Cambridge Audio 340A - User Manual

Gallery Court Hankey Place London SE1 4BB UK
Tel: +44 (0)20 7940 2200 Fax: +44 (0)20 7940 2233
340A
Issue Date: 18
th
June 2004
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SERVICE MANUAL
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SPECIFICATIONS:
Power Output 40W (into 8Ω)
50W (into 4Ω)
Max Power Consumption 345W
Total Harmonic Distortion 1kHz < 0.009%
20kHz < 0.09%
Frequency Response (-1dB) 5Hz – 50kHz
S to N Ration (unweighted) 99dB
Slew Rate (into 8Ω) 20V/uS
Dimensions (HxWxD)
mm 70 x 430 x 310
Inches 2.8 x 16.9 x 12.2
Weight
Kg 6.2
Lbs 13.6
AP15844/1
1

Summary

Safety Precautions & Important Notes

Main Assembly Bill of Materials

Microcontroller PCB Schematic

Microcontroller PCB Layout (Top Side)

Microcontroller PCB Layout (Bottom Side)

Main PCB Schematics

Input Select Schematic

Schematic diagram for the input selection circuitry.

Power Amplifiers Schematic

Schematic diagram for the left and right power amplifier stages.

Power Supplies Schematic

Schematic diagram for the unit's various power supply circuits.

Tone Control Schematic

Main PCB Layouts

Top Side PCB Layout

Bottom Side PCB Layout

Main PCB Bill of Materials

IC Pin Layout Details

Cambridge Audio 340A Specifications