Pioneer S-W1EX Service Manual
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Pioneer S-W1EX Service Manual

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POWERED SUBWOOFER
S-W1EX
THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).
Model
Type
S-W1EX
LFXTW
S-W1EX
MLTXTW
For details, refer to "Important Check Points for Good Servicing".
PIONEER CORPORATION
PIONEER ELECTRONICS (USA) INC. P.O. Box 1760, Long Beach, CA 90801-1760, U.S.A.
PIONEER EUROPE NV Haven 1087, Keetberglaan 1, 9120 Melsele, Belgium
PIONEER ELECTRONICS ASIACENTRE PTE. LTD. 253 Alexandra Road, #04-01, Singapore 159936
PIONEER CORPORATION 2006
Porew Requirement
AC 110V
AC 220-230V
4-1, Meguro 1-chome, Meguro-ku, Tokyo 153-8654, Japan
S-W1EX
T-ZZS JAN. 2006 printed in Japan
ORDER NO.
RRV3274
Remarks

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  • Page 1 PIONEER CORPORATION 4-1, Meguro 1-chome, Meguro-ku, Tokyo 153-8654, Japan PIONEER ELECTRONICS (USA) INC. P.O. Box 1760, Long Beach, CA 90801-1760, U.S.A. PIONEER EUROPE NV Haven 1087, Keetberglaan 1, 9120 Melsele, Belgium PIONEER ELECTRONICS ASIACENTRE PTE. LTD. 253 Alexandra Road, #04-01, Singapore 159936 PIONEER CORPORATION 2006 T-ZZS JAN.

  • Page 2: Safety Information

    For the latest information, always consult the current PIONEER Service Manual. A subscription to, or additional copies Also test with plug reversed of, PIONEER Service Manual may be obtained at a (Using AC adapter Earth nominal charge from PIONEER. plug as required)
  • Page 3 To protect products from damages or failures during transit, the shipping mode should be set or the shipping screws should be installed before shipment. Please be sure to follow this method especially if it is specified in this manual. S-W1EX...

  • Page 4: Table Of Contents

    7.2 SMPS BLOCK TROUBLE SHOOTING ....................42 7.3 AMP BLOCK TROUBLE SHOOTING ...................... 44 7.4 DESCRIPTION OF SMPS BLOCK ......................45 7.5 DESCRIPTION OF AMP BLOCK......................47 7.6 CAUTIONS ON DISASSEMBLY AND ASSEMBLY .................. 48 8. PANEL FACILITIES ............................51 S-W1EX...

  • Page 5: Specifications

    Weight (without package) ........34.5 kg is a trademark placed on a product with Power Requirements (LFXTW) 110V~, 50/60 Hz Pioneer's Phase Control Technology. Power Requirements (MLTXTW) 220 - 230 V~, 50/60 Hz The Technology enables high-grade 5.1ch Power Consumption ..........56 W with no delay in the bass area.

  • Page 6: Exploded Views And Parts List

    Screws adjacent to mark on product are used for disassembly. For the applying amount of lubricants or glue, follow the instructions in this manual. (In the case of no amount instructions, apply as you think it appropriate.) 2.1 PACKING Tape Tape S-W1EX...
  • Page 7 SHL6011 Polyethylene Bag SHL1259 Polyethylene Bag SHL6012 Bottom Foam Protector SHA6078 Top Foam Protector SHA6079 (2) CONTRAST TABLE S-W1EX/MLTXTW and /LFXTW types are constracted the same except for the following: S-W1EX S-W1EX Mark Description /LFXTW /MLTXTW Accessory Set SEA6054 SEA6053 >...

  • Page 8: Exterior Section

    2.2 EXTERIOR SECTION Glue 19 20 • Door Section S-W1EX...
  • Page 9 FRNK-430 Gasket SEC1843 NSP 24 2..Iron Axis FRNH-038 NSP 25 2..Iron Bracket (L) FRNH-039 (2) CONTRAST TABLE S-W1EX/MLTXTW and /LFXTW types are constracted the same except for the following: S-W1EX S-W1EX Mark Description /LFXTW /MLTXTW Amplifier Assy AXW7007 AXW7008 S-W1EX...

  • Page 10: Speaker Section

    2.3 SPEAKER SECTION Styling S-W1EX...
  • Page 11 NSP 3 Acoustic Absorbent FRMV-120 NSP 4 Acoustic Absorbent SMT1239 Speaker unit A30IR14-51C Passive Radiator DC-30B Gasket SEC1832 Grille Assy SMG6100 NSP 9 Logo FRAM-048 Grille Assy SMG6099 Catcher SLH6012 Screw SBA6056 Gasket SEC1839 NSP 14 Wire Tie 90mm SEP1003 S-W1EX...

