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18.4. (D) Tact Switch Circuit, (E) Mic Circuit & (G) Deck Mechanism Circuit
1
2
3
SCHEMATIC DIAGRAM - 11
A
D
TACT SWITCH CIRCUIT
R6211
R6210
R6209
R6208
R6207
R6206
R6205
22K
10K
6.8K
4.7K
2.7K
2.2K
1.8K
B
R6492
47K
R6493
10K
3
2
1
R6491
47K
VR6491
EVEKE2F2524B
C
VOLUME JOG
1
NC
2
KEY2
3
VREF+
4
VJOG_A
5
VJOG_B
6
GND
D
7
MPORT_SW|
E
G
DECK MECHANISM CIRCUIT
PL970
IC971
CNB13030R2AU
PHOTO INTERRUPTOR
D971
R972
D1_CRO2
MA2C16500E
820
R973
39K
PHOTO_T
F
STBY_5V
VREF_GND
PHOTO_S
7
6
5
4
3
2
1
Z971
RGSD12A1445T
G
IC951
PL971
CNB13030R2AU
MODE
PHOTO INTERRUPTOR
D951
D1_CRO2
MA2C16500E
R952
820
PHOTO_T
R953
S952
HALF
39K
STBY_5V
VREF_GND
H
PHOTO_S
1
2
3
4
5
6
E
: +B SIGNAL LINE
R6204
R6203
R6202
1.2K
1K
1K
MIC 1
H6557
C
TO
PANEL CIRCUIT
(H6901)
IN SCHEMATIC
DIAGRAM - 9
MIC 2
: +B SIGNAL LINE
MODE
PL
GND
HALF
CN971
10
PL2
1
PL1
2
STBY_5V
3
PL_GND
C
4
TO
AD_OUT
5
PANEL CIRCUIT
PHOTO_PB
(CN6401)
6
IN SCHEMATIC
PHOTO_RP
7
DIAGRAM - 9
HALF_PB
8
PL
VREF_GND
9
GND
MODE_PB
10
1
HALF
4
5
6
7
8
9
MIC CIRCUIT
: +B SIGNAL LINE
: MIC SIGNAL LINE
JK6902
5
4
2
3
6
R6901
W6885
C6905
7
0
680
50V3.3
R6903
560
1
C6901
0.022
5
4
R6902
680
2
3
6
R6962
4.7K
7
1
JK6901
7
8
9
91
10
11
12
W8881
0
W6887
L6902
G0C100JA0052
Q6901
B1ABCF000176
C6912
MIC AMP
50V1
C6907
C6910
470P
50V0.1
C6914
Q6902
100P
W6884
0
B1ABCF000176
MIC AMP
C6911
0.056
SA-VK660GC/GCS/GCT/GS TACT SWITCH / MIC / DECK MECHANISM CIRCUIT
10
11
12
SA-VK660GC / SA-VK660GS / SA-VK660GCS / SA-VK660GCT
13
14
A
H6900
1
GND2
2
MIC_VOL
C
TO
3
MIC_SW
PANEL CIRCUIT
(H6556)
4
MIC_MUTE
IN SCHEMATIC
0
5
MIC_GND
DIAGRAM - 10
B
6
+9V
7
NC
W6883
0
R6913
330
Q6903
C
B1ABCF000176
MIC AMP
R6914
R6911
100
0
W6882
C6915
0
50V0.33
D
E
F
G
H
13
14
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