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SERVICE MANUAL
Traynor DH25H
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-DH25H-00-1v0.pdf
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Table of Contents
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Summary of Contents for YORKVILLE Traynor QuarterHorse DH25H
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Page 1: Service Manual
SERVICE MANUAL Traynor DH25H 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... -
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 Specifications Model: QuarterHorse DH25H Type: Guitar Amp Pedal Power @ min. impedance (Watts): 25 watts into 8 ohms, 15 watts into 16 ohms Inputs: 1/4-inch phono Channels: Channel Switching: Channel controls: Clean Volume; Drive Gain; Drive Treble; Drive Volume; Master Volume Internal Reverb / Effects: Yes: Reverb;...
- Page 4 Block Diagram for DH25H E S I G N E D A N D A N U F A C T U R E D O R K V I L L E O U N D Reverb Rate /...
- Page 5 SOT-23 0805 0805 DG419 47K5 CHANNEL SWITCH S4:B 0805 4102 8007 CDSF4148 3.3mm Product Product Quarter Horse (DH25H) Quarter Horse (DH25H) Preamp Preamp PCB# PCB# M1410 M1410 Sheet Sheet Date: Date: Thu Sep 15, 2011 Thu Sep 15, 2011 Rev:...
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Page 6: Digital Effects
U12:B 0805 0805 10K0 MMBT3906LT1 270P 0805 R116 7805 0805 47K5 SOT23 0805 Product Product Quarter Horse (DH25H) Quarter Horse (DH25H) 0805 FX/AMP FX/AMP PCB# PCB# M1410 M1410 Sheet Sheet Date: Date: Thu Sep 15, 2011 Thu Sep 15, 2011... - Page 7 Horsetrack 4K99 470N 249R0 R101 100K0 100K0 R102 4107 100K0 100K0 220U 249R0 Quarter Horse TL072 DC Input MURA240T3 249R0 7669 DH25H 220U 47K5 M1410 470N 470N 47K5 10K0 100R R100 MMBT3904 20K5 MMBT3904 10K0 TL072 MMBT3904 20K5 7669 100R...
- Page 8 {TITLE} M1410 V03 PRODUCTION NOTES M1410_PCB_DATABASE_HISTORY MODEL(S):- Quarter Horse MODEL(S):- DH25H DATE VER# DESCRIPTION OF CHANGE DATE VER# DESCRIPTION OF CHANGE 1. Ensure that P5 is YS#4397. All other pots are YS#4396. 14-MAR-2011 V01 PC8223, PC8224: Value changes, add parts.
- Page 9 4114 NEUTRIK JACK WASHER RED 4107 2.5MM JACK POWER PCB MT H 4106 1/4" JCK PCB MT HORZ 9913 DH25H CAST CHASSIS W/COLOR BOX&FOAM 3801 5/8" BUMPER BUTTON BLACK 3428 8' 3/18 SJT AC LINE CORD REMOVABLE 2360 LED LENS CLEAR D.250"...
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