9
All the input on this equipment are unbalanced inputs. By installing a separated IT-450 balanced transformer,
microphone inputs 1 to 5 and Auxiliary 4 can be balanced. The following procedure below is adding IT-450
balance transformer.
BALANCED INPUT
Please leave this work to a professional expert.
There is a high voltage component inside, and opening or modifying
the case may cause fire or electric shock.
1
Turn off the power switch and unplug the power plug.
2
Remove the 4 screws on both sides of the machine
and remove the case.
3
Unscrew the 3 screws on the the bottom of the unit
and remove the bottom plate.
Please do not work while the power plug is plugged in the outlet.
It may cause electric shock.
5
Install IT-450
5-1
Inserts the IT-450 onto the upper surface of the PCB board.
5-2
Solder from the back side of the board.
5-3
Trims the IT-450 leads
6
Cover back the plate and case.
Nominal Designation 4
MIC 1
MIC 2
MIC 3
MIC 4
MIC 5
MIC 1
MIC 2
MIC 3
MIC 4
MIC 5
Nominal De-
signation 4
Bottom plate
4
Use a nipper or similar tool to cut the 2 jumpers wire corresponding to the inputs that is to be
balanced. (Jumper lines are indicated by the arrows below.)
Make sure that the cut jumper wires do not touch each other.
Caution
WARNING
ARNING
W
