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Korg Volca Bass Service Manual page 21

Analogue bass machine
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05
67
40
06
68
41
07
69
43
10
54
44
12
60
45
13
29
46
Please check the CPU pins in question is not a short and adjacent Pin or Open,.
Error Display List of LED / button test(inspection number [1.3])
Error Display List of Touch pad check(inspection number [1.4])
※ message content is exactly the same inspection of the above two.
Please refer to the error display the following table also inspection of both.
When it detects the pressing of the button that is different from the assumption, it is an error.
"10**": "**" is expected button number.
"20**": "**" is detected button number.
The following is a table of correspondence inspection button and display value.
Display
Type
00
touch
01
touch
02
touch
03
touch
04
touch
05
touch
06
touch
07
touch
08
touch
09
touch
0A
touch
0b
touch
Error Display List of A/D (knob) inspection(inspection number [3.#])
(A) If "108*" is displayed on the seven-segment
It is error value (jump value of unexpected) to be tested A / D.
The following is a table of correspondence inspection A / D and display value.
Display(A)
1087
1086
1085
1084
1089
1088
1083
1082
1081
1080
(A)-1 If "2001" is displayed on the seven-segment, Increase or decrease of the A / D is reversed.
(A)-2 If "2002" is displayed on the seven-segment, A/D value is jumpy.
(B) If "100*" is displayed on the seven-segment
Value change except target A/D has been detected.
20
55
21
56
89
60
23
61
24
63
25
64
Name
M1
M2
M3
M4
M5
M6
M7
M8
9
10
11
12
Display(B)
knob name
1007
TEMPO
1006
ATTACK
1005
DECAY/RELEASE
1004
CUTOFF EG INT
1009
OCRAVE
1008
LFO RATE
1003
LFO INT
1002
PITCH 1
1001
PITCH 2
1000
PITCH 3
45
72
32
46
73
36
26
74
9
27
75
10
6
76
84
15
77
85
Display
Type
Name
0C
touch
13
0d
touch
14
0E
touch
15
0F
touch
16
10
MEMORY
rubber
11
rubber
STEP
12
PLAY
rubber
13
rubber
REC
14
VCO1
rubber
15
rubber
VCO2
16
VCO3
rubber
17
rubber
FUNC
CPU pin No.
98
97
96
95
100
99
94
93
92
91
86
79
A2
87
83
90
70
91
49
92
86
93
87
7

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