Green/White - Left Channel Audio Ground
Green - Left Channel Audio
Orange/White - Right Channel Audio Ground
Blue - IR Signal
Blue/White - Status
Orange- Right Channel Audio
Brown/White 24vDC Ground
Brown 24vDC
Top view:
6
7
System Diagram
Troubleshooting
Problem:
Hum in System
Troubleshooting:
Plug all parts of the system into the same outlet to see if the hum goes away.
Try lifting the ground with a ground lifting plug.
Possible Cause:
The different components in the system are connected to different electrical
grounds. This forces electrical currents to find alternate paths to ground causing an audible 60Hz
hum.
Solution:
Plug products into an electrical circuit with a common ground.
Problem:
Troubleshooting:
1. Restart Bluetooth source device
2. Check Source device is connected to Wifi
3. Check the music source is active before pairing
4. The blue LED indicates when devices are paired
5. Try a different A-BUS source.
6. Make sure Bluetooth device is in play mode
Not linking with Bluetooth device or Linking with no audio is present.
Problem:
Troubleshooting:
Verify you have connected the CAT5 cable correctly. Follow the TIA-568A
standard at both ends. Mis-wiring can cause distorted sound, prevent the system from
functioning, or possibly cause damage to the components in the system. Verify you have
connected the speakers in phase. Follow the label on the product. Out of phase speakers can
rob the system of its bass, especially when driving dual-voice-coil speakers.
If no audio is heard, check to make sure that the audio source is playing, then press the power
button on the AB-135 to make sure it is turned on.
Audio quality issues
Pin-out
Local In
24VDC
AB-412
IR Out
Priority
Loc
Sys
C H A N N E L V I S I O N
Source
C
H A N N E L
V
I S I O N
Pwr
Expansion
Out
TM
A-BUS
Input
Zone 1
Zone 2
by
TM
Channel Vision
1-800-840-0288
International Patent Pending
Leisure Tech Electronics Ltd Australia
MADE IN CHINA
AB-412
TM
1x4 A-BUS
Distribution Module
Power supply
(AB-T2410)
AB-135
AB-135
Receiver
Room 2
Use speaker wire rated for use in walls.
AWG 18 or larger is recommended.
Be sure to wire speakers in phase.
+
terminal on the AB-135 to the
+
or red
terminal on each speaker.
1
2
3
Front
Rear
Room 1
Source
C HANNEL V ISION
Pwr
Cat-5 cables
: Use RJ-45 connectors that are wired for the TIA568A
standard. (Using the TIA568B wiring configuration will work, but the left and
right audio information will be reversed).
Expansion Output
: Use this to expand to an additional AB-412. This
connector only provides audio signals to an additional AB-412. It cannot be
used to directly connect a 3rd AB-135 to the system.
Volume indicators
: The LEDs indicate the volume level. If the Status is
<off>, the LEDs will be dark. Pressing the UP/DOWN keys will light the
LEDs for a short period to show the stored volume level.
1
2
3
Problem:
CAT5 audio input (AB-303 or other device) is not working.
Troubleshooting:
Verify you have plugged the CAT5 output on the AB-303 or other A-Bus input
module into the input on the back of the AB-412. Verify you have plugged the zone 1 or zone 2
output of the AB-412 into the input on the back of the AB-135.
Possible Cause:
AB-303 or other A-Bus input module is not connected properly, wire crimped
improperly or plugged into the wrong terminal.
Solution:
Verify wiring, verify RJ-45 crimps
Problem:
RCA Audio input is not working.
Troubleshooting:
Verify source audio is playing, or try another audio source Check speaker
wires to verify nothing is backwards or crossed.
Possible Cause:
There is no signal (or very weak signal) coming from the source, or source is
not compatible with AB-412
Solution:
Make sure the source audio is playing. Try a different source.
AB-303
