KEF PSW3500 Service manual

SERVICE MANUAL

POWERED SUBWOOFER

CONTENTS

SPECIFICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3

PARTS LIST:

LED INDICATORS PCB ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

SWITCHED MODE PSU CIRCUIT PCB ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-7

PRE AMP & POWER AMP PCB ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-12

CASING SMPS ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-13

SPEAKER ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14-16

PACKING ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

BLOCK DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

SCHEMATIC DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19-22

PCB LAYOUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23-25

EXPLODED VIEW DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26-28

Date: Jan.17, 2005

POWERED SUBWOOFER

SPECIFICATION

PSW3500 SPEAKER SPECIFICATIONS

Frequency Response 20 Hz - 500 Hz Sensitivity 89±2 dB Power Handing 200~400 W Weight 8.5Kg Fo 22±4 Hz Impedance 4±20% Ohm Voice Coil DCR 3.9±5% Ohm Main Magnet ø145*ø75*17mm Magnet Material Y30 Magnetic Shielding Yes

PSW3500 SYSTEM SPECIFICATIONS

Type Close box downward ﬁ ring LF Drive Unit 300mm(12 ) long-throw Crossover Frequency L+R variable 40 - 140 Hz LFE ﬁ xed 250Hz Frequency Range(+/-3) 30Hz - 250Hz Ampliﬁ le 300 Watts Sensitivity Active system Maximum Output(PSL) 110dB Impedance N/A Active System Magnetic Shielding Yes Weight 22.5Kg(49.6 lbs) Dimensions(H*W*D) mm 450*600*395 Cabinet Finish Black Ash,Maple,Dark,Apple or Silver

POWERED SUBWOOFER

SPECIFICATION

FREQUENCY RESPONSE CURVE

SPL(dB)

20 100 600

Frequency Response

Freq(Hz)

|Z|(ohms)

10 100 200

FILER FOR SPEAKER

spk-respond.FRQ

AMP

0.3mH/0.23Ohm

150µF

SPK

Freq(Hz)

