Panasonic NV-VP32GN, Service Manual

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6.3.1. GENERAL DESCRIPTION
There is a RAM in the IC6001, which is backing up the following
data by using the power source of B7751 (Back-up Battery) and
C7752 (Back-up Capacitor: Back-up time is approximately 30
minutes).
1. Programme Navigation Data
2. TV Tuning Data
3. PG Shifter Adjustment Data
4. Option Setting Data
6.3.2. REPLACEMENT PROCEDURE
NOTE:
This work should be finished within 30 minutes so that
the RAM data would not be lost as running out of
current from the Back-up Capacitor C7752.
1. Remove the Top Panel and Mechanism unit with Main
C.B.A by referring to the Disassembling Procedure.
2. Unsolder the Lithium Battery: B7751 and then replace it
with a new one (See Fig. B1).
6.3. HOW TO REPLACE THE LITHIUM BATTERY
NOTE:
The lithium battery is a critical component.
It must never be subjected to excessive heat or discharge.
It must therefore only be fitted in equipment designed specifically for its use.
Replacement batteries must be of the same type and manufacture.
They must be fitted in the same manner and location as the original battery, with the correct polarity contacts observed.
Do not attempt to re-charge the battery or re-use it for any other purpose.
It should be disposed of in waste products destined for burial rather than incineration.
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NV-VP32GN / NV-VP32EE