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Anyone here done up an F-14 / a System 11A before?

PBrookfield

PBrookfield

Resident Uneconomical Repair Representative
5Years
Joined
Mar 23, 2017
Messages
1,341
Location
Wolverhampton, UK
THE PIN NOT THE PLANE

I doubt it because I don't see many Sys11 games in many sigs here and even then I think only a subset of those guys will have done this too - but...

Anyone here shopped one of these out AND still have BOM (list of capacitors, resistors etc). kicking around on their computer they could post?
Asking out of sheer laziness. Alternatively, any current owners that would like me to post up a verified and up-to-todays-tech list once I'm done?

I have the manual and it does list all of the above but frankly, I know better than to trust the manual to be accurate on the face of it - unless someone here knows it's spot-on? I've already ignored the manual-recommended list for transistors, for example, electing for bits that weren't wrong for the job in the first place.

Don't want to buy a kit as I like to select my own parts out + get them cheaper from wholesalers.
 
PBrookfield said:
THE PIN NOT THE PLANE

I doubt it because I don't see many Sys11 games in many sigs here and even then I think only a subset of those guys will have done this too - but...

Anyone here shopped one of these out AND still have BOM (list of capacitors, resistors etc). kicking around on their computer they could post?
Asking out of sheer laziness. Alternatively, any current owners that would like me to post up a verified and up-to-todays-tech list once I'm done?

I have the manual and it does list all of the above but frankly, I know better than to trust the manual to be accurate on the face of it - unless someone here knows it's spot-on? I've already ignored the manual-recommended list for transistors, for example, electing for bits that weren't wrong for the job in the first place.

Don't want to buy a kit as I like to select my own parts out + get them cheaper from wholesalers.
Click to expand...
I stripped and shopped topside of playfield on one a few years back. Might have photos somewhere.
 
Hah - the sentiment is understood about not fixing what isn't broken... I just generally tend to ignore it :cool:

I've done entire motherboards-worth of desolder and resolder before with good success - I see it as preventative maintenance on parts that have been exposed to abusive loads - this CPU board has burns by one of the transistors extending to the resistors, unsurprisingly, and the GI connector on the power board qualifies as Extra Crispy - and replacing parts that originally had a service life of 10 years under heavy, continuous load and are now pushing 30.

And I never do repairs with the intention of just selling them, but then again I've never done it on an item of this value, so improving resale value is not a bad thing. And hey, the more bullet-proof I can make it, the better it could be for a trade-pin in a couple of years... just as soon as I manage to roll over the scoreboard on a /10 score ROM first :D
 
Hi,

I'm not sure if I qualify as having 'done up' a (Williams) F-14, but I took on the better of the two owned by my former employer when it had finished its 'tour' of our operating sites. One thing I'd suggest, if it isn't mentioned in those topics, is adding fuse protection for the 25 and 50 volt secondary windings/bridge rectifiers. Williams didn't do so until the 11B games, e.g. Big Guns, so earlier games have a possible fire risk if this hasn't been done.

'scuse my asking, but what's a /10 score Rom? The original L 5 program that mine had could sort-of-cope with scores of over 10 million; it displayed 0,000,000 upon rolling over (as if there was a 1 off to the left that wasn't visible), and could keep track of further scoring. Though it gave scoring awards at the threshold(s) 2nd time around. And the final score would be shown in the high score table as 9,999,999.
 
Jay Walker said:
Hi,

I'm not sure if I qualify as having 'done up' a (Williams) F-14, but I took on the better of the two owned by my former employer when it had finished its 'tour' of our operating sites. One thing I'd suggest, if it isn't mentioned in those topics, is adding fuse protection for the 25 and 50 volt secondary windings/bridge rectifiers. Williams didn't do so until the 11B games, e.g. Big Guns, so earlier games have a possible fire risk if this hasn't been done.

'scuse my asking, but what's a /10 score Rom? The original L 5 program that mine had could sort-of-cope with scores of over 10 million; it displayed 0,000,000 upon rolling over (as if there was a 1 off to the left that wasn't visible), and could keep track of further scoring. Though it gave scoring awards at the threshold(s) 2nd time around. And the final score would be shown in the high score table as 9,999,999.
Click to expand...
Yeah, the bridges are unfused. I will definitely be doing that.

Some enterprising fellow on a forum (http://pinhacks.com/) lists some hacks that modify the production L-1 ROM to divide all scores by 10 - so the maximum value displayed could be 99,999,999. Apparently he includes appropriate fixed for the replay match, and the high-score display. Gives the game a lot more headroom for huge scores without ending up with rolled-over scores on the scoreboard.
 
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