McIntosh MI-3 Owner's Manual

2 CHAMBERS ST., BINGHAMTON, N. Y. 13903 607-723-3512 Design sub|ecl to change without notice. Printed In U.S.A. Be102002 ...

MULTIPATH CONTROL This control adjusts the position of the Multipath trace display along the vertical scale of the indi- cator screen. DEVIATION (HORIZONTAL) MULTIPATH CONTROL This control adjusts the maximum width of the multipath trace display along the horizontal scale of the indicator screen. LEFT GAIN (VERTICAL) AUDIO CONTROL This control adjusts the maximum vertical indicator trace deflection for a left channel audio signal. RIGHT GAIN (HORIZONTAL) AUDIO CONTROL This control adjusts the maximum horizontal indi- cator trace deflection from a right channel audio ...

— 700 MV Left Audio (vertical) Input 20 MV Deviation (horizontal) Input ±350 MV Right Audio (horizontal) Input 20 MV DIMENSIONS Front panel: 16 inches wide by 5-7/16 inches high; chassis (including PANLOC shelf) 15 inches wide by 5 inches high by 13 inches deep, including connectors; clearance in front of mounting panel including knobs, 1 ½ inches. TUBE AND SEMICONDUCTOR COMPLEMENT 1—3RP1, 3 inch cathode ray tube. 4—6EA8, horizontal and vertical deflection amplifiers. 1—6EA8, electronic voltage regulator. 2—OB2, voltag ...

MULTIPATH AND TUNING INDICATION the Ml 3 power switch to the ON position. Turn the SCOPE TEST switch to TEST. Adjust the HORIZONTAL POSITION front panel control until the trace dot is centered horizontally on the indicator screen. Calibra- tion lines are provided on the indicator face for centering purposes. Adjust the VERTICAL POSITION front panel control until the trace dot is positioned at the bottom center of the vertical scale. Adjust the INTENSITY and FOCUS controls for a sharp aTurnnd clear trace dot. Turn the SCOPE TEST switch to MULTIPATH position. Turn the tuner tun ...

SUPPLIED WITH THE Ml 3. USE THESE CABLES TO CONNECT THE Ml 3 TO A TUNER FOR MULTIPATH RECEPTION. A PAIR OF 6 FOOT LONG SHIELDED CABLES ARE SUPPLIED FOR CONNECTING THE Ml 3 IN AUDIO CIRCUITS. CONNECTING TO MclNTOSH MR 71 OR MR 67 TUNER. Connect a 3 foot low loss shielded cable from the TP No. 1 (Test Point No. 1 jack on top of the tuner chassis) to the Signal Strength (vertical) Input on the Ml 3. Connect a second 3 foot low loss shielded cable from the TP No. 2 (Test Point No. 2 jack on rear of the tuner chassis) to the deviation (horizonta ...

of tuner chassis) to the Signal Strength (vertical) Input on the Ml 3. Connect a 3 foot low-loss shielded cable from the FM multiplex output jack on the tuner back panel to the Deviation (horizontal) Input on the Ml 3. CONNECTING TO MclNTOSH MR 55A TUNER Remove the feed-through capacitor L 43 (1000 MMF) connected to TP No. 1. This capacitor can best be removed by unsoldering. Solder the center lead of a 1 foot low-loss shielded cable to the Test Point end of R 27 (100K resistor). Solder the outer shield of the cable to the ch ...