Sony HDW-750 Maintenance Manual page 335

Removal
1. Removing the tape guide
(1) Install the screwdriver (Tool) TG adjustment
on top of the upper flange as shown.
Loosen the set screw on top of tape guide by
rotating it by 1/4 turn counter-clockwise.
(2) Rotate the knob of the screwdriver (Tool) TG
adjustment itself counter-clockwise and
remove the upper flange.
(3) Remove the tape guide.
At this point, the lower flange and the
compression (coil) (ST) spring can be
removed.
Installation
2. Installing the tape guide
(1) Install the compression (coil) (ST) spring to
the guide shaft.
(2) Install the lower flange to the guide shaft.
(3) Install the tape guide to the guide shaft.
(4) Screw-in the upper flange to the guide shaft
as far as it can go.
n
When the upper flange or the set screw is re-
placed, establish the state that the set screw
exceeds the top surface of the upper flange by 0.4
mm for the S1 and T1 tape guides and 0.6 mm for
the T3 tape guide. Then perform step (4).
3. Cleaning of tape guide
Clean the tape guide using a cleaning cloth
moistened with cleaning fluid.
n
After cleaning, be sure to wipe the cleaning fluid
off the cleaned portions using a dry cleaning
cloth.
Adjustment after Replacement
4. Tape guide height adjustment
(Refer to Section 8-2-1.)
HDW-750/750CE V1
Screwdriver (Tool)
TG adjustment
Set screw
Upper flange
Tape guide
* : Depending on the time of production at the factory, some products do not have the
lower flange in the T3 tape guide of the pinch arm assembly.
7-17. S1, T1, T3 Tape Guide Replacement
Upper
flange
Tape guide
Lower flange
Compression
(coil) (ST)
spring
*
7-65