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KEF PSW3500 Service Manual
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KEF PSW3500 Service Manual

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SERVICE MANUAL
CONTENTS
SPECIFICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3
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
POWERED SUBWOOFER
Date: Jan.17, 2005

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Summary of Contents for KEF PSW3500

  • Page 1: Table Of Contents

    SERVICE MANUAL POWERED SUBWOOFER CONTENTS SPECIFICATION ................2-3 PARTS LIST: LED INDICATORS PCB ASSEMBLY .

  • Page 2: Specification

    POWERED SUBWOOFER SPECIFICATION PSW3500 SPEAKER SPECIFICATIONS Frequency Response 20 Hz - 500 Hz Sensitivity 89±2 dB Power Handing 200~400 W Weight 8.5Kg 22±4 Hz Impedance 4±20% Ohm Voice Coil DCR 3.9±5% Ohm Main Magnet ø145*ø75*17mm Magnet Material Magnetic Shielding PSW3500 SYSTEM SPECIFICATIONS Type Close box downward fi...
  • Page 3 POWERED SUBWOOFER SPECIFICATION FREQUENCY RESPONSE CURVE Frequency Response SPL(dB) Freq(Hz) Frequency Response |Z|(ohms) Freq(Hz) spk-respond.FRQ FILER FOR SPEAKER 0.3mH/0.23Ohm 150µF...

  • Page 4: Parts List

    POWERED SUBWOOFER PARTS LIST LED PCB ASSY QTY PART NO DESCRIPTION LOCATION 3700-4536-RG L-115W EGW/209EGW RED/GR LED301 3700-9528-0 LED DISP LR2x5-10B-YYB LED302 4701-100J-2 RCF 1/8W 10R 5% AT R330 4701-102J-2 RCF 1/8W 1K 5% AT R320 4701-103J-2 RCF 1/8W 10K 5% AT R311,312,313,314,315,321, 4701-203J-2 RCF 1/8W 20K 5% AT...
  • Page 5 POWERED SUBWOOFER PARTS LIST SMPS PCB ASSY CONTINUED QTY PART NO DESCRIPTION LOCATION 153H-472K-5-JNA CM 100V 0.0047UF 10% RL 153Z-334M-5-YUM CM 275V 0.33UF 20% RL C1,2 157F-107M-5-OW CE 50V 100uF 20% RL 8x12 157F-107M-5-OWK CE 50V 100uF 20% RL 8x12 157F-225M-5-IU CE 50V 2.2uF 20% RL 5x11 157I-108M-5-5$K...
  • Page 6 POWERED SUBWOOFER PARTS LIST SMPS PCB ASSY CONTINUED QTY PART NO DESCRIPTION LOCATION 4705-220J-2 RCF 1/4W 22R 5% AT 4705-241J-2 RCF 1/4W 240R 5% AT 4705-471J-2 RCF 1/4W 470R 5% AT 4705-821J-2 RCF 1/4W 820R 5% AT 4707-104J-2 RCF 1/2W 100K 5% AT R2,3 4707-474J-2 RCF 1/2W 470K 5% AT...

  • Page 7: Pre Amp & Power Amp Pcb Assembly

    POWERED SUBWOOFER PARTS LIST SMPS PCB ASSY CONTINUED QTY PART NO DESCRIPTION LOCATION 7010-2355-0 WIRE CON ASSY 4P L=500MM 1725-542A-0003 SMPS PCB 94V0 REV: G PRE AMP & POWER AMP PCB ASSY QTY PART NO DESCRIPTION LOCATION 150D-224K-J-BD CC 16V 0.22UF 10% 0805 150D-334K-J-BD CC 16V 0.33UF 10% 0805 C39,40,41,42,191,192,193...
  • Page 8 POWERED SUBWOOFER PARTS LIST PRE AMP & POWER AMP PCB ASSY CONTINUED QTY PART NO DESCRIPTION LOCATION 157F-105M-5-IU CE 50V 1uF 20% RL 5x11 C632 157F-106M-K-IUI CE 50V 10UF 20% RLT 5X11 C16,106 157F-107M-K-OW CE 50V 100U 20% RLT 8X12 C111,240,264,265,269, 501,504 157F-225M-K-IUI...
  • Page 9 POWERED SUBWOOFER PARTS LIST PRE AMP & POWER AMP PCB ASSY CONTINUED QTY PART NO DESCRIPTION LOCATION 3130-3800-0 IC UPC79M12HF REGULATOR U206 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 3131-6160-0 IC 7809 1A 3PIN POSITIVE U208 3131-6940-0 IC LM393M (SMD) U506 3131-7640-1 IC KS86P4208 SM SAMSUNG...
  • Page 10 POWERED SUBWOOFER PARTS LIST PRE AMP & POWER AMP PCB ASSY CONTINUED QTY PART NO DESCRIPTION LOCATION 4720-122J-J RMG 1/10W 1.2K 5% 0805 R612,901 4720-123J-J RMG 1/10W 12K 5% 0805 R67,77,79,109,233 4720-124J-J RMG 1/10W 120K 5% 0805 R107 4720-125J-J RMG 1/10W 1.2M 5% 0805 R621,624 4720-153J-J RMG 1/10W 15K 5% 0805...
  • Page 11 POWERED SUBWOOFER PARTS LIST PRE AMP & POWER AMP PCB ASSY CONTINUED QTY PART NO DESCRIPTION LOCATION 4720-563J-J RMG 1/10W 56K 5% 0805 R244,247,254 4720-682J-J RMG 1/10W 6.8K 5% 0805 R85,227 4720-752J-J RMG 1/10W 7.5K 5% 0805 R58,70,84 4720-753J-J RMG 1/10W 75K 5% 0805 R103 4720-822J-J RMG 1/10W 8.2K 5% 0805...

