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© 2005-3 PRINTED IN JAPAN
B53-0248-00 (N) 1708

POWER AMPLIFIER

KAC-7202/7252

SERVICE MANUAL

REMOTE CONTROL

Stereo Bridgeable

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Amplifie

65

75

85

95

10

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50

17

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15

11

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18

40

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Accessories
(W01-1606-05)

KAC-7252

(E type,M type)

Dressing Panel
(A21-4463-02)
     : KAC-7252
(A21-4525-02)
     : KAC-7202

Screw set
(N99-1759-05)

Screw set
(N99-1766-05)

Connecting cord assy
(E30-6145-05)

Modular cable
(E30-6240-15)

Mouting hardware
(J22-0301-14)

Remote control

CONTROL SYSTEM

KAC-7202

KAC-7202

KAC-7252

 (K type)

Dressing Panel
(A21-4467-02)
     : KAC-7252(K type)
(A21-4468-02)
     : KAC-7202
(A21-4526-02)
     : KAC-7252(E type),
       KAC-7252(M type)

Except KAC-7202

6m

19cm

Fuse (40A)
(F52-0016-05)

Except KAC-7202

This product uses Lead Free solder.

Summary of Contents for KAC-7202

Page 1: ...sing Panel A21 4463 02 KAC 7252 A21 4525 02 KAC 7202 Screw set N99 1759 05 Screw set N99 1766 05 Connecting cord assy E30 6145 05 Modular cable E30 6240 15 Mouting hardware J22 0301 14 Remote control CONTROL SYSTEM KAC 7202 KAC 7202 KAC 7252 K type Dressing Panel A21 4467 02 KAC 7252 K type A21 4468 02 KAC 7202 A21 4526 02 KAC 7252 E type KAC 7252 M type Except KAC 7202 6m 19cm Fuse 40A F52 0016 0...

Page 2: ...er IC6 Temperature detection comparator IC7 8 For adjusting bass boost f IC9 For adjusting bass boost gain IC13 Bass boost phase shifter IC15 Bass boost mixing amplifier Q1 2 15V AVR Q3 8 DC DC converter FET Q9 12 DC DC converter FET driver Q13 14 For controlling DC DC converter FET driver Ref No Application Function Q101 Remote controller reference voltage Q201 204 Power amplifier initial step di...

Page 3: ... W31 C107 VR61 1 W1 C124 W2 C123 W3 C54 W21 W7 C158 W11 LOW PASS W24 W22 W16 W15 HI PASS VR152 1 4 6 3 5 2 VR101 W12 INPUT SENS W20 W18 W9 C108 W17 W13 C52 W23 5 6 1 4 VR4 3 2 5 6 1 4 3 2 W28 W27 W29 W210 W207 W212 W34 W33 1 10 5 6 50Hz W206 W205 200Hz W209 W211 W208 200Hz 50Hz W39 W35 1 4 3 6 W38 HPF 200 V 5V OFF LPF MONO W37 W40 ST 1 13 14 VR1 L ISO L RCA G ISO R BB L 15V BB R LOGO LED FAN B D G...

Page 4: ...W366 R149 W334 C128 R137 R668 R142 R136 R134 C127 W361 W338 R138 R264 R280 R287 W369 R260 W352 W390 W385 R240 C220 R230 R290 C222 R232 W371 TH202 W327 W328 W329 R201 R285 C206 C228 C205 C227 R289 R249 R207 W3 W31 W357 C219 R625 R229 R120 C102 C101 C157 C111 W389 R105 R116 R117 C113 W388 C114 W387 R121 C165 R181 C121 C158 C122 C112 W392 R106 C139 R158 R160 R166 C138 R157 R159 R165 R141 W346 R630 W3...

Page 5: ... S G D S G D B E B E B E B E B E B E B E D9 D7 D8 D203 D251 D260 D616 Q205 Q207 Q209 Q215 Q3 Q4 Q5 Q6 Q7 Q8 Q608 D611 J3 D1 D2 P1 1 Q223 Q227 WH1 D5 D6 06 Q12 Q9 Q14 Q13 D10 Q10 Q620 D609 D617 Q11 IC6 IC5 X09 B 2 SPEAKER OUTPUT POWER IN DC voltmeter Lch 2 5mV X09 5830 1x Ref No Address IC1 6H IC5 6N IC6 5K IC7 5I IC8 5I IC9 5H IC12 6G IC13 5H IC15 5H IC16 6G Q1 2H Q2 2H Q3 4N Q4 3N Q5 4N Q6 3N Q7 ...

