The Squawk and Talk test button can lock the board up

The board's test button has no debounce, so a press can register several times and freeze or stutter the board; if so, power the game off and on. A good test plays several phrases and a long tone, then the board reboots.

Systems

• Bally MPU AS-2518-35

Related tips

• Bench-test a Squawk and Talk board
• Squawk and Talk supply needs
• Squawk and Talk LED flash codes
• Squawk and Talk: distorted sound or hum
• Squawk and Talk stops at four flashes
• Speech quieter than sound effects until the game warms up
• Squawk & Talk -61 and Say It Again -81 test points
• Which -51/-56 sound ROMs respond to the board test button

Source: Repairing Bally Electronic Pinball Games from 1977 to 1985, Part Three, Clay Harrell (pinrepair.com)