NuTone IM-3204 Series User Manual

Be sure there is 120 VAC, 60Hz power to the transformer’s primary.
Next check for 16 VAC on the transformer’s secondary.
10
SYSTEM OPERATING CONTROLS
(Continued)
10
INSTALLER'S TROUBLESHOOTING GUIDE
Diagnostic Tests
The following diagnostic tests have been incorporated into the
NuTone IM-3204 Radio Intercom to assist in troubleshooting.
1. Master station and remote station keyboard test.
2. Display test.
The following applies to both diagnostic tests:
1. To access any of the diagnostic tests, the system must be in
the quiescent state (radio off and intercom in the standby
mode).
2. Pressing the MEMORY SET key will end the current diagnostic
test.
3. The current diagnostic test will end after one minute of
inactivity.
MASTER STATION AND REMOTE STATION KEYBOARD
TEST- Verifies that all keys at the master station and remote
stations are functioning properly.
To Activate: Press and HOLD
1. ▼ key
2. END CALL key
In this mode the LCD will display the following as each key is
pressed.
DISPLAY TEST- Displays all of the segments in the display.
To Activate: Press and HOLD
1.
▲ key
2. END CALL key
Resetting the Microprocessor
NOTE: Resetting the microprocessor will cause radio memory
channels to be lost.
Should the system not operate properly, the internal
microprocessor may require resetting. To reset the
microprocessor, use the point of a pen to press the reset button
through the access hole behind the right lower door under the
MEMORY SET key.
KEY DISPLAY
No key pressed 00d
MASTER INSIDE/PATIO 001
MASTER DOOR TALK 002
MASTER END CALL 003
PROGRAM ON/OFF 004
PROGRAM SELECT 005
MEMORY RECALL 006
KEY DISPLAY
MEMORY SET 007
▲ 008
▼ 009
SCAN 010
REMOTE INSIDE PATIO 10d
REMOTE DOOR TALK 20d
REMOTE END CALL 30d
TROUBLE
No radio, no intercom,
no display.
No radio, intercom working.
No electrical power.
Defective transformer.
Faulty Master Station.
Installation problem.
Antenna problem.
Replace transformer.
Isolate Master Station from installation by removing IW-4UL cables from
Master Station. Wait one minute for timeout. With power on, radio
should be playing at Master. If no radio, Master is probably faulty. If radio
plays, reconnect IW-4UL cables one at a time from the remote stations.
Check screw terminals on Master Station for shorted wires or miswired
cables. Remove one 4-wire cable at a time to locate faulty line. When
radio comes on, check speaker connections and run continuity check
of speaker wiring.
Check for shorted antenna connection. Remove antenna connector
from tuner board and touch each pin with metallic object. If radio plays,
antenna is not functioning; be sure it is installed properly.
POSSIBLE CAUSE POSSIBLE REMEDY

NuTone IM-3204 Series Specifications

General

Brand	NuTone
Model	IM-3204 Series
Category	Intercom System
Language	English