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YORKVILLE YCV4050 Instructions De Service
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YORKVILLE YCV4050 Instructions De Service

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WORLD HEADQUARTERS
CANADA
Yorkville Sound Limited
550 Granite Court
Pickering, Ontario
L1W 3Y8 CANADA
Voice: 905-837-8481
Fax: 905-837-8746
U.S.A.
Yorkville Sound Inc.
4625 Witmer Industrial Estate
Niagara Falls, New York
14305, USA
Voice: 716-297-2920
Fax: 716-297-3689
SERVICE MANUAL
YCV4050

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  • Page 1 SERVICE MANUAL YCV4050 WORLD HEADQUARTERS CANADA U.S.A. Yorkville Sound Limited 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...

  • Page 2: Important Safety Instructions

    IM PORTAN T S A F E TY I NS TRU C TI ONS This lightning flash with arrowhead symbol, within The exclamation point within an equilatereal triangle is intended to alert the an equilateral triangle, is intended to alert the user to the presence of user to the presence of important operating and maintenance (servicing) uninsulated “dangerous voltage”...
  • Page 3 MEME COURANT NOMINAL Extension Speaker Power EFX / Line Footswitch DISCONNECT POWER DESIGNED & MANUFACTURED BY BEFORE SERVICING! YORKVILLE SOUND • Toronto, CANADA THIS UNIT MUST BE GROUNDED! DEBRANCHER L’APPAREIL AVANT D’ENLEVER LES COUVERCLES! CET APPAREIL DOIT ÊTRE MIS À LA TERRE!

  • Page 4: Power Requirements

    S p e c i f i c a t i o n s Electronics Vacuum Tubes 2 x 6L6 (alt 5881) 3 x 12AX7 (alt 7025A) DC powered filament supply on preamp tubes Bias Supply Adjustable Power Output 50 Watts RMS Speaker 12 inch Celestion®...

  • Page 5: Puissance Requise

    S p é c i f i c a t i o n s Circuit Électronique 6L6 (alt 5881 types) Lampes 2 x 3 x 12AX7 (alt 7025A) Alimentation de filament spécial sur les lampes de préamplificateur. Tension de Polarisation Auto équilibrée Puissance de Sortie 50 watts RMS Celestion®...
  • Page 6 Block Diagram for YCV4050 SPLITTER PREAMP D E S I G N E D A N D M A N U F A C T U R E D B Y Y O R K V I L L E S O U N D...
  • Page 7 YS # Description YS # Description YS # Description YS # Description AI-ASS M645-59 YCV4050 GUITAR AMP. PCB. 6438 1N4007 1000V 1A0 DIODE T&R 4847 W250 2K2 5% T&R RES 3522 DPDT MINI PC VERT SNP ALT 5257 __2U2 63V 20%CAP T&R RAD .2EL...
  • Page 8 220K MINI 3700 3700 S6:A 3522 K2:A K1:A This part is stuffed ONLY 1/4W 113K on M581 (YCV40) 400V and M645 (YCV4050) 3700 This part is stuffed ONLY 400V on M613 (YCV50BLUE) 100N 250V 400V PRE-AMP 100K K1:B 4424 R114...
  • Page 9 RAD CER.2in .2in 400V 1/4W 1/4W REVERB RTN 6541 1/4W 1/4W REVERB SEND 250V .2in 400V 100K NE5532N 6541 4424 U1:C 1/4W P11:A REVERB U1:B Product YCV4050 M645 Loop/Reverb PCB# X8040 Sheet Date: Tue Jan 21, 2020 Rev: YsType: Filename: X8040V16sch.sch2006...
  • Page 10 These parts are .2in stuffed ONLY on X613 400V SOLID SOLID X613_ M613 (YCV50B) 1/4W 1/4W 1/4W SOLID SOLID 470K 270K and M645 (YCV4050) 3392 2X_TRIODE_HCT SPLITTER OUTPUT 1324M OUTPUT V4:A .2in V3:A 1.0W 3392 OUTPUT 100N 1/4W 220R 400V...
  • Page 11 5101 TO92 to_DC_FIL 3392 DC_FIL R106 R115 V4:B V3:C V5:B V1:C V2:C 5.0W 1.0W 1/2W PENTODE PENTODE 2X_TRIODE_HCT 2X_TRIODE_HCT 390R 220U 2X_TRIODE_HCT 10X12MM to_V2,V3_PL Product YCV4050 M645 Switching/Supply PCB# X8040 Sheet Date: Tue Jan 21, 2020 Rev: YsType: Filename: X8040V16sch.sch2006...
  • Page 12 X8040 Version History MODEL(S):- YCV40/YCV50B/YCV4050 DATE VER# DESCRIPTION OF CHANGE 21-JAN-2020 Release X8040 for production includes M645 Board Added with different Values for YCV4050. XC146 X8040 POT LIST YCV40/YCV50B/YCV4050 MODEL(S):- FUNCTION PART# KNOB AS OF DRIVE #4425 #8430 11/00 TREBLE...
  • Page 13 TO W20 OUTPUT TO W6 330K OUTPUT 3733 220N 4007 1/2W 250V TO W24 OUTPUT 5882 to_V2,V3_PL R115 3498 3498 4007 220N 250V 5882 Out_XF_CT BC550C Top Assy X8040 YCV50B YCV4050 YCV40 CLINCH X8040 X8040 INSERT ORIGIN ORIGIN SEE LAYOUT DOCUMENTATION...
  • Page 14 SEE LAYOUT DOCUMENTATION PRODUCTION NOTES M645 YCV4050 1. RTV MUST BE ADDED TO THE FOLLOWING CAPS C1,C16,C19,C17,C70 BETWEEN C84,C28,C60,C15 BETWEEN C49,C50, ADDED TO C15,C7,C8,C3,C9 C56,C14,C6,C10,C4,C2 AND C12 2. C53 IS 22N FOR BOTH NORTH AMERICA AND CE Z352 3796 on this device only.
  • Page 15 DESCRIPTION OF CHANGE MODEL(S):- YCV40/YCV50B/YCV4050 DATE VER# DESCRIPTION OF CHANGE 21-JAN-2020 Release X8040 for production includes M645 Board Added with different Values for YCV4050. X8040 PENDING CHANGES MODEL(S):- YCV40/YCV50BLUE PENDING CHANGE *PLACE IMPLEMENTED CHANGES INTO BOARD HISTORY X8040 POT LIST YCV40/YCV50BLUE...
  • Page 16 To get the full Owner’s Manual please visit our website at http://www.yorkville.com/manuals/ or, if you need a printed version call 905-837-8777 Printed In CANADA QuickStart-YCV4050-00-1v1 • YS#QSTART-YCV4050 • January 22, 2020...
  • Page 17 12AX7 12AX7 12AX7 avec le volume du canal 1 pour ajuster le Ch. Select deux canaux. Le YCV4050 est équipé Send / Boost niveau de saturation à base de lampes. DISCONNECT POWER WHEN POWER...
  • Page 18 Yorkville Sound 550 Granite Court Pickering, Ontario Canada L1W 3Y8 www.yorkville.com Auto Attend: (905) 837-8550 Fax: (905) 837-8746...