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YORKVILLE DH40H Service Manual
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YORKVILLE DH40H Service Manual

YORKVILLE DH40H Service Manual

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SERVICE MANUAL

MODEL TYPE: YS1092
DH40H
• I R O NH O R S E •
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-DH40H-00-1v0

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Summary of Contents for YORKVILLE DH40H

  • Page 1: Service Manual

    SERVICE MANUAL MODEL TYPE: YS1092 DH40H • I R O NH O R S E • 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...

  • 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 9 PIN PC MOUNT TUBE SOCKET BE 5902 _82U 450V 20%CAP BLK 22X30MM 3984 8 PIN PC MOUNT TUBE SOCKET BE 4424 100K 1B LIN 9MM 1407 DH40H POWER TX SHIELD !FIRST 200! 4444 500K 1B LIN 9MM CH1343 DH40H XFMR 4425 500K 15AAUDIO 9MM CH1343M...
  • Page 4 TO92 1/4W 1/4W 3696 3696 5101 5101 DOWN: Cathode Bias (Low Power) S3:A S3:B 470N TO92 470N TO92 PURE PURE IronHorse (DH40H) IronHorse (DH40H) Product Product K2:B power amp power amp PCB# PCB# M1423 M1423 Sheet Sheet 4148 K2:A 1/4W...
  • Page 5 {Voltage} 2 W5:B XF_P1 4007 XF_P2 {Voltage} {Voltage} PENTODE PENTODE 2 W6:A {Hz} 100R V4:B V5:B {Description} 6.3Vac V3:C IronHorse (DH40H) IronHorse (DH40H) 2X_TRIODE_HCT Product Product Part# 100R {Voltage} XF_P1 power supply power supply PCB# PCB# M1423 M1423 Sheet Sheet...
  • Page 6 RING-SW 5840 400V 470K 1K54 3921 Input Hi 100N Input Lo 3921 5973 R T V 450V 1K54 1K54 1.0W 450V 220U 100N 5973 R T V W27_ 680R 1.0W R T V 4148 100K 1K54 100R 220P 100R 470N Filaments 470N BC550C...
  • Page 7 FOOTSWITCH RING-SW 5840 400V 470K 1K54 3921 Input Hi 100N Input Lo 3921 5973 R T V 450V 1K54 1K54 1.0W 450V 220U 100N 5973 R T V W27_ 680R Poweramp_In 1.0W R T V 4148 100K M1423 1K54 100R 220P 100R 470N...
  • Page 8 SEE LAYOUT DIAGRAM M1423 PRODUCTION NOTES 1. Screw U1 directly to PCB using 1x YS# 8799 2. Apply RTV to C13 C14 C15 C16 C26 C34 C36 C41 3. KEYWAY OF S1 AND S5 MUST FACE ARROW ON SILKSCREEN 4. HARDWARE FOR 6549 & 6559 MUST BE ASSEMBLED IN ORDER INDICATED IN ASSEMBLY DRAWING 5.
  • Page 9 SEE PRODUCTION NOTES M1423 M1423.PCB_DATABASE_HISTORY MODEL(S):- MODEL(S):- {MODEL} MODEL DATE VER# DESCRIPTION OF CHANGE DATE VER# DESCRIPTION OF CHANGE 11-JAN-2011 V01 12-APR-2011 PC8221: #4160 new AC pattern. #4646 update. GG PC8264: Change R4 #4776 with #6588 hand insert GG M1423 PENDING CHANGES MODEL(S):- MODEL PENDING CHANGE...