JBL JSR 400 Service Manual ▷ View online
8
5
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6
3
2
1
I
J
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CN1 PIN DESCRIPTION
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
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25
26
STEREO
TUNED
T MUTE
DATA
CLOCK
PLL IC CHIP ENABLE
LINE MUTE
POWER RELAY
SPEAKER RELAY
VOLUME UP
VOLUME DOWN
REAR CENTER MUTE
VIDEO
VCR
DOLBY MODE
BYPASS
DOLBY IC DATA
DOLBY IC CLOCK
DOLBY IC CE
FUNCTION IC CE
GROUND
C.P.U. 5V
GROUND
R401
00K
402
00K
WA3
TO CN3
C905
10/16
IC13
NJM4558DD
R156
47K
R154
10K
R52
47K
R157
4.7K
R159 4.7K
C140
47/16
C138
47/16
C144
0.47/50
C142
0.42/50
47K
R160
C19
10/16
C21
10/16
R25
47K
R26
47K
R18
1K
R20
1K
C33
220P
C42
220P
R501
3.3K Q22
3.3K Q22
D1302
C29
100P
C28
100/50
0
0
18
17 16
15
-1.4
0
14
-38
R30
47K
0
13
R91
33K
R87
68K
R174
10F
R400
33K
C908
0.047u
R403
10F
L2
0.7UH
R53
10F
C44
10/50
0
10
9
11
38
-38
37
12
8
7
6
5
0
-38
-37
IC3A
STK4192
0
0
2
1
3 4
-36
0
-1.4
R32
3.3K
R33
3.3K
R38
150K
1K
R39
C47
10/50
C46 10/50
R35 10K
R34 100
C22
100P
C27
100/50
R27
3.3K
R29
47K
R28
3.3K
C31 12P
C32 12P
IC3B
STK4192
R31
100
C900
0.047u
L1
0.7UH
R37
10F
C50
47/50
R40
1K
R41
3.3K
R51
3.3K
R78
75K
OV
2.2V
3V
CPU
RELA
Y
DRIVE
R310
2.2K
RY7B
2.2V
R79
10K
C26
100/35
R80
1K
0.0047u
REAR L
REAR R
4 OHM SPEAKERS
SP4B
C916
1
2
3
4
2
3
4
C915
0.1u
2
1
1
CENTER
SP3
FU1
C914
0.1U
10K
R22
2.2V
10K
R301
26V
0V
26V
R81
101W
Q3
A1266
2.2V
0V
0V
Q12
C3198
Q11
C3198
R82
22K
0V
0V
1N4148
D4
C70
4760/10
SUB WOOFER
1
2
JACK 3
C709
1/50
C710
1/50
R170
33K
R171
33K
R173
R93
33K
R92
33K
CN2
TO CN10
WA10
+24V
PO.RE
CPU 5V
G
IC 5V
G
+15V
-15V
9
10
11
12
13
14
7
7
8
6
6
5
5
5
4
4
4
3
3
3
2
2
2
1
1
1
25
26
23
24
21
22
19
20
9
15
16
7
17
18
8
13
14
6
11
12
5
9
10
4
7
8
3
5
6
2
3
4
1
1
2
G
REAR
G C G R G L
TO CN11
WA11
VO.UP
VO.DO
PO.IND
15V
G
-25V
REAR
G
CENTER
G
L
OUT
G
R
OUT
G
TO CN9 WA1
VIDEO
IN
G
5V
VCR
VIDEO
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
1
2
3
4
8
7
6
5
Q16
KRA101M
R146
10K
1K
R143
0V
Q20
D1302
Q19
D1302
Q17
D1302
Q18
D1302
0V
R153
47K
C143
10/16
C141
10/16 R158
12K
R151 47
R152
47
D21
R502
10K
1N4148
R147
1K
R144
1K
C52 47/50
C53
10/50
R54
100
LA
Y
R56
1K
C56
470p
C25
10/16
R60
56K
0 1
38
37
12
R136
0.275W
1N4148
L3
0.7UH
C66
0.047u
D13
1N4148
R72
10F
Q2
KRC103M
Q1
C3227 0.8V
