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Pinball Doctor Coin-Op Amusement Repair and Maintenance (406) 545-4824 (Let it Ring!)

Pinball and Video Arcade Service and Sales - Billings, Montana USA

Pinball Doctor Coin-Op Amusement Repair and Maintenance  (406) 545-4824 (Let it Ring!)
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Allied Leisure Cocktail Pinball Circa 1933 needs MPU

Pinball Doctor Coin-Op Amusement Repair and Maintenance (406) 545-4824 (Let it Ring!) Posted on April 24, 2016 by pindocMay 3, 2016

2016-04-24 17.37.25

I just got this in. It needs an MPU PCB50210125H and the apron plexi is broken. The MPU board is missing but otherwise it seems complete.

This is the best web page I have found on it:

http://www.flippers.com/ALI-Pinball_service.html

Any tips?

Posted in General Info, Repairs

TrifurcoN Connector Pins and Molex Connector Housings.

Pinball Doctor Coin-Op Amusement Repair and Maintenance (406) 545-4824 (Let it Ring!) Posted on April 4, 2016 by pindocApril 4, 2016

This is just a little reminder so I can find the part numbers easily when I need them thanks to:

http://techniek.flipperwinkel.nl/wms11/index1.html

1756640-40

Trifurcon Connector Pins.
Molex makes a crimp-on .156″ size female terminal pin called a “trifurcon” pin (not available in the .100″ pin size). This style .156″ pin differs than the “normal” pin; the metal material is more heat resistant, and it has three wiper contacts instead of just one. The more contact points means the female pin “hugs” the male header pin with greater surface area. I highly recommend these. They are available from Digikey (800-344-4539 or http://www.digikey.com). You can also view the specs for these pins at http://www.molex.com/product/pcb/6838.html. Compares these to the “normal” connector pin specs at http://www.molex.com/product/pcb/2478.html.
Note Molex sells these pins in “strips” or on a “reel”. Do NOT buy connector pins this way! Always buy them in “bags” (separated). It’s just too difficult to cut them when they are in strips. If you don’t do a good job cutting them, they won’t insert into their plastic housing correctly. Also always get the tin plated version, NOT the gold plated pins.

.156″ Trifurcon pins (three wipers): Digikey part# WM2313-ND (Molex part# 08-52-0113, for 18 to 24 gauge wire). Price is $1.02 for 10, $8.50 for 100.
.156″ tin pins (one wiper): Hosfelt (800-524-6464) part# 08-50-0106, for 18 to 24 gauge wire). Price is $0.06 each.
Board Mounted Header Pins.
These are available in several styles. Get the most number of pins available, and cut the header to the size you need. They also come with a “lock” and without a lock. The lock variety is what you’ll use the most.
.156″ header pins with lock (12 pins): Hosfelt (800-524-6464) part# 26-48-1125, $0.94 each.
.156″ header pins with no lock (12 pins): Hosfelt (800-524-6464) part# 26-48-1121, $0.70 each.
Connector Housings.
Sometimes you’ll have to replace the plastic connector housing too if it is burnt, in addition to the pins within the housing. Get the most number of pins available, and cut the connector to the size you need.
.156″ white housings (12 pins): Hosfelt (800-524-6464) part# 09-50-3121, $0.79 each.
.156″ black hi-temp housing: Williams part #5792-13384-xx. The “xx” is the number of pins for the housing from “02” to “18”.
Polarized Pegs.
A polarized peg is a small nylon plug that go into the connector housing so the housing is “keyed” (you can’t plug it into the wrong board header pin connector). I highly recommend using these if you replace a connector housing.
.156″ polarized peg: Hosfelt (800-524-6464) part# 15-04-0220, $0.13 each.

Posted in General Info, Repairs

Gottlieb “The Games” pinball machine repaired and ready for pickup.

Pinball Doctor Coin-Op Amusement Repair and Maintenance (406) 545-4824 (Let it Ring!) Posted on March 31, 2016 by pindocMarch 31, 2016

2016-03-30 14.48.36

2016-03-30 14.48.23

2016-03-30 14.49.12

This is a system 80A from 1984. It has no backglass because I often tell service customers to leave that fragile place safely stored at home.

This one had sound problems, broken flipper and a failed diode. I also performed the ground mods that should be done on all gottlieb from System 1 until system 3. Notice the Green/Yellow wires added:

2016-03-31 10.52.16

Posted in General Info, Repairs

Stern Simpsons Pinball Party Machine Back to Work

Pinball Doctor Coin-Op Amusement Repair and Maintenance (406) 545-4824 (Let it Ring!) Posted on March 30, 2016 by pindocMarch 30, 2016

2016-03-29 14.01.22

2016-03-29 14.01.35

Here is one more going out to earn its keep:

bad trough switches, broken back box, no general illumination on playfield, jury-rigged plunger, bad coin switch, no tilt bob.

Fully LED’ed

Posted in General Info, Repairs

Space Invaders ready for pickup

Pinball Doctor Coin-Op Amusement Repair and Maintenance (406) 545-4824 (Let it Ring!) Posted on March 2, 2016 by pindocMarch 4, 2016

image

I had to send out the deflection board to someone with more skills than me. He ended up giving me a different board so I don’t feel so bad that I couldn’t fix it.

Previous Post: http://pinballmd.com/space-invaders-deluxe-motorola-monitor-failure/

Posted in Repairs

Bally KISS complete

Pinball Doctor Coin-Op Amusement Repair and Maintenance (406) 545-4824 (Let it Ring!) Posted on March 2, 2016 by pindocMarch 2, 2016

wp-1456978963154.jpeg

This one has been down for 14 years. It will be back home and playing well tomorrow.

Posted in Repairs

Rush the Rock ready for pickup

Pinball Doctor Coin-Op Amusement Repair and Maintenance (406) 545-4824 (Let it Ring!) Posted on February 27, 2016 by pindocFebruary 27, 2016

wp-1456599480650.jpeg

This machine came in with plenty of problems:

Wells Gardner LCD Blown (Replaced with Weiya M3129D)

Force Feedback Controller Blown (OPA541AP chips)

FF Motor wired backwards

Bad Steering Pot

Melted Coin Reject Button

No Keys and a Locked Coin Door Lockbar

Dead PCB Battery

I also upgraded the Hard Disk to a CF Adapter

 

Posted in Repairs

This is what a burned trace looks like on a Bally solenoid driver board.

image

This was the trace for the outhole kicker on a Bally .
image

And this is the repair.

image

It must have been a smelly fire.

February 24, 2016 by pindoc Posted in Repairs

Bally Kiss and Elvira Pinball Machines in da House.

Pinball Doctor Coin-Op Amusement Repair and Maintenance (406) 545-4824 (Let it Ring!) Posted on February 23, 2016 by pindocFebruary 23, 2016

2016-02-23 11.58.21

2016-02-23 13.46.48

Two nice machines came in for shops and repairs. Between the two of them, they have lain idle for over 20 years. Their rest is almost over!

Posted in Repairs

Pinball games in the shop.

Pinball Doctor Coin-Op Amusement Repair and Maintenance (406) 545-4824 (Let it Ring!) Posted on February 5, 2016 by pindocFebruary 5, 2016

image

A couple of new machines came into the shop today. They will require minor repairs & Shop jobs.

Posted in Repairs

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