Panasonic NV-MV20EE, Руководство по обслуживанию

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STEP5.COMPATIBILITY ADJUSTMENT
Refer to the Electrical Adjustment Procedures.
2.2. CAUTION FOR AC MAINS LEAD (NV-MV20GH)
2.3. HOW TO REPLACE THE LITHIUM BATTERY
2.3.1. 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
2.3.2. 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 ).
Fig. B1