3-4 (E)
VSR-2000A
Power supply unit
Levers
Indicator
PS3
x
6
PS3
x
6
10. Remove the IF-678 board as follows.
(1) Remove the four screws (PSW 3
x
6) and remove the
power supply guide.
(2) Remove the five screws (PSW 3
x
6) and remove the
two screws (BVTT 3
x
6). Then remove the IF
position setting plate.
(3) Remove the five IF-678 boards.
11. Install the IF-883 board as follows.
Install the five IF-883 boards by reversing the IF-678
board removal procedure as shown in step 10.
12. Install the power supply unit as follows.
Install the power supply unit by reversing the step 9.
c
Tighten the screws of power supply unit.
If the power supply unit is not secured completely, the
contact resistance of the power connector will be
increased and may cause parts damage or smoking.
13. Install the cover and rack angle as follows.
Install the cover and rack angle by reversing the step 8.
9.
Remove the power supply unit as follows.
(1) Remove the four screws.
(2) Pull the lever in the direction of the arrow. Pull out the
power supply unit by holding the handle.
n
Be careful not to touch the connectors of the power supply
unit in order to prevent the power supply unit from poor
electrical contact.
PSW3
x
6
PSW3
x
6
Power supply guide
IF position setting plate
BVTT3
x
6
IF-678 boards
Upgrading
