If I actually had hair, I would have ripped it all out buy now! I’ve been a tech for years but this one is quite challenging to say the least. After much research, there isn’t really much info or resources available for this model. I would say it’s a fairly rare machine.
Im seeking out the advice of the experienced old school techs who would most likely sort this with their eyes shut…
Your help will be much appreciated !!!
When I first acquired this machine, it was badly corroded, missing the counters and the 5 volt power supply. So everything was Cleaned, Chromed, 2 pac painted, LED’ed and reassembled. After viewing all the forums previous posts on models similar, I have tested all voltages, switches and connectors, etc…
In respect of the lost counters, I used 4 x 180 ohm and 1 x 100 ohm as a dummy load. The physical counters are not required for home use. This was successfully done by another member of the forum. Cheers for the tip!
The last issue is the Comparitor. A CC-16 unit. I found it with the power supply cut and tied back. I assumed the machine may have been working before and left it as it was. It’s got me thinking now it may be the culprit. So I hooked up power and discovered it was not only dead but molested inside. Can this device be omitted and bypassed? Coins still register and dump into the hopper. Can this device cause the machine to stay locked in TEST mode? Also, no obvious errors generated whilst Comparitor powered down…
I have also tried to reset and default the machine from methods listed from all the Sigma manuals, which have failed to work. So this is the unorthodox method I used to get the machine to reset and clear in a 2 step order…
(1) Powered down via plug, Short out the Super Cap. Lock up front door. Plug in power. Clear RAM error via Key reset. Note: Game activates with ‘Tilt’ and power up fault indication in window ‘10’. Drop a coin and start a game. All errors in window ‘10’ cleared. Everything else operates normally except the ‘TEST’ message alternating over the red LED display, no coin payout function, a fault light on the tree topper and the dreaded ‘Tilt’ displayed next to the coin slot. Next…
(2) Power down again, move one dip switch. Lock up door. Power up. Clear DIP Switch error via ‘Key Reset’. Note: ‘Tilt’ error and Red tree topper light cleared. Machine functions in the same manner without any errors displayed. Except for one thing… Still stuck in ‘TEST’ mode… In this TEST mode, all accounting, error logging and coin payouts are deactivated.My speculation, as it’s an early Japanese model built in 1991, I think there may be another sneaky ‘reset’ combination or method that wasn’t carried through to the newer models. It would be much appreciated if anyone can advise a theory or method to help solve this issue!!! Im open to all suggestions…
I can also post up more photos if requested…
Please see all photos below: