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Kenwood kac-X1R Service Manual

Power amplifier
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See also: Training Manual , Instruction Manual
POWER AMPLIFIER
KAC-PS1D/X1R

SERVICE MANUAL

KAC-PS1D
KAC-X1R
Fuse (25A)
(F52-0014-05)
KAC-PS1D only
Remote control
(X16-6000-10)
KCA-WR10
Dressing Panel
(A21-6576-01) : KAC-X1R
(A21-6577-01) : KAC-PS1D
Modular cable
Mouting hardware
(E30-6240-15)
(J22-0301-14)
6m
Screw set
(N99-1795-05)
© 2007-1 PRINTED IN JAPAN
B53-0490-00 ( N ) 820
KAC-PS1D
KAC-X1R
Screw set
(N99-1766-05)
This product uses Lead Free solder.

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Summary of Contents for Kenwood kac-X1R

  • Page 1: Service Manual

    POWER AMPLIFIER KAC-PS1D/X1R SERVICE MANUAL © 2007-1 PRINTED IN JAPAN B53-0490-00 ( N ) 820 KAC-PS1D KAC-PS1D KAC-X1R Dressing Panel KAC-X1R (A21-6576-01) : KAC-X1R (A21-6577-01) : KAC-PS1D Fuse (25A) (F52-0014-05) KAC-PS1D only Remote control Modular cable Mouting hardware Screw set (X16-6000-10)

  • Page 2: Block Diagram

    KAC-PS1D/X1R BLOCK DIAGRAM (X09-856) (X08-431) SENS. VOL L.P.F SEL. L.P.F IC10,11 B.R.F IC55-57 (400Hz) B.R.F ISO-AMP SEL. BASS L/R MIX -6dB BOOST IC10,11 L.P.F -12dB ISO-AMP FREQ FREQ (40-200Hz) (40-200Hz) LINE OUT SEL. IC24 Q101,102,131 MUTE I.N.V I.S.F LIMIT I.N.V I.S.F FREQ SEL.

  • Page 3: Components Description

    KAC-PS1D/X1R COMPONENTS DESCRIPTION AUDIO UNIT (X09-8560-10) Ref. No. Application / Function Operation / Condition / Compatibility µ-com Overall control. DC/DC converter driver Generates the gate waveform for switching. Compares the analog signal with the triangular wave and generates the PWM waveform for IC5 (2/2) Comparator the minus output-side amplifier of the BTL.
  • Page 4 KAC-PS1D/X1R COMPONENTS DESCRIPTION Ref. No. Application / Function Operation / Condition / Compatibility Places the amplifier in the ON condition by sending “L” to pin 1 of the µ-com when the Pcon Pcon Switch terminal becomes “H” while the battery voltage is in the normal range. Turns ON/OFF DD converter gate drive pulse in response to the output from pin 8 Q10,11 DD converter gate control...

  • Page 5: Microcomputer's Terminal Description

    KAC-PS1D/X1R COMPONENTS DESCRIPTION PREAMPLIFIER UNIT (X08-4310-10) Ref. No. Application / Function Operation / Condition / Compatibility IC1 (1/2) Signal amplification Mixes Lch and Rch to make Mono signal. IC1 (2/2) Signal amplification Buffer to send the signal that comes through LPF and Bass Boost to the Line Out. Frequency fixed LPF LPF fixed at 400Hz.
  • Page 6 KAC-PS1D/X1R MICROCOMPUTER’S TERMINAL DESCRIPTION Truth Value Pin No. Pin Name Application Processing Operation Description Table ROTARY_CCW Encoder pulse input Detects pulse width 36~38 Not used Output L fixed REF5V_OUT Supplies to AVREF (pin 47) Output H fixed 40,41 Not used Output L fixed VFD_INH Panel VFD driver INH...

  • Page 7: Test Mode

    KAC-PS1D/X1R TEST MODE How to enter the test mode and how to clear the test mode Items in the test mode and test operations • How to enter • INFORMATION display (Display of conditions) In the backup connection condition (when the battery is being In the test mode, the following items can be checked in addition connected), turn ON the P_CON while keep pushing the rotary to the normal INFORMATION display.

