Pinball Nirvana Home Page

Go Back   Pinball Nirvana Forums > Real Pinball > Maintenance & Repair

Maintenance & Repair Discuss and offer tips on real life machines.

Reply
 
Thread Tools Search this Thread
  #1  
Old 11-10-2015, 06:47 PM
ganastas ganastas is offline
Inserted Coin
 

Join Date: Sep 2014
Posts: 7
Credits: 4,321.09
Thanks: 0
Thanked 1 Time in 1 Post
Rep Power: 0
ganastas is on a distinguished road
Default Oops, I think i fried my Black Knight 1980

Hi all,

My machine was running perfect until my move. When I tried and set it up at my new place I hooked everything up except the two large connectors in the head I got mixed up. And there the only two that will engage with each other (square peg round hole thought). Two large white connectors and on the head side one black and one white. Being in a rush I forgot the head end has a black stripe on one of the white connectors. Well I mixed them up and powered it up. Many solenoids locked on then I shut it off. tried it twice again same result. Realizing what I did wrong I corrected the install and powered up. Nothing just a "0" on the mpu no boot. Also noticed top left chip on mpu to hot to touch.

I'm sure this has happened to many other dumb dumbs like myself. As it can happen if you don't pay attention. Any body seen the outcome from this incident before?

Thanks..
Reply With Quote
  #2  
Old 11-10-2015, 11:16 PM
sleepy's Avatar
sleepy sleepy is offline
Pinball Wizard
 

Join Date: Aug 2004
Posts: 4,097
Credits: 396,124.31
Thanks: 711
Thanked 539 Times in 484 Posts
Rep Power: 59
sleepy is a glorious beacon of lightsleepy is a glorious beacon of lightsleepy is a glorious beacon of lightsleepy is a glorious beacon of lightsleepy is a glorious beacon of lightsleepy is a glorious beacon of light
Default

I'm not a pinball tech, but I found this:

https://groups.google.com/forum/#!to...ll/2LP4bqu_VtE

EDIT: The following might not apply to Williams circuits, and is not from the Google Groups link. This is my personal experience.
I had a Yamaha keyboard with a bad voltage regulator. It has an On/Off switch Pin 4 on a 4 pin package. I replaced it and got nothing until I accidentally shorted Pin 4 to ground. Then it worked. So as a last ditch suggestion with No Guarantees, if there is a voltage regulator with an On/Off switch pin associated with those connectors, UNPLUG THE MACHINE and try shorting it or the companion capacitor to ground. MAKE SURE THE POWER IS OFF.

Last edited by sleepy; 11-10-2015 at 11:43 PM.
Reply With Quote
  #3  
Old 11-11-2015, 11:52 AM
pinballdaveh's Avatar
pinballdaveh pinballdaveh is online now
Pinball Technician
 

Join Date: Aug 2012
Location: poconos
Posts: 854
Credits: 52,525.74
Thanks: 205
Thanked 300 Times in 256 Posts
Rep Power: 16
pinballdaveh is a jewel in the roughpinballdaveh is a jewel in the roughpinballdaveh is a jewel in the roughpinballdaveh is a jewel in the rough
Default

what a mistake on williams part to design a wire termination jack connector system that would allow this to happen. instead of using 2 connectors the same size why not use 4 connectors all with different amount of pins, different sizes, and keyed different. that should make connector assembly mistakes to a minimum. its hard to imagine what voltages going to parts of the boards that dont belong. sorry to say this but the cpu, power supply, and driver boards should be sent to a board tech or be replaced. sounds and speech boards might have been spared because they arent involved directly with the playfield.
Reply With Quote
  #4  
Old 11-11-2015, 02:50 PM
ganastas ganastas is offline
Inserted Coin
 

Join Date: Sep 2014
Posts: 7
Credits: 4,321.09
Thanks: 0
Thanked 1 Time in 1 Post
Rep Power: 0
ganastas is on a distinguished road
Default

Thanks for the responses,

I'm going to try and repair it myself. I'm pretty good with an soldering iron. I'll replace those parts in the first reply and report back on my results. This will take a while as I can do all this at work in my down time.

Thanks again, and if any more ideas post um up.
Reply With Quote
  #5  
Old 11-11-2015, 03:42 PM
Ike Savage's Avatar
Ike Savage Ike Savage is online now
Pinball Porcupine
 

Join Date: Jun 2003
Posts: 3,163
Credits: 264,245.29
Thanks: 948
Thanked 571 Times in 443 Posts
Rep Power: 52
Ike Savage is a name known to allIke Savage is a name known to allIke Savage is a name known to allIke Savage is a name known to allIke Savage is a name known to allIke Savage is a name known to all
Default

hopefully really good with a soldering iron in terms of working with IC's and other heat-sensitive components. also equipped with the right testing and diagnosis gear. so basically a board tech yourself?
Reply With Quote
  #6  
Old 11-11-2015, 07:09 PM
ganastas ganastas is offline
Inserted Coin
 

Join Date: Sep 2014
Posts: 7
Credits: 4,321.09
Thanks: 0
Thanked 1 Time in 1 Post
Rep Power: 0
ganastas is on a distinguished road
Default

No, not a board tech. But I'm a Aircraft Maintenance Engineer Avionics actually. So I've done my fair share of soldering over the last 19 years. I just need the help on which components I need to replace after my HUGE mistake (feel like such a dummy). I just ordered all the items I require and I'm going to replace them with IC sockets as well (just in case it happens again). We have all the items at work to replace this properly, anti static work bench and all. Just hope its the correct ones that need replacing. As IC 7 was the one smoking hot.
Reply With Quote
The Following User Says Thank You to ganastas For This Useful Post:
Ike Savage (11-11-2015)
  #7  
Old 11-11-2015, 08:16 PM
sleepy's Avatar
sleepy sleepy is offline
Pinball Wizard
 

