C) Panel Circuit & (D) Tact Switch Circuit - Panasonic SA-VK31EE Service Manual

16.4. (C) Panel Circuit & (D) Tact Switch Circuit
SCHEMATIC DIAGRAM - 10
PANEL CIRCUIT
C671
0.022
L605
JK600
J0JKB0000020
4
5
2
MIC1 3
6
7
1
JK900
4
5
2
MIC2
3
6
7
1
TACT SWITCH CIRCUIT
R905
2.2K
R906
2.7K
1
7
C621
6
0.022
HEADPHONE
3
2
5
4
JK601
: +B SIGNAL LINE
C672 L634
0.01 J0JKB0000020
Q900
2SC1740SSTA
LIMITER
L608
Q900
G0C100JA0030
R970
C918
C919
680
R938
50V3.3
470P
R972 C669
470K
560
0.01
C916
R939
4.7K 50V4.7
C922
0.01
R969
680
L607
J0JKB0000020
R904 R902
R903 R901
1.8K 1.2K 1K 1K
R907 R908
R909 R910
4.7K 6.8K 10K 22K
3
C901
100P
2
C902
100P
1
VR600
EVEKE2F3524M
JOG VOL
C625 0.01
L604
RLQZP100KT-Y
C619
0.047
C620
0.022 L603
RLQZP101KT-Y
L602
RLQZP101KT-Y
L609
RLQZP101KT-Y
: MIC SIGNAL LINE
: MAIN SIGNAL LINE
KTC3199GRTA
R690 R684
8.2K
330K
R937
2.2K
R682
C663
330K
50V1
C670
C665
Q607
50V0.33
100P
C662
C917
0.047
R683 C664
R697
1000P
1000P
68 4.7K
Q607
2SC1740SSTA
MIC AMP
R928
22K
R929 R940
22K
8.2K
10
C910 C911
4700P
0.015
11
R971
10K
12
C912
0.033
13
R990 R936
D906
39 39
B0BA5R000004
14
C913
0.01
15
16
R935
82K
C914
150P
R934
22K
CN900
MICSW_1 MICSW
8 8
K2
K2_1
7
7
6 6
5 5
R900
VJOG_B
VJOG_B
10K 4 4
VREF+
VREF+
3 3
VJOG_A
2 2
R912
47K 1 1
CP900
R913
47K
L611
J0JKB0000020
L612
J0JKB0000020
61
Q606
MIC AMP R694
3.3K
C666 C667
1000P
10V100
Q606
VR602
EVUF2AF25B14
C920 C903
50V1 50V1
R927
R926
R930 C906
100
100
0.015
15K
9 MIX IN MIX OUT 8
ADLPF IN
7
DALPF OUT
C904 R931
4.7K
3300P
ADLPF OUT
6
DALPF IN
R932 C905
50V0.47
10K
ADINT IN
5
DAINT OUT
C907
0.033
ADINT OUT
4
DAINT OUT
C908
16V22
VCC BIAS 3
IC900
MUTE ECHO VR 2
C909
0.01
CR CR 1
R941
18K
IC900
R933
C1BB00000716 1K
ECHO IC
VJOG_A
SA-VK31EE
MICSW
+9.0V
MIC
ECHO_LVL
MUTE_E
+9.0V
MICSW
K2
VJOG_B
VREF+
VJOG_A
C627
0.1
DVREF+
HPR
HPL
HP_SW