M&S Systems dmc3-4 Operating instructions

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.

·
Reduce intercom volume.
If the CD will not eject the cartridge:
·
Check that there are no room station cables or other wires routed behind the
mechanism in the CD cha
ssis.
·
Make sure that the CD chassis and plastic faceplate is installed correctly.
·
Check that the CD
eject
PCB is plugged into the mechanism.
If intercom buttons don’t function properly:
·
Check that intercom switches are not in th
e “OFF” position.
·
Check that room station and patio connectors are terminated
correctly.
·
Check for shorts or opens on intercom station cable runs.
·
Check for shorts or opens on chime module and door station
cable runs. (Continuous chi
me will lock up the master.
See System
Diagnostics.)
·
Reset master unit by inserting a paperclip in the reset hole,
which is located behind the door.
·
Check that there are not a lot of excess room station cables run
behind the master. Bulk
y wire may cause master circuit boards to
compress against each other and trigger the buttons
.
·
Check the total length of run isn't above 350' or system over
1000' total
If there is no radio or intercom audio:
·
Check that room switches are
not in the “OFF” or “MONITOR”
position.
·
Check that volume settings and controls are set properly. (See
AUDIO SETTINGS)
·
Make sure the “SOURCE” selection is correct.
·
Check for shorts or opens on intercom station cable runs.
·
Check that room station and patio connectors are terminated
correctly.
·
Reset master unit by inserting a paperclip in the reset hole,
which is located behind the door.

·
Possible defective master.
If the unit has hum, popping, or audible o
scillation:
·
Check that room station and patio connectors are terminated
correctly. (Remove room stations from the master one at a time to
identify the source of the interference.)
·
Check for shorts on intercom station cable runs.
·
Check that cable runs are not too close to AC lines.
·
Check that room stations and master are not mounted too close
to electrical equipment. (
i.e
. TV, Cordless phones, microwave oven,
etc.)
·
Check that master is on a dedicated 120 Volt 15 a
mp circuit
breaker.
·
Possible defective transformer (TE5).
·
Possible defective master.
If there is no communication to the door:
·
Make sure to perform “DOOR TALK” correctly. (
press
“Listen”
and “Talk” simultaneously to talk to the d
oor.
Release to listen to
the door).
·
Check that door speaker is connected properly at master unit
and door station.
·
Check for short or open on door station cable.
·
Check that master is not in “off” position
·
Check that i
ntercom and master volume levels are set properly.
·
Possible defective door station.
·
Possible defective master.
If there is no chime, or continuous chime:
·
Check that the chime module (MC3 or MC8) is connected
correctly to the mast
er unit.
·
Check that the bell button wires are connected to screws on
back of bell button. (Bell button should be lit if connected properly
to the chime module.)

·
Check that room switches at master are in “RADIO INT” or
“INTERCOM” position.
(No chime when stations are switched to the
“Monitor” or “Off” position.)
·
Check that “INTERCOM VOLUME” and room station volume
controls are adjusted properly. (See AUDIO SETTINGS.)
·
Check for short or open on bell button wires. (Short wil
l cause
Error 9).
·
Possible defective chime module.
If the room station does not function properly:
·
Check that room station and patio station connectors are
terminated correctly. (Make sure there are no loose or broken wires
and that the c
orrect color code was used to connect the room
stations.)
·
Check for shorted or open room station cable run.
·
Possible defective intercom station.
·
Possible defective transformer (TE5).
·
Possible defective master.
For DMC 4
wire:
If all else fails, try unplugging all wires EXCEPT GREEN:

Add all RED wires one at a time, checking for Master Talk and
Music

Add all WHITE wires one at a tiime, checking for Listen and
Talk

Add all BLACK wires one at a time.
System Diagnostics:
·
To put the dmc master into “test mode,” press VOLUME UP
~
and TUNE UP
~
simultaneously.
The display will show the version
number of the software (e.g “1.7”) and the word “test”.
·
To display stored error messages press TUNE DOWN
€
and
“PRESE
T” simultaneously. This will display the last four error codes.
·
To exit error codes, press TUNE DOWN
€
and “PRESET”
simultaneously.
·
To exit “test” press VOLUME UP
~
and TUNE UP
~
simultaneously

dmc1
Error Codes
Code
Description
Possibl
e Causes
1
CD Mechanism Failure
Improperly inserted or defective
cable,
defective Compact Disc,
or defective mechanism
2
CD Mechanism Thermal
Protection
Improper installation,
or defective mechanism
3
CD communications failure
Control cable not conne
cted,
no power to the mechanism,
or defective mechanism
4
FM Tuner Frequency Lock
Failure
Improper AM antenna
installation,
ribbon cable not seated
correctly,
defective tuner module,
or defective master
5
Room Station Control
Shorted cable run,
inco
rrect terminations,
defective room station
Too Long of a single or
combined
cable run (single 350'/comb
1000')
6
Patio Control
Shorted cable run,
improper termination,
defective patio station
7
Disc Data Error
Compact Disc dirty or damaged
9
Continuo
us Chime
Stuck bell button,
short on door station cable run,
or defective chime module

Audio Settings
Volume
·
Music
—
Adjusts the volume for system music
·
Master Station
—
Adjusts the volume for the speaker on the Master Station
only
·
Intercom
—
Adjusts the volume for the system intercom
Tone
·
Loudness
·
Treble
·
Bass
·
Balance (if you have the optional stereo power amplifier)
Function
Recommended Setting from
Software VER 1.7 and 1.9
Master Volume
10
Loudness
On
Treble
10
Bass
8
Balance (optional mc960PA only)
0
Intercom Volume
10
Function
Recommended Setting from
Software VER 2.4 and later
Master Volume
25
Loudness
On
Treble
10
Bass
8
Balance (optional mc960PA only)
0
Intercom Volume
25

Useful Information
DMC 1 Wire Functions
CAT5
–
Retrofit Wir
e Conversion Chart
CAT5
FUNCTION
M&S
MS7
M&S
MS6
NUTONE
IW6
RITTENHOUSE
8
CONDUCTOR
RITTENHOUSE
7200
ORANGE
IC INPUT
BLUE
BLUE
ORANGE
GREEN
GREEN
ORANGE/WHITE
IC INPUT
YELLOW
YELLOW
ORANGE/WHITE
YELLOW
YELLOW
BLUE
ROOM/PATIO
A/D
RED
RED
BLACK
RED
BLUE
GREEN/WHITE
RELAY
CONTROL
BLACK
BLACK
BLACK/WHITE
BLACK
BLACK
BLUE/WHITE
&
BROWN
GROUND
WHITE
WHITE
RED/WHITE
WHITE
WHITE
BROWN/WHITE
&
GREEN
AUDIO
GREEN
GREEN
RED
BLUE
BROWN
NOT USED
VIOLET
ORANGE
NOT USED
GREY
45
Ω Polarit
y Chart
FOR MONO SPEAKERS ON dmc1 MASTER UNIT
Polarity
CAT5
45
Ω
SPEAKER
MVC1
Positive
+
Green and
Brown/White
Red
Violet
Negative
-
Brown and
Blue/White
Black
Blue
45
Ω Polarity Chart

FOR STEREO SPEAKERS ON MC960PA
Polarity
SVC96
45
Ω
Speaker
MS2SXS
C
MS5XSC
Left
+
Green
Red
Violet
Green
Right
+
Violet
Red
Violet
Violet
Negative
-
White
Black
Blue
White