0.7V
1.4
D18
1N4148
C96
1/50
R150
470
0V
2.4V
2.4V
2.4V
R149
470
1K
R148
Q21
KRA101M
Q15
KRA101M
0V
0V
0V
0V
2.4V
0V
0V
0V
0V
R145
470
0V
0V
0.7V
0.7V
0V
JSR-400 PAGE 42 - 2 of 4
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7
10
13
9
11
12
8
VCR
OUT
VCR
R15
330
100P
C15
100P
C14
100P
C16
100P
R14
330
R16
330
Q6
KRC103M
KRC103M
Q8
KRC103M
0V
0V
0V
DOLBY
R50
150K
-15V
15V
R49
150K
-15V
0V
15V
15V
0V
0V
BY PASS
-15V
INPUT PART
15V
STEREO
TUNED
T-
MUTE
DI
CL
CE
15V
G
WA12
G
+15
-
R23
47K
R24
47K
7
8
6
5
4
3
2
1
25
26
23
24
21
22
19
20
9
7
18
8
1
3
3
2
2
4
4
R
R
L
JACK15
BEFORE RETURNING THE RECEIVER TO THE CUSTOMER
LEAKAGE CURRENT OR RESISTANCE MEASUREMENTS
SHOULD BE PERFORMED TO DETERMINE THAT EXPOSED PARTS
ARE PROPERLY INSULATED FROM THE SUPPLY CIRCUIT.
CAUTION TO THE SERVICE TECHNICIANS
1.25A/250V
1. ALL RESISTANCE VALUES ARE IN .
K -1000W. M
-1000K .
2. THE WATTAGE OF RESISTORS IS 1/4W, 1/8W UNLESS OTHERWISE NOTED.
3. ALL CAPACITANCES VALUES ARE IN uF UNLESS OTHERWISE NOTED. P=uuF
W
W
W
W
*NOTE
CAUTION THE PARTS IDENTIFIED WITH THE IEC SYMBOL
MARKS ARE CRITICAL FOR SAFETY. REPLACE ONLY WITH
TYPE IDENTICAL TO THOSE IN THE ORIGINAL CIRCUIT OR SPECIFIED
IN THE “PARTLIST” DO NOT DEGRADE THE SAFETY OF THE APPLIANCE
THROUGH IMPROPER SERVICING.
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
DIGIT
A
L
GROUND
L OUT
PART DECODER
IC10
NJW1102
C130 220/10
R127 15K
C129
1800P
R123 330K
C122 4.7/50
FORM RELAY
TO
DELA
Y
R193 4.7K
C133 10/16
R192 10K
S
CEN
R131 22K
R32 10K
C134 0.1u
C136 10/16
C135 10/16
RLC5
4V
PSC4 2.7V PSC1
4V
PSC5 2.7V PSC2
4V
PSC6 2.7V PSC3
4V
DBC3
0
DBC2
4V
DBC1
4V
LPIN
4V
DBIN
4V
IREF 1.4V
VREFG
4V
VREF
4V
GND
4V L-R 4V L+R 4V
SIMA
4V
SIMB
4V SD 4V
SMR1
4V
SMRO
4V
CMC
4V
SOUT
4V ST 4V
COUT
4V CT
RLC2 4V RLC1 4V RLC4 4V RLC7 4V RLC3 4V RLC8 4V RLC6 4V LL1 4V LBPF 4V RL1 4V RBPF 4V LT 4V RT 4V LIN 4V RIN 4V HOLDC 4V VCC 12V NGC3 4V NGC2 4V NGC1 2.5V VDD 4V DA
TA
D SCK 5V REQ 5V IDS D VSS D LOUT 4V ROUT}
4V
R
OUT
C1
16
10/16
C1
15
10/16
C1
14
100000p
C1
12
0.0033u
R121 4.7M
R122 220K
R120 22K
C1
10
100/16
R1
16
47K
R1
19
22K
R1
17
15K
R1
13
47K
R1
14
15K
C105 0.1u
C101 680P
C99 0.022u
C100 0.1u
C107 10/16
C106 0.1u
C108 10/16
C103 0.1U
C109 10/16
C
111
47/16
C1
13
22/16
R1
15
7.5K
R1
18
7.5K
C102 0.1u
C104 680P
C95 0.1u
C98 0.022u
C94 0.047u
C97 0.1u
C95 0.047u
4V
