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the VA-EOL.
7. ZB + /A - ratio (%): Calculate the ratio of speaker open circuit (line A+ and line A-) based on the
[Tolerance (%)---ADJ] setting for reference.
8. ZB + ratio (%): Calculate the ratio of speaker open circuit (line B+ and line A-) based on the
[Tolerance (%)---ADJ] setting for reference.
9. Amp: The amplifier source which is connected to the zone (external amplifier, VO3 etc.).
5.1.11.2.4 Faults
If the impedance of Line A/B becomes abnormal, the main controller/secondary unit will detect and
recognize that error, then generate a [Line A/B Error] global fault. There are three kinds of Line A/B
Errors listed as below:
Line A/B open:
If the value on [Realtime] is greater than 5000 ohm, this fault can be recognized by the main
controller/secondary unit. The "OPEN" error will be shown on [Realtime].
Line A/B short:
The voltage of pin +, - is monitored by the main controller/secondary unit, if the impedance is
approximate to zero. This means there is a short-circuit on main controller/secondary unit. The
"S.C." error will be shown on [Realtime]. If this fault is detected, the internal relay of a zone will
be open to stop output the audio signals to the speaker. Then user needs to click
in
order to close the internal relay, resulting in output the audio signal.
Line A/B bad impedance:
If the value of [Realtime] is greater than [ZA&B] + [Tolerance (%)], or the value of [Realtime] is
less than [ZA&B] - [Tolerance (%)], this fault will be recognized by the main controller/secondary
unit.
See
to know more about the troubleshooting.
5.1.11.3 Amplifiers
The amplifier monitoring is based on the measurement of amplifier's gain.
5.1.11.3.1 Control & display
Reference:
o
Global (global-net):
Get reference: Get all the reference of gain value on all the amplifiers.
Clear reference: Clear all the reference of gain value on all the amplifiers.
Clear fault: Clear the fault state on all the amplifiers.
o
BOUTIQUE device (local-net):
Get reference: Get the reference of gain value on the amplifiers of local net.
Clear reference: Clear the reference of gain value on the amplifiers of local net.
