Mc INTOSH hfe mcintosh mr85 service en free download

File name hfe_mcintosh_mr85_service_en.pdf

AM/FM TUNER INCLUDING TM1 TUNER MODULE OPTION CONTENTS Performance Specifications ... 2 Display Schematic and PCB ... 11 - 16 Notes ... 2 Tuner Schematic and PCB ... 17 - 19 Rear Panel ... 3 RAA1 Schematic and PCB ... 20 Section Location ... 3 Parts List ... 21 - 22 Block Diagram ... 4 Exploded View and Parts List ... 24 - 26 Interconnection Diagram ... 5 - 6 Repacking Instructions ... 27 Power Supply Schematic and PCB ... 7 - 10 SERVICE MANUAL PERFORMANCE SPECIFICATIONS FM Tuner Specifications AM Tuner Specifications Useable Sensitivity Sensitivity 14dBF which is 1.4uV across 75 ohms 20uV External Antenna Input 50dB Quieting Sensitivity Signal To Noise Ratio Mono: 19dBF which is 2.4uV across 75 ohms 48dB at 30% modulation Stereo: 35dBF which is 15uV across 75 ohms 58dB at 100% modulation Signal To Noise Ratio Harmonic Distortion Mono: 75dB 0.5% maximum at 50% modulation Stereo: 70dB Frequency Response Frequency Response 50Hz to 6kHz NRSC Mono: + 0, - 1dB from 20 to 15,000Hz Adjacent Channel Selectivity Stereo: + 0, - 1dB from 20 to 15,000Hz 45dB minimum IHF Harmonic Distortion Image Rejection Mono: 0.3% at 100Hz 65dB minimum from 540 to 1600kHz 0.3% at 1,000Hz IF Rejection 0.3% at 10,000Hz 80dB minimum Stereo: 0.45% at 100Hz 0.45% at 1,000Hz General Specifications 0.65% at 10,000Hz Intermodulation Distortion Rated Output Mono 0.25% Fixed output: 1.2 Volts Stereo 0.45% Variable o