  • Page 12: Amplifier Assy

    2.4 AMPLIFIER ASSY S-W1EX...
  • Page 13 Heat Sink W7 ANH7173 Screw PMZ30P060FCC NSP 26 Amp H/Sink W7 ANH7177 • • • • • • (2) CONTRAST TABLE S-W1EX/MLTXTW and /LFXTW types are constracted the same except for the following: S-W1EX S-W1EX Mark Description /LFXTW /MLTXTW SMPS ASSY AWU8163 AWU8164 >...

  • Page 14: Schematic Diagram

    VA-12V 51048-0600 ADX7447- ASSY (AWU8180) MODE SW AC DET CN3102 AKM1293 52151-0310 ASSY CN8102 51048-0300 (AWU8183) GREEN POWER LED GREEN B4P7S-VH AC_L1 AC_L2 POWER SW AC_N1 AC_N2 POWER SW ASSY POWERED SUB WOOFER AMP PART POWER SW ASSY (AWU8167) S-W1EX...
  • Page 15 ADX7445- REPLACE WITH SAME TYPE AND RATINGS OF FUSE. CN32 B7B-PH-K-S VA+12V GNDR VA-12V PRIMARY SECONDARY LIVE NEUTRAL AC DET AC INLET AKP7197- SMPS ASSY LIVE (AWU8163: LF) NEUTRAL (AWU8164: MLT) B2P3-VH FERRITE CORE DTH1158- B4P7-VH ADX7444- POWER CODE S-W1EX...

  • Page 16: Input, Control, Mode And Led Assys

    CTF1488- -T R3034 680/2W CHASSIS C3031 1000p/100V ACG7050- -T SPEAKER TERMINAL CHASSIS INPUT ASSY (AWU8173) NOTES ALL CAPACITORS ARE IN µ F ALL RESISTORS ARE IN Ω UNLESS OTHERWISE SPECIFIED 1/16W(CHIP) p :CCSQCH: pF :CEAT :-TS (OTHER :CKSQYB) LF RS*LMF S-W1EX...
  • Page 17 SIG2 SIG3 GNDD GNDD CN3104 51048-0600 CONTROL ASSY (AWU8177) J3201 D20PYY0605E PCB BINDER RSG1028 S3201 VEF1040- SIG1 SIG2 52151-0310 CN8102 CN8101 SIG3 51048-0300 D8101 Power on GREEN GREEN SLR-343MC(NPQ)-T J8102 D20PYY0310E LED ASSY CN3201 51048-0600 (AWU8183) MODE ASSY (AWU8180) S-W1EX...

  • Page 18: D Amp Assy

    D302 Q551 STBY STBY COMPRESSOR DETECTOR STBY SOFT CLIP STBY IC302 NJM4558MD C372 10/50 R373 Reference Level:29Vrms/OUTPUT SIGNAL(100HzSIN WAVE) D372 The mark found on some component parts should be replaced with same parts (safety regulation authorized) of identical designation. S-W1EX...
  • Page 19 : RN1/16SE****D (**** VALUE) Q501 R501 1/4W D502 R504 Q502 2SA1576A(RS) AC ON SW NOTES ALL CAPACITORS ARE IN µ F ALL RESISTORS ARE IN Ω UNLESS OTHERWISE SPECIFIED 1/16W(CHIP) :CEAT p :CCSQCH: pF :-TS (OTHER :CKSQYB) LF RS*LMF S-W1EX...

  • Page 20: Power Sw And Smps Assys

    AWU8163 ACG7053-(3300pF) ATF7032- /MLT AWU8164 ACG7055-(680pF) ATF7031- MODEL ASSY No. AWU8163 ACH7214- ACH7214- /MLT AWU8164 ACH7221- ACN7140- • NOTE FOR FUSE REPLACEMENT FOR CONTINUED PROTECTION AGAINST RISK OF FIRE. CAUTION - REPLACE WITH SAME TYPE AND RATINGS OF FUSE. S-W1EX...
  • Page 21 L3 ATH7013- STBY 220pF/100V AC DET R8 680 CQHA221J2A-T EK06 IC33 NJM79M12FA AK03 EK06 ACG7047- 2200pF/AC250V 2.2uF/50V CEANP2R2M50-T Notes ALL REGISTER IN Ω CAUTION!! RD1/4PU***J Take care to the marking line when CAPACITOR servicing. It charges more than 500V. CEHAT S-W1EX...
  • Page 22 S-W1EX...

  • Page 23: Pcb Connection Diagram

    Symbol In PCB Symbol In Schematic Part Name Diagrams Diagrams C E B Capacitor Connector Transistor B C E SIDE A Transistor with resistor B C E Field effect SIDE B P.C.Board Chip Part transistor Resistor array 3-terminal regulator S-W1EX...