  • Page 12: Casing Smps Assembly

    POWERED SUBWOOFER PARTS LIST PRE AMP & POWER AMP PCB ASSY CONTINUED QTY PART NO DESCRIPTION LOCATION 8910-0196-0 THERMISTOR NTH4G 10K 1% 1725-730A-0001 PCB POWER-AMP FR4 D/S1OZ CASING SMPS ASSY QTY PART NO DESCRIPTION LOCATION 1403-6680-0 SWITCH POWER TOP COVER TOP COVER 1403-6690-0 SWITCH POWER BOTTOM...
  • Page 13 POWERED SUBWOOFER PARTS LIST CASING SMPS ASSY CONTINUED QTY PART NO DESCRIPTION LOCATION 2640-4030-0704 NUT HEX M4 2640-4030-0704 NUT HEX M4 2900-3008-3000 SCREW M3x8 PM BZ 2900-3008-3000 SCREW M3x8 PM BZ 2900-3008-3000 SCREW M3x8 PM BZ TOP COVER 2900-3010-3000 SCREW PH M3X 10 MM BZ CR 2900-3010-3000 SCREW PH M3X 10 MM BZ CR IEC1...

  • Page 14: Speaker Assembly

    WH 145*54.4*8.6M5 105.3 3300-9690-0 CHASSIS FOR PSW3500 SUB 3800-5530-0 VC 50.95EISV 4104-4871-1 MAGNET 145*75*17 (C) 4124-0070-0 TERMINAL 0.5*205 4159-0780-0 POLE TIP FOR PSW3500 12” 4159-0810-0 SHORT RING 55*74*33.5 4200-5160-0 DCAP D117*21.5 PP COATED 4200-9021-0 SURROUND/CONE FOR 7010-4520-0 F.WIRE 24WW 8700-1960-0 DPR 175*50.8*4.0 D0.7...
  • Page 15 POWERED SUBWOOFER PARTS LIST SPAEKER ASSY CONTINUED QTY PART NO DESCRIPTION LOCATION OTHER-FCCH0C-EU OTHER PARTS FOR PSW3500 1419-0260-0 CABINET FOR PSW3500 BK 1419-0260-1 CABINET FOR PSW3500 BK 1725-331A-0000 PCB FOR Q1/CODA CENTRE 1806-2710-0 IRON CORE 3.0MH 0.23OHM 2640-4030-0704 NUT HEX M4...
  • Page 16 POWERED SUBWOOFER PARTS LIST SPAEKER ASSY CONTINUED QTY PART NO DESCRIPTION LOCATION DUM-1806-2710-0 DUMMY 1806-2710-0 1403-5700-0 P-CORE 1403-5710-0 END CHEEK FOR CORE FCEJ0C ATTENUATOR FOR PSW 1660-0740-0 SHRINKAGE TUBE ID=2 1660-0870-0 SHRINKAGE TUBE ID=4MM UL 4124-0100-0 TERMINAL BLOCK FOR CI50 4124-0290-0 RCA PLUG FOR PSW SERIES 4124-0340-0...

  • Page 17: Packing Assembly

    PACKING ASSY QTY PART NO DESCRIPTION LOCATION 8912-0047-0 IR REMOTE CONTROL 8912-0048-1 IR EXTENSION MODULE 145B-1650-0 CARTON BOX FOR PSW3500 145B-1660-0 C.PAD A FOR PSW3500 145B-1670-0 C.PAD B FOR PSW3500 1490-8513-0 PE FOAM FOR PSW3500 1497-1932-0 POLYBAG 04x5x9” w/PE-LD 1497-4012-0 P.BAG 2.5’*3’*0.03...