  • Page 8: Circuit Description

    KAC-PS1D/X1R CIRCUIT DESCRIPTION The output from pin 7 of IC22 is rectified through the band Short detection circuit between SP+ and SP- terminals pass filter whose center frequency is about 3kHz. If the SP+ and SP- terminals are shorted in the vicinity of the The DC voltage generated after the rectification is applied to terminals, the self oscillation occurs in the D-class amplifier.
  • Page 9 KAC-PS1D/X1R CIRCUIT DESCRIPTION Pulse shaping circuit D140 When either output from the ASO detec- TP106 tion (IC6-pin 1), ground fault detection D170 R290 PULSE SHAPING (IC7-pin 7) or short detection (IC6-pin 7) CIRCUIT TP383 is “L”, the pulse with a constant width of TP387 about 10msec is generated even if the IC17...

  • Page 10: Pc Board (Component Side View)

    KAC-PS1D/X1R PC BOARD (COMPONENT SIDE VIEW) AUDIO UNIT X09-8560-10 (J76-0345-01) Q159 R179 R181 R160 Q158 Q193 Q156 R180 R176 R167 Q191 R196 Q163 R192 R805 Q164 Q171 Q187 Q170 R194 R307 R823 R309 R310 C182 Q174 Q177 R223 R213 C178 C172 R226 R224...
  • Page 11 KAC-PS1D/X1R X09-8560-10 Ref. No. Address Ref. No. Address C509 R158 D121 R153 R162 R163 R170 R156 IC15 R157 D151 Q150 IC20 R154 R155 R142 R150 Q151 C130 R145 C126 D122 D123 R804 D116 IC21 R146 R148 R164 IC14 IC10 R803 IC16 R206 IC11...

  • Page 12: Pc Board (Foil Side View)

    KAC-PS1D/X1R PC BOARD (FOIL SIDE VIEW) AUDIO UNIT X09-8560-10 (J76-0345-01) TP326 TP314 TP332 TP328 TP256 TP354 TP56...
  • Page 13 KAC-PS1D/X1R Refer to the schematic diagram for the values of resistors and capacitors.
  • Page 14 KAC-PS1D/X1R PC BOARD (COMPONENT SIDE VIEW) PREAMPLIFIER UNIT X08-4310-10 A/2 (J76-0350-01) C133 40-200 X14 B/2 Refer to the schematic diagram for the values of resistors and capacitors.
  • Page 15 KAC-PS1D/X1R PC BOARD (FOIL SIDE VIEW) PREAMPLIFIER UNIT X08-4310-10 A/2 (J76-0350-01) TP72 TP75 C115 R814 C802 C801 R128 R115 R130 R116 C112 TP173 R811 R114 R809 TP174 TP70 R113 C804 C805 TP50 TP47 TP49 TP41 R104 R108 C102 C100 R107 R163 R105 R141...
  • Page 16 KAC-PS1D/X1R (X09-8560-10) R801 +15V R831 C821 C823 -15V R832 C822 C824 TP12 C801 C802 10u50 10u50 R802 D101 IC10 (1/2) IC11 R101 C103 R105 TP13 33u50 4.7K TP16 (1/2) TP20 R111 C119 33u50 R907 R115 R109 10K C109 C107 47P TP18 R117 10K 100P...
  • Page 17 KAC-PS1D/X1R SW5V +15V-1 +15V-1 R801 10 C821 C823 7P TP54 R145 R804 TP75 +15V Q151 C822 C824 7P TP53 TP55 C126 R146 63.5V R802 10 C504 330P 6.8K TP57 D114 TP381 0.01 TP52 IC14 TP74 R149 C127 6.2K Q150 R907 0.01 IC20 C503...
  • Page 18 KAC-PS1D/X1R +15V-1 RESONA +15V -15V D140 IC22 (2/2) C198 R339 TP106 3300P C200 0.01 D170 R290 C199 R340 3300P TP387 R342 47K TP383 D174 D175 TP103 IC17 (2/4) IC17(1/4) R826 -15V C192 R296 R827 TP104 R272 DC OFFSET DET. 0.047 +15V IC17(3/4) R292 10K...
  • Page 19 KAC-PS1D/X1R RESONANCE DET. TP30 R345 2.2K TP31 TP32 2SA992-A TP27 IC22(1/2) C200 R346 R347 0.01 C201 C202 2SC1845-A D176 TP33 0.033 0.033 2SC2235-F TP174 R826 C501 C502 0.01 0.01 R827 TP172 IC19(1/2) R334 TP171 R220 0.2V 2SA1576A R333 R335 330 C152 10u50 600W/...
  • Page 20 KAC-PS1D/X1R (X08-4310-10) (A/2) IC1-4,8 : RC4580IDR -15V +15V IC5-7 : BA4560RF IC11 LC75756E D100 1SS355 IC1(1/2) (1/2) D601 : B30-1743-05 R119 R109 1K TP38 SIGNAL LINE R110 1K C100 R120 GND LINE 0.047 B LINE 10K(A) TP172 B LINE TP169 R104 R105 IC3(2/2)
  • Page 21 KAC-PS1D/X1R -15V +15V L.P.F SEL 400/40-200 CAUTION : For continued safety, replace safety critical C804 TP38 0.01 components only with manufacturer’s recommended parts C805 C100 0.01 (refer to parts list). L.P.F(400) C102 0.047 (2/2) 0.047 Indicates safety critical components. To reduce the TP48 IC2(1/2) TP51...

