Sony DVCAM DSR-PDX10 Service Manual page 225

DSR-PDX10/PDX10P
2-4-2. Tracking Adjustment
1) Play the tracking alignment tape (XH2-1A1) (Ref. No. J-18) back.
2) Adjust TG3 guide until the envelope of entrance side waveform
becomes flat.
3) Adjust TG6 guide until the envelope of exit side waveform
becomes flat.
Note: Do not touch or adjust TG3 and TG4 guide zenith adjustment screw.
TG3 guide
TG4 guide
TG5 guide
TG6 guide
Entrance side
TG1 guide
TG2 guide
TG3 and TG4 guide zenith
adjustment screw.
(Do not touch or rotate.)
Fig. 6-2-32.
Exit side
Normal
Entrance side is
defective
Exit side is defective
Fig. 6-2-33.
2-4-3. TG3 Guide Adjustment
1) Play the tracking alignment tape (XH2-1A1) (Ref. No. J-18) back.
2) Run the tape in FWD mode. Confirm that tape runs while
keeping contact with upper flange of TG3. If any clearance is
found between top flange and tape, rotate the adjustment nut
in clockwise direction until tape runs while keeping contact
with upper flange of TG3.
Adjustment nut (TG3)
When tape runs while keeping contact with upper flange of
TG3, confirm that the tracking waveform does not change. If
the tracking waveform has poor amplitude at the entrance side
as shown, perform tracking adjustment of entrance side.
After entrance side is adjusted, establish the RVS mode. Make
an attempt to rotate the TG3 adjustment nut by 180 degrees in
the counter-clockwise direction in order to confirm that tape
rises upward. Upon confirmation, return the TG3 adjustment
nut to the original position.
Upper flange
TG3
6-70
TG2 guide
Upper flange
TG2
TG3 TG1
Fig. 6-2-34.
Fig. 6-2-35.
TG2
TG1
Fig. 6-2-36.