D19
1N4148
R17
2.2K
R19
2.2K
L INPUT
R INPUT
VCC
15V
D6
1N4148
C902
100000p R11
47
5V
VDD
D9
1N4148
R102
43K
R99
10K
C77
100000p
6V
R98
56
C78
47/16
R100
15K
C80
0.0022p
DELAY IN
C85
47/16
R103
R103
22
C79
560p
C86
5600P
R107
20K
R106
10K
C87
560p
R105
15K
C84
0.1u
C706
10/16
R104 22
C81 0.1u
C82 0.047u
C83 0.047u
R108
47
C88
47/16
C912 0.1u
X1
2MHZ
R109
1M
C89 33P
C90 33P
C93 100P
C91 100P
C92 100P
R1
12
1K
R1
1
1
1K
R1
10
1K
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
DELAY OUT
IC11
NJU9702D
VCC 5.3V L1IN 2.7V
L1OUT
2.7V
01OUT
2.7V 01IN 2.7V REF 2.7V CC1 0.6V CC2 0.6V
01IN2.7V
02OUT
2.7V L2IN 2.7V
2.7V
L2OUT
VDD 6V XIN 2.5V XOUT 2.7V REQ 5V SCK 5V DA
TA
0 IDSW 0 IG 0 T1 0 T2 0 DG 0 AG 0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
C1
17
0.1u
C1
18
0.22u
C1
19
0.22u
C123 4.7/50
C120 0.22u
C124 0.068u
C121 0.22u
C126 5600P
C125 0.047u
R124 22K
R125 15K
C128
470P
R128 110K
JSR-400 PAGE 42 - 3 of 4
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24
25
26
GROUND
C.P.U. 5V
GROUND
R78
75K
OV
2.2V
3V
CPU
RELA
Y
DRIVE
R310
2.2K
RY7B
2.2V
R79
10K
C26
100/35
R80
1K
10K
R22
2.2V
10K
R301
26V
0V
26V
R81
101W
Q3
A1266
2.2V
0V
0V
Q12
C3198
Q11
C3198
R82
22K
0V
0V
1N4148
D4
C70
4760/10
SUB WOOFER
C913
0.1u
1
2
JACK 3
C709
1/50
C710
1/50
R170
33K
R171
33K
R173
1.8K
R172
1.8K
R93
33K
R92
33K
RY7A
C910
0.1u
C91
1
0.1u
R75
10F
R76
10F
C67
0.047u
L
G
G
R
G
G
R
1
2
3
4
2
3
4
SP4A
HEAD PHONE OUT
WA2
L
R
G
R
G
R71
56K
TO CN2
D7
1N4002
C68
33/50
WA8
1N4148
D8
R70
1.5K 1W
D20
KRU 602
AC
G
AC
G
AC
+38V
-38V
C71
100/50
C800
6800/50
C801
6800/50
Q13
C3198
L4
0.7UH
R73
10F
R74
0.27 5W
R84
18K
0
13
-38
14
C61
12P
D1
1
1N4148
R77
1K
R66
56K
R63
1K
-1.4
15
16
17
0
0
0
18
R64
3.3K
R65
3.3K
C59
47/50
R500
10K
Q10
A1266
C60
100P
IC 5V
R134
10K
R133
10K
R97
100
R130
5.6K
P01
C74
100P
Q4
C3198-GR
STEREO
TUNED
T-
MUTE
DI
CL
CE
15V
G
L-OUT
G
R-OUT
G
WA12
G
+15V
-15V
9
10
11
12
7
7
8
6
6
5
5
4
4
3
3
2
2
1
1
25
26
23
24
21
22
19
20
9
7
18
8
REAR
G C G R G L
TO CN11
WA11
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
3
3
2
2
1
1
Q16
KRA101M
R146
10K
1K
R143
0V
Q20
D1302
Q19
D1302
Q17
D1302
Q18
D1302
0V
R147
1K
R144
1K
C52 47/50
C53
10/50
R54
100
DIGIT
A
L
GROUND
L OUT
R
TO
DELA
Y
10/16
S
CEN
R131 22K
R32 10K
C134 0.1u
C136 10/16
C135 10/16
4V SD 4V
SMR1
4V
SMRO
4V
CMC
4V
SOUT
4V ST 4V
COUT
4V CT
2.