Page 6: ...R659 0 1 C616 47K R664 47K R660 56K R658 100u6 3 C606 12K R617 R620 47K R621 47K 100u6 3 C608 2 2K R634 1u50 C611 10u50 C612 47u25 C3 47u25 C5 C2 47u25 C4 13K R4 100 R233 470 R261 2W 2W 1000P C219 1000P C221 2 2K R249 4 7 R173 4 7 R343 10u50 C215 100 R235 C209 12P 12K R631 12K R632 C607 R635 C609 47K R630 2 4 3 1 8 6 5 7 1K R106 14 13 12 11 10 9 8 1 2 3 4 5 6 7 GND VCC 3 1 5 9 7 4 2 6 10 8 0 01 C1...

Page 7: ...7 100K R643 47u25 C132 10u50 10u50 C126 K 8 10u50 C604 10u50 C605 1K R627 4 7K R607 33K R609 100 R603 10K R604 30K R610 3 6K R612 3 6K R611 3 9K R616 L1 18uH L2 18uH 1 2W 10u50 C603 1 2W R29 10 R613 1 5K R614 3 3K 47K R602 10u50 C618 10u50 C602 33u25 C601 10K R606 C10 3900u16 C11 4 7K R9 4 7K R10 10 R11 56 R14 56 R13 47u25 C15 330K R20 R18 27K 2 2u50 C13 R22 91K 10K R23 10u50 C16 10K R19 R21 10K 1...

Page 8: ...5K R152 15K R153 0 1 C152 3 3K R154 0 15 C153 2 2K R156 47K R157 15K R155 0 022 C154 7 5K R158 10K R159 0 1 C155 0 15 C156 2 2K R160 220K R161 10u16 C158 0 01 C112 0 01 C113 6 2K R121 10K R122 4 3K R128 0 01 C53 10u50 C54 3K R129 2 2K R131 3K R130 0 01 C51 10u50 C52 10K R133 39K R137 0 1 C109 39K R138 R136 0 01 C60 0 01 C59 39K R142 39K R141 0 1 C115 22K R147 10u50 C123 16K R146 0 1 C116 10u50 C12...

Page 9: ...003 08 N09 4214 08 N09 6216 05 N09 6218 05 N09 6287 05 N80 2008 43 N80 3010 43 N82 2006 48 N89 3008 48 N89 3016 48 N09 6217 05 N83 3006 43 N89 3008 43 X08 419 B 2 13 25 28 2 7 22 17 9 3 27 29 14 1 10 19 724 731 738 20 F1 PA1 736 737 FC1 724 8 26 26 731 PA2 F Ex2 Cx3 Hx3 Jx2 Jx2 Cx3 Lx5 Lx9 Lx6 Gx2 Gx2 Jx3 Jx2 Jx2 Jx3 Jx3 G J J M D G Nx2 Nx3 Cx4 Cx2 J N B A N 732 704 735 739 N N J Jx2 K K J Ex2 Ex2...

Page 10: ...EW H 2B N82 2006 48 BINDING HEAD TAPTITE SCREW J 3B N89 3008 48 BINDING HEAD TAPTITE SCREW K 2B N89 3016 48 BINDING HEAD TAPTITE SCREW 29 1A W01 1606 05 ACCESSORIES C51 CK73GB1H103K CHIP C 0 010UF K C52 CD04BJ1H100M ELECTRO 10UF 50WV C53 CK73GB1H103K CHIP C 0 010UF K C54 CD04BJ1H100M ELECTRO 10UF 50WV C57 60 CK73GB1H103K CHIP C 0 010UF K K1 C103 104 CK73GB1C104K CHIP C 0 10UF K C105 106 CK73FB1C22...

