Eye Sensor Check; Alignment Check (Fdd Unit) - Sony MVC-FD97 Service Manual

4. Eye Sensor Check

Mode
Subject
Measurement Point
Measuring Instrument
Checking method:
Order Page Address Data
1 0 01 01
2
3 2 41
4
5 2 41
Processing after Completing Adjustments:
Order Page Address Data
1 0 01 00
CAMERA
White chart (30 cm × 30 cm)
Displayed data of page: 2,
address: 41
Adjusting remote commamder
Procedure
Set the white chart. (15 cm from
the front of the EVF)
Check the data changes to "00".
Set the white chart. (8 cm from
the front of the EVF)
Check the data changes to "04".
Procedure

5. Alignment Check (FDD Unit)

Confirm that the FDD alignment is within the specifications. If
deviated, reading and writing data from and to floppy disk be-
come impossible.
Or compatibility of floppy disk with other machines can be lost.
Mode
Signal
Measurement Point
Measuring Instrument
Specified Value
Checking method:
1) Disconnect the adjusting remote commander.
2) Insert the alignment disk TFD2-1 (+) (+17.5 um).
3) Playback arbitrary signal and check that the playback picture
is normal.
4) Insert the alignment disk TFD2-2 (–) (–17.5 um).
5) Playback arbitrary signal and check that the playback picture
is normal.
5-50
PLAY
Alignment disks (TFD2-1 (+))
and (TFD2-2 (–)):
Arbitrary signal
Check on LCD screen
The playback pictures should be
normal