YORKVILLE LS720P Service Manual
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YORKVILLE LS720P Service Manual

YORKVILLE LS720P Service Manual

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Download this manual See also: Owner's Manual
SERVICE MANUAL
MODEL TYPE: YS1055
LS720P
WEB ACCESS: http://www.yorkville.com
WORLD HEADQUARTERS
CANADA
U.S.A.
Yorkville Sound
Yorkville Sound Inc.
550 Granite Court
4625 Witmer Industrial Estate
Pickering, Ontario
Niagara Falls, New York
L1W-3Y8 CANADA
14305 USA
Voice: (905) 837-8481
Voice: (716) 297-2920
Fax: (905) 837-8746
Fax: (716) 297-3689
Quality and Innovation Since 1963
Printed in Canada
Manual-Service-ls720p-00-1v3.pdf

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Summary of Contents for YORKVILLE LS720P

  • Page 1 SERVICE MANUAL MODEL TYPE: YS1055 LS720P WEB ACCESS: http://www.yorkville.com WORLD HEADQUARTERS CANADA U.S.A. Yorkville Sound Yorkville Sound Inc. 550 Granite Court 4625 Witmer Industrial Estate Pickering, Ontario Niagara Falls, New York L1W-3Y8 CANADA 14305 USA Voice: (905) 837-8481 Voice: (716) 297-2920...

  • Page 2: Important Safety Instructions

    IMPORTANT SAFETY INSTRUCTIONS This lightning flash with arrowhead symbol, within The exclamation point within an equilatereal triangle is an equilateral triangle, is intended to alert the user to intended to alert the user to the presence of important the presence of uninsulated “dangerous voltage” operating and maintenance (servicing) instructions in within the product’s enclosure that may be of sufficient the literature accompanying the appliance.
  • Page 3 LS720P Parts List 8/15/2012 YS # Description Qty. YS # Description Qty. YS # Description Qty. 6405 RED 3MM LED 2V0 20MA BRT 3494 CLIP 205/187X020 14-16AWG DISCO/INS 4983 1/4W 10K 5%MINI T&R RES 6400 YEL 3MM LED 1V9 6MA HIGHEFF 3601 RING TERMINAL 16AWG WIRE &...
  • Page 4 GND AT TRANSISTORS troubleshooting of Level Shift, drivers OUTPUT OUTPUT and output devices INPUT FILTER INTEGRATED DIFF AMP ERROR AMP U9. Q8, U10 GATE DRIVE LEVEL SHIFT -120 RAMP GENERATOR SILENT ON/OFF VIA Q19 WOOFER BLOCK-DIAG-LS720P-00-1v0.ai...

  • Page 5: Power Supply

    R115 4148 R108 INPUT A 681R0 1/4W P6:A 100V -15VIP 200V +15VIP P6:C U24:A 17K40 HF ROLLOFF MINI INSERT FOR LS720P IGND 0.1% 1/4W GNDA GNDA 0.1% 220K DNS FOR LS701P TL072 100N -15VIP IN-Speaker NET00227 OUT-Line MINI DNS FOR LS720P...
  • Page 6 U8:B 100N 6728 {Watts} WOOFGND PSGND PSGND 100N TO92 100V 100N 100N 100N PSGND WOOFGND 100V Product LS720P / NX720S 100V 100V 100V -15V 6887 Powered Speaker PCB# M1330 Sheet PSGND -15V_MOD Date: Thu Jul 19, 2012 Rev: Filename: X8018V05sch.sch2006...
  • Page 7 R123 C105 SOCKET WITH DIRECTION 3300U 180V R140 TL072 2.0W 6882 LM13600N 4007 R114 D.N.S. R143 6K19 4007 C134 18V0 X8018 LS701P/LS720P MPSA92 4056 R139 4148 18uH 100N 10R0 100N R170 100N R142 MC33078P MPSA13 LM311 R141 100N 6840 6640...
  • Page 8 6. LEDS ARE INSERTED IN PCBSA WITH A #4007 SPACER MPSA92 7. Make sure Jumper X and X are not stuffed for LS720P . ***PCBSA****** 8. C4 #5194-470P 1000V 10%CAP BLK RAD CER.2in GETS HAND INSERTED AND RTV IN PCBSA. TO-247...
  • Page 9 SEE PRODUCTION NOTES 1330 .PCB_DATABASE_HISTORY MODEL(S):- LS720P DATE VER# DESCRIPTION OF CHANGE MARCH 2010 1.00 MADE FROM NX720S M1330 V1.00 IN MARCH 2010 FORCE UPDATED PARTS TONY'S LIST APRIL 2010. JUNE 2010 2.00 6 RESISTOR CHANGES AND A FEW BOARD MOD'S...
  • Page 10 7471 15" 8R 1000WPRGM 3"V.C. NEO SPE Z907* LS720P GRILL 8258D Y LOGO ELITE SERIES MEDIUM DO Z906* LS720P GRILL BAR 8565 BAR HANDLE ALL METAL RECTANGULA CORNER,2 LEGS NOTCED BLACK POWD 8570 8520 RUBBER BUMPER WITH WASHER -MEDI ADAPTOR,SPEAKER STAND,METAL,BLA...
  • Page 11 LS720P Parts List 6/21/2010 Description Qty. YS # Description Qty. YS # Description Qty. 5906 RED 3MM LED 1V9 20MA.4SPCER T&R 4010 XLR FEML PCB MT VERT 24MM AA-SERIES 5021 1/4W 18K7 1% T&R RES 5907 YEL 3MM LED 1V9 20MA.4SPCER T&R...

  • Page 12: Input Select

    PO W E R L I M I T C L I P LS720P LEVEL BOOST ROLLOFF FREQUENCY INPUT SELECT LINE SPKR IN PU T A IN PUT IN PU T THRU A TH RU A TH RU B A-Z552B / 1v0...

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