KEF PSW-2010 Service manual

CONTENTS

PARTS LIST:

PRE AMPLIFIER BOARD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3

POWER AMPLIFIER BOARD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-5

VOLTAGE SELECTOR BOARD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

PRE AMP AND POWER AMP ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

10” SPEAKER ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

POWER CORD CABLE ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

BLOCK DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

SCHEMATIC DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-10

PCB LAYOUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11-12

Issue 1

Jun.28, 2003

SERVICE MANUAL

POWERED SUBWOOFER

2

POWERED SUBWOOFER

PARTS LIST

PRE AMP SECTION

PRINTED CIRCUIT BOARD ASSEMBLY

QTY PART NO DESCRIPTION LOCATION

12 150F-101K-5-IEA CC 50V 100P 10% RL 5X3 C1,2,3,6,7,8,9,10,20,33,36,81
3 150F-104M-N-FD CC 50V 0.1U 20% RLF C25,37,38
1 153H-104K-5-QUA CM 100V 0.1U 10% RL 9x11 CENTRALAB C42
2 153I-224J-9-NL CM 63V 0.22U 5% RB 7.5x 6.5 C26,41
5 153I-683K-9-NL CM 63V 0.068U 10% RB 7. 5x6.5 C27,34,35, 39,40
4 153I-684K-5-IN CM 63V 0.68U 10% RL 5X7.5 C43,44,45,46
4 153I-823J-9-NL CM 63V 0.082U 5% RB 7.5X6.5 C14,15,17, 18
1 157D-107M-5-KW CE 16V 100U 20% RL 6x12 C23
2 157D-476M-5-IU CE 16V 47U 20% RL 5x11 C24,2A
1 157D-477M-5-OVK CE 16V 470U 20% RL 8X11.5 ELNA C22
1 157E-106M-5-IU CE 25V 10U 20% RL 5x11 C21
4 157F-225M-5-IU CE 50V 2.2U 20% RL 5x11 C11,13,16,19
4 4701-102J-2 RCF 1/8W 1K 5% AT R4,14,87,89
12 4701-103J-2 RCF 1/8W 10K 5% AT R2, 6, 9, 12, 16, 19, 23, 27, 28,

77, 78, 86
8 4701-104J-2 RCF 1/8W 100K 5% AT R65,66,69,70,140,141,142,143
3 4701-123J-2 RCF 1/8W 12K 5% AT R54,60,73
2 4701-125J-C RCF 1/8W 1.2M 5% ATS R75,80
2 4701-153J-2 RCF 1/8W 15K 5% AT R59,139
4 4701-163J-2 RCF 1/8W 16K 5% AT R57,58,62,64
4 4701-202J-2 RCF 1/8W 2K 5% AT R1,5,11,15
2 4701-203J-2 RCF 1/8W 20K 5% AT R10,20
4 4701-222J-2 RCF 1/8W 2.2K 5% AT R21,22,83,84
6 4701-223J-2 RCF 1/8W 22K 5% AT R3,7,13,17, 55,61
1 4701-225J-2 RCF 1/8W 2.2M 5% AT R81
1 4701-273J-2 RCF 1/8W 27K 5% AT R71
2 4701-303J-2 RCF 1/8W 30K 5% AT R8,18
1 4701-332J-2 RCF 1/8W 3.3K 5% AT R25
1 4701-333J-2 RCF 1/8W 33K 5% AT R72
1 4701-334J-2 RCF 1/8W 330K 5% AT R26
1 4701-392J-2 RCF 1/8W 3.9K 5% AT R24
2 4701-471J-2 RCF 1/8W 470R 5% AT R79,90
2 4701-472J-2 RCF 1/8W 4.7K 5% AT R85,88
1 4701-563J-2 RCF 1/8W 56K 5% AT R76
1 4701-683J-2 RCF 1/8W 68K 5% AT R82
3 4701-752J-2 RCF 1/8W 7.5K 5% AT R56,63,68

3

POWERED SUBWOOFER

PARTS LIST

PRE AMP SECTION

PRINTED CIRCUIT BOARD ASSEMBLY

(CONTINUED)

