KEF PSW-2000 Service manual

SERVICE MANUAL

CONTENTS

SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-8

PARTS LIST:

PRE AMPLIFIER BOARD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-10

POWER AMPLIFIER BOARD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10-11

VOLTAGE SELECTOR BOARD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

PRE AMP AND POWER AMP ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

8” SPEAKER ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

POWER CORD CABLE ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

BLOCK DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14

SCHEMATIC DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15-16

PCB LAYOUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17

EXPLODED VIEW DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18-19

POWERED SUBWOOFER

POWERED SUBWOOFER

2

SPECIFICATIONS

System Specifications

Frequency Response 70-20K Hz
Sensitivity 85+/-2dB
Power Handling 70W Max
Dimension (W x D x H) 198 x 130 x 150 mm
Weight 2.1kg
HF 12mm (0.5") tweeter
LF 100mm (4")
Crossover Frequency 3KHZ
Impedance 4 OHM

Woofer Specifications

Rated Impedance 3.8 ohms +/- 0.8 at 1V 500 Hz
Voice coil DCR 3 +/-0.15 ohm
Sweep Test Sine Wave 4V at 20-20K Hz
Resonant Frequency (Fo) 65 +/- 15 Hz
Sensitivity 85 dB/W/m
Rated Power Input 30W
Maximum Power Input 60W
Power Test 15W Music Max/Channel

30W RMS/Channel

(The rated power is verified by performing power handling test by feeding

rated output with "IEC268-5" for 8 hours)
Main Magnet Ø74 x Ø38 x 15mm
Bucking Magnet Ø55 x Ø26 x 9mm

Tweeter Specifications

Rated Impedance 4+/-0.8 OHM at 1V 5K Hz
Voice coil DCR 3.2 +/-0.16 OHM
Sweep Test Sine Wave 1 V at 500-20K Hz
Resonant Frequency (Fo) 2500 +/- 240 Hz
Sensitivity 89 +/-2dB/W/m
Frequency Response Fo - 20K Hz
Rated Power Input 30W
Main Magnet Ø10 x 2mm
Magnet Material N35

3

POWERED SUBWOOFER

SPECIFICATIONS

Subwoofer Specifications

Typical LIMIT UNIT

1) CONTINUOUS POWER 120 115 W
(@ 90Hz, 0.1% THD)

2) THD (@90Hz 110W ) 0.08 0.09 %

3) CLIPPING POWER
(Output 1% THD @ 90Hz ) 125 120 W

4) INPUT SENSITIVITY
@ 120W 4 ohm 70Hz
LINE . INPUT VOL . Max 95 +/-10% mV
SPK . INPUT VOL . Max 0.8 +/-10% V

5) S/N @ 12W 75Hz 90 85 dB

@ 120W 75Hz 100 95 dB

( A-WEIGHT, LINE INPUT )

6) LOW PASS FILTER @ 75Hz
Freq VOL Set to Max. Low -3dB 50 +/-10% Hz
Freq VOL Set to Max. Upper -3dB 115 +/-10% Hz

7) LOW PASS FILTER @ 60Hz
Freq VOL Set to Min. Low -3dB 45 +/-10% Hz
Freq VOL Set to Min. Upper -3dB 80 +/-10% Hz

8) LOW PASS FILTER ROLL-OFF
Freq VOL Set to Max. 22 +/-2 dB

9) LOW PASS FILTER ROLL-OFF
Freq VOL Set to Min. 22 +/-2 dB

10) LINE OUTPUT @1V INPUT
HI PASS FILTER -3dB
( LINE IN @ 1KHz )
Freq VOL Set to Max. 170 +/-10% Hz
Freq VOL Set to Min. 70 +/-10% Hz

11) LINE OUTPUT @1V INPUT
HI PASS FILTER ROLL-OFF
LINE IN @ 1KHz
( 0 dB O/P Ref )
Freq VOL Set to Max. 12 +/-2 dB
Freq VOL Set to Min. 18 +/-2 dB

12) LINE OUTPUT
LINE IN @ 1KHz 1V INPUT
( 0 dB O/P Ref )
Freq VOL Set to Max. 1.2 +/-10% V

POWERED SUBWOOFER

4

SPECIFICATIONS

13) SPEAKER OUTPUT
HI PASS FILTER -3dB 130 +/-10% Hz
( SPEAKER IN @1KHz )
@ 4 ohm Load

14) SPEAKER OUTPUT
HI PASS FILTER ROLL-OFF 7 +/-1 dB
SPEAKER IN @ 1KHz
@ 4 ohm Load
( 0dB 1W 0/P Ref )

