Sony DSR-300 Service Manual page 245

5-5. TG-1, TG-2 AND TG-3 GUIDES
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. Check that the tape runs along the TG-1 upper
flange (no space between the two).
If it does not, rotate the upper flange in the
clockwise direction, and adjust so that it does.
3. Check that the tape runs along the TG-2 lower
flange (no space between the two).
If it does not, rotate the upper flange in the
counterclockwise direction, and adjust so that it
does.
4. Check that the tape runs along the TG-3 upper
flange (no space between the two).
If it does not, rotate the upper flange in the
counterclockwise direction, and adjust so that it
does.
DSR-300/P(E)/V1
Upper flange
Lower flange
TG-3 TG-2 TG-1
TG-1 upper flange
TG-3 upper flange
TG-2 upper flange
5-9