen some hacks, but this beats about everything !!!

That you even have the guts to power that up !!!

Hungarian Power !    

yeah bela, you sure got balls !  

[level42]

I think they ran Tchernobyl with the same kind of hardware ?

[PaulSwan]

From vague memory, I thought Defender outputs V/H split sync and in converted cabs I've seen the monitor sync boards hacked to accept the more usual composite sync. Thus, you may need repair the sync board back to original. The schematic for the monitor is available online for comparison.

That is indeed one super hack job on the neck board. Plan on fixing that

[Superully]

this seems to be the bookkeeping screen out of sync - but you're a lucky bastard because the boards seem to be working. good luck with the monitor, unfortunately this is out of my league ...