Kenwood KAC-X10D Service Manual
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Kenwood KAC-X10D Service Manual

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See also: Training Manual , Instruction Manual
POWER AMPLIFIER
KAC-X10D

SERVICE MANUAL

K type only
Fuse (40A)
(F52-0016-05)
M type only
Remote control
(X16-6000-10)
KCA-WR10
Modular cable
(E30-6240-15)
6m
Accessories
(W01-1606-05)
© 2006-12 PRINTED IN JAPAN
B53-0487-00 ( N ) 719
Mouting hardware
Screw set
(J22-0301-14)
(N99-1766-05)
Screw set
(N99-1794-05)
This product uses Lead Free solder.
Dressing Panel
(A21-6568-01) : K type
(A21-6569-01) : M type

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Summary of Contents for Kenwood KAC-X10D

  • Page 1: Service Manual

    POWER AMPLIFIER KAC-X10D SERVICE MANUAL © 2006-12 PRINTED IN JAPAN B53-0487-00 ( N ) 719 Dressing Panel (A21-6568-01) : K type (A21-6569-01) : M type K type only Fuse (40A) (F52-0016-05) M type only Remote control Modular cable Mouting hardware...

  • Page 2: Block Diagram

    KAC-X10D BLOCK DIAGRAM SENS. ISO-AMP IC4 (1/2) IC4 (2/2) IC5 (2/2),6,7 I.F.S BASS L/R MIX L.P.F 15Hz I.S.F BOOST SEL. 25Hz ISO-AMP FREQ (40-200Hz) Q3,4 IC38 LINE OUT MUTE SEL. LIMIT IC10 (2/2) IC11 IC14,16 Q6,7 Q8-11 Q701-704 SUMMING DEAD...
  • Page 3 KAC-X10D COMPONENTS DESCRIPTION Ref. No. Application / Function Operation / Condition / Compatibility IC14~16 Dead time generating circuit It generates dead time not to penetrate the high-side and low-side PWM signal. IC17 NF circuit It applies negative return from output to D-class first phase.

  • Page 4: Circuit Description

    KAC-X10D CIRCUIT DESCRIPTION NF Circuit It applies NF from rear and front of LC filter. For BTL output, it receives each output by differential amplification and applies feedback to the first phase. POWER AMP OUTPUT + POWER AMP OUTPUT +...

  • Page 5: Detection Circuit

    KAC-X10D CIRCUIT DESCRIPTION Abnormal Detection Circuit It compares signal levels of the current detecting circuit and It detects also unbalance operation. output voltage rectification circuit with a comparator. If current Resonance detecting signals detected with the new circuit > voltage, the detecting circuit operates to stop D-class cir- description X10D_2 are also input to this circuit causing ab- cuit.

  • Page 6: Pc Board (Component Side View)

    KAC-X10D PC BOARD (COMPONENT SIDE VIEW) AUDIO UNIT X09-8590-10 (J76-0347-01) W105 W101 W102 W103 W104 Q703 Q704 Q706 Q705 Q708 Q707 R159 R158 R163 R162 C329 D320 D321 C330 D322 D323 C332 C832 C833 C346 C341 C342 C347 C305 C837...
  • Page 7 KAC-X10D X09-8590-10 Ref. No. Address Q319 W106 W107 Q322 Q338 C322 C323 Q320 Q321 Q701 Q702 Q339 R157 C324 C325 R156 Q303 Q313 D316 C321 C320 Q314 Q315 Q316 D317 Q317 Q318 Q319 Q313 Q320 C318 R347 Q321 D320 C319...

  • Page 8: Pc Board (Foil Side View)

