RE: CAT box clock source

>From what I remember of the CB documentation on setup. You pull the
processor, connect the edge connector to the test point (which just brings
most of the uP lines out to the edge of the board). You don't jumper the
clock, the appropriate clock was routed to the edge for you. On Battle Zone
at least that is the o2 clock.

I will scan in the setup section of the CB docs tonight and ftp them to
spies.

If I get time I will shoot for scanning the entire doc in the next week (a
couple pages a day).

David

> ----------
> From: aek[SMTP:aek]
> Reply To: vectorlist@spies.com
> Sent: Monday, January 12, 1998 1:08 PM
> To: vectorlist
> Cc: aek
> Subject: CAT box clock source
>
>
> I wanted to ask someone who has used one about this..
> To use it, you had to pull the uP out of the game
> board and jumper the processor clock input to the ph2
> clock output? The schematics for two games that I
> looked at weren't really clear if it were possible
> to jumper the clocks.. Or, did the clock source vary
> depending on board type? It looks like it would be
> possible to tell by pin 6 of the connector (CBCLKDIS)
> if the CAT box uP clock was internally or externally
> sourced.
>
> Did someone say that they had the manual for the
> HP 5004? I haven't used signature analysis before
> for debugging.. Does it just recognize a repeating
> pattern at a particular node in a circuit, or does
> it generate a fixed 16 bit value based on some
> number of input states?
>
Received on Mon Jan 12 13:49:04 1998