Technics SX-KN901

TEST MODE
Wave ROM check
MAIN: IC11, 12
Procedure
Press and hold the two E keys shown below, and then turn on the power
ATI
if
E keys
When set to the self-diagnostic mode, the Wave _* The key number indicates the Wave ROM number.
ROM outputs a sine wave. The Wave ROMs (1:1011, 2:1012)
correspond to the keyboard keys as shown in the
diagram to the right. When a key is pressed, the
corresponding sine wave sound is produced. If no
sound is produced, or if the sound is distorted, the 422292990299 90092
Wave ROM corresponding to that key is defective.
KEY |C C# D D#E F F#G A A#B
LED & SW check
Press and hold the two F keys shown below, and then turn on the power
| WITT An
a
a an @
<
no
All the LEDs turn off after lighting once. Confirm that all the LEDs light.
LCD Display check Press and hold the two G keys shown below, and then turn on the
power switch.