QTY PART NO DESCRIPTION LOCATION

1 4701-753J-2 RCF 1/8W 75K 5% AT R74
1 4701-822J-2 RCF 1/8W 8.2K 5% AT R67
1 2101-9790-0 4RCA JACK HSP-204V-03 GP RCA1
10 3131-6140-0 IC BA4560 ROHM U1,2,3,4,5,6,7,8,9,15
1 3700-4536-RG L-115W EGW/209EGW RED/GR ELE-LED02 LED1
1 4750-5520-0 VR 20KAX1 VR16N20K15A20K L=15MM VR1
1 4751-0056-0

VR 50KBX2 VR16G20K15B50K L=15MM ALPHA

VR3
1 4751-0066-0 VR 100KBX4 10% ALPHA VR2
1 4837-3V36-2 DZ 1/2W +-5% 3.3V TEMIC AT Z1
2 4837-5V16-2 DZ 1/2W 5.1V "TEMIC" AT Z2,3
10 4840-8060-2 DIODE 1N4148 NS D1,2,3,4,5,6,7,8,9,20
3 4860-2250-5 TR 9012H MICRO Q3,4,7
4 4860-8720-5 TR 9013H SAMSUNG Q1,2,5,6
4 5200-3281-0-06 SW COMAX SK-22D01-SG6-T-NS-IK SW1,2,3,4
1 7010-2221-0 3 PIN SHIELD WIRE ASSY L=130MM CN1A
1 7010-2222-0 3 PIN FLAT CABLE ASSY L=100MM CN2A
2 7011-4570-0

AMP108U AWG26 180MM BRWN NALX2 1-51-274

CN5,6
1 7012-6517-0 CONN WIRE UL1007 #20 L=170MM 3PIN CN7
1 1725-653A-0000 PCB PRE PSW2500 D/S FR4 94V0 REV:B

POWER AMP SECTION

PRINTED CIRCUIT BOARD ASSEMBLY

QTY PART NO DESCRIPTION LOCATION

4 150F-101K-5-IEA CC 50V 100P 10% RL 5X3 C39,40,64,65
2 150F-104M-N-FD CC 50V 0.1U 20% RLF C53,54
1 150F-334M-N-JJA CC 50V 0.33U 20% RLF MO NO C36
1 150F-470K-5-GGA CC 50V 47P 10% RL MONO C38
2 150F-471K-5-IEA CC 50V 470P 10% RL 5x3 C32,33
2 150F-681J-5-OI CC 50V 680P 5% RL 8X5 C42,43
1 153H-102K-5-INA CM 100V 0.001U 10% RL 5x7.5 C37
5 153H-104K-5-QUA

CM 100V 0.1U 10% RL 9x11 CENTRALAB

C57,58,61,62,68
1 153I-105K-9-NL CM 63V 1U 10% RB 7.5x6. 5 C31

4

POWERED SUBWOOFER

PARTS LIST

POWER AMP SECTION

PRINTED CIRCUIT BOARD ASSEMBLY

(CONTINUED)

QTY PART NO DESCRIPTION LOCATION

1 153I-224K-9-NOA CM 63V 0.22U 10% RB 7.5X8 C47
2 157D-227M-5-KW CE 16V 220U 20% RL 6x12 C55,56
1 157D-476M-5-IU CE 16V 47U 20% RL 5x11 C50
2 157F-105M-5-IU CE 50V 1U 20% RL 5x11 C34,48
2 157F-225M-5-IU CE 50V 2.2U 20% RL 5x11 C41,66
1 157F-474M-5-IU CE 50V 0.47U 20% RL 5x11 C51
2 157I-107M-5-SX CE 63V 100U 20% RL 10x12.5 C44,45
1 157I-476M-5-OV CE 63V 47U 20% RL 8x11.5 C52
1 157Q-476M-5-LUA CE 35V 47U 20% RL 6.5X11 ELNA C49
2 8910-0492-0 CE 63V 12000uF 20% RL 35X45 C59,60
10 4701-101J-2 RCF 1/8W 100R 5% AT R81, 83, 110, 111, 114, 115, 116,