Page 11: ... CK73GB1H102K CHIP C 1000PF K C103 CK73FB1H104K CHIP C 0 10UF K C104 105 CD04BJ1H100M ELECTRO 10UF 50WV C108 109 CD04BJ1H100M ELECTRO 10UF 50WV C110 CQ92FM1H102J MYLAR 1000PF J C111 112 CC73GCH1H150J CHIP C 15PF J C113 116 CC73GCH1H101J CHIP C 100PF J C117 118 CD04BJ1V220M ELECTRO 22UF 35WV C119 120 CC73GCH1H151J CHIP C 150PF J C121 122 CK73GB1H103K CHIP C 0 010UF K C123 126 CD04BJ1H100M ELECTRO 1...

Page 12: ...1M1 R149 150 RK73GB2A163J CHIP R 16K J 1 10W KE1M1 R151 152 RK73GB2A102J CHIP R 1 0K J 1 10W KE1M1 R153 RK73GB2A471J CHIP R 470 J 1 10W KE1M1 R154 RK73GB2A272J CHIP R 2 7K J 1 10W KE1M1 R155 R92 0205 05 METAL PLATE 0 1 K 2W R156 RK73GB2A103J CHIP R 10K J 1 10W KE1M1 R157 158 RK73GB2A331J CHIP R 330 J 1 10W KE1M1 R159 160 RK73GB2A242J CHIP R 2 4K J 1 10W KE1M1 R161 164 RK73GB2A223J CHIP R 22K J 1 1...

Page 13: ...73GB2A682J CHIP R 6 8K J 1 10W R667 668 RK73GB2A470J CHIP R 47 J 1 10W VR1 2 R32 0294 05 SEMI FIXED VARIABLE RESISTOR W301 R92 2053 05 CHIP R 0 OHM J 1 8W W302 307 R92 1252 05 CHIP R 0 OHM J 1 16W W308 R92 2053 05 CHIP R 0 OHM J 1 8W W309 311 R92 1252 05 CHIP R 0 OHM J 1 16W W312 313 R92 2053 05 CHIP R 0 OHM J 1 8W W314 R92 1252 05 CHIP R 0 OHM J 1 16W W315 R92 2053 05 CHIP R 0 OHM J 1 8W W317 322...

Page 14: ... 204 2SA992 A F E TRANSISTOR Q205 208 2SC3478AA L K TRANSISTOR Q209 210 2SA1376AA L K TRANSISTOR Q211 2SC3419 Y F TRANSISTOR Q213 2SC3419 Y F TRANSISTOR Q215 216 2SC1845 A F E TRANSISTOR Q217 218 2SA992 A F E TRANSISTOR Q220 2SC4467NF TRANSISTOR Q222 2SA1694NF TRANSISTOR Q223 224 2SC4467NF TRANSISTOR Q225 226 2SA1694NF TRANSISTOR Q227 2SC4467NF TRANSISTOR Q229 2SA1694NF TRANSISTOR Q241 242 2SC4081...

Page 15: ...0 330 470 750 Tolerance More than 10pF Code C D G J K M X Z P No code 0 25 0 5 2 5 10 20 40 80 100 More than 10µF 10 50 20 20 0 Less than 4 7µF 10 75 Voltage rating 2nd word A B C D E F G H J K V 1st word 0 1 0 1 25 1 6 2 0 2 5 3 15 4 0 5 0 6 3 8 0 1 10 12 5 16 20 25 31 5 40 50 63 80 35 2 100 125 160 200 250 315 400 500 630 800 3 1000 1250 1600 2000 2500 2150 4000 5000 6300 8000 CHIP CAPACITORS EX...

Page 16: ...ut Impedance 10kΩ Frequency Response 0 3dB 5Hz 50kHz Signal to Noise Ratio 100dB Low Pass Filter Frequency 24dB oct 50 200Hz variable High Pass Filter Frequency 12dB oct 50 200Hz variable Bass Boost Circuit 0 18dB variable Bass Boost Frequency KAC 7252 40 100Hz variable KAC 7202 40Hz General Operating Voltage 14 4V 11 16V allowable Current Consumption 40A Installation Size W x H x D 380 x 61 x 286...

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