LK-127
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D. Keyboard LED Check
D-1. Press the “TONE” button to perform the “LED Check”.
Automatically the keyboard LEDs are lit.
D-2. Check the following points.
• The confirmation tone sounds and the LEDs are lit in the order of numbers shown in the figure
below.
•
There should be no key of which LED brightness is too bright or too faint.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
E. LCD Check
E-1.
Press the “STEP 1” button to perform the “LCD Check” and then check that the confirmation tone
sounds and also that all segments are lit.
E-2.
Press the “STEP 2” button and then check that the confirmation tone sounds and also that all
segments are turned OFF.
Summary of Contents for LK-127
Page 1: ...LK 127 MAR 2013...
Page 7: ...LK 127 5 PRINTED CIRCUIT BOARDS MAIN PCB M821 MDA1 POWER AMP PCB M820 PSA1...
Page 32: ...LK 127 30 KEYBOARD LED PCB M821 LDA1 to LDA2 CN503 to LD3M JG...
Page 33: ...LK 127 31 KEYBOARD LED PCB M821 LDA2 to MDA1 CN2 to LD5M JE to LD4M JF to LDA1 CN501...
Page 34: ...LK 127 32 KEYBOARD LED PCB CSM446 LD3M LD4M LD5M to LDA1 CN502 to LDA2 CN504 to LDA2 CN505...
Page 35: ...CASIO COMPUTER CO LTD CS Technical Department TOKYO JAPAN...
