Diagnostic Program - Casio LK-120 Service Manual & Parts Manual

INITIAL SETTING
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(1( Connect the AC adaptor.
((( Turn the volume to the maximum.
HOW TO START THE DIAGNOSTIC PROGRAM
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(1( Hold down the "0" and "START/STOP" buttons at the same time, to turn the power ON.
NOTEN Set the mode switch to the "NORMAL".
NOTEN Be sure to turn off the power when the test is finished.
((( Release the "0" and "START/STOP"
((( After the diagnostic program is launched, the test menu appears.
TEST ITEMS
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Pushing a test button enables the corresponding test item to be tested.
Test Items
Mode Switch Check
Button Check
ROM Version Check
Keyboard LED Check
LCD Check
Auto Power Off Check
This diagnostic program does not test the following items.
Check the functions with regular power-on state.
Test Items
Keyboard Check
Headphones Check

DIAGNOSTIC PROGRAM

buttons.
Buttons
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0
1
TONE
STEP 1
PART SELECT
Buttons
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Note
Note
Headphones
LK-120