Tracking Adjustment - Sony DSR-300 Service Manual

5-4. TRACKING ADJUSTMENT

Equipment and Tool
. Alignment tape, XH2-1AST
. RF extension tool
. Oscilloscope
Setting
1. Connect the RF extension tool to CN775 of RP-
91 board.
2. Connect the oscilloscope as follows.
CH1: RF/RF extension tool (RF waveform)
CH2: JSW/RF extension tool (Switching
waveform)
Trigger: CH2
3. Select maintenance menu No. 604-10, center ITI
mode for tracking adjustment. (Refer to Section
5-2.)
4. Insert an alignment tape into the unit.
Adjusting Method
1. Set the PLAY mode.
2. Rotate the upper flange of the TG-3 guide and
adjust so that the RF waveform at the entrance
becomes flat.
3. Rotate the upper flange of the TG-5 guide and
adjust so that the RF waveform at the exit
becomes flat.
Note: Do not rotate the tilt adjustment screws
of TG-4 and TG-5.
5-8
TG-1 guide
TG-3 guide
TG-6 guide
<RF waveform>
Entrance
TG-2 guide
TG-4 guide
TG-4 tilt adjustment
screw (Do not rotate)
TG-5 guide
TG-5 tilt adjustment screw
(Do not rotate)
Exit
Normal
Abnormal at
entrance
Abnormal at
exit
DSR-300/P(E)/V1