Sony SVT-RA168, Руководство по обслуживанию

Страница: 57 / 100

3-3
SVT-RA40/RA168
3-1-5. F. Slow Tracking Confirm and Adj.
Measuring Point Measuring Equipment Adj. Condition
Picture of Color bar generator Self-recording
monitor TV (Monoscope pattern (8 H) mode, PLAY
signal), Monitor TV mode, Blank tape
Adj. Condition Adj. Condition
TRACKING buttons —
MENU RESET button
EJECT button
1. Insert blank VHS cassette tape and record monoscope
pattern on the 8 H mode.
2. Play back the self-recorded tape and then set the VCR
in the STILL mode.
3. Change to F. Slow play back mode by pressing REC
button 3 times. These 3-push must be done within 3
seconds, and last push must be kept pressed for 0.5
seconds.
4. Set the tracking control position to the center by
pressing TRACKING ( + ) and ( _ ) buttons simulta-
neously, and confirm the absence of noise in the slow
playback image on the monitor screen at this centered
tracking position. Starting from this centered tracking
position, push the ( + ) and ( _ ) buttons and confirm that
no noise appears before the fifth push in either direc-
tion.
If noise appears before the fifth push, fine-tune with
the front tracking adjustment button so that no noise
appears before the fifth push, then press the EJECT
button to make this point the new tracking center.
(When pressing the EJECT button to enter this new
tracking center, the tracking should be displayed.)
The FLD counter readout changes to “P – –” for
approximately 1 second in order to confirm that data
has been entered.