117, 120, 121
2 4701-102J-2 RCF 1/8W 1K 5% AT R145,146
9 4701-103J-2 RCF 1/8W 10K 5% AT R85,87,88,89,92,99,100,101,137
4 4701-104J-2 RCF 1/8W 100K 5% AT R80,96,131, 132
2 4701-123J-2 RCF 1/8W 12K 5% AT R95,109
3 4701-153J-2 RCF 1/8W 15K 5% AT R82,104,105
1 4701-154J-2 RCF 1/8W 150K 5% AT R90
2 4701-183J-2 RCF 1/8W 18K 5% AT R134,135
2 4701-202J-2 RCF 1/8W 2K 5% AT R98,147
2 4701-203J-2 RCF 1/8W 20K 5% AT R84,93
2 4701-272J-1 RCF 1/8W 2.7K 5% AL R87,108
2 4701-333J-2 RCF 1/8W 33K 5% AT R136,138
1 4701-334J-1 RCF 1/8W 330K 5% AL R102
2 4701-391J-2 RCF 1/8W 390R 5% AT R106,107
1 4701-514J-2 RCF 1/8W 510K 5% AT R91
2 4701-562J-2 RCF 1/8W 5.6K 5% AT R124,126
4 4701-563J-2 RCF 1/8W 56K 5% AT R129,130,133,139
1 4701-682J-2 RCF 1/8W 6.8K 5% AT R103
1 4701-913J-2 RCF 1/8W 91K 5% AT R94
1 4707-152J-2 RCF 1/2W 1.5K 5% AT R140
1 4711-105A-2 RMF 1/8W 1M 1% AT R86
1 4711-273A-2 RMF 1/8W 27K 1% AT R97
4 4718-100J-C-X RMF 1W 10R 5% ATS METAL OXIDE R112,113,127,128
4 4719-222J-1-X RMF 2W 2.2K 5% AL METAL OXIDE R141,142,148,149

5

POWERED SUBWOOFER

PARTS LIST

POWER AMP SECTION

PRINTED CIRCUIT BOARD ASSEMBLY

(CONTINUED)

QTY PART NO DESCRIPTION LOCATION

4 474B-0R1J-1 RWR 5W 0.1 5% AL R118,119,122,123
2 474B-271J-1 PWR 5W 270R 5% AL R143,144
1 3130-3020-0 IC LM7915CT REGULATOR U15
1 3130-3030-0 IC LM7815CT REGLATOR U14
1 3130-3550-0 IC TA7317P U13
1 3130-4080-0 IC TL072CP DUAL FET OP AMP TI U12
1 3130-9150-0 IC LM3080N OTA NATIONAL U9
2 3131-7220-0 IC TL062 LOW POWER JFET U10,11
1 485D-1390-5 TR BD139-10 HFE63-160 Q14
1 4860-1430-5 TR BD140-10 HFE 63-160 Q15
1 4860-2390-5 TR 2N3906 NS Q9
2 4860-8890-0 TR MPS A06 VCE 80V NS Q12,13
2 4860-8910-0 TR MPS A56 VCE 80V NS Q11,20
2 4840-0010-2 DIODE 1N4001 ELE-DO002 D9,10
8 4840-8060-2 DIODE 1N4148 NS D3,4,5,6,7,8,12,13
3 4132-1551-0 TERMINAL OUT PUT SPK+,SPK,R.GND­1 4500-8090-1 RELAY RUUH-SH-124D 15A GOOD SKY RLY1
1 4756-2036-3-15 SVR B20K H3 VZ067TL7B 6.3X 6.8 HDK TP1
1 4840-0720-0 BRIDGE 8A BR84 RECTRON D11
1 1806-2393-0

TT-9904 LE 1012A 1X12TX6 MM SPRING COIL

L1
3 2101-1231-0 SPADE TERMINAL 6.3X0.8 STRAIGHT AC1,2,VO
1 2101-9140-0 WAFER JM24182-3P CN3
2 2607-3009-0550 SPRING WASHER M3X0.9X5.5 MM ZNC U14,15
2 2954-2606-0000 SCREWS BT 2.6X6 U14,15
1 2954-3008-3000 T3X8MM SELF TAPPING U14
2 5400-9130-0 HEAT SINK FOR 7805 2438- 17 U14,15
1 7012-6518-0 CONN WIRE UL1007 #18 BK W/SPADE R.GND
1 8910-0196-0 THERMISTOR NTH4G 10K 1% MURATA TH1
1 AI-25654A-01-S FC8D0C POWER AMP (AI)
29 635N-0001-0 WJ #23 AT FOR AI MACHINE JP37, 38, 39, 40, 41, 42, 43, 44,

