Paperboy question

Riptor

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I just picked up a paperboy im going to attempt to ressurect. Its mostly complete but I need to make a harness for the CP and repair some other wiring.

I was looking at the wiring diagram and its showing two volume pots on the service panel. I looked at mine and there are three wires snipped off and they are the wires indicated in the diagram as the second volume pot. The service panel itself only has one pot installed and doesnt have a spot for another one. Can anyone look at their paperboy and see if there is a second pot mounted in another location?
Also, it appears it uses an AR III and one additional switcher with single +5 output, is this correct? The power section on this machine is really hacked up so I need to improvise something until I can get a good AR III board.
 
Also, it appears it uses an AR III and one additional switcher with single +5 output, is this correct?

I can confirm that this is how mine is/was set up. Not sure about the other question as mine is currently torn apart to be restored.
 
So they just left these wires flying in the wind? The loose hanging wires and the fact that the schematic shows a pot connected to these wires is why I questioned it.
Very well, carry on.
 
Also, it appears it uses an AR III and one additional switcher with single +5 output, is this correct? The power section on this machine is really hacked up so I need to improvise something until I can get a good AR III board.

This is correct. Atari used a small +5V power supply to provide +5V for the CPU board. The video board (the lower board of the two on the back door) gets its voltages (including +5V) from the ARIII.

Later on, a lot of people just swapped in a full fledged switching power supply in place of both. Atari even ditched the +5Vsupply/ARIII combo for a switcher on later system 2 cabs. I have a Championship Sprint (same cabinet style) that has a factory installed switcher running everything.

I am a fan of the ARII, but I don't like the ARIII. It doesn't seem to be quite as reliable.
 
Well the +5 on the ARIII was dead so I just jumped the +5 from the switcher down to the video board. The game is working great now and ready to go in the row. I have some new pots coming for the controller from Dave at ram controls.
Game seems to run fine just off the one switcher so I will probably leave it like it is.
 
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Well the +5 on the ARIII was dead so I just jumped the +5 from the switcher down to the video board. The game is working great now and ready to go in the row. I have some new pots coming for the controller from Dave at ram controls.

Newer switcher or Original? The original is only rated for a couple amps IIRC.
 
this is what I will probably have to do for my game as well, but does using the switcher and bypassing the ARIII effect the audio?
 
Im still running the ARIII, just using the switcher for the +5 on the video board. My ARIII is working except for the +5 line.
 
I simply left the ARIII connected as normal and ran a ground and +5 from the switcher to the test point tabs on the lower left of the video pcb. I did it as a temporary fix to test some boards out but its working great so I think im going to leave well enough alone.
 
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