Yamaha SB168-ES Service Manual page 59

4. Single unit test
Loop back the Input and Output to conduct the sound test of the SB168-ES only.
Set the DIP switch as follows and check input and output of each channel.
AD1 – 8ch → DA1 – 8ch Through mode (for service test)
AD9 – 16ch → DA1 – 8ch Through mode (for service test)
In this case, setup of all the channels are fi xed as follows.
Parameter Fixed setup
+48V OFF
HPF OFF
HPF Freq (80Hz)
Gain +10dB
* If detailed inspection is needed, set the DIP switches to normal mode and check by connecting the PC with AVS-ESMonitor
installed.
SB168-ES
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