Instruction Manual

23
Pre-Amplifier Battery Check
(1) Checking the battery power
● Be sure to check all four pre-amplifiers: blue, red, yellow, and green.
● Make sure that the battery level is high enough before use.
When checking the battery level, turn on the pre-amplifier and the main unit.
Check the remaining battery levels of the blue, red, yellow, and green units on the main unit screen.
If the battery level is low, insert the charging AC adapter to charge the battery.
(1) Checking the battery power