45, 46, 47, 48, 49, 50, 51, 52,

53, 54, 55, 56, 57, 58, 59, 60, 61,

62, 63, 64, 65
1 1725-654A-0000 PCB POWER AMP PSW2500 S/S P/P 94V0 REV:B

6

POWERED SUBWOOFER

PARTS LIST

VOLT SELECTOR SECTION

PRINTED CIRCUIT BOARD ASSEMBLY

QTY PART NO DESCRIPTION LOCATION

1 153Z-103M-5-7T CM 275V 0.01UF 20% RL 18X10.5 C60,70
1 5200-3627-0 SL14-22AH (1A) SW 2P2T AC SELECTOR SW2
1 635N-0001-0 WJ #23 AT FOR AI MACHINE JP61
1 1723-780A-0000 PCB VOLT SELECTOR REV:C FC310C

PRE AMP&POWER AMP ASSEMBLY

QTY PART NO DESCRIPTION LOCATION

4 2640-4070-1500 T-NUT M4 JIC003-00
1 3000-7317-0 MODEL LABEL FOR 8900-6140-0
1 3300-6560-0 WH122*55.8*6 4M5 76.5
1 3800-5150-0 VC50.5KSV3.2*0.45*42
1 4134-4071-0 TML 0.5*205*110REV 90DEG JD8003
4 2901-6014-4000 FLAT COUNTER SINK HEAD
4 4153-9413-0 SUBWOOFER FOOT 8100B PART A (BK)
4 4153-9421-0 SUBWOOFER FOOT PSW2000 PART B
1 145A-6512-2 M.BOX FOR PSW2010
6 2900-4015-3000 MA SCREW 4*15 6.8MM BK/R JG1856-01
8 2910-4020-3000 SCREW T4.0X20MM TAPPING
2 3000-4447-0 LABEL, BARCODE BLANK
1 3000-6333-0 BARCODE S/N LABEL SP8387
1 3000-7328-0 UPC LABEL FOR PSW2010 BLACK (US)
1 3000-8902-0 MADE IN CHINA LABEL
4 4153-3341-0 NITRILE RUBBER GASKET 15*1.5
1 4154-2241-0 TEMPERED GLASS TINTED BS6206-1981
1 4301-5219-0 MANUAL FOR PSW2010
1 4301-6037-1 W.CARD FOR KEF (1 YEAR)

7012-0390-0 #18AWG TWIN RED #205*2 & RED/BK

10"SPEAKER ASSEMBLY

QTY PART NO DESCRIPTION LOCATION

1 8900-6140-0 10" WF FOR FC8D0C-EU/UK/ US

7

POWERED SUBWOOFER

PARTS LIST

POWER CORD CABLE ASSEMBLY

QTY PART NO DESCRIPTION LOCATION

1 7011-6210-0 SJT #18 /3C 2M BLK POWER *US
1 *UK
1 *EU
1 *KR

8

POWERED SUBWOOFER

BLOCK DIAGRAM

RCA-1A

OUT PUT

CURRENT

AMPLIFIER

POWER SUPPL Y

L HI PASS

AC/DC

HIGH PASS OUTPUT

U2B

AUTO ON/OFF

Q14, Q15, Q17, Q1 8

OVER CURRENT

SPK OUT PUTT

INPUT

R.CH

HIGH PASS OUTPUT

U1A

T1,D11

+

U4A

VR1

20K Ax 1

_

RCA-1B

INPUT

L.CH

RCA-1D

OUT PUT

R HI PASS

U3B

SW3

AGC

U10, U11, U12, U 13B

U13

VR2

LED1

DUAL L ED COLOR

PROT ECT RELAY

PLY 1

AUTO

MANLIAL

GREEN/O N

RED/OFF

SELECT

SW-2P1T

+V cc -Vcc0V

REGULATOR

U14, U1 5

(115V /230V )

+1 5V

-15V

(25H z/3d B )

LOW PASS FILTER

(40- 140H z/ 12dB )

IEC1

IEC SOCKE T

L

N

E

AC 115V /230V

SW5

OFF SET PROTECT

HIGHT PASS FILTER

U4,U5B

LEVEL ADJUST

PHA SE ADJUST

U7

VR3

50K Bx 2

(0-180D E GRE E)

130H z/ 3dB

130H z/ 3dB

BASS BOOST

40H Z +6 dB

SLOPE SELECT

U5A,U6

SW2

12d B

24d B

U2A

BA4560

U1B

BA4560

SW1

(40- 145H z/12d B)

! !

