Atari Paperboy

Since you are missing audio, you might want to consider making an audio probe.


This will enable you to probe all the audio signals before they they hit the TDA2002's and go out to the AR3.

Since the coin switches are not working, you might want start by probing T1AUD while you activate the coin switch and see if you get anything.
Screenshot_20240706_125501_Docs Viewer.jpg
 
Through friends with the California Extreme I'm going borrow a working cpu and first start by swapping roms. At least I should be able confirm or eliminate them as the problem.
 
I can say that mine has a full set of new roms and has the problems yours does.
I've tried new Pokeys and new Yamaha chips too.

Worth a shot of course, but I think replacing sockets and maybe a few LSxxx chips is going to be in both of our futures.
 
You have checked your dip switches, correct? I'm not home to see what "demonstration mode" is on my Paperboy. But it sounds like something that could lock out the coin switches.

Screenshot_20240707_064351_Docs Viewer.jpg
 
I can say that mine has a full set of new roms and has the problems yours does.
I've tried new Pokeys and new Yamaha chips too.

Worth a shot of course, but I think replacing sockets and maybe a few LSxxx chips is going to be in both of our futures.
It's strange that you two have the exact same problem. :unsure:

When I got my Paperboy, it was completely non working. I had to replace all the sockets, burned new roms, and gave it some fresh caps. But then, it fired right up.
I don't envy anyone replacing those sockets. There are a lot of them.

I friend of mine was missing half the sounds on their Paperboy, it ended up being a bad TDA2002. There is one TDA2002 for each channel (speaker). So to loose all sound, both would have to be bad. It's more likely that the +15v, and -15v are missing.
 
Not quite the same problem. He will get sound intermittently, I have none all together. I will be testing my roms in a known working board tomorrow. One to know if they work. I was also to verify my slapstic works as I tried one of those new multi game replacement chips and there was no difference. I also have checked and I do have the +15 and -15 volts in the amp section so there is power there.
 
Latest update. Installed known working cpu board with paperboy roms and everything worked. Self test went through all the sound tests and the amps on the AR board worked fine. It coined up and I played a few games.

I then installed my roms in another good spare board that had championship sprint roms in it along with the pb slapstic. Interestingly enough when the board was powered up in self test the Yamaha test would produce tones, yet when it moved on to the pokeys and speech there was nothing. Coin switches were also inop. as before. I tried charging out rom for rom hoping I might find one bad but no luck, still the same results. I may have more than one bad rom so I'm looking into ordering a new set. Since these are borrowed boards I don't want to be removing the roms any more than necessary. Owner confirmed it is a good working board.
 
The first known cpu board you tried is with a different set of roms than yours?

Switching to yet a different board with your roms introduces another variable, unless you tried the second board again with whatever roms were in the first board and then confirmed them working- again.

I would guess that swapping even good roms in and out of sockets known to go bad could be a problem.

I may need to just put the meter on continuity test and poke through all the rom sockets too.
 
The roms and slapstic used in the working borrowed championship sprint board were off my board. The two boards lent to me are from a collector so these are both good boards. They both are sprint boards, one with pb roms and the other with sprint roms that I removed and installed the roms off my board that has the problems. With my roms in the good board it had the same issues, no sound or coin up. It would boot in play mode just like my board did. So what are the odds of two different boards having the exact problem? Not very likely.

I could pull all the roms off the pb board that works great in my cabinet but I'm not willing to risk messing up a good working board. What I am going to do is pull my roms and compare checksums between what mine read and what's on the label of the ones on the working board. I also have ordered a new set of roms to have if needed. I'll post what I find with the checksum comparison.
 
Back
Top Bottom