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