Kurzweil PC88 - Page 32

Chapter 2 Diagnostics
Scanner Tests
The Scanner Tests allow you to individually check the
Keyboard keys and pressure, Front Panel buttons, LEDs,
sliders, and Data Wheel, Mod Wheels and Rear Panel
jacks. The result of each test is noted in the LCD.
To enter the Scanner Tests, power up the PC88. Once
power has been applied and the unit is in normal play
mode, simultaneously hold down 4,5, 6 buttons to enter
the tests.
Upon entering the Scanner Tests, you will see the
bottom row of LEDs Internal Voices, 9 through 16,
initially come on and off individually; then all
simultaneously.
You should see the following in the LCD:
SCAN 2.7 We=128 B=2.9
Data Wheel
Slowly moving the Data Wheel, you should see the
following in the LCD:
SCAN 2.7 W=128 B=2.9
SPINKNOB = 0
Expected results: Turning the wheel clockwise, you
should expect to see the the wheel increment from
0, 1, 2, 3; and from 3, 2, 1, 0 turning the wheel
counterclockwise.
PC88 Service Manual
2-14