15) INPUT IMPEDANCE RCA 25K 15K OHM

SPEAKER 200 +/-10 OHM

16) AUTO TURN ON LEVEL 2.5 +/-1 mV

17) AUTO OFF DELAY TIME 50 40 Min

18) PHASE ADJUSTABLE 0- 180 0-170 Degree
@ 75-85Hz 10V O/P 0 Degree Ref:
PHASE VOL SET Min to Max

19) HUM & NOISE ( 17Hz -17KHz Filter ) 3 5 mV
1OK OHM LOAD @ INPUT
LEVEL VOL SET to Max
FREQ VOL & PHASE VOL SET to min

20) Current Consumption
UL 115 Vac @ 120W OUTPUT 2.0 2.5 A

@ IDLE .07 .09 A

CE 230 Vac @ 120W OUTPUT 1.5 2.0 A

@ IDLE .04 .06 A

UK 230 Vac @ 120W OUTPUT 1.5 2.0 A

@ IDLE .04 .06 A

5

POWERED SUBWOOFER

SPECIFICATIONS

POWERED SUBWOOFER

6

SPECIFICATIONS

7

POWERED SUBWOOFER

SPECIFICATIONS

POWERED SUBWOOFER

8

SPECIFICATIONS

9

POWERED SUBWOOFER

PARTS LIST

PRE AMP SECTION

PRINTED CIRCUIT BOARD ASSEMBLY

QTY PART NO DESCRIPTION LOCATION

1 150F-101K-5-IEA CC 50V 100PF 10% RL 5X3 C29
1 150F-104M-N-FD CC 50V 0.1µƒ 20% RLF C27
2 150F-271K-5-IEA CC 50V 270PF 10% RL 5x3 C3,11
4 150F-334M-N-JJA CC 50V 0.33µF 20% RLF MONO C4,5,12,13
7 153H-104K-5-QUA CM 100V 0.1µF 10% RL 9X11 CENTRALAB C7,15,17,18,19,20,22
2 153H-333K-5-MRA CM 100V 0.033µF 10% RL 7X9.5 C8,16
2 153H-683K-5-PSA CM 100V 0.068µF 10% RL C64,65
1 157C-477M-5-OU CE 10V 470µF 20% RL 8X11 C24
2 157D-107M-5-KW CE 16V 100µF 20% RL 6x12 C21,25
1 157D-476M-5-IU CE 16V 47µF 20% RL 5x11 C26
2 157E-106M-5-IU CE 25V 10µF 20% RL 5x11 C23,30
5 157F-225M-5-IU CE 50V 2.2µF 20% RL 5x11 C1,2,9,10,28
1 157F-225M-5-IU CE 50V 2.2µF 20% RL 5x11
1 2101-1357-0 WAFER JM2411-8 8PIN CN3
1 2101-9790-0 4RCA JACK HSP-204V-03 GP RCA1
8 3131-6140-0 IC BA4560 ROHM U1,2,3,4,5,6,7,8
1 3700-4536-RG L-115W EGW/209EGW RED/GR ELE-LED02 LED1
4 4701-102J-2 RCF 1/8W 1K 5% AT R11,34,71,73
23 4701-103J-2 RCF 1/8W 10K 5% AT R3, 6, 10, 15,16, 18,19, 21, 23,

26, 29, 33, 38, 39, 41, 42, 44, 46,

60, 62, 70, 76, 79,
2 4701-104J-2 RCF 1/8W 100K 5% AT R7,30
1 4701-125J-C RCF 1/8W 1.2M 5% ATS R64
2 4701-153J-2 RCF 1/8W 15K 5% AT R48,52
1 4701-162J-2 RCF 1/8W 1.6K 5% AT R56
8 4701-222J-2 RCF 1/8W 2.2K 5% AT R12,13,35,36,49,53,66,68,
1 4701-224J-2 RCF 1/8W 220K 5% AT R78
1 4701-225J-2 RCF 1/8W 2.2M 5% AT R65
6 4701-273J-2 RCF 1/8W 27K 5% AT R17, 22, 40, 45, 51, 55
4 4701-303J-2 RCF 1/8W 30K 5% AT R1,24,50,54,
1 4701-391J-2 RCF 1/8W 390R 5% AT R57
2 4701-471J-2 RCF 1/8W 470R 5% AT R63,74
4 4701-472J-2 RCF 1/8W 4.7K 5% AT R58,59,69,72,
1 4701-563J-2 RCF 1/8W 56K 5% AT R77
1 4701-682J-2 RCF 1/8W 6.8K 5% AT R37
1 4701-683J-2 RCF 1/8W 68K 5% AT R67
4 4718-101J-C-X RMF 1W 100R 5% ATS METAL OXIDE R8,9,31,32
1 4750-5510-0 VR 20KBX2 VR16G20K15B20K L=15MM VR1
1 4750-5520-0 VR 20KAX1 VR16N20K15A20K L=15MM VR2
1 4750-5530-0 VR 10KBX1 VR16N20K15B10K L=15MM VR3
1 4837-3V36-2 DZ 1/2W +-5% 3.3V TEMIC AT Z3
2 4837-5V16-2 DZ 1/2W 5.1V "TEMIC" AT Z1,2
2 4840-8060-2 DIODE 1N4148 NS D1,2
3 4860-8710-5 TR 9012H Q3,4,7
4 4860-8720-5 TR 9013H SAMSUNG Q1,2,5,6
1 5200-3281-0-06 SW COMAX SK-22D01-SG6-T-NS-IK SW1

