Kenwood KAC-8402 Service Manual
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- Instruction manual (21 pages) ,
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- Instruction manual (9 pages)
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POWER AMPLIFIER
KAC-8402/8452
QQ
3 7 63 1515 0
SERVICE MANUAL
KAC-8452
(E type,M type)
TE
L 13942296513
www
.
CONTROL SYSTEM
Fuse (40A)
(F52-0016-05)
Accessories
(W01-1606-05)
x
ao
y
i
8
Q Q
3
6 7
1 3
Screw set
Connecting cord assy
(N99-1759-05)
(E30-6144-05)
u163
.
2 9
9 4
2 8
© 2005-3 PRINTED IN JAPAN
B53-0250-00 ( N ) 1708
channel
Powe
Amplifie
Dressing Panel
(A21-4464-02)
Dressing Panel
(A21-4469-02)
(A21-4470-02)
(A21-4524-02)
1 5
0 5
8
2 9
9 4
KAC-8452
KAC-8402
m
19cm
co
This product uses Lead Free solder.
9 9
: KAC-8452(K type)
: KAC-8402
2 8
9 9
: KAC-8452(E type),
KAC-8452(M type)
(K type)
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Table of Contents
Related Manuals for Kenwood KAC-8402
Summary of Contents for Kenwood KAC-8402
- Page 1 KAC-8452 (E type,M type) channel CONTROL SYSTEM Powe Amplifie Dressing Panel (A21-4464-02) Dressing Panel (A21-4469-02) : KAC-8452(K type) (A21-4470-02) : KAC-8402 (A21-4524-02) L 13942296513 : KAC-8452(E type), KAC-8452(M type) KAC-8452 (K type) KAC-8402 Fuse (40A) (F52-0016-05) Accessories Screw set Connecting cord assy...
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Page 2: Block Diagram
KAC-8402/8452 BLOCK DIAGRAM 3 7 63 1515 0 INPUT SENS Q201-225 IC5 (X08) Q241,242 ISOLATION SPEAKER 12dB MUTE POWER AMP AMPLIFIER OUTPUT LINE IN FREQ HPF/OFF IC1 (X08) ISOLATION 12dB SPEAKER POWER AMP MUTE AMPLIFIER OUTPUT INVERT ST/MONO INPUT SENS... -
Page 3: Components Description
KAC-8402/8452 COMPONENTS DESCRIPTION 3 7 63 1515 0 PREAMPLIFIER UNIT (X08-4200-10) Ref. No. Application / Function Ref. No. Application / Function Q220 For ACH final current amplifying IC1 (2/2) ARch reversal buffer Q221 For ACH voltage amplifying step differential amplifying... -
Page 4: Pc Board (Foil Side View)
KAC-8402/8452 PC BOARD (FOIL SIDE VIEW) 3 7 63 1515 0 BLch 2.5mV ARch 2.5mV AUDIO UNIT X09-5840-1x A/2 (J76-0074-11) DC voltmeter DC voltmeter Q623 W277 W244 W573 W296 W245 W275 W519 W520 W548 W572 W524 W318 TH602 W521 W525... - Page 5 KAC-8402/8452 3 7 63 1515 0 ALch 2.5mV X09 B/2 DC voltmeter D600 W140 W133 W515 R251 R257 Q225 Q223 Q211 W149 W135 X09-5840-1x W130 W158 R641 Ref. No. Address Ref. No. Address W142 R247 R245 Q405 W120 W127 W167...
- Page 6 KAC-8402/8452 PC BOARD (FOIL SIDE VIEW) 3 7 63 1515 0 PREAMPLIFIER UNIT X08-4200-10 (J76-0070-02) TP179 TP177 FAN+B +15V TP176 A-ISO-GND-1 A-ISO GND-2 TP180 B-ISO-GND-2 LOGO-LED B-ISO-GND-1 R601 TP175 TP187 AMP-AL ISO-AL AMP-AR W131 MONO R224 C229 200mV W124 C210...
- Page 7 KAC-8402/8452 3 7 63 1515 0 (X09-5840-xx) (A/2) +15V +15V 15.6V D101 TP23 TP63 C103 (2/4) TP66 (1/4) R109 R101 10u50 R170 C115 10u50 POWER C217 R107 R125 TP64 Q201 Q203 R201 C201 TP69 TP65 R111 C131 100P 10u50 C100...
