Atari vector test rigs?

GaryMcT

Active member

Donor 2011
Joined
Jun 4, 2009
Messages
2,346
Reaction score
24
Location
Carnation, Hawaii
Anyone have good shots of theirs? I'm looking to set one up, specifically to work on an Asteroids Deluxe board for now. I need to get my spare monitor working first though (so that the oscope can be used as something other than a monitor. :) )
 
Imagine the floor behind an Atari vector game... yep, that's what mine looks like ;) .

DogP
 
This will probably not help you. But this is my rig.
pat9000%20005.jpg


pat9000%20006.jpg
 
Anyone have good shots of theirs? I'm looking to set one up, specifically to work on an Asteroids Deluxe board for now. I need to get my spare monitor working first though (so that the oscope can be used as something other than a monitor. :) )

I got a couple tektronix X-Y displays a while back... tuned one in for B&W signal levels and the other one for Color... lets me use my scope as a scope ;)
 
While we're on the subject, did anyone ever write up what can/can't be run unplugged while testing deflection boards?

I'm currently tracking down a problem on some deflection boards, and it's rather difficult to get a probe in there with everything plugged in, which has reduced me to trial/error and/or comparing components in-circuit between known good units and defective ones. There's gotta be a more efficient way...

I usually start with the bare deflection board connected to nothing other than the bit of wiring that goes to the power transistors. After I've verified the low voltage part of the supply is working, I hook up the rest of it and work my way through by trial/error/symptoms.

But it would be a lot more convenient to run it on a bench for more than just low voltage testing. It'd be pretty easy to put a set of "spare" power/deflection transistors onto a heatsink, maybe add some sort of dummy load for the yoke... (Can I cheat with a suitable pair of resistors, or do I have to worry about impedance matching and find a suitable inductor? And do I need to bother, for example, with the connectors associated with the neck board and/or the connection to the HV supply?)
 
Back
Top Bottom