What the Black Knight sound test should do

Pressing the sound board test switch on Black Knight should loop through its single speech words (knight, black, challenge and so on) until switched off. In attract mode the game also speaks a taunt with a laugh now and then. If the test fails, unplug 10J3 and try again.

Systems

• Williams System 7

Games

• Black Knight

Related tips

• Setting up a sound board for speech
• Sound board jumpers for sound-and-speech games (2K ROM)
• Damage after the black and white plugs were swapped
• Sound effects work but speech is missing or very quiet: replace the speech board op amps
• No sound effects in play though speech works: check the sound board PIA
• Which sound board each game uses
• Sound board jumpers for 2K sound-only games
• Using the sound board test switch

Source: Repairing Williams System 3 to System 7 Pinball 1977 to 1984, Part Three, Clay Harrell (pinrepair.com)