Matsushita Electric SX-KC211, Руководство по обслуживанию

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2. Use the numeric button in the Number buttons to select an item
from 0 to 5. Press a keyboard key.
0: FULL w/o
Generate a full amplitude sine wave in the pitch of each key.
(Without touch, fixed stereo center).
If no sound is generated or if the sound is distorted, the sound
generator ROM corresponding to the key position is defective.
1: OUTSEL
For confirming the output pathway from the sound generator.
(Fixed scale, no touch)
The L ch (C key) and R ch (C#-B keys) sound outputs are
confirmed separately.
2: +2 OCT
Generate a full amplitude sine wave in the pitch of each key +2
octaves. (Without touch, fixed stereo center)
By generating a sound frequency outside the normal keyboard
zone, you can confirm whether or not there is an abnormality in
the sound output frequency zone.
3: -2 OCT
Generates a full amplitude sine wave in the pitch of each key -2
octaves. (Without touch, fixed stereo center)
By generating a sound frequency outside the normal keyboard
zone, you can confirm whether or not there is an abnormality in
the sound output frequency zone.
4: NORMAL w
Generate a sine wave in the pitch of each key with touch.
You can confirm if the volume changes depending on the touch.
5: -16dB
Generate a full amplitude sine wave in the pitch of each key at a -
16 dB volume. (Without touch, fixed stereo center)
You can confirm the same sound output as in 0:FULL w/o, at a
lower volume.
7.2. Panel SW & LED test
1. Press and hold the two F keys shown below, and then turn on the
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