Casio LK-300TV Service Manual page 9

6. ROM Ver. check
1 Press "3" button. (internal ROM)
2 Press "3" button. (extenal ROM)
7. RAM check
1 Press "+" button.
* Confirmation sound sounds.
8. D/A check
1 Press the "4" button.
* When standing in the center, the tester hears the minimum test sound in an
equal volume from both right and left speakers.
2 Press the "5" button.
* When standing in the center, the tester hears the medium test sound in an
equal volume from both right and left speakers.
3 Press the "6" button.
* When standing in the center, the tester hears the maximum test sound in an
equal volume from both right and left speakers.
4 Press the "7" button.
* When standing in the center, the tester hears the maximum test sound from
the left speaker.
5 Press the "8" button.
* When standing in the center, the tester hears the maximum test sound from
the right speaker.
9. SD check
1 Press the "CARD" button.
* Confirmation sound sounds.
NOTE: If "CARD" button at lock mode, "PT UER" is appears on LCD.
10. LCD check
1 Press the "STEP1" button.
* All dots and characters of LCD turn on.
* There is no lack of the dot and the charater.
11. KEY LED check
1 Press "SCORING1" button.
* The key lights with confirmation sound in the following order.
* There must not be remarkable difference in the LED brightness of the
adjacent key.
1) C1, D1, E1, F1, G1, A1, B1
2) C2, D2, E2, F2, G2, A2, B2
3) C3, D3, E3, F3, G3, A3, B3
4) C4, D4, E4, F4, G4, A4, B4
5) C5, D5, E5, F5, G5, A5, B5, C6
11. Console LED check
1 Press the "SPEAK" button.
* Keyboard LED must light in the undermentioned order.
1) DATA ACCESS
2) SONG CONTROLLER
3) RHYTHM CONTROLLER
6) C1#, D1#, E1#, F1#, G1#, A1#
7) C2#, D2#, E2#, F2#, G2#, A2#
8) C3#, D3#, E3#, F3#, G3#, A3#
9) C4#, D4#, E4#, F4#, G4#, A4#
10) C5#, D5#, E5#, F5#, G5#, A5#
— 7 —
Message on LCD
200
200
AOK
MIN
MID
MAX
L
R
UOK