POWERED SUBWOOFER

10

PARTS LIST

PRE AMP SECTION

PRINTED CIRCUIT BOARD ASSEMBLY

CONTINUED

QTY PART NO DESCRIPTION LOCATION

2 4701-123J-2 RCF 1/8W 12K R20, 43
2 4701-912J-2 RCF 1/8W 9.1K R4, 27
1 7010-2221-0 3 PIN SHIELD WIRE ASSY L=130MM CN1
1 7010-2222-0 3 PIN FLAT CABLE ASSY L=100MM CN2
1 7011-3240-0 2254 1533 #26 2X2PIN BRN 100MM 1-51-112 CN4
2 7011-4570-0 AMP108U AWG26 180MM BRWN NALX2 1-51-274CN5,6
2 8910-0042-0 CE 50V 300µF RL 10% NON-POLARITY C6,14
1 1725-296A-0002 PCB POWER AMP REV:E FC380C

4 150F-101K-5-IEA CC 50V 100P 10% RL 5X3 C39,40,64,65
2150F-104M-N-FD CC 50V 0.1µF 20% RLF C53,54
1 150F-334M-N-JJA CC 50V 0.33µF 20% RLF MONO C36
1 150F-470K-5-IEA CC 50V 47P 10% RL 5X3 C38
2 150F-471K-5-IEA CC 50V 470P 10% RL 5x3 C32,33
2 150F-681J-5-OI CC 50V 680PF 5% RL 8X5 C42,43
2 150H-472M-5-IE CC 100V 4700PF 20% RL 5X3 TEC C61,62
1 153H-102K-5-INA CM 100V 0.001µF 10% RL 5X7.5 C37
3 153H-104K-5-QUA CM 100V 0.1µF 10% RL 9X11 CENTRALAB C35,57,58
1 153H-224K-5-VYA CM 100V 0.22µF 10% RL 11.5X13 C47
1 153I-154J-9-NL CM 63V 0.15µF 5% RB 7.5x6.5 C31
2 157D-227M-5-KW CE 16V 220µF 20% RL 6x12 C55,56
1 157E-106M-5-IU CE 25V 10µF 20% RL 5x11 C50
2 157F-105M-5-IU CE 50V 1µF 20% RL 5x11 C34,48
2 157F-225M-5-IU CE 50V 2.2µF 20% RL 5x11 C41,66
1 157F-474M-5-IU CE 50V 0.47µF 20% RL 5X11 C51
2 157I-107M-5-SX CE 63V 100µF 20% RL 10X12.5 C44,45
1 157I-476M-5-OV CE 63V 47µF 20% RL 8X11.5 C52
1 157Q-476M-5-LUA CE 35V 47µF 20% RL 6.5X11 ELNA C49
1 1806-2393-0 TT-9904 LE 1012A 1X12TX6MM SPRING COIL L1
3 2101-1231-0 SPADE TERMINAL 6.3X0.8 STRAIGHT AC1.AC2,VO
1 3130-3020-0 IC LM7915CT REGULATOR U15
1 3130-3030-0 IC LM7815CT REGULATOR U14
1 3130-3550-0 IC TA7317P U13
1 3130-4080-0 IC TL072CP DUAL FET OP AMP T1 U12
1 3130-9150-0 IC LM3080N OTA NATIONAL U9
2 3131-7220-0 IC TL062 LOW POWER JFET U10,11
2 4132-1551-0 TERMINAL OUT PUT SPK+, SPK­1 4500-8090-0 RELAY RUDH-SH-124D "GOOD SKT" RLY1

