All lamps, or a whole group, are dark.
Group of lamps out
Cause: The lamp fuse, its fuse holder, or a break in the bare common wire that links the sockets.
Checks
- Test the lamp fuse and check its clips.
- Follow the bare common bus wire stapled along the backboard or playfield underside from socket to socket and look for a break.
Fix
- Replace the fuse or repair the holder.
- Resolder the broken bus wire.
Systems
- Williams System 3
- Williams System 4
- Williams System 6 / 6A
- Williams System 7
- Williams System 9
- Williams System 11
- Williams System 11A
- Williams System 11B
- Williams System 11C
- WPC Alpha-Numeric
- WPC Dot Matrix
- WPC Fliptronics
- WPC DCS
- WPC-Security (WPC-S)
- WPC-95
- Bally MPU AS-2518-17
- Bally MPU AS-2518-35
- Stern MPU-100
- Stern MPU-200
- Bally 6803
- Gottlieb System 1
- Gottlieb System 80
- Gottlieb System 80A
- Gottlieb System 80B
- Gottlieb System 3
- Data East CPU Version 1/2
- Data East CPU Version 3
- Data East/Sega CPU Version 3b
- Capcom
- Electro-mechanical
Related tips
- A group of lamps is out
- A group of general illumination lamps is out
- Driver board A3-J3 lamp groups and relays
- LED replacement lamps
- Use #47 instead of #44 lamps to save artwork
- Fewer and cleaner backglass lamps
- #555 and #259 wedge lamps
- Lamp flickers or is out with a good bulb
Source: Pinball Machine Care & Maintenance, Bernard B. Kamoroff (Bell Springs Pinball Alley)