    KAC-X10D PC BOARD (FOIL SIDE VIEW) AUDIO UNIT X09-8590-10 (J76-0347-01) R409 D319 D318 C307 C350 R351 R352 R813 R810 R812 R811 R430 R424 R355 R356 C333 R357 R354 R903 C905 R374 R138 R132 -15V +15V R143 R126 R376 R125 R123...
  • Page 9 KAC-X10D X09-8590-10 Ref. No. Address Ref. No. Address R152 R153 R150 R139 R155 R120 R151 R121 R119 R149 R118 R112 R143 R111 5V R114 R142 R140 Q301 IC16 IC14 IC15 Q302 R116 R115 R117 IC10 Q304 R437 IC11 Q305 IC17...
  • Page 10 KAC-X10D (X09-8590-10) +15V +15V -15V C822 10u50 (1/2) (2/2) TP51 TP57 10u50 TP49 TP38 TP41 TP43 TP45 R9 10K TP48 10u50 4.7K TP54 C7 47P R17 10K TP66 TP62 R15 10K C13 100P TP55 TP40 2.4K R45 5.6K 4.7K INPUT R L...
  • Page 11 KAC-X10D +15V +15V +15V -15V -15V -15V Q323 TP62 TP411 TP384 THERMAL R371 TP389 R362 150K 150K TP382 TP383 TP390 R372 R361 R368 R365 4 (1/2) IC37 TP61 TP64 (2/2) D-AMP TP140 TP385 TP386 TP388 (1/2) TP387 IC37 ON/OFF TP391...
  • Page 12 KAC-X10D TP358 37.4V 15.2V TP364 TP362 TP342 Q319 Q309 DC/DC Q315 Q314 Q313 D316 Q323 Q320 C314 TP337 3300u16 R811 Q306 Q310 C315 R329 3300u16 4.7K Q311 C316 3300u16 R812 Q307 Q324 TP375 C317 3300u16 R355 Q308 Q321 Q318 Q317...
  • Page 13 KAC-X10D IC36 TP330 2SA992-A 2SC1845-A TP327 IN1+ IN2+ R318 R320 2SC2235-F IN2- IN1- TP332 FBACK TP333 OUTCTRL C309 1000P TP325 R321 20K C310 47u25 DC/DC CONT. 2SA1576A 14.4V 2SB1375-F 2SD2012-F FUSE BATT P-CON SPEAKER OUTPUT SIGNAL LINE GND LINE B LINE...

  • Page 14: Exploded View

    KAC-X10D EXPLODED VIEW ONLY USED M TYPE (X16-6000-10) M6,AU : N07-0003-08 M4,AU : N09-4214-08 φ3x8 : N09-5524-05 φ2.6x13 : N09-6365-05 M4x12 : N09-6432-05 φ3x10 : N80-3010-43 φ2x5 : N82-2005-43 φ3x8 : N89-3008-48 φ3x8 : N09-6135-05 φ3x10 : N09-6447-05 φ2x8 : N80-2008-43 (X09-859) Parts with the exploded numbers larger than 700 are not supplied.

  • Page 15: Parts List

    50WV C330 CD04BJ1E470M ELECTRO 47UF 25WV CK73GB1H473K CHIP C 0.047UF K C331 CK73GB1H103K CHIP C 0.010UF K CK73GB1H104K CHIP C 0.10UF C332 CD04BJ1H100M ELECTRO 10UF 50WV K : KAC-X10D (North America) M1 : KAC-X10D (Other Areas) Indicates safety critical components.
  • Page 16 J 1/10W RK73GB2A302J CHIP R 3.0K J 1/10W R100 RK73GB2A103J CHIP R J 1/10W RK73GB2A392J CHIP R 3.9K J 1/10W R101 RK73GB2A153J CHIP R J 1/10W K : KAC-X10D (North America) M1 : KAC-X10D (Other Areas) Indicates safety critical components.
  • Page 17 R305 RK73GB2A103J CHIP R J 1/10W R373 RK73GB2A223J CHIP R J 1/10W R306 RK73GB2A472J CHIP R 4.7K J 1/10W R374,375 RK73GB2A332J CHIP R 3.3K J 1/10W K : KAC-X10D (North America) M1 : KAC-X10D (Other Areas) Indicates safety critical components.
  • Page 18 CHIP R J 1/10W D328 LM1MA142WA-G DIODE R440 RK73GB2A223J CHIP R J 1/10W D329-332 1SS355 DIODE R441 RK73GB2A103J CHIP R J 1/10W D333 UDZS5.1B ZENER DIODE K : KAC-X10D (North America) M1 : KAC-X10D (Other Areas) Indicates safety critical components.
  • Page 19 2SC4081 TRANSISTOR Q307,308 DTA114EUA DIGITAL TRANSISTOR Q309 2SC4097 TRANSISTOR Q310,311 2SB1427 TRANSISTOR Q312 2SC4097 TRANSISTOR Q313-318 STP60NF06FP Q319 2SD2012-F TRANSISTOR Q320 2SC1845-A(F,E) TRANSISTOR Q321 2SA992-A(F,E) TRANSISTOR K : KAC-X10D (North America) M1 : KAC-X10D (Other Areas) Indicates safety critical components.

  • Page 20: Specifications

    (1Ω) ..............≥600W x 1 Weight ............3.5kg (7.72 lbs) Frequency Response (+0, -3dB) ......5Hz~200Hz Sensitivity (rated output) KENWOOD follows a policy of continuous advancements MAX ................0.2V in development. For this reason specifications may be MIN ................5.0V changed without notice.

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