Kurzweil PC88 - Page 92

Chapter 4 Troubleshooting
Battery
A low-voltage battery alert will appear in the LCD on
power up.
The battery should be changed if it reads below 2.4
Volts. It is located on the I/O Board. The battery is a 3
Volt Lithium flat disc, CR2032.
If you encounter other problems, refer to the
Schematic Diagrams and check circuit.
Removing/Replacing the Battery
To remove/replace the battery, ease the battery out
away the holder and pull upwards.
When replacing the new battery, ensure the positive
terminal is facing the rear panel edge. Simply insert
battery into the holder and push down until it clicks into
place.
Trimmers
There are three trimpots located on the Wheels
Assembly. The first trimpot, R3, is for the wheels
"Center" and is set. The other two, R13 and R15, are for
"Range" and "Offset". You can access the trimpots
through holes located below the Wheels Assembly
underneath the bottom chassis.
The trimmers should be adjusted using the Scanner
Tests. Please refer to Chapter 2, Diagnostics, Mod Wheels,
Page 2 - 17.
PC88 Service Manual
4-12