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POWERED SUBWOOFER
SW-26HT/26HT-S
SERVICE MANUAL
2002-8 PRINTED IN KOREA
B51-5812-00 (K/K) 495
Grille ass'y
(B06-1625-08) SW-26HT RCA jack SW push Control rotary Control rotary
(B06-1627-08) SW-26HT-S (E63-0213-08) (S68-0203-08) (R31-0418-08) (R31-0419-08)
Led Fuse holder AC power cord
(B30-1832-08) (J13-0212-08) (E30-5998-08): E
Switch rocker (E30-7003-08): T
(S66-0204-08) AC power cord bushing
(J42-0243-08)
SPECIFICATIONS
Type ...................................Subwoofer system with built-in amplifier Speaker Units ................................160 mm (6-1/2") Cone type
Nominal Impedance ............................................................4
[Amplifier] Dimensions ....................................Width : 290 mm (11-7/16")
Rated Output Power .....................50 W RMS (100 Hz, 0.1%, 4 )
Height : 300 mm (11-13/16")
Input Sensitivity & Input Impedance ....................100 mV / 43 k
200 mV / 43 k (MONO) Depth : 420 mm (16-9/16")
Rated Power Consumption ....................................................50 W Net Weight ..........................................................10 kg (22.0 lb)
Supplied accessories
[Speaker] Pin-plug cord ................................................................1
Enclosure ...................................Bass-Reflex, Floor Standing Type
Cushion ........................................................................4
Notes:
1. Kenwood follows a policy of continuous advancements in development. For this reason, specifications may be
changed without notice.
2. Full performance may not be exhibited in extremely cold locations (below 0 deg. C). 70%
SW-26HT/26HT-S
CONTENTS / ACCESSORIES
Contents
SPECIFICATIONS ....................................Front cover SCHEMATIC DIAGRAM ...........................................4
CONTENTS / ACCESSORIES .................................2 EXPLODED VIEW ....................................................6
PC BOARD ...............................................................3 PARTS LIST ..............................................................7
Accessories
Pin-plug cord (1) Cushion (4)
(E30-5964-08) (G13-1141-08)
2
A B C D E
PC BOARD(Component side view)
1
CROSSOVER LINE OUTPUT
R184
C146
C147
P2
P501 C601
Q603 F951
C140
C605
VR102 CN105 T0.63AL 250V
B E 1
CN951
R611 JK103
2 LD101 1
C604
Q604 Q605
Q602 1 9
E B R183 3
2
R610
B E
F952
R605
R604
CN103B
C603
E B R139 T0.63AL 250V
R138
R606 R609
BD951
C602
E B Q102
JMP16
T1
R602
R140
C961
R136 C951 C952
R607
D601
R608
R951
E B
R137
C953
R952
C955
JMP17
R603 Q101
D602
Q110
Q601
R601 1 3 E B
B E
C138 C137 R157 C954 C958
JMP10 CN101
R158 C957 IC952
C409
C407
E C136
C135 IC951
JMP1
P4 P5 O
C956
3 JMP12 C119 C117
JMP15
JMP8 I G O I
C960
B R128 R127
T3.15AL 250V
T3.15AL 250V
R416
R152
G
C411
R129
R151
F901
F902
2 8 5
Q409 R130C153 R120 C959
BD101
JMP5
JMP3
R100
C412
C154
R131
R164
1 IC102
C118
ZD101 1
C131
JMP20
CN102 1 4
C112
B E
R132 D101
RL101
R113
L101 C121 R176
C122
C125
Q407
R134 R133
C102
D102
C123
R407
R405
C104 R135
P6 C106 6
R110 C120
ZD103 R126 RB104
C110
Q403
Q402
R104
LINE INPUT
E B E B C413 D104 C142
JK101
Q107
E B
R510 C133 R102 C114
R118
RL901
R161
R406 C408 C402 R124
C509 R122
JMP9
C410 R417
4 C111 C113
D105
R413 Q902
R103
Q401 C414 R162 RB103
Q404
R123
7 1
B E
R404
R412B
R415
Q109
E B R403 E B 9
R402
R154 B E C101
R116
C406 C403 IC101
C510
R414
D103 R155 B E R101
Q408
C507
R156 E B Q901 VR101 8 14
ZD401
JMP7
C505
Q108 D903 C149 C109
R125
E C132 JMP11
VOLUME
R401
C401 R168 C107
JMP6
C502 Q502 Q501 R115
R153
JMP4 R112
1 R114 R119
B E B E
B R505
JMP2
C504 1 R167 R117
C148
CN104
JMP19
R411 R514
R511 R515
Q406
1 8 C115 C116
R418 C124 C108
E B
IC501
R509 R504 R503 JMP14
Q405
R409 E B R507 R501 6
R408 C506 JMP18
R506 4 5
PHASE SW
R502 R181
C404 D401 C508 P3
5 R508 R513 R111
C405 R410 D502 SW102 R180
D501
6
7
Refer to the schematic diagram for the value of resistors and capacitors. 3
A B C D E F G H I J
12.5V R401
1 +30V
PHASE SW
C405
D401 R408
R409
1K 30.0V
ZD401
0.1
51
51
100u16
JK101
C401
R101 R103 C106 POWER
+
1/2W
10K 47K 4.7u50 SW102 C109 15V Q408
C404
L/MONO
100u25
0.1
4.7u50
0.002
C116
C115
+ VOLUME 29.4V
R126
C101
33
100P
+ L101
R111
SPK.
10K
SUB WOOFER
+
C108 VR101-A 1uH
Q405
R181
RELAY
100K
R119
0.22 5W
4.7K
LINE 4.7u50 10K(B)
R415
R402
R410
28.8V
6.2K
12K
INPUT + DRIVER RL101 CN102 RB102
C125
0