  • Page 24: Input Assy

    4.1 INPUT ASSY SIDE A SIDE A INPUT ASSY R3032 R3034 C3033 R3033 R3031 R3035 C3011 C3008 -12V GNDA C3014 +12V C3007 C3013 C3017 FR4 P CN3101 KN1948 CN3001 (ANP7496-B) S-W1EX...
  • Page 25 INPUT ASSY 1 9 0 1 8 0 FR4 P 1 7 0 1 6 0 1 5 0 1 4 0 1 3 0 1 2 0 1 1 0 1 0 0 R3003 R3002 C3001 R3004 R3015 (ANP7496-B) S-W1EX...

  • Page 26: Control, Mode And Led Assys

    C3101 CN32 C3130 CN3102 C3133 C3135 -12V VR3101 GNDR CN3104 +12V (ANP7496-B) CN3104 CN3201 MODE ASSY CN3201 CB BINDER MODE ASSY FR4 P CN8101 (ANP7496-B) CN8101 CN8102 LED ASSY CN8102 LED ASSY (ANP7496-B) B C D B C D S-W1EX...
  • Page 27 SIDE B SIDE B CONTROL ASSY FR4 P CN3104 (ANP7496-B) CN3201 MODE ASSY CN3201 FR4 P MODE ASSY CN8101 CN8101 (ANP7496-B) CN8102 LED ASSY CN8102 LED ASSY AWU8183 AWU8184 (ANP7496-B) B C D B C D S-W1EX...

  • Page 28: D Amp Assy

    D451 C442 IC501 L421 L441 Bond R475 Q502 Q501 R476 Q504 R506 R507 Q503 C503 C501 Q506 NO. SIDE TOP SIDE BOND Bond FERRITE CN481 C432 C452 RY501 Speaker Bond C481 KN493 C552 C553 C483 C554 Bond L481 (ANP7496-B) S-W1EX...
  • Page 29 SIDE B SIDE B D AMP ASSY CN301 CN471 CN301 R304 FR4 P R305 R372 R371 R404 C323 C473 Q431 Q421 Q441 Q451 C486 (ANP7496-B) S-W1EX...

  • Page 30: Power Sw And Smps Assys

    4.4 POWER SW and SMPS ASSYS SIDE A AC IN LIVE NEUTRAL PRIMARY 680uF/350V 390uF/400V DISCHARGE POINT 680uF W104 W103 680uF/200V 100-120V POWER SW ASSY ONLY CMKM-C2X HIGH POWER W106 W150 W105 AWU8163- AWU8167- W151 ASSY AWU8164- W152 AWU8165- W153 AWU8166- (ANP7495-C) KN12 S-W1EX...
  • Page 31 WORD SURFACE 1000/35 680uF/200V W120 AC DET UN+12V 1000/35 -12V +12V PRINTING SIDE 680uF/200V CN3102 HIGH VOLTAGE AREA TOP SIDE W111 BOND W110 CN471 W106 +47V +47V W123 W105 +47V W122 DISCHARGE POINT 3W-100ohm PRINTING SIDE HEAT SINK (ANP7495-C) S-W1EX...
  • Page 32 SIDE B SMPS ASSY CMKM-C2X UN+12V AC DET -12V +12V HIGH CN32 +47V +47V CN31 +47V S-W1EX...
  • Page 33 SIDE B LIVE NEUTRAL PRIMARY 100-120V PRIMARY ONLY CMKM-C2X HIGH VOLTAGE POWER AREA ASSY AWU8167- (ANP7495-C) (ANP7495-C) S-W1EX...

