Problem Solving; Blank Screen; The Number Of Sources And Volume Does Not Appear On Screen; Maintenance Instructions - Johnson Controls VCC-64 User Manual

User Manual: VCC-64
The unit located closest to the system will be connected to the interface, and to the next VCC-
64. The last VCC-64 in the bus will not have any connection to a consecutive device.
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PROBLEM SOLVING:

3.1

Blank Screen

If the display is blank, check the power supply. Verify that the wiring has been connected
according to chapter 2.2.1. If the power indicator light is on, reboot the system by disconnecting
the power and reconnecting it again. If, after restarting the system, nothing appears in the
screen then contact Technical Support of LDA.
If the power indicator is off, the device is not receiving power and therefore will not work
properly.
3.2

The Number of Sources and Volume Does Not Appear on Screen

If the number of sources and volume does not appear on screen, this is an indication to the
system that there is no connection. Restart the device by disconnecting the power and
reconnecting it again. If the problem persists and is not resolved, check the wiring as described
in section 2.2.
If, after performing these tests the problem persists, contact the support service of LDA.
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MAINTENANCE INSTRUCTIONS

Generally, the equipment requires a reduced periodical maintenance.
The frequency of maintenance should be adjusted depending on the installation conditions of
the system.
Warning:
• Use only a soft, lint-free cloth to clean the system.
• Disconnect the device from any external power source.
• Disconnect all external devices.
• Keep it away from any liquid.
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Figure 2 - Cabling
Rev.0.3