  • Page 18: Block Diagram

    POWERED SUBWOOFER BLOCK DIAGRAM...

  • Page 19: Schematic Diagrams

    POWERED SUBWOOFER SCHEMATICS DIAGRAMS CN2A +15V R1 20K Pre Amp R/OUT C269 C264 TL072 3PIN 2u2/50V -15V +15V 47u/16V 47u/16V +15V -15V 120Hz/12dB TL072 L/OUT -15V 250HZ LPF /12dB SHELF EQ BASS BOOST 40HZ +6dB TL072 2u2/50V 120Hz/12dB R108 R100 R101 LOW PASS FILTER 100P...
  • Page 20 POWERED SUBWOOFER SCHEMATICS DIAGRAMS +12V C266 D211 C267 1N4001 47u/16V Text 100n Power Amp R503 R504 +12V C501 -12V Limited 100u35V C264 C265 100u/16V D501 100u/16V 15V/OUT U501A R501 +12V 7805 U207 TL072 +Vcc R502 U205 470u/16V R505 100n 7812 AF/IN C263 C260...
  • Page 21 POWERED SUBWOOFER SCHEMATICS DIAGRAMS SMPS BR108 UF4003 L7812CV FB13 +12V TT-01001 470u/35V 100n 47u/50V 100n 560u/250V 100K 1/2W TT-9972 332 275Vac 332 275Vac 230V 115V IRF840 IRF840 470uF/35V 47u/50V 100n UF4003 100n CON4 M372-499-100-Z FB14 560u/250V -12V 470p 1KV L7912CV +55V 100K 1/2W TT-9980...
  • Page 22 POWERED SUBWOOFER SCHEMATICS DIAGRAMS R316 R314 C318 C317 100P 100P -15V U303A D301 R313 U303B 1N4148 R315 BA4560 D302 47UF/16V 1N4148 BA4560 C316 +15V U502B R406 R401 1.8K 3.9K C330 C331 LM193 R407 3.9K R405 TO402 20KB U301 R303 C301 P0.2/SI/SCL 470u/16V SW202...

  • Page 23: Pcb Layout

    POWERED SUBWOOFER PCB LAYOUT PreAMP PCB PreAMP PCB top side bottom side...
  • Page 24 POWERED SUBWOOFER PCB LAYOUT PowerAMP PCB PowerAMP PCB top side bottom side...
  • Page 25 POWERED SUBWOOFER PCB LAYOUT SMPS PCB LED PCB top side LED PCB top side...

  • Page 26: Exploded View Diagrams

    ACOUSTIC FOAM B FOR PSW4000 4149-0231-0 CAB FOR PSW3500 MAPLE 1419-0262-0 ABS MOULDING FOR PSW3500 BLACK 4154-3171-0 CAB FOR PSW3500 SILVER 1419-0263-0 ABS MOULDING FOR PSW3500 SILVER 4154-3172-0 ELE-AMP AMP FCCH0C-EU EVA GASKET 5*500 4153-3331-0 DRIVER FOR PSW3500 8900-6400-0 PCB FOR Q1/CODA CENTRE...
  • Page 27 SHORTING RING 4159-0810-0 POLE TIP 48.7*36 4159-0780-0 WH 145*54.4*8.6M5 105.3 3300-6770-0 S/T SCREW 03X6(YEL) 2940-3006-0000 TERMINAL 0.5*205 4124-0070-0 CHASSIS FOR PSW3500 SUB 3300-9690-0 SCREW M5*9 2901-5009-0000 VC50 9ASV3.5*0.2*0.92*64 3800-5530-0 DPR 175*50.8*4.0 D0.7 8700-1960-0 SURROUND/CONE FOR PSW3500 SUB 4200-9020-0 DCAP D117*21.5 PP COATED...
  • Page 28 POWERED SUBWOOFER EXPLODED VIEW DIAGRAMS Packing Exploded View FCCH0C-EU/US/UK DESCRIPTION PARTS NO. INSTALLATION MANUAL FOR 4301-5280-0 W.CARD FOR KEF (1 YEAR) 4301-6037-1 P.BAG 10’*14’ W/ES GREEN 1497-4122-0 MANUAL FOR CI SERIES 4301-5242-0 IR REMOTE CONTROL 8912-0047-0 IR EXTENSION MODULE 8912-0048-0...

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