  • Page 34: Pcb Parts List

    R 3012(B,51 ,47 ) RS1/16S0R0J JA 3001(A,36 ,88 ) PIN JACK(1P)(SW)(AU) AKB7166 R 3013(B,49 ,53 ) RS1/16S683J JA 3002(A,36 ,74 ) JACK VKB1072 S 3001(A,40 ,41 ) SLIDE SWITCH DSH1025 R 3014(B,53 ,53 ) RS1/16S101J CN3001(A,74 ,21 ) CONNECTOR AKM1293 S-W1EX...
  • Page 35 R 3113(B,109 ,172 ) RS1/16S0R0J D 8101(A,93 ,21 ) LED(GREEN) SLR-343MC R 3114(B,107 ,172 ) RS1/16S221J J 8102 JUMPER WIRE D20PYY0310E R 3115(B,104 ,172 ) RS1/16S224J CN8102 3P CABLE HOLDER 51048-0300 R 3116(B,112 ,172 ) RS1/16S0R0J R 3131(A,107 ,124 ) RS1/16S223J S-W1EX...
  • Page 36 CN481 (A,223 ,28 ) CONNECTOR B2PS-VH R 493 (A,148 ,129 ) METAL OXIDE RESISTOR RS3LMFR22J R 494 (A,155 ,129 ) METAL OXIDE RESISTOR RS3LMFR22J R 501 (B,227 ,66 ) RS1/16S102J RESISTORS R 301 (B,200 ,171 ) RS1/16S102J R 502 (B,224 ,66 ) RS1/16S0R0J S-W1EX...
  • Page 37 C 471 (A,193 ,123 ) CKSQYB105K16 > (A,55 ,145 ) LINE FILTER ATF7032 C 472 (A,194 ,73 ) CKSQYB105K16 > (A,121 ,47 ) FERRITE BEADS ATH7013 C 473 (B,198 ,119 ) CKSQYB104K25 > (A,84 ,175 ) FUSE CLIP AKR7001 S-W1EX...
  • Page 38 C 38 (A,222 ,78 ) CEHAT100M50 C 40 (A,207 ,117 ) ELECTROLYTIC (1000/35) ACH7215 C 41 (A,215 ,132 ) CEHAT100M50 C 42 (A,227 ,117 ) CEHAT100M50 C 44 (A,230 ,142 ) CEANP2R2M50 C 46 (A,207 ,101 ) ELECTROLYTIC (1000/35) ACH7215 S-W1EX...

  • Page 39: Adjustment

    PROCEDURE 1. Touch the instrument probe to naked terminal or land (V1, V2) as picture 1, 2, 3. 2. Turn on the unit and wait about 1 minute. 3. Rotate VR321 and adjust to DC 0 V ± 20mV. S-W1EX...

  • Page 40: General Information

    When D AMP ASSY AWU8170 is exchanged * Since a driver becomes middle point potential (DC23.5V) when using a metaled driver, Does not short-circuit with a chassis or you don't receive an electric shock. As long as it takes care, a metal driver may adjust. S-W1EX...
  • Page 41 SMPS ASSY 4. High Voltage Area 5.DISCHARGE POINT:D2(A-K),CN31(1-2) D2: Use Cell Hole 6.TH1 Hight Voltage Area Hight Voltage Area CN31 CN31 S-W1EX...

  • Page 42: Smps Block Trouble Shooting

    Check whether or not there is a solder -12V O.K and +12V NG bridge, and replace D32, D34, and IC32 with new ones. If the failure in the power-supply section is not corrected even after replacement of corresponding parts, go to 3. S-W1EX...
  • Page 43 Replace IC1, Q1, D7, D5, D8, and D9 with new one. In a case where the voltage waveform at both ends of C17 is a sawtooth waveform even after all the above corrections have been made. It is impossible to repair the ASSY. Replace the ASSY with new one. S-W1EX...

  • Page 44: Amp Block Trouble Shooting

    Everything is all right, except for the relay Accidental Replace Q506 and Q507 with new ones. not being turned on. failure mode Although the VOL is minimum, there is Solder shorting of VR3141 of the output from CN481. CONTROL Assy. S-W1EX...

  • Page 45: Description Of Smps Block

    7.4 DESCRIPTION OF SMPS BLOCK S-W1EX...
  • Page 46 10. If there is any abnormality with the power, at the Vin terminal of IC1 a sawtooth waveform at a frequency of about 0.1 sec/dev. is observed as the voltage waveform. 11. When supply of AC power is stopped, the starting voltage is stopped to be applied to IC1, switching is stopped, and the power is shut off. S-W1EX...

  • Page 47: Description Of Amp Block

    7.5 DESCRIPTION OF AMP BLOCK S-W1EX...

  • Page 48: Cautions On Disassembly And Assembly

    Remove the whole marking screw. (There is no mark on the unit.) 1. Bottom Plate screw position • BBZ30P080FTC (11) : • ABA7098 (6) : Front Panel side Rear Panel side 2. AMP heat-sink holding screw position • BBZ30P180FTC (1) S-W1EX...
  • Page 49 2 Adjust tentatively the lead of of D31 and IC1 to the PCB hole. When it is unable to insert the lead by mimatching position, loosen the screw. And then adjust the position of IC1 (D31) and screw again. S-W1EX...
  • Page 50 4 Confirm that there is no gap between the heat-sink and earth plate. Confirm no gap between the heat-sink and earth plate. 5 Solder the lead on the above state. 6 Confirm 3 and 4 again after soldering. S-W1EX...

  • Page 51: Panel Facilities

    * When set to BYPASS, the audio signal is routed Recommended for sources that require strong bass. CROSSOVER directly to the woofer unit, bypassing the S-W1EX Music mode Frequency response amplifier's filter. Bypass Volume knob (VOLUME) Sets the subwoofer volume.

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