– 23 –
Replacement of Back-up Battery
The back-up battery for clock is designed to serve for more than
seven years under normal service conditions (room temperature and
ordinary humidity).
When replacing the battery, take note of the following:
•
Perform the above “Clock IC Back-up Check” and remedy the
cause of battery consumption.
•
The open voltage of the battery as removed is 3.0 V or more when
it is new. If this voltage is 2.0 V or less, then battery is fully con-
sumed and needs to be replaced.
•
After the battery is replaced, perform the “Clock IC Back-up
Check” again and set the clock.
•
The coin type lithium battery (CR2032) is used for replacement.
* For description of the clock setting, see page 5.
Adjustment and Check Locations :
DIGITAL board – component side –
(S-END)
RV502
(T-END)
RV501
TP
(RF)
TP
(SWP)
TP
(T-END)
TP
(S-END)
TP
(BATT+)
TP
(BATT–)
TP
MAIN–
TEST
END SENSOR ADJ
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