Big Bear's Bulletin Board

These are the "Ramblings" of Bob Roberts and may not necessarily be the popular consensus, but rather things that have always worked for me, along with some "How to's" and ideas I have picked up on over my 40 years of fixin' coin-op stuff. My intentions are to make this as basic as possible, so that newbies can grasp the concepts readily.

I know there is a ton of info lurking up here already, and hopefully this will not be a duplication, but rather a further help to the newbie or the full fledged collector/tech. No techie stuff! Use info at your own risk, although I am still kicking...I might just be lucky :)

This page made possible by:Tony D. BerryThanks

Just Stopped By To Pickup A Few Game Parts?

A Chicken Little Story Problems With A/R Bds In Atari Games	Acronyms & Abbreviations Commonly used acronyms & abreviations
Atari's Big Blue Symptoms Of A Bad Filter In Atari Games	BloodStorm JAMMA Pinout For BloodStorm By Strata
Bridge Rectifiers Identifying Types Of Bridges & Polarities	Cam Locks Which Locks Are Needed & Installation
Cheap Audio Amplifier How to make a cheap audio amp for adaptors	Coin Mechs Help With Replacing Coin Mechs
Crimp Mystery Proper Crimpers & How To Use Them	DC Pac Harness To Jamma Using an adaptor to test Jamma bds in Pac cab
Defender Rom Board Help With The Williams Defender Rom Board	Diodes Which Way To Install Diodes
Donkey Kong One Way To Use A Newer Switching Power Supply	Eprom Programming Using A Programmer & Programming Voltages
Fluorescent Lighting Testing Marquee Fluorescent Fixtures	Free Play Rigging Your Game For Free Play
G07 Chassis Repair Guide To Repairing An Electrohome G07 Chassis	G07 Filter Capacitor Replacing the G07 B+ Filter With A Modern Type Filter
G07 Model CAO What Cap Kit To Use On The Older G07-CAO	G07 Shrunken Picture What To Do After The Cap Kit Is Installed
G07 Sync Upgrade Upgrade To Accept Newer Type Sync Input	G07 Vertically Challenged Causes For Vertical Collapse
G07 Last Resort You've done everything & still the chassis is dead	Get The Yoke How To Fix Pic Mirror Image Or Upside Down
Good Cap - Bad Cap Quick Testing Large Filter Capacitors	Ground Via Earth What Is Earth Ground & How Is It Hooked Up
Great 1000Mile Rally Hooking Up The Steering Wheel & Other Notes	Greyhound Poker Board Pinout for Greyhound poker & trivia boards
Grounding Your Game Cab Wire Size & How To Run Ground Loop	Gun Troubleshooting Solutions For Lethal Enforcers Gun Problems
I Want To Build A Game Guide To Assembling A Game's Components	Ice Cold Beer Fix Replacing The Belts On Taito's Ice Cold Beer
Illuminating Pac Buttons Installing & Lighting Translucent Start Buttons	Isolation Transformer Stopping The Buzzing In An Isolation Transformer
JAMMA Harness How To Install A JAMMA Harness	JAMMA Plus Solution For Adding Kick & Punch Extra Buttons
Joystick Notes Solutions For Possible Joystick Malfunctioning	K7000 C36 Retrace Cap How To Replace Older 4-Legged Critical Safety Caps
Konami 3 & 4 Players Pinouts for Konami 3 & 4 player sub-harness	Lamp Sockets Tips On Coin Door Lighting
Leaf Switch & Button Solutions For Using Leaf Switch Buttons	Monitor ID Page Pics Of Chassis' To Help Identify Your Monitor
Monitor Extension Cable How To Troubleshoot Using Another Game Or Monitor	Monitor Orientation How to distinguish between vertical & horizontal monitor problems
Ms Pac Speed Up Installation Of Speed Up Or Slow Eprom	Ms Pac-Man Wiring AC & DC wiring of a Ms Pac cabinet
Mud Red Jukebox Quick link to the often asked about jukebox story	My Pac Is Drunk Solutions For Weaving, Humming & Black Bars
My Notes What's left of my old notes page	Pac Adaptors How To Build A Pac Adaptor To JAMMA Adaptor to use a switcher with OEM Pac wiring harness
Pac-Man Sockets Brown Intermediate Sockets For 5S & 6D	Pac-Man Switcher Making An Adaptor To Power Pac With A Switcher
PCB Edge Repair One Way To Cope With Bad Edge Pads/Fingers	Power Supply Tester Using another game to test your power supply
Quick & Easy Video T-Shooter An aid to help track down video problems.	Resistor Reader Enter Color Bands For Resistor Value
SafeBack Discharger Building A Pic Tube Discharger	Singing Monitor Trouble Solution For A Whiny Monitor Flyback Transformer
Slanted Monitor Picture K4600 Monitor Problems & Solutions	SPM To JAMMA Adaptor Building A Super Pac-Man To JAMMA Adaptor
Sync Troubles Various Ways Of Connecting The Monitor Sync	TB Test Fixture How I test trackball units before shipping. Monitor collapse tips.
Test Fixtures Building A Test Fixture or Test Jig	Trackball Units A Look At TB Unit Changes Over The Years
Trackball Bearings Trackball Bearing Maintenance	Trackball Illumination Illuminating A Translucent Ball In A TB Unit
Trackball Troubles Using The Trackball To Test Itself	Transformers Q & A's On Power Transformers
Tron Power Supply Repairing The Midway 90412 Linear Power Supply	Using Radial Cap Replacements Replacing axial lead caps with radial lead caps.
Using An Ohmmeter Using An Analog Meter For Quick Test Results	Video T-Shooter Building A Quick & Easy Video T-Shooter
What Wire Gauges Wire Size Needed For Cab Wiring	Wico Command Control Trackball Trackball Used With Home Games
Wico Trackball Revival Bringing An Old Wico Trackball Back To Life	Width Coil Adjusting Adjusting A Width Coil - What Not To Use
Williams Battery Conversion Getting Rid Of The 3 AA Batteries	Williams Coin Door Lamps Addresses Other Issues When Using A Switching Power Supply
Williams Decoder Help Covers some decoder problems. Adding PS 5 volt adjust & changing sockets.	Williams Service Switch Simplified wiring for bench jig service switch.

