Kurzweil PC88 - Page 31

Chapter 2 Diagnostics
Sound Test
This test produces 5 sine waves. After each sine wave,
press any button (or keyboard key) to advance to the next
one. This allows the operator to take measurements
before continuing with the next step.
However, in the Burn-In Mode, a 5 second delay is
inserted between each tone. The operator does not have
to press a button or key to advance to the next test.
The expected amplitude and frequencies are as follows:
3V P-P at 100Hz.
SV P-P at 610Hz. |
.7V P-P at 1.173Hz.
1.65V P-P at 2.354KHz.
OV P-P at 5.917KHz.
Se ah
This test cannot fail. All failures must be detected by
the user.
PC88 Service Manual
2-13