
Communications
Connectors
Main Board Assembly
fastening screws
Main Board Assembly
fastening screws
Mother Board Assembly
fastening screws
Mother Board
Assembly
Main Board Assembly
R E P 1 1 4 0
Model Name:
RJ–4100
R E P 1 1 4 0
Model Name:
RJ–4100
How to replace the Main Board Assembly
How to replace the Main Board Assembly
GO TO
TEST NO
1000
TEST2
Item
Replacement and Adjustment Procedure
1. Capture back-
up parame-
ters
220
The Main Board is constructed so that backup parameters (“user
parameters” and “adjustment parameters”) can be captured by a
flash memory card.
Caution:
Be sure to capture these backup parameters
before the board is replaced.
1. Be sure to take up backup parameters before the Main Board is
replaced. (Refer to REP1590)
If you are unable to do this operation, ask to see the user setup
list.
Caution:
If you are unable to do this operation, ask to see
the user setup list.
2. Replace the Main Board
1) Disconnect all communications connectors.
2) Open the Control Box.
(Refer to REP1050)
3) Disconnect all Main Board Assembly connectors.
4) Remove the Mother Board Assembly. (4 fastening screws)
5) Remove the Main Board Assembly.
(5 fastening screws)
6) Assembling is the reverse of the removal procedure.
3. The DIP Switches on the Main Board Assembly are for board test-
ing, not for making settings.
→
Continued on next page
2. Replacement
Procedure
3. Set DIP
Switches