Battery End Check (Vc-253 Board) - Sony DCR-PC110 Service Manual

3. Battery End Check (VC-253 board)

Check the battery end voltage.
Mode Camera recording and VTR playback
Subject Arbitrary
Note: It is normal though the following symptoms appear during the battery
end check.
1) The message of "FOR InfoLITHIUM BATTERY ONLY" on
the LCD or viewfinder screen.
2) The tally lamp is flashing.
Connection:
1) Connect the regulated power supply and the digital voltmeter
to the battery terminal as shown in Fig. 5-3-4.
Checking method:
1) Adjust the output voltage of the regulated power supply so that
the digital voltmeter display is 6.0 ± 0.1Vdc.
2) Turn off the power supply.
3) Turn on the HOLD switch of the adjustment remote
commander.
4) Turn on the power supply.
5) Load a cassette, and set to the camera recording mode.
6) Decrease the output voltage of the regulated power supply so
that the digital voltmeter display is 5.5 ± 0.1Vdc.
7) Record the camera signal for a minute.
8) Playback the recorded section and check that the playback
picture and sound are normal.
Regulated power supply
5.50 ± 0.1 Vdc
Digital voltmeter
Fig. 5-3-4.
5-42