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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: Service Manual, 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-00-1v0.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, The exclamation point within an equilatereal within an equilateral triangle, is intended to alert triangle is intended to alert the user to the the user to the presence of uninsulated presence of important operating and “dangerous voltage”...
  • Page 3 ls720s Parts List 10/1/2007 YS # Description Qty. YS # Description Qty. YS # Description Qty. 5906 3MM LED 1V9 20MA.4SPCER T&R 3682 250 MALE PCB TAB REEL 4784 1/4W 17K40 0.1% *** T&R RES 5907 3MM LED 1V9 20MA.4SPCER T&R 3921 1/4"...
  • Page 4 L S 7 2 0 P B l o c k D i a g r a m f o r D E S I G N E D & M A N U FA C T U R E D B Y Y O R K V I L L E S O U N D MODEL TYPE:YS1055 FAST DETECT LIMITER...

  • Page 5: Power Supply

    Link Level 1/4W 1/4W 470R P1:A 3453 4434 R116 C124 Mono Blend Input MINI +15VIP +15VIP 1.0W +15VIP R165 9K76 1.0W 0.5% 1/4W SIGNAL TO 9K76 R123 0.5% R146 3925 AMP INPUT 113K NE5532N R115 R124 Link Rolloff 330N Rolloff TL072 U14:C TL072...
  • Page 6 M1330.PCB_DATABASE_HISTORY MODEL(S):- NX700S +15V +15V DATE VER# DESCRIPTION OF CHANGE R210 1/4W +22V MAY 2006 1.00 MADE FROM NX750P M1231 V2.00 IN MAY 2006 M1231 HAD BEEN FULLY FORCE UPDATED ON MAY 2005 FUSIBLE MAY 2006 FORCE UPDATED ALL COMPONENTS MODIFIED R258 R211 WITH IN THE LAST YEAR USING TONY'S LIST.
  • Page 7 BLACK 0.01"/HOLE C106 GAGE C102 ROUTE MPSA13 C132 C120 TRANSFORMER BLK C138 4148 BLACK 100N 100N 470K C112 5266 R113 R120 100K R117 250V R136 680N AC BLACK 180N 4148 100K 18V0 250V 6492 100N 250V GROUND 18V0 1300UH 4148 WHITE 6451 5906...
  • Page 8 SEE LAYOUT DIAGRAM M1330.PCB_DATABASE_HISTORY PRODUCTION NOTES REWORK ON M1330 MODEL(S):- NX720S 1. BOTTOM SIDE PHOTO 1 DATE VER# DESCRIPTION OF CHANGE ADD A #5194, 470P 100V SERIES MAY 2006 1.00 MADE FROM NX750P M1231 V2.00 IN MAY 2006 1. NOTE THAT THIER IS SEVERAL LINES ON THE DSBOTMASK LAYER. M1231 HAD BEEN FULLY FORCE UPDATED ON MAY 2005 WITH A #4703 2R 2 W.
  • Page 9 BLACK C106 C102 MPSA13 C132 C120 TRANSFORMER BLK C138 4148 BLACK 100N 100N 470K C112 R113 R120 100K R117 250V R136 680N AC BLACK 180N 4148 100K 18V0 250V 100N 250V GROUND 18V0 1300UH 4148 WHITE R103 TRANSFORMER BLK GREEN R138 TL072 AC WHITE...

  • Page 10: 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 TH RU A TH RU A T H R U B A-Z552B / 1v0 YS#9916 Gray Knob (qty: 1) YS#9917 Green Knob (qty: 1)