Mc INTOSH hfe mcintosh c220 service ws1001 on free download

File name hfe_mcintosh_c220_service_ws1001_on.pdf

C220 C220 TUBE PREAMPLIFIER SERIAL NO. WS1001 And Above CONTENTS Performance Specifications ... 2 Display Schematic and PCB ... 19 - 24 Notes ... 2 Balanced/Data Sch and PCB ... 25 - 30 Rear Panel ... 3 Pushbutton Sch and PCB ... 31 - 32 Section Location ... 3 Headphone Sch and PCB ... 33 - 34 Block Diagram ... 5 - 6 Parts List ... 37 - 43 Interconnection Diagram ... 7 - 8 Repacking Instructions ... 45 Main Schematic and PCB ... 9 - 18 SERVICE MANUAL Serial Number W S1001 And Above PERFORMANCE SPECIFICATIONS Frequency Response Headphone Output Impedance +0, -0.5dB from 20Hz to 20,000Hz 16 ohms to 250 ohms Total Harmonic Distortion Tube Compliment 0.08% from 20Hz to 20,000Hz Phono Circuitry: 2 - 12AX7A High Level Circuitry: 2 - 12AX7A Main Output 2.5V for rated input Power Requirements 100 Volts, 50/60Hz at 75 watts Maximum Voltage Output 110 Volts, 50/60Hz at 75 watts 8V RMS Unbalanced, 16V RMS Balanced 120 Volts, 50/60Hz at 75 watts 220 Volts, 50/60Hz at 75 watts Sensitivity (for rated output) 230 Volts, 50/60Hz at 75 watts High Level, 450mV unbalanced, 900mV balanced 240 Volts, 50/60Hz at 75 watts Phono, 4.5mV Note: Refer to the rear panel of the C220 for the Signal To Noise Ratio (A-Weighted) correct voltage. High Level, 90dB below rated output Phono, 80dB below 10mV input Overall Dimensions W