SOUND BOARD DIAGNOSTICS
Depress DIAGNOSTIC pushbutton on the bottom of the Sound Board. A check is made of the Sound ROM and sounds are produced if the check is good. If sounds are produced but not produced in Audio Test 5 check for ROM board PIA outputs on Sound Board inputs that is stuck low. If no sound is produced either the Sound ROM, input power, or other Sound Board circuitry is faulty.
"Warning: This equipment generates, uses, and can radiate radio frequency energy and if not installed and used in accordance with the instructions manual, may cause interference to radio communications. As temporarily permitted by regulation it has not been tested for compliance pursuant to Subpart J of Part 15 of FCC Rules, which are designed to provide reasonable protection against such interference. Operation of this equipment in a residential area is likely to cause interference in which case the user at his own expense will be required to take whatever measures may be required to correct the interference."