5V
VDD 4V DA
TA
D SCK 5V REQ 5V IDS D VSS D LOUT 4V ROUT}
4V
R
OUT
C1
16
10/16
C1
15
10/16
C1
14
100000p
5V
VDD
JSR-400 MAIN BOARD SCHEMATIC DIAGRAM
R56
1K
C56
470p
C25
10/16
C57
470p
R60
56K
C51
100p
R61
56K
R57
1K
C48
10/16
C65
100/50
R69
3.9K
C64
100/50
R68
3.9K
R67
56K
C63
12P
R58
3.3K
R55
3.3K
R59
100
R62
1K
C54
47/50
0
0
1
2
3 4
5
6 7
8
9
0
10
10
11
38
37
12
-37
-38
-38
-1.4
0
0
IC2A
STK4192
C55
10/50
D10
1N4148
R83
18K
Q5
C3198
R139
1K
R136
0.275W
1N4148
D14
L3
0.7UH
C58
10/50
C66
0.047u
D13
1N4148
R72
10F
Q2
KRC103M
Q1
C3227 0.8V
0.7V
1.4
D18
1N4148
C96
1/50
0V
2.4V
2.4V
2.4V
1K
R148
Q21
KRA101M
Q15
KRA101M
0V
0V
0V
0V
2.4V
0V
0V
0V
0V
0V
0V
0.7V
0.7V
0V
20
21
22
23
24
25
26
27
28
37
36
35
34
33
32
31
30
29
JSR-400 PAGE 42 - 4 of 4
H
G
F
F
G
H
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C
B
A
A
B
C
D
E
J
I
I
J
1
32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64
SEG01 SEG02
/K56
SEG03
/K55
SEG04
/K54
SEG05
/K53
SEG06
/K52
SEG07
/K51
SEG09 SEG10 SEG1
1
SEG12 SEG13 SEG14 SEG15 SEG16 GRID08 GRID07 GRID06 GRID05 GRID04 GRID03 GRID02 GRID01 -27V OPTION
0
OPTION
1
OPTION
2
REMOCON NC +5V
POWER
OFF
SEG08
/KS01
102
GND X-T
AL
X-T
AL
RESET OPTION T-MUTE 7821
CE REQ
1102
SCK
1102
DA
TA
BY=P
ASS
DOLBY
KR03 KR02 KR01 KR00 VCR VIDEO
R/C
MUTE PO.IND VOL.DN VOL.UP
SP
FRONT
POWER
ON
A-MUTE PLL
CE
P/F
CL
P/F
DI NC +5V
TUNED STEREO
IC1
CXP82712
R20
R19
R18
R25
R24
100K
100K
100K
100K
100K
SW39
VCR
SW32
HALL
SW42
AUTO
SW37
CD
SW40
VIDEO
SW35
BYPASS
SW38
TAPE
SW30
PROLOGIC
SW33
CENTER
SW29
SPEAKER
OFF
SW36
TUNER
SW44
TUNING UP
SW31
3 STEREO
SW34
TEST TONE
SW19
POWER ON/OFF
SW41
AUX
SW43
TUNING DOWN
SEG16 SEG15 SEG14 SEG13 SEG12 SEG1
1
SEG10 SEG9 SEG8 SEG7 SEG6 SEG5 SEG4 SEG3 SEG2 SEG1
GRID08 GRID07 GRID06 GRID05 GRID04 GRID03 GRID02 GRID01
AC AC
AC AC
V.F.D.
F L T 1
RMC OPTION
1N4148 1N4148 1N4148 1N4148 1N4148 1N4148
D1
10
D109 D108 D107 D106 D105
KR0
KR1
KR2
KR3
KS6
KS5
KS4
KS3
KS2
NJW
NJW
NJW1
LC4966
LC496
GD4
GD40
REAR/C
VO
S
PO
LC7821 CL PL
LC7821 DI
C8
330P
C7
330P
C6
330P
R1
10,1
T
D
1N4
+
C1
1
0.047F
R16
10K
R15
10K
R14
10K
C22
0.1u
R21
220
1/4
X1
10MHz
LED1
R6
1M
JSR-400 PAGE 43 - 1 of 2
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