Sony DSR-2000A, Service Manual

Page: 54 / 234

3-30
DSR-2000A/2000AP
3-7. Replacement of Lithium Battery
The SY-278A board has the built-in lithium battery as the
countermeasure for power failure. The lithium battery is
attached on top of IC215 (F-5). Life of the lithium battery
is about six years.
Time to exchange the battery is displayed in the time
counter display block and on the monitor display. Replace
the battery when the following message appears.
Time counter display block
Sony part number :
!
1-528-749-12
Backup battery replacement procedure
n
When replacing the battery, insert the replacement battery
with the “
+
” and “
_
” ends correctly oriented. If the
battery’s positive ( + ) and negative ( _ ) terminals are
backward, physical injury or damage to peripheral equip-
ment can be result due to explosion and or leakage of
internal materials.
1. Remove the SY-278A board.(Refer to section 3-5-1.)
2. Insert tip of a flat head (
_
) screwdriver in between the
battery and IC215, and remove the battery.
3. Attach the replacement lithium battery so that the
protrusion of the lithium battery is directed in the
arrow direction as shown, and the battery is firmly
secured by the four claws.
Claw
Claw
Claws
SY-278A board
IC215
Protrusion
Lithium battery