POWER AMP SECTION

PRINTED CIRCUIT BOARD ASSEMBLY

QTY PART NO DESCRIPTION LOCATION

11

POWERED SUBWOOFER

PARTS LIST

POWER AMP SECTION

PRINTED CIRCUIT BOARD ASSEMBLY

CONTINUED

QTY PART NO DESCRIPTION LOCATION

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
10 4701-103J-2 RCF 1/8W 10K 5% AT R85, 88, 89, 92, 99, 100, 101,

103, 130, 137
3 4701-104J-2 RCF 1/8W 100K 5% AT R96,131,132
2 4701-123J-2 RCF 1/8W 12K 5% AT R95,109
1 4701-124J-C RCF 1/8W 120K 5% ATS R80
1 4701-474J-C RCF 1/8W 470K 5% ATS R86
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
1 4701-243J-2 RCF 1/8W 24K 5% AT R97
1 4701-272J-2 RCF 1/8W 2.7K 5% AT R108
2 4701-333J-2 RCF 1/8W 33K 5% AT R136,138
1 4701-334J-2 RCF 1/8W 330K 5% AT R102
2 4701-391J-2 RCF 1/8W 390R 5% AT R106,107
1 4701-473J-2 RCF 1/8W 47K 5% AT R87
1 4701-514J-2 RCF 1/8W 510K 5% AT R91
3 4701-562J-2 RCF 1/8W 5.6K 5% AT R124,125,126
3 4701-563J-2 RCF 1/8W 56K 5% AT R129,133,139
1 4701-913J-2 RCF 1/8W 91K 5% AT R94
1 4707-152J-2 RCF 1/2W 1.5K 5% AT R140
4 4718-100J-C-X RMF 1W 10R 5% ATS METAL OXIDE R112,113,127,128
2 4719-222J-1-X RMF 2W 2.2K 5% AL METAL OXIDE R141,142
4 474B-0R1J-1 RWR 5W 0.1 5% AL R118,119,122,123
2 474B-271J-1 RWR 5W 270R 5% AL R143,144
1 4756-2036-3-15 SVR B20K H3 NVZ6TL1 6.3X6.8 HDK TP1
2 4804-0010-2 DIODE 1N4001 AT D9,10
1 4840-0720-0 BRIDGE 8A BR84 RECTRON D11
8 4840-8060-2 DIODE 1N4148 NS D3,4,5,6,7,8,12,13
1 485D-1390-5 TR BD139-10 PHILIPS HFE63-160 Q14
1 4860-1260-5 TR 2N3906 SAMSUNG RL Q9
1 4860-1430-5 TR BD140-10 HFE 63-160 Q15
2 4860-8890-0 TR MPS A06 VCE 80V NS Q12,13
2 4860-8910-0 TR MPS A56 VCE 80V NS Q11,20
1 8910-0196-0 THERMISTOR NTH4G 10K 1% MURATA TH1
2 8910-0492-0 CE 63V 12000µF 20% RL 36X45 C59,60
1 1725-296A-0002 PCB POWER AMP REV:E FC380
2 4860-5050-5 TR 2SC5200 T0-3P (L) TOSHIBA Q17,19
2 4860-5060-5 TR 2SA1943 T0-3P (L) TOSHIBA Q16,18

POWERED SUBWOOFER

12

PARTS LIST

VOLT SELECTOR SECTION

PRINTED CIRCUIT BOARD ASSEMBLY

QTY PART NO DESCRIPTION LOCATION

2 153Z-103M-5-7T CM 275V 0.01UF 20% RL 18X10.5 C69,70
1 5200-3627-0 SL14-22AH (1A) SW 2P2T AC SELECTOR SW2
1 1723-780A-0000 PCB VOLT SELECTOR REV:C FC310C
14 2101-1231-0 SPADE TERMINAL 6.3X0.8 STRAIGHT 1, 2, 3, 4, 5, 6, L, N,

SW2-1, SW2-2, SW2-3,
SW2-4

PRE AMP & POWER AMP ASSEMBLY

QTY PART NO DESCRIPTION LOCATION

1 1402-3070-0 X'FORMER MTG. BKT T1
1 1403-6420-0 REAR PANEL FC380C T1
1 153Z-104M-5-7W CM 275V 0.1µF 20% RL 18X12 PCX2 335M MD104 PILKO C63
1 1725-327A-0000 INSULATION PCB-3 PANEL
1 1806-2415-0 TT-00018 TOROIDAL TRANSFORMER 15V/230V T1
4 2103-7001-0 BINDING POST RED SPK IN+
4 2103-7101-0 BINDING POST BLK SPK IN­3 2436-6501-1 VOL/FREQ KNOB VR FREQ PHAS
8 2600-3005-0800 METAL WASHER M3X0.5X8MM ZNC PWRM-PCB, Q16. 17,

