Just a quick follow up note. On my 1084S, it's pot R225, "H-HOLD" and according to my DMM, it's 30K. I mounted a 25K pot (more than adequate) externally on the casing. Works well. I can't always get Tron to sync up, but I am also using boards that don't work 100%. Usually I can get close enough though. I just ran a few lines through the plastic case and mounted it using a bracket and a small bit of prototyping board. JB --James Bright www.QuarterArcade.com Restored Arcade Games for your Home
-----Original Message----- From: owner-techtoolslist@flippers.com [mailto:owner- techtoolslist@flippers.com] On Behalf Of James Bright Sent: Tuesday, March 02, 2004 10:14 AM To: techtoolslist@flippers.com Subject: Re: Follow up 1084s question
You didn't by chance see a similar pot labeled H-FREQ? I believe that's what it was labeled on the board itself.
Thanks for the link. If I have time, I'll see if I can set something up this weekend (going out of town on business so it may be a couple of days).
JB
--James Bright www.QuarterArcade.com Restored Arcade Games for your Home
----- Original Message ----- From: "Franklin Bowen" <Franklin@Bowen.net> To: "James Bright" <james@quarterarcade.com>; <techtoolslist@flippers.com> Sent: Tuesday, March 02, 2004 9:59 AM Subject: Re: Follow up 1084s question
I agree, outside of sync problems, the monitor works great for vids. Let me know how it works as I'm interested too. Looking at the schematics I found (http://staff.washington.edu/rrcc/uwweb/1084P/):
Horiz. Sync, R437, 22K Vert. Sync, R331, 47K
HTH
At 07:00 AM 3/2/2004, James Bright wrote:
This requires removing the case and finding the H.FREQ pot.. this is often near the front of the tube on the right (if you looked from the back).
I had this just happen with Tron (had to build a simple circuit to combine /H and /V sync too...).
I put everything back together and tested it with another JAMMA board (MKII) and it wouldn't sync. I'm thinking I'm just going to mount that pot on the case so that I don't have to keep pulling it apart. Anyone done that before? It's a tiny trim pot and I had this idea after I reassembled everything. Anyone know what the value of the pot is?
Otherwise using this monitor has been great.
JB
--James Bright www.QuarterArcade.com Restored Arcade Games for your Home
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