Casio LK-125, Service Manual & Parts Manual

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LK-125
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BUTTON CHECK B.
Press the “0” button to select the “Button Check”. B-1.
Press the keys in the order of the numbers indicated in the illustration below. B-2.
If the button function is OK:
The confirmation chord sounds, and the button number and “OK” appear on the LCD.
If a button function is not operating properly or a button is pressed in a wrong order:
The error tone sounds, and the button number and “NG” appear on the LCD.
You cannot cancel this check procedure mid-way. NOTE:
01 02 05 06 10 11 12 13 24 25 26
03 04 07
23
22
21
20
19
14
15
16
17
18
08 09
When the “SPEAK” button is pressed at the end, the confirmation chord sounds and “SWITCHOK” B-3.
appears on the LCD.
ROM VERSION CHECK C.
Press the “1” button to perform the “ROM Version Check”. C-1.
The ROM version appears on the LCD.
Check that the ROM version is “821VR100”.
C-2.