18, 19
8 2600-5008-1000 METAL WASHER M5X0.8X10MM YZ SPK IN+
1 2606-3005-0643 INT TEETH WASHER M3X0.5X6.4MM BZ PANEL
1 2606-4008-0853 INT TOOTH WASHER M4X0.8X8.5MM BZ EARTH
15 2607-3009-0550 SPRING WASHER M3X0.9X5.5MM ZNC FOR PCB,IEC1,PWRM

PCB, Q16, 17, 18, 19,

VOLT-PCB
5 2607-4010-0704 SPRING WASHER M4X1X7MM NI EARTH
2 2640-3022-0540 M3 NUT IEC1
5 2640-4030-0704 NUT HEX M4 EARTH,T1
2 2842-6213-0 METAL WASHER (6X1.0X13MM) T1
2 2904-2608-3000 SCREW BH M2.6X 8 MM BZ CROSS FOR PANEL,FOR PCB
8 2904-3006-3000 SCREW M3X6 BINDING (BLK) PANEL,VOLT-PCB
2 2904-3010-3000 SCREW M3X10 (BLK) IEC1
5 2904-4010-3000 SCREW M4X10 (BLK) PANEL,T1
5 2954-3008-3000 T3X8MM SELF TAPPING H.S,RCA1
4 2954-3010-3000 B-TITE 3X10MM (BLK.ZN) H.S
8 2954-3014-3000 B-TITE 3X14MM(BLK.ZN) Q16,17,18,19
4 3100-3171-0 MICA SHEET A (24X20) Q16,17,18,19
1 4133-2090-0 2204-3 MTG BKT PWRM PCB
4 4135-0271-0 BRASS TUBE 6XM3X12MM REAR PANEL
1 4153-1250-0 2209 SW COVER 1-41-112 SW1
1 4153-3800-0 POWER INLET SOCKET SC9F-21 IEC1
2 5120-0079-0 FUSE T3.15A 250V 5X20MM UR & SEMKO IEC1
1 5200-4725-0 SWITCH ROCKER 2P1T SW2

13

POWERED SUBWOOFER

PARTS LIST

1 8900-5760-0 8"WOOFER F-SUB

1 7011-6220-0 H05VV-F 0.75MM/3C 2M BLK *EU
1 7011-5030-0 TC1490GP 3CORE CORD 1/P *UK
1 7011-6210-0 SJT #18 /3C 2M BLK POWER *US

8" SPEAKER ASSEMBLY

QTY PART NO DESCRIPTION LOCATION

POWER CORD CABLE ASSEMBLY

QTY PART NO DESCRIPTION LOCATION

PRE AMP & POWER AMP ASSEMBLY

CONTINUED

QTY PART NO DESCRIPTION LOCATION

1 5400-3351-0 HEAT SINK FC380C Q16,17,18,19
1 5400-3361-0 HEAT SINK PLATE FC380C HEAT SINK
7 6360-0011-0 PLASTIC CABLE TIE 97MM T1/IEC1/SPK
2 7010-2217-0 250 T'NAL ASSY L=120MM RED IEC1
2 7010-2218-0 250 T'NAL ASSY L=100MM RED SW3
2 7010-2219-0 250 TNAL ASSY L=100MM BROWN SW3
1 7010-2223-0 RING T'NAL ASSY L=80MM G/Y EARTH
1 7010-2236-0 250 TNA'L ASSY L=130MM BROWN IEC1
1 7010-2237-0 HOUSING ASSY JP2411-8P L=100 FOR SPK/IN

POWERED SUBWOOFER

14

BLOCK DIAGRAM

OUT

+

-

PLY1

PROTECT

CURRENT

AMPLIFIER

Q16,Q17,Q18,Q19

Q14,Q15

AMP DRIVER

U8A

(0-180)

PHASE ADJUST

U13

OVER CURRENT/

OFF SET PROTECT

MUTING

VR3

20KBx1

U7

NOTCH DEPTH

U6

HIGHT PASS FILTER

AGC

U9,U10,U11

U3A,U4A

CROSSOVER

FREQUENCY

(50Hz-130Hz)

VR1A

20KBx2

U1A

PRE-AMP

U8B

AUTO ON/OFF

U2A

BUFFER

AUTO ON/OFF

SW1A

MANLIAL

SW-2P2T

AUTO

LED1

2LED

GREEN/ON RED/OFF

INPUT

LEVEL

FILTER

U3B,U4B

(50Hz-130Hz)

ADJUSTABLE

VR1B

20KBx2

U1B

PRE-AMP

+15V

-15V

U12,U13

REGULATOR

VR2

20KA

U2B

BUFFER

AUTO ON/OFF

+Vcc -Vcc0V

T1,D11

AC/DC

POWER SUPPLY

!!

