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Kenwood kac-9104d Service Manual
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Kenwood kac-9104d Service Manual

Class d mono power amplifier
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See also: Training Manual , Instruction Manual
CLASS D MONO POWER AMPLIFIER
KAC-9104D

SERVICE MANUAL

Fuse (30A)
(F52-0015-05)
FUSE[30Ax2]
Accessories
(W01-1606-05)
P .CON
BASS BOOST
LEVEL[dB]
POWER IN
SPEAKER OUTPUT
Screw & wrench key set
(N99-1820-05)
This product complies with the
© 2008-1 PRINTED IN JA PAN
B53-0611-00 ( N ) 519
0û
180û
OFF 15Hz
25Hz
ISF
PHASE
[MIN]
[MAX]
LPF
INPUT
FREQUENCY[Hz]
SENSITIVITY[V]
SP LEVEL INPUT
SIGNAL SENSING
LINE IN
LINE OUT
TURN-ON
Connecting cord assy
(E30-6145-05)
19cm
This product uses Lead Free solder.
RoHS
Dressing Panel
(A21-6637-01): (E,K type)
(A21-6638-01): (M type)
E,K type
M type
directive for the European market.

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  • Page 1: Service Manual

    CLASS D MONO POWER AMPLIFIER KAC-9104D SERVICE MANUAL © 2008-1 PRINTED IN JA PAN B53-0611-00 ( N ) 519 Dressing Panel (A21-6637-01): (E,K type) (A21-6638-01): (M type) E,K type M type Fuse (30A) (F52-0015-05) 0û 180û FUSE[30Ax2] P .CON OFF 15Hz...
  • Page 2 +6dB IC3(1/2) SENS. FREQ=40Hz I.S.F IC2(2/2) IC3(2/2) Bass 15Hz ISO-AMP L.P.F Boost 25Hz FREQ LEVEL I.S.F (50~200Hz) 0~18dB SEL. +35dB Q315 Q313,314 MUTE Q105-107, IC6(2/2) IC8,9 Q102-104,108,109 Q110-112 Q701-704 LEVEL SUMMING DEAD FINAL COMP DRIVE LC FILTER OUTPUT SIFT TIME MOS-FET IC6(1/2) TRIANGLE...

  • Page 3: Components Description

    KAC-9104D COMPONENTS DESCRIPTION ● AUDIO UNIT (X09-8750-10) Ref. No. Application / Function Operation / Condition / Compatibility Isolation amplifi er Isolates noises caused by potential differences in GND Phase Change phase (0° → 180°) INFRA SONIC FILTER Cuts off ultra low frequency of audio signal...

  • Page 4: Pc Board (Foil Side View)

    KAC-9104D PC BOARD (FOIL SIDE VIEW) AUDIO UNIT X09-8750-10 (J76-0475-11) W152 R190 R188 Q703 Q704 R199 W145 R200 Q701 W144 Q702 W128 W114 W149 W129 W115 W120 R162 W121 W154 W155 W158 W153 C619 W241 W507 W242 C145 Q303 C146...
  • Page 5 KAC-9104D R195 Q110 Q107 Q112 R196 R180 R194 Q109 C153 Q111 R903 W259 R176 R178 D-SWITCH Q108 R203 D113 R308 Q104 C314 R340 R341 R309 C134 C155 C154 IC10 IC14 R335 VOLT R336 R306 C307 R321 R312 R329 R327 R328...
  • Page 6 KAC-9104D (X09-8750-10) +15V TP161 OFF/ON TP160 INFRA (1/2) SONIC FILTER TP130 ISO. AMP TP132 TP138 (1/2) R101 C103 TP143 R111 10u50 R105 R107 (2/2) C110 TP162 10u50 (1/2) C107 R129 R108 R110 100P TP156 3.9K C108 R114 R126 10K R113...
  • Page 7 KAC-9104D +15V +15V I.S.F L.P.F INFRA OFF/15Hz/25Hz 18dB 50-200Hz 24dB GAIN=0 TP167 TP174 SONIC INPUT SENS FILTER TP180 0-+18dB F=40Hz R148 2.2K C126 TP185 TP184 4.7u50 C124 TP163 TP173 R141 TP168 TP169 (1/2) 0.033 R144 (2/2) C122 R133 TP171 TP172...
  • Page 8 KAC-9104D IC1-6,11,14,16 BA4560RF IC7,10,13 BA2903F IC8,9 SN74HC00D IC15 TL494IDR TP294 IC17 BA10358F D307 D308 IC5(1/2) TP183 R148 Q1,2,4,10,101,305,308-310, R339 R336 100K TP289 313-315 2SC4081 2.2K 2.2K 2SB1241 IC14(2/2) Q5,6,28,29,102,306,307 TP290 TP288 R150 2.2K R342 R341 R340 2SA1576A C314 C313 C312...

  • Page 9: Exploded View

    KAC-9104D EXPLODED VIEW : N09-6365-05 φ2.6x13 M4x8 : N09-6726-05 : N80-3010-43 φ3x10 : N89-3006-43 φ3x6 : N89-3008-48 φ3x8 : N89-3016-48 φ3x16 : N09-6447-05 φ3x10 : N80-2008-43 φ2x8 M6 AU : N07-0003-08 M4 AU : N09-4214-08 (X09-875) Parts with the exploded numbers larger than 700 are not supplied.

  • Page 10: Parts List

    CHIP C 0.010UF K C327,328 CD04BJ1H100M ELECTRO 10UF 50WV C105 CC73GCH1H330J CHIP C 33PF C601-615 CK73GB1H103K CHIP C 0.010UF K E1 : KAC-9104D (Europe) K : KAC-9104D (North America) Indicates safety critical com po nents. M1 : KAC-9104D (Other Areas)
  • Page 11 CHIP R J 1/10W R62,63 RD14DB2H220J SMALL-RD 22 J 1/2W R161 RK73GB2A683J CHIP R J 1/10W R162 RD14BB2C243J J 1/6W E1 : KAC-9104D (Europe) K : KAC-9104D (North America) Indicates safety critical com po nents. M1 : KAC-9104D (Other Areas)
  • Page 12 W218-220 R92-2053-05 CHIP R 0 OHM J 1/8W R330 RK73GB2A223J CHIP R J 1/10W W221-225 RK73GB2A000J CHIP R J 1/10W E1 : KAC-9104D (Europe) K : KAC-9104D (North America) Indicates safety critical com po nents. M1 : KAC-9104D (Other Areas)
  • Page 13 ZENER DIODE D309 1SS355 DIODE Q701-704 ✽ IRFP250NPBF D310 UDZS10B ZENER DIODE NCP18WB473J0S THERMISTOR D311,312 1SS355 DIODE D313 UDZS6.2B ZENER DIODE E1 : KAC-9104D (Europe) K : KAC-9104D (North America) Indicates safety critical com po nents. M1 : KAC-9104D (Other Areas)

  • Page 14: Specifications

    Weight ................3.4 kg Infrasonic Filter Frequency (-18 dB/oct.) ....15 / 25 Hz Bass Boost Circuit (40 Hz) ....0 – +18 dB (variable) KENWOOD follows a policy of continuous advancements in development. For this reason specifications may be General changed without notice.

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