Hitachi UX Twin Nozzle, Руководство по обслуживанию

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3-48
3.3.15 Multiple Power Supply 1 and 2
[Function]
- AC input: AC100 to 240V (50/60Hz)
DC output: +3.4V, +5.1V, +12V, -12V, +24V
[Note at the replacement]
- In a few seconds after turned off the power, residual voltage is remaining on the parts
of multiple power supply.
- When replacing the multiple power supply, turn off the power and wait for more than
10 seconds, pull the plug out of socket, and then access the multiple power supply.
- Multiple power supply 1 is placed at front side in the main unit. Multiple power supply 2 is
placed at rear side in the main unit. For the details of those positions, refer to step(7) of
[Replacement procedures of multiple power supply].
10 seconds, pull the plug out of socket, and then access the multiple power supply.
[Replacement procedures of multiple power supply]
(1) Turn off the main power and wait for more than 10 seconds.
Then pull the plug out of socket.
(2) Remove the fixing screws (6 positions) and remove the side cover.
(It is not necessary to remove the inlet base nor inlet cover.)
Caution against an electric shock
In order to replace the multiple power supply, it is necessary to access inside the side
cover which has the area where AC power is applied.
The multiple power supply has the area the high voltage is applied. In order to avoid an
electric shock, turn off the power and wait for more than 10 seconds, and then pull the plug
out of socket. Lastly access the multiple power supply.
Side cover
Fixing screws
(4 locations)
Main power
switch
Inlet
cover
DC output for
Multiple Power Supply 1: CN2 of EZJ133 board
Multiple Power Supply 2: CN28 of EZJ133 board
AC input connector (8pin)
Multiple Power Supply 1: CN3 of EZJ139 board
Multiple Power Supply 2: CN1 of EZJ139 board
Fixing hole of hexagonal spacer
(Two positions)
CN2
CN4