POWERED SUBWOOFER

PARTS LIST

LED PCB ASSY

QTY

PART NO DESCRIPTION LOCATION

1 3700-4536-RG L-115W EGW/209EGW RED/GR LED301

1 3700-9528-0 LED DISP LR2x5-10B-YYB LED302

1 4701-100J-2 RCF 1/8W 10R 5% AT R330

1 4701-102J-2 RCF 1/8W 1K 5% AT R320

7 4701-103J-2 RCF 1/8W 10K 5% AT R311,312,313,314,315,321,

322

2 4701-203J-2 RCF 1/8W 20K 5% AT R317,318

5 4701-271J-2 RCF 1/8W 270R 5% AT R301,302,302,304,305

5 4701-331J-2 RCF 1/8W 330R 5% AT R306,307,308,309,310

2 4701-472J-2 RCF 1/8W 4.7K 5% AT R316,319

1 4816-043T-3 IR SENSOR PIC-26043TM2 IR301

10 4840-8060-2 DIODE 1N4148 NS D301,302,303,304,305,306,

307,308,309,310

2 4860-2250-5 TR 9012H MICRO Q307,310

8 4860-8720-5 TR 9013H Q301,302,303,304,305,306,

308,309

1 1725-731A-0000 PCB LED FR4 D/S 1OZ

SMPS PCB ASSY

QTY

PART NO DESCRIPTION LOCATION

8 150F-104M-N-FD CC 50V 0.1U 20% RLF C18,19,20,22,28,32,33,34

1 150N-101K-5-MHA CC 1KV 100PF 10% RL C7

2 150N-471K-5-MHA CC 1KV 470PF 10% RL C9,10

2 150T-152M-5-XO CC 400V 1500P 20% RL C3,4

2 150T-471M-5-RO CC 400V 470P +-20% RL C35,36

1 153H-102K-5-INA CM 100V 0.001UF 10% RL C23

2 153H-103J-5-KNA CM 100V 0.01UF 5% RL C25,27

1 153H-222K-5-INA CM 100V 0.0022U 10% C26

POWERED SUBWOOFER

PARTS LIST

SMPS PCB ASSY

CONTINUED

QTY

PART NO DESCRIPTION LOCATION

1 153H-472K-5-JNA CM 100V 0.0047UF 10% RL C24

2 153Z-334M-5-YUM CM 275V 0.33UF 20% RL C1,2

1 157F-107M-5-OW CE 50V 100uF 20% RL 8x12 C30

1 157F-107M-5-OWK CE 50V 100uF 20% RL 8x12 C31

1 157F-225M-5-IU CE 50V 2.2uF 20% RL 5x11 C29

2 157I-108M-5-5$K CE 63V 1000uF 20% RL 16X C11,12

2 157Q-477M-5-S9T CE 35V 470U 20% 10X20 C8,13

2 157R-567M-5-#$T CE 250V 560UF 20% RL 105 C5,6

1 1681-1000-A UL1007 AWG#20 BLACK GND

1 1806-2372-0 TT-9972 GATE DRIVER TRAN T1

1 1806-2380-0 CURRENT TRANSFORMER T4

1 1806-2437-0 TT-01001 EE-42 POWER T3

1 1806-2442-0 CHOKE O/P T131-26 L5

1 1806-2444-0 X-TRANSFORMER EI-28 T2

1 1806-3609-0 COMMON MODE EE-35B L1

1 1806-3707-0 CHOKE COMMON MODE PSW5K L3

8 1808-0670-0 FERRITE BEAD 26430000101 FB5,6,7,8,9,10,11,12

1 1808-9030-0 ARRESTER 230V DC 5KA M2P G1

6 1808-9080-0 FERR BEAD 43120203106 1- FB1 TO FB4, FB13,14

1 2101-1343-0 WAFER 2219S-03-E2 P=7.92 CN1

8 2950-3008-0020 SCREW B-TITE PH M3X 8 MM D8-D11, Q1-Q4

4 3100-8040-0 MICA T-400 8302 18X12.7M D8-D11

4 3100-8050-0 MICA T-400 T03P 25X20M T Q1-Q4

1 3131-5550-0 IC KA3842B SAMSUNG U3

8 4154-0841-0 INSULATION BUSHING D8-D11, Q1-Q4

5 4705-102J-2 RCF 1/4W 1K 5% AT R6,9,29,36,37

2 4705-103J-2 RCF 1/4W 10K 5% AT R24,26

2 4705-152J-2 RCF 1/4W 1.5K 5% AT R31,32

1 4705-204J-2 RCF 1/4W 200K 5% AT R23

POWERED SUBWOOFER

PARTS LIST

SMPS PCB ASSY

CONTINUED

QTY

PART NO DESCRIPTION LOCATION