- Page 8 KAC-8402/8452 3 7 63 1515 0 2SD2012-F Q220,223,423,424 2SC4468NF D1,2 2SB1375-F Q222,225,425,426 2SA1695NF D3,4 Q3-8 2SK3662-F Q241,242,280,282,443,444,481,482,602,605, +15V Q9,12 2SC4097 606,610-613,616,618 2SC4081 Q10,11 2SA1577 Q603,614,615,617 2SA1576A D7-9,152,203-206,2 R251 R233 35.5V Q13,14,619 DTA114EUA Q604 2SB1241 458,462,463,601- Q201-204,209,210,217,218,401-404,409, Q608,620,625-628 DTC114EUA Q219 410,417,418,621-624...
- Page 9 TP14 tomer. -15V -15V TP15 u163 TP16 • DC voltages are as measured with a high imped- LOGO-LED TP17 ance voltmeter. Values may vary slightly due to D-GND variations between individual instruments or/and units. -15V KAC-8402/8452 (1/2) X09-5840-1x A/2 (3/3)
- Page 10 KAC-8402/8452 3 7 63 1515 0 (X08-4200-10) +15V 15.0V TP265 (2/2) LPF, G10DB 18dB/oct, F=-VRcont B-CH R205 4.3K TP269 ST/MONO 15.0V (2/2) C209 R219 R227 2.2u50 TP267 C205 1.1K 4.3K 0.22 B.B.F C210 C206 2.2u50 0.22 R220 1.1K TP266 (1/2) B.B.
- Page 11 • DC voltages are as measured with a high (2/2) C118 impedance voltmeter. Values may vary 10u50 slightly due to variations between indi- vidual instruments or/and units. -15.0V R130 C112 TP255 (2/2) 10u50 -15.0V C124 PHASE INVERTER 150P -15V u163 +15V KAC-8402/8452 (2/2) X08-4200-10 (2/2)
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Page 12: Exploded View
KAC-8402/8452 EXPLODED VIEW 3 7 63 1515 0 M6x10 : N07-0003-08 M4x9 : N09-4214-08 φ3x12 : N09-6216-05 φ4x8 : N09-6218-05 M4x8 : N09-6287-05 φ3x10 : N80-3010-43 φ2x6 : N82-2006-48 φ3x8 : N89-3008-48 φ3x10 : N09-6217-05 φ3x6 : N83-3006-43 φ3x8 : N89-3008-43... -
Page 13: Parts List
0.22UF R258,259 RK73GB2A223J CHIP R J 1/10W C207,208 CK73GB1H103K CHIP C 0.010UF K R601 RK73EB2E821J CHIP R J 1/4W K : KAC-8452 K1 : KAC-8402 (North America) Indicates safety critical components. E1 : KAC-8452 (Europe) M1 : KAC-8452 (Other Areas) - Page 14 CHIP C 1000PF C609,610 CK73GB1H103K CHIP C 0.010UF K C131,132 CC73GCH1H101J CHIP C 100PF C611,612 CD04BJ1H100M ELECTRO 10UF 50WV K : KAC-8452 K1 : KAC-8402 (North America) Indicates safety critical components. E1 : KAC-8452 (Europe) M1 : KAC-8452 (Other Areas)
- Page 15 1.0K J 1/8W R171 RD14BB2C8R2J J 1/6W R413,414 RK73FB2B433J CHIP R J 1/8W R416-418 RK73FB2B151J CHIP R J 1/8W K : KAC-8452 K1 : KAC-8402 (North America) Indicates safety critical components. E1 : KAC-8452 (Europe) M1 : KAC-8452 (Other Areas)
- Page 16 R636 RK73GB2A222J CHIP R 2.2K J 1/10W D152 1SS133 DIODE R637 RK73GB2A103J CHIP R J 1/10W D203-206 1SS133 DIODE K : KAC-8452 K1 : KAC-8402 (North America) Indicates safety critical components. E1 : KAC-8452 (Europe) M1 : KAC-8452 (Other Areas)
- Page 17 Q215,216 2SC1845-A(F,E) TRANSISTOR Q217,218 2SA992-A(F,E) TRANSISTOR u163 Q219 2SC1627A-F TRANSISTOR Q220 2SC4468NF TRANSISTOR Q221 2SA817A-F TRANSISTOR Q222 2SA1695NF TRANSISTOR K : KAC-8452 K1 : KAC-8402 (North America) Indicates safety critical components. E1 : KAC-8452 (Europe) M1 : KAC-8452 (Other Areas)
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Page 18: Specifications
Weight ................5.8kg Normal (4Ω) (20Hz~20kHz, 0.08% THD) KAC-8452 ............70W x 4 KAC-8402 ............60W x 4 KENWOOD follows a policy of continuous advancements Normal (4Ω) (DIN : 45324, +B=14.4V) in development. For this reason specifications may be changed without notice.