IVIE MPS 2300, Руководство пользователя

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Operational
troubleshooting lvie Technologies
MPS 2300
Page, but No Music.
Music lnout Signal LED’s (yellow) not active. Make sure
music source is operating. Check rear panel input
connections, Music Gain, and Sensitivity switches. If
connections are good, make sure source is working by
plugging it into another piece of equipment, or another
channel of the 2300. Sometimes the problem is corrosion
of the contacts. If connections, input levels, sensitivity
switches and source are good, the problem is in the unit.
Music lnout Signal LED’s (yellow) active. Check front panel
Music Volume and Music Source Assignment selector.
Make sure setting is on an active input, not on Off/Remote
(unless Remote is used) or an inactive input channel. If
using Remote then check both the setting of the remote
source selector, remote music volume and the connections.
If setting the front panel control from Off/Remote to an active
input restores sound, then the problem is in the remote or
remote wiring/connections.
Music, but No Page.
The following guidelines illustrate how to use the front
panel indicators to diagnose absence of paging function.
We will use the yellow Mic Input Signal and the green Mic
Assignment LED’s to determine the problem. Key the Mic
and attempt to page while watching the LED's.
Mic lnout Signal (yellow) works, but no Mic Assianment
(green): shows that Mic signal is present but Mic key is not
working. Confirm by grounding desired Mic Key on rear
panel with jumper wire. If this restores operation, check Mic
Key wiring and Mic switch.
Mic Assianment (green) works but no Mic Input Signal
(yellow): shows that there is no signal from the mic input.
Check Mic Gain on rear panel, and then substitute a second
mic or signal source.
If both yellow and green Mic LED’s are working, check
Paging Volume (front panel) for that Zone. Otherwise, the
unit requires servicing.
Weak but Clear
Usually indicates lack of input signal or incorrect gain
Sound.
(Volume) adjustment at some point. Check settings of