SW3

SELECT

SW-2P1T

(115V/230V)

RCA

LN

AC 115V/230V

IEC1

IEC SOCKET

E

LOZ

LOZ

INPUT

L/F-

LOZ IN

L/F+

OUTPUT

L/F-

LOZ OUT

RCA

HIZ

R/F OUT

RCA

HIZ

R/F IN

R/F+

RCA

HIZ

L OUT

HIZ

L/F+

L IN

LOZ

LOZ IN

INPUT

R/F-

LOZ

R/F+

OUTPUT

R/F-

LOZ OUT

p

p

p

15

POWERED SUBWOOFER

SCHEMATICS DIAGRAMS

Pre Amp Schematic

2

1

CN6

2PIN

7

U6B

+15V

2

1

BA4560

5

6

2K2

R53

30K

R54

C20

104

C19

104

1

U6A

2

R49

C18

HIGHT PASS FILTER

BA4560

4 8

-15V

3

2K2

R50

30K

104

C17

104

1

2

CN5

2PIN

VR2

20KAx1

R55

27K

R52

15K

R51

27K

R48

15K

CN4

2PIN

1

U8A

BA4560

4 8

-15V

+15V

R62

10K

3

2

R61

10K

C23

10u/25V

7

R59

4K7

U7B

BA4560

5

6

R58

4K7

1

U7A

BA4560

4 8

-15V

+15V

3

2

R56

C21

100u/16V

CN1

AF/OUT

312

1

2

CN4'

