CAMBRIDGE hfe cambridge audio azur 640c service free download

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640C Issue Date: 22nd December 2004 ________________________________________________________________________ SERVICE MANUAL ________________________________________________________________________ SPECIFICATIONS: D/A Converter Wolfson WM8740 24-Bit/192kHz Capable Freq response (-0.5dB) 10Hz to 20kHz THD <-92dB Dynamic Range <105dB Channel Separation >75dB Jitter (correlated) <260pS Digital Outputs Opt and Coax Dimension (mm) (H x W x D) 70 x 430 x 310 Weight (kg) 4.6 AP14839/2 Gallery Court Hankey Place London SE1 4BB UK Tel: +44 (0)20 7940 2200 Fax: +44 (0)20 7940 2233 1 640C SERVICE MANUAL TABLE OF CONTENTS Safety Precautions & Important Notes 3 Laser Safety Precautions 4 Exploded Assembly Diagram 5 Main Assembly BOM (Silver Unit) 6-8 Front Panel PCB Schematic 9 Front Panel PCB Layout (Top Side) 10 Front Panel PCB Layout (Bottom Side) 11 Front Panel PCB BOM (Silver Unit) 12/13 Servo PCB Schematic 14 Servo PCB Schematic (Power Supply) 15 Servo PCB Layout (Top Side) 16 Servo PCB Layout (Bottom Side) 17 Servo PCB BOM 18/19 DAC PCB Schematic 20 DAC PCB Layout (Top Side) 21 DAC PCB Layout (Bottom Side) 22 DAC PCB BOM 23 Mains Input PCB Schematic 24 Mains Input PCB Layout (Top Side) 25 Mains Input PCB Layout (Bottom Side) 26 Mains Input PCB BOM 27 IC Pin Layout Details 28-33 Silver / Black Differences BOM 34 2 SAFETY PRECAUTIONS & IMPORTANT NOTES 1.Check that the rear of the product indicates the correct supply voltage for you area. 2. The lighting flash with the arrowhead within an equilateral triangle is intended to alert the user or service agent to the presence of dangerous voltages within the product enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons. 3. The exclamation point within an equilateral triangle is intended to alert the us