Hi all,
A couple of pictorial updates on a couple of the cabs. First up is the Crystal Maze and some before and after picks. This is a quick and dirty restore to make it look presentable. These Barcrest machines are a bugger to work on but here are some tips to pass on:
Nothing in terms of the glasses or control panel is accessible from the outside, you need to unbolt it from inside the back of the cabinet.
Don't be fooled by the glasses and their surrounds, they don't slide out like pinball back glasses. The best thing to do is remove the glasses in their frames by unscrewing them from the inside of the cabinet. The two glasses and the control panel are hinged, and it's easy to unbolt these small hinges and lift out the glasses in sections. This is the only way to access the control panel.
The trackball is a Wico unit. You can buy rebuild kits online. Mine was gummed up and didn't move at all. I cleaned the rust off the steel rollers with a scotch pad and lubricated the bearings. The shell and ball went through the dish washer. It moves freely now.
The MPU4 CPU needed a new battery and a small acid damage repair. The monitor was a crap job. It needed a new flyback (my last one for a K7000) and a cap kit.
I recapped the MPU4 PSU for good measure. The 12V rail is a little high but it's worked long enough at 15V so I'll leave it alone for now.
The dome is amusing. I put in new foil strips but I'm suffering the same problem the game show had in that they stick to either the floor or sides of the dome!
The game plays fine but has no coin mech for now.
If anyone needs manuals, let me know.
On to Silent Scope. This is Andyman's Frankenscope. The harness has had a haircut to remove a couple of feet of spare wiring and the dreaded molex connectors that joint the original harness. This has conclusively cured the jumping scope problem. The machine is running a Silent Scope 1 board set picked up from ebay and a chap who has de-suicided it.
Great fun.
Oh and Purity's jamma cab now finally has a VGA gamebox monitor and a multiway PCB in it.
