Sony MDDISCAM DCM-M1, Service Manual

Page: 182 / 198

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3-3. Camera System Adjustment
1. Zoom Center Adjustment
Adjust the center voltage of Zoom control to the center of microcomputer A/D value.
If deviated, zooming will be executed even with the Zoom control in center position.
Adjusting method
Steps
Page Address Data Work Description
1 06 50 Read the displayed data (D
50
).
2 0F 5D D
50
Set the data read in step 1, and press the
y
key.
2. Hall Adjustment
To detect the lens iris position, adjust the gain and offset of the amplifier.
If deviated, the iris will oscillate or the white balance between indoor and outdoor will be disordered.
Note:
For the data display, the data at the time when address was set is displayed, and it is not updated.
Check data variation while repeating address change and resetting (change address from “02” to “01”, and then return it to “02”).
Adjusting method
Steps Page Address Data Work Description
1 06 02 Check that the data is “00”.
2 06 94 8A Press the y key.
3 06 95 17 Press the y key.
4 06 01 6D
Press the y key.
(Hall is adjusted, and the data are automatically entered to page: F, address: 1E, 1F, 70.)
5 06 02 Check that the data becomes “01”. (Note)
6 06 01 00 Press the
y
key.
Processing after completion of adjustment
Steps Page Address Data Work Description
1 06 01 00 Press the y key.
2 06 94 00 Press the y key.
3 06 95 00 Press the y key.
Subject Arbitrary
Measurement point Display data of page: 06, address: 50
Adjustment page 0F
Adjustment address 5D
Note:
Do not touch the Zoom lever during adjustment.
(The Zoom lever must be in center position.)
Subject Arbitrary
Adjustment page 0F
Adjustment address 1E, 1F, 70