Kurzweil HUB7, Manual, Page: 51 / 56

RSP8 Diagnostics and Troubleshooting
Appendix A-9
In Case of Problems
RSP8 does not power-up (LEDs do not flash, display
remains dark)
1. Defective cable.
2. Incorrect cable (not one-to-one wired).
3. Other cable end not plugged into KSP8 or RSP8 port of HUB7.
4. If plugged into a KSP8, the KSP8 is not on.
5. If plugged into a HUB7, no input port is connected to a
powered KSP8.
6. If plugged into a HUB7, its adapter is not plugged in or not
powered.
7. Cable too long or wire gauge too small between power source
and RSP8.
Power-up sequence repeats indefinitely
1. Cable too long or wire gauge too small between power source
and RSP8.
2. Defective cable.
Display brightness unstable at high settings
1. Cable too long or wire gauge too small between power source
and RSP8.
2. Run the Controls Diagnostic and verify that voltage reading
remains above 4.0 volts with a backlight setting of 160.