Testing fuses with a meter

Steps

• Remove the fuse, or at least one end of it, from its holder; testing in place can read through the circuit.
• Set the meter to continuity (or lowest ohms) and touch the probes to both end caps.
• A good fuse beeps and reads zero ohms; no beep means the fuse is blown.
• Watch for a tired fuse that breaks as you pull it, or one whose wire lifts off an end cap as it warms; these can test good in the holder.

Systems

• Williams System 11
• Williams System 11A
• Williams System 11B
• Williams System 11C

Related tips

• Testing a fuse
• Common fuse ratings to stock
• Fuse ratings to stock for System 11
• Power supply board fuses (typical game)
• Auxiliary power driver board fuses
• Interconnect board and flipper power board fuses
• Checking a fuse properly
• Where the fuses are

Source: Repairing Williams System 11 Pinball 1986 to 1990, Deel 1, Clay Harrell (pinrepair.com)