No. PCB TEST MODE Procedure
4 CPL /
CPR
Control Panel buttons
LED ligting check
Press and hold the two F keys shown below, and then
power switch.
Press the buttons on the control panel and confirm that the corresponding LEDs
5 Control Panel LED
display check
Press and hold the two G keys shown below, and then
power switch.
The numbers are displayed automatically and repieatedly on the display.
Connection between serving CHECKING DEVICE and MAIN P.C.B.
12. MIDI Implementation Chart
13. Precautions before Servicing
13.1. Precautions for measuring of the output waveforms
1. The waveform was measured with a “National Digital Storage
Oscilloscope VP-5730A”. Therefore the waveforms of musical tone
signals shown may differ somewhat due to the difference in the
timing of triggering.
2. Since the 1/10 test probe is used, the indicated voltage value on
the bottom part of each waveform illustration is 1/10 of the actual
value (e.g. 0.2 V/cm should be 2.0 V/cm).
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