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2.4.
Power indicator LED is lit normally (green or
orange).
Check each connector.
Check each connector.
Check the voltage of each
department.
Check the voltage of each
department.
Check the operation of the
switching relay and speaker
relay.
Check the operation of the
switching relay and speaker
relay.
Check the Signal line.
Check the Signal line.
3. The power turned on, but a sound does output normally. (Single channel)
Power indicator LED is lit normally (green or
orange).
