Testing BZone on a Scope?

Scucci

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I've tried hooking the leads to the X and Y out test points, I'm still not getting anything recognizable on the scope.

I have the board hooked up to a switcher since the original power supply needs to be repaired/rebuilt. Hooked up +5 and GND on both boards, connected the leads to X and Y outs... The LEDs are both on, and there's SOME activity on the scope, but just garbage.

The scope is set to XY mode, but I think my choice of test points could be wrong? Is there somewhere else they should be hooked to?
 
That is the correct test points, adjust your channel settings. I can't be more specific because each scope is a little different. IIRC you want each channel running at 1v to bring it to a usable pic on the scope.
 
That is the correct test points, adjust your channel settings. I can't be more specific because each scope is a little different. IIRC you want each channel running at 1v to bring it to a usable pic on the scope.

Crap... that's not good.

The boards just need +5 and GND to run enough to see right?
 
The pinouts have +5v, -5v, -22v, +22v, +12v listed... basically standard A/R II voltages.

I doubt it will work with just +5v connected since the voltage swings in the X & Y direction are to ~11v or so.
 
You need +5, +22 and -22, the +/- 22 run the X-Y outputs after being regulated to +/- 15 on board.
Dick

Oh, thank goodness... so there is a chance that the boards might actually be good. I figured it would work like my Pole Position does (did) where I could see what's going on with just the +5 and GND. Good to know... ... now I need to get my PS rebuilt. Nice.

BTW, Dick, I have a stack of Pole Position boards here with your name on them... ... lucky you.
 
Sweet signature! commodore 64 speak i presume unless it was used on many similar iterations, thought it might have been *.* like start.exe any who,

would make a cool little tshirt
 
Sweet signature! commodore 64 speak i presume unless it was used on many similar iterations, thought it might have been *.* like start.exe any who,

would make a cool little tshirt

It merely shows the poor integration of floppy discs into the "OS" of the C64. What is 8, what is 1, why comma's ?

The Atari 8-bit line was far superior on this: it had a proper Disk Operating System.

Sorry to get off topic... :D
 
It merely shows the poor integration of floppy discs into the "OS" of the C64. What is 8, what is 1, why comma's ?

The Atari 8-bit line was far superior on this: it had a proper Disk Operating System.

Sorry to get off topic... :D

8 is the device number (Disk Drives were 8,9,10 and 11).
1 Means to reload the file back into the same memory location it was saved from.
Commas are Cool!
 
My TRS-80 CoCo had a far better disk system than the Commodore. Too bad it didn't have the video and sound capabilities of the C64... :(
 
I remember getting "COMPUTE!" magazine and spending the whole day typing in those programs just to see a stupid ball bounce across the screen or something stupid like that. We had a VIC-20 and had to plug in the 64K ram cartidge to run most of those progs. Then we would back them up on the cassette tape. Computers sucked back then.
 
It merely shows the poor integration of floppy discs into the "OS" of the C64. What is 8, what is 1, why comma's ?

The Atari 8-bit line was far superior on this: it had a proper Disk Operating System.

Sorry to get off topic... :D

Load "*" -star means first program on the disk
,8,1 -8 means load of disk, and 1 means run program.
 
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