1 4705-220J-2 RCF 1/4W 22R 5% AT R18

1 4705-241J-2 RCF 1/4W 240R 5% AT R19

1 4705-471J-2 RCF 1/4W 470R 5% AT R21

1 4705-821J-2 RCF 1/4W 820R 5% AT R22

2 4707-104J-2 RCF 1/2W 100K 5% AT R2,3

1 4707-474J-2 RCF 1/2W 470K 5% AT R1

1 4715-203A-1 RMF 1/4W 20K 1% AL R28

1 4715-243A-2 RMF 1/4W 24K 1% AT R30

3 4715-472A-1 RMF 1/4W 4.7K 1% AL R11,20,33

4 4715-51R1-2 RMF 1/4W 51.1R 1% AT R4,5,7,8

1 4719-101J-C-X RMF 2W 100R 5% ATS METAL R10

2 4719-470J-C-X RMF 2W 47R 5% ATS METAL R13,14

1 4756-1026-3-07 SVR B1K H3 VZ067TL7B TP1

4 4837-18V6-2 DZ 1/2W 18V TEMIC AT Z1,2,3,4

1 4837-30V6-2 DZ 1/2W 30V 5% TEMIC AT Z5

5 4840-0010-2 DIODE 1N4001 D13,14,15,16,17

5 4840-8060-2 DIODE 1N4148 NS D19,20,21,22,23

1 4840-8240-0 DIODE BR108 BRIDGE RECTI D1

4 4840-8520-2 RECTIFIER UF4003 GI AT D4,5,12,18

2 4840-8530-2 RECTIFIER UF4006 GI AT D2,3

4 4840-8860-1 DIODE 600V 15A T0220 D8,9,10,11

2 4853-9040-5 TR 2N3904 Q6,7

1 4860-2400-5 TR 2N3906 MICRO Q5

4 4860-8950-0 TR FET IRF840 (IR) Q1,2,3,4

1 5202-0001-0 NTC THERMISTER SCK057 NTC1

8 5400-9320-0 2617-4-B HEAT SINK Q1-Q4, D8-D11

1 7010-0150-0 CN ASSY UL1007 #20 L=120 JPW1

1 7010-0160-0 CN ASSY UL1007 #20 L=120 JPW2

1 7010-2352-0 WIRE CON ASSY 4P+2P+2P CN2

POWERED SUBWOOFER

PARTS LIST

SMPS PCB ASSY

CONTINUED

QTY

PART NO DESCRIPTION LOCATION

1 7010-2355-0 WIRE CON ASSY 4P L=500MM CN3

1 1725-542A-0003 SMPS PCB 94V0 REV: G

PRE AMP & POWER AMP PCB ASSY

QTY

PART NO DESCRIPTION LOCATION

1 150D-224K-J-BD CC 16V 0.22UF 10% 0805 C18

7 150D-334K-J-BD CC 16V 0.33UF 10% 0805 C39,40,41,42,191,192,193

4 150E-823K-J-BD CC 25V 0.082UF 10% 0805 C3,4,5,6

19 150F-101J-J-BD CC 50V 100pF 5% 0805 1.2 C7,8,9,10,13,14,15,20,31,

46,100,101,128,218,221, 222,630,631,633,

1 150F-102K-J-BD CC 50V 1000pF 10% 0805 1 C217

15 150F-104K-J-BD CC 50V 0.1uF 10% 0805 C11,12,51,110,112,503,603,

604,605,606,608,609,610, 901,902

1 150F-154K-J-BD CC 50V 0.15UF 10% 0805 C34

1 150F-223K-J-BD CC 50V 0.022U 10% 0805 C36

2 150F-333K-J-BD CC 50V 0.033U 10% 0805 C129,194

1 150F-334K-J-BD CC 50V 0.33UF 10% 0805 C190

3 150F-470J-J-BD CC 50V 47pF 5% 0805 1.2x C281,330,331

1 150F-471J-J-BD CC 50V 470pF 5% 0805 1.2 C502

2 150F-681K-J-BD CC 50V 680pF 10% 0805 1. C235,236

7 150F-683K-J-BDS CC 50V 0.068UF 10% X7R C19,32,33,37,38,44,45

2 150F-822K-P-AC CC 50V 8200P 10% 0603 C21,22

7 153H-104K-5-PS CM 100V 0.1UF 10% RL C203,204,207,208,262,

263,267

1 153I-224K-9-NOA CM 63V 0.22UF 10% RB C239

4 157D-476M-H-IU CE 16V 47U 20% RLR 5x11 C113,266,613,614

2 157E-477M-5-SXE CE 25V 470UF 20% RL C260,261

POWERED SUBWOOFER

PARTS LIST

PRE AMP & POWER AMP PCB ASSY

CONTINUED

QTY

PART NO DESCRIPTION LOCATION

1 157F-105M-5-IU CE 50V 1uF 20% RL 5x11 C632