MUSIC

CINEMA

RCA-1C

SW4

C68

104

SIGNAL POWER

EARTH

GROUND

GROUND

9

POWERED SUBWOOFER

SCHEMATIC DIAGRAM

Power Amplifier

V

+V cc

R143

100/ 2W

Vin

+15V

U14

7815

+15V

CN5

1

2

7

U12B

TL072

5

6

C65

100p

+15V

D12

1N4148

R93

20K

105

C31

R87

10K

CN1

C59

C57

R141

GND

C55

C53

2PI N

C67

D13

312

AC1

8200u /50V

104

2K2/ 2W

220u /16V

100n

104

1N4148

D11

6R4

AC0

GND

R GND

D4

1N4148

U11A

84

+15V

3

-15V

1

U10A

-15V

2

C33

470P

R86

R82

AF/IN

AF/IN

IEC1

!!

AC2

CN3

C60

8200u /50V

104

C58

-Vcc

R144

100/ 2W

R142

2K2/ 2W

Vin

GND

-15V
U15

7915

C56

220u /16V

C54

100n

-15V

1

TL062

R96

100K

-15V

2

R95

12K

R94

91K

+V cc

TL062

3

1M

U9

7

+15V

8

15K

+15V

CA3080N

R145

8 4

AGC

R85

10K

1

6

4

-15V

5

2

3

R80

100K

+15V

TP1

20K B

F1

312

T2.5AL/2 50V

C68 104

C69

10n /275V ac

!

5

4

FUSE

T1

TT-00017

6

AC1

D5

1N4148

7

U11B

R99

10K

5

6

R97

24K

1K

U10B

6

R88

10K

Q9

3906

R84

20K

-15V

-Vcc

R92

10K

D3

1N4148

R90

150K

7

TL062

R89

10K

5

C32

470P

R83

100

R81

100

LN

IEC SOCKE T

2K

510K

AC 115V/ 230V

E

C70

SW2A

2

1u/ 50V

SW3B

10n /275V ac

C62

SW-2P1T

SW 2P2T

1

8

104

AC2

R102

C63

100n /275 V ac

SW3A

SW-2P1T

SW2B

230V

115V

3

7

C61

104

AC0

TL062

R98

C34

R91

V

D10

1N4001

CN2

15V /OU T

C52

47u /63V

R140

1K5 1/ 2W

D9

1N4001

33K

R136

AF/IN

18K

+V cc

R126

R122

100

R116

330K

R135

A56

Q20

5K6

L1

5K6

R125

R124

r1/5W

R120

C44

100u /63V

C42

680p

R110

100

Q11

D6

1N4148

R106

102

C37

10K

R101

12T

Q18

2SA 1943

100

Q14

BD139

R112

A56

390

15K

R104

C39

100p

1

48

-15V

3

C64

100p

R100

SPK

RLY1

RELAY

10K

R137

D8

1N4148

56K

R133

C49

47u /35V

C48

R132

100K

1u/ 50V

R131

100K

R127

10/ 1W

224

C47

10/ 1W

R113

10/ 1W

C41

2u2/ 50V

A06

Q12

R109

12K

2K7

R108

15K

R105

U12A

TL072

C38

47p

+15V

2

10K

TH1

10K

2K

R147

1K

R146

312

-15V

3

9

8

Q19

Q15

BD140

Q13

A06

C40

100p

+15V

R139

56K

C51

u47/ 50V

6

U13

TA7317P

1

2

56K

R129

C66

2u2/ 50V

33K

R138

7

5

4

18K

R134

C50

47u /16V

56K

R130

-Vcc

R128

10/ 1W

R123

R121

R107

R103

C36

CN6'

