Sony Betacam SX DNV-5 Maintenance Manual page 130

3-3-16. Tape Guide (S1, T1, T3) Replacement
Removal
1. Tape guide removal
(1) As shown in the figure, put the tape guide
adjustment screwdriver on the upper flange.
And loosen the screw at the upper part of the
tape guide about 1/4 turn counterclockwise.
(2) Turn the control knob of the screwdriver
counterclockwise and remove the upper
flange.
(3) Extract the roller assembly.
At that time, the lower flange and compres-
sion spring can be removed.
Installation
2. Tape guide installation
(1) Pass the compression spring through the
guide shaft.
(2) Pass the lower flange through the guide shaft.
(3) Pass the roller assembly through the guide
shaft.
(4) Insert the upper flange until it strikes against
the guide shaft.
n
Perform step (4) with the setscrew protruded
about 0.4 mm(S1/T1 tape guide) or 0.6 mm(T3
tape guide) from the upper surface of the upper
flange when the upper flange or setscrew is
replaced.
Adjustment after replacement
3. Tape guide height adjustment
(Refer to "4-2-1. Tape Running Adjustment".)
3-80
Tape guide
adjustment
screwdriver
Setscrew
Upper flange
Tape guide
Upper flange
Roller assembly
Lower flange
Compression
spring
DNV-5
DNW-7/90/90WS