Sony MAV-70, Installation Manual, Page: 35 / 48

2-3 (E)
MAV-70
2-4. Power Supply Unit Replacement
When the POWER A or POWER B indicator on the front
panel flashes in red, any trouble occurs in the power supply
unit.
In such a case, check that the power cord is connected
tightly.
If indicator flashes in red though the power cord is con-
nected, replace the power supply unit corresponded to the
flashing indicator. The power supply unit on the left is
POWER A, and the power supply unit on the right is
POWER B.
n
The status of the power supply unit can be checked on the
menu “Service : Device”. (For the menu operations, refer
to the operation manual.)
.
“Rdy” : Legal status
.
“Err” : Illegal status
.
“Non” : Not mounted
When two power supply units are installed in the MAV-70,
either one of two power supply units can be replaced
during the power on.
m
When replacing the power supply unit during the power
on, the following precautions should be followed.
.
Be sure to put on the earth-band to establish a ground. If
not, this may cause malfunction.
.
Be careful not to give any shock to HDD.
.
Replace the power supply unit within three minutes in
consideration of air cooling effect.
Replacement part
Please order the BKMA-PS70 (Redundant Power Supply
Unit).
n
The parts in a power supply unit cannot be replaced. Be
sure to replace the whole power supply unit.
>Exit Service : Device
Device
Power Supply A
Power Supply B
Err 3200
Rdy
STS Hours (h)
2400
Removal procedures
1. Remove the ornamental panel A. (Refer to the Section
1-7.)
2. Loosen the four screws (
⇐
marked) of the front panel
A fully, and open the front panel A.
n
Be careful that the stopper washers don’t come off the
screws.
3. Make sure that indicator of the power supply unit to be
replaced lights off.
4. Turn off the power switch corresponded to the power
supply unit to be replaced.
n
Be careful not to turn off the other power switch.
5. Remove the four screws fixing the power supply unit.
6. Pull the levers in the direction shown by the arrows,
then grasp the handles and pull out the power supply
unit.
n
When removing the power supply unit other than replace-
ment, to prevent contact detects of the power supply unit,
do not touch the connector of the removed power supply
unit.
Power supply unit
Levers
PS 2 x 6
Handle
Handle
Front panel A
Indicator
2-4. Power Supply Unit Replacement