Bogen Stereo System RM 350D User Manual

Digital FM/AM Receiver  
Model RM-350D  
User’s Guide  
54-5021-01  
9609  
Printed in USA  
 
Before You Begin  
Your Bogen RM-350D Digital Tuner/Receiver incorporates the  
latest in PLL digital circuitry for reliable performance for years to  
come. To get the maximum benefit from your Bogen product,  
please read all instructional materials provided with the unit.  
Unpacking  
The RM-350D is carefully checked before leaving the factory.  
Inspect the shipping carton and unit for damage caused by  
improper handling. If damage is found you must file a claim  
with the transportation company that delivered the product.  
Warning  
To Prevent Fire or Shock Hazard, Do Not  
Expose This Appliance to Rain or Moisture.  
Make all connections with the power OFF  
Antenna Connection  
FM Dipole Antenna  
The indoor dipole antenna provided should be adequate for nor-  
mal FM reception.  
1. Connect the antenna leads to the two terminals marked 300  
OHM BAL.  
2. Move the antenna around to determine the best reception;  
tack it to a wall or baseboard, if possible.  
For reception where the unit is installed in a rack, an external  
antenna installed in accordance with National Electric Codes, is  
required. Either:  
a) Connect the external antenna leads to the 300 OHM BAL  
terminals.  
b) For applications using coaxial cable, a 75 OHM coaxial  
cable connector is provided.  
3
 
AM Loop Antenna  
The RM350D is provided with an  
external AM antenna for AM recep-  
tion.  
1. Carefully pull the antenna lead  
from the holding notch in the  
antenna and unwind the lead  
from the loop.  
2. Connect the antenna leads to the terminals marked AM  
ANT.  
3. Fold the antenna so that it snaps into the base forming a  
free-standing unit (see diagram).  
4. Position the antenna for best reception. If desired, the anten-  
na may be permanently mounted using screws through the  
two holes in the base.  
Microphone Connection  
Connect a Lo-Z microphone to the 3-pin connector marked MIC  
BAL on the rear panel. Be sure to observe correct polarity:  
Pin 1 is GND, pins 2 & 3 are signal. A VOX circuit activates  
the microphone.  
Music Muting  
Speaking into the microphone will automatically mute the aux or  
tuner output. Muting can also be accomplished by shorting the  
two terminals labeled AUX MUTE on the rear panel with a  
microphone having a normally open push to talk switch.  
Procedure To Change Aux Mute Activation  
The unit may also be configured to operate with a microphone  
having a normally closed switch by following the procedure  
below:  
Caution  
The following procedure requires removal of protec-  
tive covers, presenting an electrical shock hazard.  
Do not perform this procedure unless you are quali-  
fied to do so.  
4
 
1. Unplug the unit from electrical source.  
2. Remove eight (8) screws securing the unit cover to the  
chassis.  
3. Slide cover back to remove it from chassis.  
4. Locate Jumper J1 on the circuit board (right side of the unit  
as you look at it from front panel).  
5. Reposition jumper from CLOSED position to OPEN position.  
6. Reinstall cover and screws.  
Microphone ALC (Automatic Level Control)  
An ALC switch on the rear panel controls the ALC circuit. When  
“ON,” the ALC will maintain a consistent level between vari-  
ous microphone users  
AUX Input  
Connect an Aux source to the RCA jacked marked AUX.  
PREPAGE OUT  
The prepage output lets you route tuner and auxiliary input to a  
telephone music-on-hold input. The output is also independent  
of the tone and volume controls.  
Speaker Connections  
4-8 Direct Connection  
You can connect a 4-8speaker to the terminals marked 4-8Ω  
and GND as shown below. Remove the LINK for 4-8unbal-  
anced output.  
5
 
25V & 70V Connection  
You can connect a 25 or 70V balanced or unbalanced line to  
the terminals marked 25V or 70V and GND. 25V line connec-  
tion is shown below.  
Speaker Zone Connection  
You can connect up to 4 separate speaker zones.  
To connect zones of 4 - 8speakers: Connect the imped-  
ance selector jumper wire to the 4-8terminal. Remove the  
shorting bar between the LINK terminals. Connect one 8-  
ohm speaker to the desired zone terminal and COM, as  
shown below.  
Connect only  
one 8-ohm  
speaker per  
zone.  
For more than  
one speaker per  
zone, use 25V or  
70V speakers.  
Impedance selector wire  
from back of unit.  
6
 
To connect zones using 25V or 70V line: Connect the  
impedance selector jumper to the 25V or 70V terminal.  
Connect the line to the desired zone terminal and COM as  
shown below.  
Impedance selector wire  
from back of unit.  
Tape Out  
You can connect a tape recorder to the RM350D using the Tape  
Out jack. This jack provides a line level output consisting of the  
signal being sent to the loudspeakers, that can also be used to  
drive another amplifier. All controls affect this output. Connect  
a mono patch cord to the jack marked TAPE/BOOSTER  
7
 
Operation  
Power  
Press the front panel POWER switch to apply power. Adjust  
the volume to the appropriate level using the amplifier volume  
control.  
To Select a Band  
Press the button marked BAND. The current band appears on  
the display: FM1, FM2, FM3, AM1 or AM2.  
You can preset up to six stations on each band for a total of 30  
preset stations (18 FM and 12 AM).  
To Tune a Station  
Press the UP or DOWN buttons.  
To Preset Stations  
1. Select a band and tune the first desired station.  
2. Press one of the “M” buttons; for example, M1 (The preset  
number appears on the display as CH1).  
3. Continue pressing the “M” button until the program material  
from the speaker stops for a second and then resumes.  
This indicates that the preset is stored.  
4. Tune the next station and repeat Steps 2 & 3 for the 2nd  
through 6th preset.  
To Scan Preset Stations  
1. Select a band. The first preset station (CH1) will appear on  
the display.  
2. Press the button marked MSCAN. Each preset station will  
play for 5 seconds in turn while scanning.  
3. To stop the scanning, press the “MSCAN” button again.  
Program Selection  
Use the AUX/TUNER button to select program from the tuner or  
aux source. Push in for Aux program. Push out for Tuner pro-  
gram  
8
 
Microphone Volume  
Use the MICROPHONE control to adjust mic volume.  
Aux/Tuner Volume  
The VOLUME control adjusts the output level of program from  
tuner and aux sources. It does not control the level of the  
microphone program.  
Tone Controls  
Use the BASS and TREBLE controls to adjust tonal balance of  
program from the tuner, microphone and Aux sources.  
Speaker Zone Selection  
Use the selector buttons labeled 1 - 4 to turn the output on or  
off for each zone. Use the ALL button to supply output to all  
zones, overriding individual selection buttons  
9
 
Maintenance  
CAUTION  
There are no user serviceable parts within the tuner.  
To avoid an electric shock hazard, refer all internal  
servicing to qualified service personnel only.  
The warranty will become void if repairs are made by  
other than the Bogen Factory Service Center.  
We are interested in the maintenance of your Bogen equipment.  
In the event of any difficulty, do not hesitate to ask our advice or  
assistance. Information may be obtained by writing to the  
Service Department, Bogen Communications, Inc., P.O. Box  
575, Ramsey, NJ 07446.  
When communicating with us, please give the model number of  
your unit. Describe the difficulty encountered and include details  
on the electrical connections to associated equipment.  
For warranty and repair information, please refer to the warranty  
registration card included with the unit.  
10  
 
50 Spring Street, Ramsey, NJ 07446  
(201) 934-8500 Fax: (201) 934-9832  
 

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