VR3

10KBx1

R60

10K

1K6

R57

2PIN

NOTCH DEPTH

C22

104

390

Q7

9012H

Q6

9013H

R74

470

R73

1K

2K2

R66

AUTO

C25

5V1

2K2

9013H

D1

MANLIAL

100u/16V

Q2

SW1

R69

C27

9013H

1N4148

SW2P2T

4K7

100n

LED1

DUAL/LED

CN2

-15V

AUTO ON/OFF

15V/IN

312

+15V

R79

10K

D2

C30

C29

10u/25V

100

1N4148

7

U8B

Z3

R78

220K

C28

2u2/50V

AUTO

BA4560

3V3

5

6

R77

56K

R76

10K

R72

4K7

Z2

5V1

Q5

1K

10K

9012H

470u/10V

R63

470

9013H

Q3

9012H

R68

C26

47u/16V

R67

68K

Z1

Q1

R71

R70

Q4

+15V

R65

2M2

C24

R64

1.2M

C1

2u2/50V

H.P.OUT

RCA1C

R46

U5B

333

6

27K

U2B

5

R33

100K

5

HIGH

LEVELINHIGH

CN3E

R/IN+6CN3F

7

AUTO

R36

7

10K

10K

BA4560

5

2K2

BA4560

6

R/IN-7CN3G

R/OUT-8CN3H

R44

10K

R35

2K2

LEVEL

LOW PASS FILTER

1K

R34

R32

100 1W

R31

100 1W

C14

300uF/50V NP

OUT

R/OUT+

R23

27K

C8

R17

10K

330n

333

27K

1

CN3A

10K

7

U4B

5

6

AUTO

R13

2K2

1

U2A

48

-15V

3

2

R10

10K

R7

100K

HIGH

LEVEL

IN

L/IN+2CN3B

BA4560

BA4560

+15V

L/IN-3CN3C

L/OUT-4CN3D

R21

10K

R12

HIGH

LEVEL

LOW PASS FILTER

2K2

R11

1K

R9

100 1W

R8

100 1W

C6

300uF/50V NP

OUT

L/OUT+

C9

2u2/50V

RCA1D

H.P.OUT

R43

12K

1

U5A

R42

10K

+15V

3

2

R39

10K

C15

104

683

R27

9K1

C65

R26

10K

30K

R24

R CHANNEL

BA4560

4 8

-15V

R41

10K

7

U3B

5

6

VR1B

R37

6K8

7

U1B

BA4560

5

6

C12

330n

R28

12K

C10

2u2/50V

RCA1B

LOW LEVEL IN

BA4560

20KBx2

C11

R45

27K

C16

R40

R38

10K

R29

10K

R30

C13

330n

270

4 8

U1A

2

C4

C2

-15v

U3A

2

R14

1

330n

R5

2u2/50V

RCA1A

R22

R18

10K

1

BA4560

4 8

-15V

3

R15

10K

VR1A

20KBx2

6K8

BA4560

4 8

-15V

3

R6

C5

12K

C3

270

R20

12K

1

U4A

R19

10K

R16

10K

C7

104

683

C64

BA4560

+15v

3

2

+15V

R4

9K1

+15V

R3

10K

R1

30K

L CHANNEL

LOW LEVEL IN

p

p

p
p

p

p

p
p

p

POWERED SUBWOOFER

16

SCHEMATICS DIAGRAMS

Power Amp Schematic

D11

8R4

AC1

CN5'

+15V

V

C59

12000u/63V

104

C57

+Vcc

R143

270/5W

R141

2K2/2W

Vin

GND

+15V

U14

7815

C55

220u/16V

C53

100n

+15V

2

1

2PIN

C66

2u2/50V

7

U12B

TL072

5

6

C65

100

D13

D12

1N4148

C35

104

20K

R93

C31

150n

47K

R87

312

CN1

AC0

R142

GND

SIGNAL GND

84

+15V

1N4148

-15V

U10A

-15V

2

C33

470P

R86

R82

AF/IN

AF/IN

D4

U11A

3

1

+15V

2K2/2W

C56

C54

1

3

470K

+15V

15K

AC2

C60

12000u/63V

104

C58

220u/16V

200n

2

R94

+Vcc

TL062

U9

7

8

R80

R144

GND

1N4148

TL062

91K

+15V

8 4

CA3080N

2

120K

TP1

270/5W

R95

R85

1

20KB

!

100n/275Vac

AC 115V/230V

F1

T3.15AL/250V

C63

!

-Vcc

C69

Vin

!

-15V
U15

7915

FUSE

-15V

R96

100K

-15V

12K

R145

10K

6

4

-15V

5

R84

3

R83

R81

-15V

10n/275Vac

5

6

1K

U10B

6

R88

20K

100

100

T1

7

10K

4

TT-00018

AC1

R99

R92

R90

TL062

5

Q9

SW3A

SW-2P1T

SW2B

230V

115V

3

7

C61

/100V

4700

D5

7

U11B

10K

5

6

R97

10K

D3

1N4148

150K

R89

10K

C32

470P

3906

AGC

AC0

1N4148

TL062

-Vcc

24K

-15V

IEC1

LN

C70

SW2A

2

C62

CN2

E

10n/275Vac

SW 2P2T

1

/100V

4700

2K

R98

C34

R91

510K

IEC SOCKET

8

AC2

1u/50V

312

SW3B

15V/OUT

+15V

SW-2P1T

R102

V

D10

1N4001

1N4001

R112

1

R100

12T

10/1W

R108

2

Q12

15K

TL072

RELAY

R132

A06

2K7

10K

SPK

R139

56K

C51

R137

10K

D8

1N4148

U13

3

9

8

56K

R133

100K

R127

10/1W

C41

2u2/50V

+15V

2K

R147

1

C49

47u/35V

C48

1u/50V

R131

100K

224

C47

Q19

2SC5200

Q17

2SC5200

Q15

BD140

R113

10/1W

Q13

A06

R109

12K

15K

R105

C40

C38

47

TH1

10K

2

1

1K

R146

u47/50V

6

33K

TA7317P

R138

7

5

4

2

C50

10u/25V

56K

R130

56K

R129

R128

10/1W

100

R121

100

R115

390

R107

100

10K

R103

C36

330n

CN6'

2PIN

18K

R134

-Vcc

R123

r1/5W

R119

r1/5W

100

R117

C45

100u/63V

C43

680

100

R111

D7

1N4148

C52

47u/63V

RLY1

R140

1K5 1/2W

D9

R136

33K

AF/IN

18K

R126

R122

R118

100

C44

R110

D6

5K6

r1/5W

r1/5W

100u/63V

C42

100

1N4148

R135

A56

Q20

R124

5K6

680

C37

10K

R101

L1

R125

5K6

R120

100

Q18

2SA1943

R114

100

Q16

2SA1943

Q14

BD139

Q11

A56

390

R106

R104

C39

100

U12A

48

-15V

102

3

C64

100

+Vcc

R116

330K

17

POWERED SUBWOOFER

PCB LAYOUT

Pre Amplifier PCB Component Side

Power Amplifier PCB Component Side

Voltage Selector PCB Component Side

POWERED SUBWOOFER

18

EXPLODED VIEW DIAGRAMS

B(GRAY)

