User manual
Table Of Contents
5 LED [Fault]
Error indication for channels CH-A to CH-D. These LEDs light up when one of the protective circuits triggers (see
Ä
Chapter 7 ‘Technical specifications’ on page 21).
When turning the device on, the LEDs light up for three seconds. During this time, there is no signal present at the
output yet. Once the LEDs turn off, the device is operational.
6 LED [Thermal]
Over temperature indicator for the channels CH-A to CH-D. These LEDs light up when the respective heat sink
exceeds a certain temperature.
When turning the device on, the LEDs light up for three seconds. During this time, there is no signal present at the
output yet. Once the LEDs turn off, the device is operational.
7 [CH-A …-D]
Controls for input gain of channels CH-A to CH-D.
Connections and controls
D4-500
17