MZC-88 Installation Instructions Page 107
PROBLEM SOLUTION
Audio
No Audio From External Source a) Confirm source is turned on and playing.
b) Check connection between external source and MZC-88.
No Audio In Zone a) Confirm zone is turned on.
b) Confirm volume is turned up and un-mute.
c) Confirm speaker connections.
d) Confirm zone audio routing command programming.
e) In expanded systems, confirm source loop connections
between MZC-88’s.
No Paging Audio a) Confirm paging source is turned on.
b) Confirm paging source connection to “Phone Page In”.
c) Confirm trigger voltage and polarity to Doorbell/Status
In.
d) Confirm zone audio paging routing command
programming.
d) Confirm Doorbell/Status In programming in EZ-Tools.
Video
No Video From External Source a) Confirm source is turned on and playing.
b) Check connection between external source and MZC-88.
No Video In Zone a) Confirm zone is turned on.
b) Confirm zone TV/monitor is turned on and switched to
the correct input.
c) Confirm TV/monitor connections.
d) Confirm zone video routing command programming.
e) In expanded systems, confirm source loop connections
between MZC-88’s.
No Paging Video a) Confirm paging source is turned on.
b) Confirm paging source connection to “Video Page In”.
c) Confirm trigger voltage and polarity to Doorbell/Status
In.
d) Confirm zone video paging routing command
programming.
d) Confirm Doorbell/Status In programming in EZ-Tools.
Tuner
Reception a) Confirm AM/FM antenna connections to HED-1.0.
b) Confirm HED-1.0 connection to MZC-88.
c) In expanded systems, confirm each MZC-88 has a
dedicated HED-1.0 and AM/FM antennas.
d) Confirm zone audio routing command programming.
Stations/Presets a) Confirm preset programming for Tuner 1 and Tuner 2.
b) In expanded systems, confirm preset programming for
Tuner 1 and Tuner 2 in all MZC-88’s.
c) Confirm zone keypad preset select command
programming.
TROUBLESHOOTING
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