Kurzweil PC88 - Page 88

Chapter 4 Troubleshooting
Sliders, Groups of Switches, Wheels or Controllers not
functioning.
1. Refer to the Interconnect Diagram.
2. Check all cable and solder connections.
3. Run the Scanner Tests. With the power on,
simultaneously hold down 4,5 and 6 buttons to
enter the tests.
4. Refer to Schematic Diagrams. Check signal path
for section not functioning.
5. Find and replace bad component(s).
6. If necessary, order circuit board replacement.
PC88 Service Manual
4-8