M&S Systems dmc3-4 Troubleshooting

dmc1 & dmc3
-
4 System Troubleshooting
If there is “No Power” on the unit
—
it will not power up:
·
Check that the circuit breaker at the electrical box is on.
·
Check that the TE
-
5 transformer is connected correctly.
(Brown
to Yellow 16
-
18 VAC, Blue
to Red 16
-
18 VAC)
·
Check the fuses on the back of the master unit.
Replace if
necessary (Radio Shack Part #270
-
1065).
·
Reset master unit by inserting a paperclip in the reset hole,
which is located behind the door.
If the radio reception is poor
:
AM
·
Check that AM antenna is installed in accordance with finish out
instructions, and connected to tuner module.
·
Check that TE5 transformer is properly grounded.
·
Check that ribbon cable from tuner to circuit board is seat
ed
properly.
·
Possible defective master.
FM
·
Check that FM antenna is installed in accordance with finish out
instructions, and connected to tuner module.
·
Check that ribbon cable from tuner to circuit board is seated
properly
.
·
Possible defective master.
If feedback occurs when initiating talk or listen:
·
Check that intercom stations are not installed back to back or in
the same wall cavity.
·
Check that intercom stations are not installed within 10 feet
of
each other.
·
Check for shorts on intercom station cable runs.

M&S Systems dmc3-4 Specifications

General

Brand	M&S Systems
Model	dmc3-4
Category	Intercom System
Language	English