JBL JSR-400 Service Manual page 57

I J
TO CN3
WA3
402
00K
R401
00K
CN2
C905
10/16
1
2
3 TO CN10
4
WA10
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
K L
TO CN9
WA1
47K
C142 R160
0.42/50
R154
R156
10K C144
47K
0.47/50
C140
47/16
R152
47
IC13
NJM4558DD
R52
47K
C138
R157
47/16
4.7K
+
C141
10/16 R158
12K
C143
R153
10/16
+
47K
+24V
1
PO.RE
2
CPU 5V
3
G
4
G
5
IC 5V
6
G
7
+15V
8
9
-15V
TO CN11
WA11
G C G R G L
+
R56
C25
1K
10/16
R60
C56
56K
470p
M N
C22
100P
C19
R18
C27
10/16
1K
+ 100/50
C21 R25
R27
R20
10/16
47K 3.3K
1K
+
R26
47K R29
C33
47K
220P C42
220P
R28
C31 12P
3.3K
C28
100/50
R501
C29
3.3K
100P
Q22
D1302
D21 R502
10K
1N4148
R149
R150
R145
470 470
470
Q21
KRA101M
0V
2.4V
2.4V
2.4V
2.4V
Q15
KRA101M
Q16
0V
KRA101M
0V 0V
0V 0V
0V
Q19
Q20
Q17
1K D1302
D1302
D1302
R148
0V
1K
R147 R144
R143
0.7V
0V 1K
0V 1K
0V
0.7V
C53
10/50
R54
100
37
R136
0
0.275W
1 38
12
O P
R31
100
L2
C44
0.7UH
37
10/50
0
1
12 38
R53
IC3A
10F
11
0
STK4192
9
-37
10
8
0 7 -38
R403
6
-36
2 -38
5
10F
3 4
0
-1.4
1K
0 C908
R39
0.047u
R32
3.3K
R33
C47
3.3K R38 10/50
150K
C32 12P
R30
47K 0.7UH
0
18
IC3B
0
STK4192
14
13
0
15
-38
17
16
-1.4
0
R40
R41
C50
1K
3.3K
47/50
R51
3.3K
OV
R81
R78
R146
101W
75K
10K
2.2V
1N4148
Q2
0V
R310 D4
KRC103M
RY7B
Q18 2.2K
0V
3V
D1302
0V
2.2V
Q1
R80 C3227 0.8V
1K
0V
R79
0.7V
1.4
C26
10K
C96
100/35
1/50
D18 C70
1N4148 4760/10
R93
33K
R72
10F
D13
R92 R170
1N4148
33K
33K
R171
L3
C66 33K
0.7UH
0.047u
1N4148
Q R
JSR-400 PAGE 42 - 2 of 4
REAR L
1
2
4 OHM SPEAKERS
3
REAR R
4
SP4B
R400
33K
R87
68K
CN1 PIN DESCRIPTION
R174
10F
1 STEREO
C900 2
TUNED
0.047u 3
T MUTE
4 DATA
L1
5 CLOCK
6
PLL IC CHIP ENABLE
CENTER
7
LINE MUTE
R37 SP3
8
10F FU1 POWER RELAY
9
SPEAKER RELAY
2
10
VOLUME UP
1 11
VOLUME DOWN
R91 12
13
33K
REAR CENTER MUTE
14
VIDEO
15
VCR
16
DOLBY MODE
17
BYPASS
18
DOLBY IC DATA
19
DOLBY IC CLOCK
20
DOLBY IC CE
21
FUNCTION IC CE
22
23
24
Q3
GROUND
25
A1266
C.P.U. 5V
26
GROUND
0V 26V
10K
26V
R22
R301
10K
2.2V
Q11
C3198
Q12
C3198
2.2V
0V
0V
0V
R82
22K
C709
+
1/50
JACK 3
C710
1/50
1
+
2
1
2
3
4
5
6
7
8