Sony GV-D200 Service Manual page 54

2. Battery End Adjustment
Set the battery end voltage.
If the voltage is incorrect, the life of the battery will shorten.
The image at the battery end will also be rough.
Mode Playback
Signal Arbitrary
Measurement Point Display data of page: 2, address: 5D
Measuring Instrument Adjustment remote commander
Adjustment Page D
Adjustment Address 48, 49
Connection:
1) Connect the regulated power supply and the digital voltmeter
to the battery terminal as shown in Fig. 5-3-4.
Preparations before adjustments:
1) Adjust the output voltage of the regulated power supply so that
the digital voltmeter display is 6.1 ± 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 playback mode.
Adjusting method:
Order Page Address Data
1 0 01 01
2
3 2 5D
4 D 48 Dref Set the data, and press PAUSE button.
5
6
7
8 D 49 D
49
9 0 01 00
Note 1: Refer to Table 5-4-1. "Hexadecimal-decimal conversion table" of
"5-4.Service mode".
Digital voltmeter
Regulated power supply
5.30 ± 0.01V
Procedure
Set the data.
Decrease the output voltage of
the regulated power supply so
that the digital voltmeter display
is 5.30 ± 0.01Vdc.
Read the data, and this data is
named Dref.
Convert Dref to decimal notation,
and obtain Dref'. (Note1)
Calculate D ' using following
49
equation. (decimal calculation)
D '=Dref'+8
49
Convert D ' to decimal notation,
49
and obtain D . (Note1)
49
Set the data, and press PAUSE button.
Set the data.
Main unit
Battery terminal
Fig. 5-3-4.
5-19