C(BLUE)

A(RED)

L(Y)

N(Y)

M(BLK)

E(BLUE)

D(GRAY)

F

B

I

K

A

J

E

G

D

C

M

L

N

GND

H(RED)

I(RED)

GND

F(GRAY)

G(RED)

K(GRAY)

J(GRAY)

H

CN2CN1

CN3

CN4

CN2

86

45 73

CN1

CN4

CN3

1

2

3

1

7

8

6

5

4

2

10

7

8

9

9

8

9

10

9

8

9

7

8

10

8

12

10

18

18

8

3

4

8

7

9

8

6

5

11

9

8

24

26

24

13

10

27

20

20

22

2

22

7

15

25

14

15

18

20

21

22

17

18

18

15

17

17

17

15

16

1

19

19

17

8

23

18

10

10

8

REF DESCRIPTION PARTS NO. QTY

1 REAR PANEL 1403-6420-0 1
2 TRANSFORMER BRACKET 1402-3070-0 1
3 BRASS TUBE 6*M3*12 4135-0271-0 4
4 VOLTAGE PCB 1723-780A-0000 1
5 PRE AMP PCB 1725-296A-0000 1
6 POWER AMP PCB 1725-296A-0000 1
7 T3*8MM SELF TAPPING 2954-3008-3000 5
8 SPRING WASHER M3*0.9*5.5MM 2607-3009-0550 15
9 METAL WASHER M3*0.5*8MM 2600-3005-0800 8
10 M3*14MM B-TITE (BLK.Zn) 2954-3014-3000 8
11 HEATSINK 5400-3351-0 1
12 HEATSINK PLATE 5400-3361-0 1
13 INSULATION PCB-3 1725-327A-0000 1
14 INT TEETH WASHER M3*0.5*6.4MM 2606-3005-0643 1
15 B-TITE 3*10MM (BLK.Zn) 2954-3010-3000 4
16 VOL/FREQ KNOB 2436-6501-1 3
17 SCREW M4*10 (BLK) 2904-4010-3000 5
18 SCREW M3*6 BINDING (BLK) 2904-3006-3000 8
19 SCREW M3*10 (BLK) 2904-3010-3000 2
20 NUT HEX M4 2640-4030-0704 5
21 INT TOOTH WASHER M4*0.8*8.5MM 2606-4008-0853 1
22 SPRING WASHER M4*1*7MM NI 2607-4010-0704 5
23 M3 NUT 2640-3022-0540 2
24 METAL WASHER M5*0.8*10MM 2600-5008-1000 8
25 SCREW BH M2.6*8MM BZ CROSS 2904-2608-3000 2
26 MTG BRACKET 4133-2090-0 1
27 TRANSFORMER 1806-2415-0 1

19

POWERED SUBWOOFER

EXPLODED VIEW DIAGRAMS

PSW2000 Packing Exploded View

8

7

10

6

3

4

5

11

2

1

9

REF DESCRIPTION PARTS NO. QTY

1 P.FOAM FOR PSW1000/S8 1490-7343-0 4

2 CABINET FOR EGG GRAY 1403-4400-0 1

3 P.BAG 400*450*600 1497-4642-0 1

4 M.BOX FOR PSW2000 145A-6510-0 1

5 UPC LABEL FOR PSW2000 (EU) 3000-6621-0 1

UPC LABEL FOR PSW2000 (UK) 3000-6623-0 1

UPC LABEL FOR PSW2000 (US) 3000-6622-0 1

6 P.BAG 10'*12' W/ES GREEN 1497-4102-0 1

7 MANUAL FOR PSW2000 4301-5166-0 1

8 W.CARD KAL926EFG REG 4301-6016-0 1

9 VOLTAGE LABEL FOR PSW2000 3000-6628-0 1

10 P.BAG 10'*14' W/ES GREEN 1497-4122-0 1

11 BARCODE S/N LABEL 3000-6333-0 1

Aug, 2002

P/N: PSW2000-SM00A

KEF AUDIO (UK) Limited,

Eccleston Road, Tovil, Maidstone, Kent, ME15 6QP UK

Telephone: [phone] Fax: [phone]

KEF America.

10, Timber Lane, Marlboro, New Jersey. 07746. USA.

Telephone: [phone] Fax: [phone]

www.kef.com