Join Date: Aug 2004
Posts: 4,097
Credits: 396,124.31
Thanks: 711
Thanked 539 Times in 484 Posts
Rep Power: 59
sleepy is a glorious beacon of lightsleepy is a glorious beacon of lightsleepy is a glorious beacon of lightsleepy is a glorious beacon of lightsleepy is a glorious beacon of lightsleepy is a glorious beacon of light
Default

I seem to remember that the early SS machines went to hard soldered ICs because they had problems in the field with warm IC's popping out of their sockets.
Reply With Quote
  #8  
Old 11-11-2015, 11:02 PM
Ike Savage's Avatar
Ike Savage Ike Savage is online now
Pinball Porcupine
 

Join Date: Jun 2003
Posts: 3,163
Credits: 264,245.29
Thanks: 948
Thanked 571 Times in 443 Posts
Rep Power: 52
Ike Savage is a name known to allIke Savage is a name known to allIke Savage is a name known to allIke Savage is a name known to allIke Savage is a name known to allIke Savage is a name known to all
Default

Quote:
Originally Posted by sleepy View Post
I seem to remember that the early SS machines went to hard soldered ICs because they had problems in the field with warm IC's popping out of their sockets.
i remember that as being a big problem with apple ]['s for awhile. every couple days or so you had to pop the lid and gently press them all down. no vibration necessary!

but maybe since then (around 1980), sockets and IC's are better engineered. *shrug*
Reply With Quote
  #9  
Old 11-12-2015, 09:58 AM
pinballdaveh's Avatar
pinballdaveh pinballdaveh is online now
Pinball Technician
 

Join Date: Aug 2012
Location: poconos
Posts: 854
Credits: 52,525.74
Thanks: 205
Thanked 300 Times in 256 Posts
Rep Power: 16
pinballdaveh is a jewel in the roughpinballdaveh is a jewel in the roughpinballdaveh is a jewel in the roughpinballdaveh is a jewel in the rough
Default

Early SS CPU and MPU boards used ic sockets made by scanbe. these sockets were garbage. poor pin connections were made at the sides of the ic pins instead of the flat front and back sides of the ic pins. over time the connections would loosen and cause problems. these ic sockets were mostly used for game program eproms but might have been used for PIA's and MPU chips also. with the board removed from the machine , if you grip the ends of the chip with your fingers and gently rock the chip back and forth and if the chip comes out easily ( being very careful not to damage the chip pins ) chances are its in a scanbe or a defective socket.
Reply With Quote
The Following User Says Thank You to pinballdaveh For This Useful Post:
sleepy (11-13-2015)
  #10  
Old 11-22-2016, 12:31 PM
ganastas ganastas is offline
Inserted Coin
 

Join Date: Sep 2014
Posts: 7
Credits: 4,321.09
Thanks: 0
Thanked 1 Time in 1 Post
Rep Power: 0
ganastas is on a distinguished road
Default

Ok, I'm back. been a while. But I carried out the repair as above hooked it all up. Wish I had better news, however the gp lights come on and the board goes into diagnostic mode always showing ic 13 is bad. Better then what is used to do. Opened coin door and turned off and on twice no fix as the battery pack in not installed. What to you guys think? Should replace ic 13 and 16? Not sure if this board can carry out its full diagnostic will the ram failing. Or I'm I going to end up replacing every chip lol.. Thanks your help.

Reply With Quote
  #11  
Old 11-23-2016, 05:11 AM
Coil_Smoke's Avatar
Coil_Smoke Coil_Smoke is offline
Pinball Pusher
 

Join Date: Dec 2011
Location: Planet Dirt
Posts: 1,002
Credits: 103,382.53
Thanks: 497
Thanked 369 Times in 293 Posts
Rep Power: 19
Coil_Smoke is just really niceCoil_Smoke is just really niceCoil_Smoke is just really niceCoil_Smoke is just really nice
Default

Games act up in various ways when back-up batteries fail. Does connecting the battery have any effect?
__________________

When Lit
Reply With Quote
  #12  
Old 04-27-2017, 06:22 PM
Johanedre Johanedre is offline
Inserted Coin
 

Join Date: Apr 2017
Posts: 1
Credits: 205.16
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
Johanedre is on a distinguished road
Default

I have an issue that is very similar to yours. Did you managed to fix that?
Reply With Quote
  #13  
Old 05-14-2017, 09:06 PM
ganastas ganastas is offline
Inserted Coin
 

Join Date: Sep 2014
Posts: 7
Credits: 4,321.09
Thanks: 0
Thanked 1 Time in 1 Post
Rep Power: 0
ganastas is on a distinguished road
Default

Update. Ya, I know it's been long long time. Tried new battery's no fix.
Fault code still one on boot? We have to get this bro's could be a great fix post.
From bad deign..
Reply With Quote
Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Black knight 1980 only one flipper working tyoho Maintenance & Repair 5 01-08-2014 04:27 PM
Black Knight 1980 Hoppel Maintenance & Repair 35 05-29-2012 09:46 PM
Black Knight (1980) vs. Black Knight LE steersken General Pinball 3 04-27-2012 07:40 PM
Imported Messages (826 entries 7/2001 to 1/2012) JonPurpleHaze IRPinball's Guestbook 1 01-31-2012 12:09 AM
Black Knight 1.3 (Williams 1980) released kristian Visual PinMAME New Releases 5 10-18-2004 10:17 AM


All times are GMT -4. The time now is 07:54 PM.


Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Template-Modifications by TMS
Credits System provided by vBCredits II Deluxe (Lite) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Shoutbox provided by vBShout v6.2.15 (Lite) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.