2 157F-106M-K-IUI CE 50V 10UF 20% RLT 5X11 C16,106

7 157F-107M-K-OW CE 50V 100U 20% RLT 8X12 C111,240,264,265,269,

501,504

7 157F-225M-K-IUI CE 50V 2.2U 20% RLT C1,2,25,109,234,280,601

1 157F-226M-5-IU CE 50V 22UF 20% RL 5X11 C634

1 157F-474M-5-IU CE 50V 0.47uF 20% RL C242

2 157F-476M-5-OWK CE 50V 47uF 20% RL 8x12 C205,206

2 157F-476M-K-LUI CE 50V 47UF 20% RLT C219,241

2 157I-107M-K-SX CE 63V 100U 20% RLT 10x1 C237,238

1 157Q-476M-5-LUA CE 35V 47U 20% RL 6.5X11 C49

7 1681-0000-A UL1007 AWG#18 BLACK C1-C2,C903,D1-D2,E1-E2

2 1681-3020-A UL1007 AWG#24 RED F1-F2

4 1681-4000-A UL1007 AWG#26 BLACK A1-A2,B1-B2

1 1806-2374-0 TT-9974 TOROIDAL CHOKE T L301

1 1806-2393-0 TT-9904 LE 1012A 1X12TX6 L201

1 2101-1380-0 HEADER 4P P=5MM VERTICAL CN201

1 2101-9120-0 JM24182-2P WAFER CN206

1 2101-9130-0 JM24182-4P WAFER CN202

1 2101-9320-0 WAFER JM24182-11P CN301

1 2101-9790-0 4RCA JACK HSP-204V-03 GP RCA1

12113-1997-0 JACK 3.5MM RI

4 2601-2608-0601 FIBRE WASHER M2.6 0.8T Q202,204,U205,U206

1 2703-0150-1 CR4.00MHE,CSTLS4M00G55-B XTAL201

4 2954-2606-0000 SCREWS BT 2.6X6 Q202,204,U205,U206

4 2954-3008-3000 T3X8MM SELF TAPPING Q202,204,U205,U206

2 3130-2020-2 IC 7805 REG 5V U207,505

1 3130-2520-2 IC 7812H 12V REG, T0220F U205

1 3130-3550-0 IC TA7317P U208

POWERED SUBWOOFER

PARTS LIST

PRE AMP & POWER AMP PCB ASSY

CONTINUED

QTY

PART NO DESCRIPTION LOCATION

1 3130-3800-0 IC UPC79M12HF REGULATOR U206

17 3130-8020-0 IC TL072 DUAL J-FET U1,2,3,5,6,7,8,9,10,11,12,

16,204,303,304,501,502

1 3131-6160-0 IC 7809 1A 3PIN POSITIVE U208

1 3131-6940-0 IC LM393M (SMD) U506

1 3131-7640-1 IC KS86P4208 SM SAMSUNG U301

1 3131-7740-0 EEPROM AT24C02-10PI U302

2 3132-1421-0 IC DS1844-100 SMD U13,14

1 3132-2671-0 IC PT2259S SMD SO-8 U503

1 3700-1530-R LED SC 3.1X3.8 L0.4RD LED501

4 4132-1551-0 TERMINAL OUT PUT GND1,2,3,SPK

1 4500-0500-0 RELAY DPDT 5V 40mA RL301

1 4500-8090-1 RELAY RUUH-SH-124D 15A PLY1

2 4701-101J-2 RCF 1/8W 100R 5% AT R110,111

1 4705-122J-2 RCF 1/4W 1.2K 5% AT R660

1 4711-122A-2 RMF 1/8W 1.2K 1% AT TP402

1 4711-183A-2 RMF 1/8W 18K 1% AT TP402

4 4718-100J-C-X RMF 1W 10R 5% ATS METAL R234,235,241,242

1 4718-392C-L RMF 1W 3.9K 2% AF R904

1 4719-222J-1-X RMF 2W 2.2K 5% AL METAL R255

6 4720-101J-J RMG 1/10W 100R 5% 0805 R236,237,238,251,256,260

7 4720-102J-J RMG 1/10W 1K 5% 0805 R104,105,226,511,603,

622,625

32 4720-103J-J RMG 1/10W 10K 5% 0805 R2,4,5,6,7,8,9,10,11,12,24,

57,61,223,224,245,253, 501, 502,503,504,505,507,508, 509,530,531,601,604,607, 626,629

14 4720-104J-J RMG 1/10W 100K 5% 0805 R60,63,65,69,71,74,83,86,

88,243,246,605,628,902

1 4720-105J-J RMG 1/10W 1M 5% 0805 R606

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