Bob's Map Aids

Amplifone Cap Map Basic AC Wiring Map

G05-801 Cap Map G07 Cap Map

WG K4600 Cap Map WG K4900 Cap Map

WG K6100 Cap Map WG K7000 Cap Map

MC-2000-S Cap Map MTC-9000 Cap Map

Nintendo Audio Bd Cap Map Pac-Man Bd Cap Map

Atari Trak Ball™ Maps Cherry Switch Map

Control Panel Wiring Map Defender PS Board Map

K7000 Flyback Footprint Midway 90411 PS Board Map

Midway 90412 PS Board Map Midway 90421 PS Board Map

MK Plus Map Super Pac-Man>JAMMA PO Map

Stargate & Up PS Bd Map SF 2 Plus Map

Street Fighter Plus Map Williams Decoder Map

Williams Ram Layout Map Wms Defender Rom Bd Layout Map

Wms Stargate Rom Bd Layout Map Williams Sound Board Map

Helping Hobbyist Since 1996 - Happy Gaming...

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Amplifone Cap Map	Basic AC Wiring Map
G05-801 Cap Map	G07 Cap Map
WG K4600 Cap Map	WG K4900 Cap Map
WG K6100 Cap Map	WG K7000 Cap Map
MC-2000-S Cap Map	MTC-9000 Cap Map
Nintendo Audio Bd Cap Map	Pac-Man Bd Cap Map

Atari Trak Ball™ Maps	Cherry Switch Map
Control Panel Wiring Map	Defender PS Board Map
K7000 Flyback Footprint	Midway 90411 PS Board Map
Midway 90412 PS Board Map	Midway 90421 PS Board Map
MK Plus Map	Super Pac-Man>JAMMA PO Map
Stargate & Up PS Bd Map	SF 2 Plus Map
Street Fighter Plus Map	Williams Decoder Map
Williams Ram Layout Map	Wms Defender Rom Bd Layout Map
Wms Stargate Rom Bd Layout Map	Williams Sound Board Map