Hello,
I am quite new to Williams SS and I have a Time Warp. The problem that I am facing is that the machine always boots into diagnostic mode and not game over.
Any suggestions on how to rectify?
Thanks!
Mark
Need help with Willaims Time Warp (System 6 CPU)
- cap
- MAACA Mega Contributor
- Posts: 1215
- Joined: Wed Apr 05, 2017 8:19 pm
- Location: Laval
- Been liked: 30 times
Re: Need help with Willaims Time Warp (System 6 CPU)
Stuck service button maybe.
Judge Dredd, Road Show, Last Action Hero, Rocky & Bullwinkle, Stargate, F14 Tomcat
-
- MAACA Super Contributor
- Posts: 520
- Joined: Fri Sep 17, 2010 9:15 am
- Location: Collingwood , On
- Been liked: 14 times
- Contact:
Re: Need help with Willaims Time Warp (System 6 CPU)
most likely a bad battery holder if not a 5101 ram.
Providing hard to find pinball i.c.s. eprom service and more
-
- MAACA Super Contributor
- Posts: 309
- Joined: Thu Oct 04, 2012 11:33 pm
- Location: Montreal
- Been liked: 1 time
Re: Need help with Willaims Time Warp (System 6 CPU)
Thanks for the info - I will try later this evening when I get home.
The battery themselves are new, but it looks like the battery holder was replaced at some point although it is hard to tell. The 3 batteries are vertical with positive end faced down.
The battery themselves are new, but it looks like the battery holder was replaced at some point although it is hard to tell. The 3 batteries are vertical with positive end faced down.
- sylvain
- MAACA Mega Contributor
- Posts: 3577
- Joined: Thu Nov 19, 2009 7:39 am
- Location: Ottawa, Ontario
- Has liked: 57 times
- Been liked: 59 times
Re: Need help with Willaims Time Warp (System 6 CPU)
To get out of audit (assuming the memory protect and the 5101 CMOS RAM chip are good), open the cash door, power the machine ON, then OFF, and immediately back ON.
You can confirm that the battery holder and batteries are good by using a voltmeter (with the machine OFF) and confirming the DC voltage supplied by the batteries is 4.5 to 4.8 volts arriving on the MPU from the battery pack. Refer to the manual/schematics for proper location of measuring points (two specific pins of the battery holder connections).
The original battery holder is often bad if batteries leaked in it in the past at some point.
Corrosion often eats/breaks-off one or more battery button contact in the battery holder.
Good luck!
-Sylvain.
You can confirm that the battery holder and batteries are good by using a voltmeter (with the machine OFF) and confirming the DC voltage supplied by the batteries is 4.5 to 4.8 volts arriving on the MPU from the battery pack. Refer to the manual/schematics for proper location of measuring points (two specific pins of the battery holder connections).
The original battery holder is often bad if batteries leaked in it in the past at some point.
Corrosion often eats/breaks-off one or more battery button contact in the battery holder.
Good luck!
-Sylvain.
Looking for Bally Star-Jet, The Wiggler, Williams Magic City, Grand Lizard, Swords of Fury, 1986 Pinstar Gamatron, and a few others.
Collecting & repairing electro-mechanical and solid state pinball machines with quality and care for 40+ years already.
Serious and fun hobby, powerful nostalgia !
Collecting & repairing electro-mechanical and solid state pinball machines with quality and care for 40+ years already.
Serious and fun hobby, powerful nostalgia !
- OTTOgd
- MAACA OG
- Posts: 6459
- Joined: Wed Nov 18, 2009 10:45 pm
- Location: Brampton, Jewel of the Golden Horseshoe
- Has liked: 91 times
- Been liked: 31 times
Re: Need help with Willaims Time Warp (System 6 CPU)
Not all three batteries are supposed to 'face down'. That will ruin the power flow. Ensure they're correctly facing + and -.mbudman wrote:Thanks for the info - I will try later this evening when I get home.
The battery themselves are new, but it looks like the battery holder was replaced at some point although it is hard to tell. The 3 batteries are vertical with positive end faced down.
Post a couple photos of your battery holder with and without batteries.