Table of Contents
Advertisement
1-2-2. PS-735/756 Board (Power Supply Unit)
Replacement
n
The PS-735 board (Power Supply Unit) (Part No. : A-
1256-255-A) or the PS-756 board (Power Supplly Unit)
requires periodic replacement.
PS-735 board: Serial No. 10001 to 10060
PS-756 board: Serial No. 10061 or higher
Replacing of the PS-735/756 board every seven years is
recommended.
Perform replacement in the following procedure.
w
Unplug the power supply cord before replacing the PS-
735/756 board.
n
Do not disassemble the switching regulator.
Removal
1. Remove the top plate. (Refer to Section 1-2-1.)
2. Disconnect the connector (CN101) of harness.
3. Remove the two screws (PSW3x12), and then remove
the plug holder (A) and the plate nut.
4. Remove the three screws (PSW3x6), and then remove
the PS-735/756 board and the insulating sheet.
PSW
3 x 6
Insulating sheet
CN101
Installation
Install a new PS-735/756 board by reversing the steps of
removal.
1-2 (E)
PSW3 x 6
Switching regulator
PS-735/756 board
Plate nut
PSW3 x 12
Plug holder (A)
1-2-3. Replacing the Lithium Battery (CR2032)
A lithium battery is mounted on the CA-72 board for
driving internal watch while the power is turned off.
Replace the battery before the replacement time shown
below comes.
Status of usage of this machine
The battery has never been
replaced since purchase of
this machine.
The battery is replaced by the
new battery last time.
This machine has been used
always power-on.
Use the specified battery in the case of replacement.
Ref. No. Address
Item
BT200
(A-2)
Lithium battery (CR2032): !1-528-174-31
Replacement Procedure
n
When replacing the battery, do not touch the battery
directly as this may corrode electrode.
Start
Replace the battery
Set the clock
*1, *2
(Refer to the System Setup Manual, Section 2-4.)
End
n
*1 : When replacing the battery, a battery error message
("E.50" "BT") may appear. This can be cleared by
setting the clock again.
*2 : If the battery runs out, the clock data cannot be
retained correctly.
Replacement time
Non power-on period of
this machine is shorter than
approx 3 years.
(Because consumption of
battery has started already
at the time of purchase of
this machine.)
Non power-on period of this
machine is approx. 3 years.
Period of usage of thiswith
machine is shorter than 5
years.
(Because the battery life is
5 years and the consumption
of the battery has already
started at the time of
purchase of this machine.)
BKS-R6010 MM
Advertisement
Table of Contents
