McIntosh MR66 Operations Instructions download pdf (Page 13)

Connect the two wires of the 300 ohm

lead-in from the external antenna to the

MR66 back panel FM ANT terminals.

75 OHM ANTENNA

FROM VHF TV

ANTENNA

An unbalanced 75 ohm FM antenna may

also be used with the MR66. Connect the

center lead of the coaxial lead-in cable to the

right hand FM ANT terminal. Connect the

shield of the coaxial cable to the ground

screw next to the right of this same FM ANT

terminal.

VHF-TV ANTENNA

A conventional VHF TV antenna of the

type also suitable for FM may be used with

the MR66. Connect the two leads from the

300 ohm TV antenna lead-in wire to the two

FM ANT terminals on the MR66 back panel.

Connect a length of 300 ohm flat lead-in wire

from the TO TV SET terminals on the MR66

back panel to the antenna terminals of the

TV set.

The MR66 MODE SELECTOR switch auto-

matically switches the VHF TV antenna to the

MR66 in any of the "on" positions. The

antenna is switched back to the TV set in the

POWER OFF position.

OPERATING INSTRUCTIONS

MONOPHONIC AM RECEPTION

Turn the MR66 MODE SELECTOR switch

to MON AM. Turn the FM FUNCTION switch

to FM OUT. Turn the AM FUNCTION switch

to any of the four bandwidth settings. It is

usually easiest to tune at the NARROW or

MEDIUM 1 position. After a warm up time of

approximately 30 seconds, turn the AM

tuning dial to the desired station. Depending

on the quality of the AM signal, select the

best possible bandwidth setting. (See the

section titled "AM FUNCTION SWITCH.":

The AM Signal Strength meter will indicate

the relative strength of the particular AM

station being received.

MONOPHONIC FM RECEPTION

Turn the MODE SELECTOR switch to

MON FM. Turn the AM FUNCTION switch to

AM OUT. Turn the FM FUNCTION switch to

MUTE IN. Set the AUTO FREQ CONTROL to

any position between MIN and MAX. (See the

section titled "AUTO FREQ CONTROL.")

After a warmup time of approximately 30

seconds, turn the FM tuning dial to the de-

sired station. The correct FM tuning point is

reached when the FM TUNING meter pointer

comes to rest anywhere in the center black

area of the meter scale. While tuning across

the dial you may notice movement of the

tuning meter, yet don't hear a station. This is

11

Figure 16. VHF TV Antenna Connections.

TO TV SET

Figure 15. Connection For 75 Ohm Coaxial Antenna.

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