100

R117

C45

C43

390

6K8

330n

224

C71

1

2

100u /63V

680p

100

R111

D7

1N4148

2PI N

10

POWERED SUBWOOFER

SCHEMATIC DIAGRAM

Pre Amplifier

+12dB

LOW PASS FILTER

22K

R60

12K

C36

100P

LOW PASS FILTER

+12dB

22K

R54

C15

823

C14

R19

20K

R20

2

-15V

U2A

2u2/50V

C40

C39

-15V

C35

C34

R57

12K

823

10K

R61

R55

3

84

BA4560

+15V

1

C13

R/OUT

68N

R62

C37

R58

16K

C33

R64

68N

VR2C

68N

16K

-15V

68N

VR2A

5

C16

L/OUT

VR2D

100KB

16K

u1/100V

VR2B

100KB

100P

R10

7

100KB

16K

+15V

2

6

100KB

1

2

6

6

BA4560

2

1

BA4560

R59

7

BA4560

BA4560

3

7

BA4560

C17

823

20K

U2B

2u2/50V

6

1

R142

3

5

U4A

5

R9

7

BA4560

R143

BA4560

3

100K

C38

U5A

15K

U5B

R141

+15V

R140

100K

U4B

C18

5

U6A

8 4

823

U6B

100K

u1/100V

8 4

100K

10K

-15V

R139

8 4

7K5

R63

+15V

3K9

R24

220n

C26

R56

7k5

1

2

15K

CN5

2PIN

R3

22K

C4

1N4148

C1

-15V

100n

84

+15V

100P

+15V

D2

L/IN

C3

100P

D1

SW1

C81

7

6

R25

1

BA4560

3

10KR610K

R2

R1

2K

1N4148

CN1

123

SW2P2T

CINEMA

100P

BA4560

5

3K3

U1A

2

-15V

U9B

C5

-15V

R5

CN7

SW4

SW2P2T

1

2

R26

C27

100n

123

BA4560

C6

2K

D3

3PIN

MUSIC

U9A

+15V

8 4

3

10K

R23

330K

R21

68n

U3A

+15V

84

3

R8

R7

100P

C2

100P

-15V

1N4148

1K

R4

3PIN

AF/OUT

40HZ +6dB

BASS BOOST

2K2

1

BA4560

2

30K

C9

22K

+15V

D4

1N4148

D5

-15V

C11

100P

1N4148

LPF-OUT

SW2

2u2/50V

R27

R13

-15V

10K

C7

22K

100P

+15V

SW2P2T

2

VR1

D6

R/IN

R70

R69

R66

R65

20KA

U1B

5

R12

R11

1N4148

7

U7B

BA4560

100K

5

6

100K

R68

5

46

1

-15V

BA4560

100K

100K

C12

13

R22

U3B

5

R18

7

224

7

BA4560

30K

BA4560

6

10K

2K

2K2

6

C10

R16

R15

3

2

R67

2

13

100P

10K

C8

2K

D7

1N4148

R14

C43

220N

C42

104

7K5

Phase 0 to 180

50KB

VR3B

U7A

+15V

8 4

C41

224

8K2

50KB

VR3A

R28

10K

22K

R17

100P

+15V

-15V

D8

1K

1N4148

220N

C44

R71

27K

R72

33K

3

2

8 4

BA4560

-15V

+15V

U8A

1

C45

220N

High Pass Filter

C46

U8B

2u2/50V

220N

R74

75K

5

6

BA4560

7

CN2A

1

2

+15V

Q7

9012H

1K

R89

470

R90

Z3

5V1

1K

R87

R86

10K

Q4

9012H

Q3

R82

68K

R81

2M2

R80

1M2

C22

470u/16V

Z1

100P

C20

R75

1.2M

123

R88

4K7

Q5

9013H

9012H

R79

470

3V3

R76

C24

Q6

D10

R84

47u/16V

C21

56K

C2A

9013H

1N4148

2K2

Z2

Q1

10u/25V

7

6

3PIN

5V1

9013H

BA4560

5

47u/16V

AUTO

R83

U15B

-15V

C23

100u/16V

2K2

R78

DUAL/LED

SW2P2T

SW3

MANLIAL

C25

10K

D9

R77

1N4148

R85

10K

LED1

100n

4K7

Q2

9013H

Auto On/Off

R73

12K

CN6

2PIN

+15V

C19

11

POWERED SUBWOOFER

PCB LAYOUT

Power PCB Component Side Power PCB Copper Side

12

POWERED SUBWOOFER

PCB LAYOUT

PreAMP PCB
Component Side

PreAMP PCB
Copper Side