  • Page 22: Exploded View

    KAC-PS1D/X1R EXPLODED VIEW ONLY USED KAC-PS1D (X08-) (B/2) (X16-6000-10) φ3x8 : N09-5524-05 φ3x12 : N09-6216-05 M4x8 : N09-6433-05 φ2x8 : N80-2008-43 φ3x10 : N80-3010-43 φ2x6 : N82-2006-48 φ3x12 : N83-3012-48 (X08-4310-10) φ3x8 (A/2) : N89-3008-48 φ3x8 : N09-6135-05 (X08) φ3x12 : N09-6217-05 φ3x10 : N09-6447-05...

  • Page 23: Parts List

    CHIP C 100PF R137 RK73GB2A103J CHIP R J 1/10W R138 RK73GB2A222J CHIP R 2.2K J 1/10W C112 CK73FB1E154K CHIP C 0.15UF R139 RK73GB2A512J CHIP R 5.1K J 1/10W E1 : KAC-PS1D (Europe) K : KAC-X1R (North America) Indicates safety critical components.
  • Page 24 16WV C178 CK73GB1H473K CHIP C 0.047UF K C19,20 C91-2293-05 MF-C 1000PF 200WV C181,182 C91-2290-05 MF-C 4.7UF 250WV CD04BJ1E470M ELECTRO 47UF 25WV C183 CK73GB1H103K CHIP C 0.010UF K E1 : KAC-PS1D (Europe) K : KAC-X1R (North America) Indicates safety critical components.
  • Page 25 RD14DB2H100J SMALL-RD 10 J 1/2W E70-0847-05 SCREW TERMINAL BOARD RK73GB2A113J CHIP R J 1/10W E58-0966-15 RECTANGULAR RECEPTACLE RK73GB2A391J CHIP R J 1/10W RD14DB2H100J SMALL-RD 10 J 1/2W E1 : KAC-PS1D (Europe) K : KAC-X1R (North America) Indicates safety critical components.
  • Page 26 J 1/10W R167 RK73GB2A112J CHIP R 1.1K J 1/10W R248 RK73GB2A123J CHIP R J 1/10W R168 RK73GB2A681J CHIP R J 1/10W R253 RK73GB2A153J CHIP R J 1/10W E1 : KAC-PS1D (Europe) K : KAC-X1R (North America) Indicates safety critical components.
  • Page 27 R348 RK73GB2A103J CHIP R J 1/10W FCH20A15 DIODE R501,502 RK73GB2A243J CHIP R J 1/10W FRH20A15 DIODE R503 RK73GB2A472J CHIP R 4.7K J 1/10W D14,15 UDZS16B ZENER DIODE E1 : KAC-PS1D (Europe) K : KAC-X1R (North America) Indicates safety critical components.
  • Page 28 STP60NF06FP SWITCH UNIT (REMOTE CON.) (X16-6000-10) Q22-24 STP60NF06FP A02-2738-02 PLASTIC CABINET 2SC1845-A(F,E) TRANSISTOR 2SD2012-F TRANSISTOR B30-1764-05 LED (3216 RED) STP60NF06FP 2SB1375-F TRANSISTOR CK73GB1H103K CHIP C 0.010UF K E1 : KAC-PS1D (Europe) K : KAC-X1R (North America) Indicates safety critical components.
  • Page 29 PAN HEAD TAPTITE SCREW RK73GB2A153J CHIP R J 1/10W E1 RK73GB2A822J CHIP R 8.2K J 1/10W E1 RK73GB2A471J CHIP R J 1/10W E1 VR1,2 R31-0243-05 VARIABLE RESISTOR E1 : KAC-PS1D (Europe) K : KAC-X1R (North America) Indicates safety critical components.

  • Page 30: Specifications

    Weight ............3.8kg (8.38 lbs) (1Ω) ..............≥1000W x 1 Frequency Response (+0, -3dB) ......5Hz~400Hz 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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