Sony Digital Betacam DVW-707 Maintenance Manual page 112

4-2. Parts Replacement
5. Drum Assembly Installation
(1) Hold the new drum assembly and connect the
three connectors (CN1, CN2 and CN3) which
are disconnected in step 3.
m
. Be sure to hold the areas where video heads
are not installed.
. Take care not to touch the drum assembly
against the CTL head, CUE/TC head and the
peripheral tape guides.
(2) Put the two positioning pins of the chassis to
the holes of the drum assembly.
(3) Move the drum assembly a little and check
that the drum assembly is inserted to in the po-
sitioning pins.
(4) Tighten the three screws.
6. Connection of the Brush Assembly
Connector
Connect the connector to the brush assembly
board.
7. Video Head Cleaner Installation
Put the video head cleaner onto the surface of the
unit using a pair of tweezers and tighten the screw.
8. Cleaning of Video Heads and Tape
Running Surface
Clean the following areas using a cleaning cloth
moistened with cleaning fluid.
. Video heads (Refer to section 7-1-2 of Mainte-
nance Manual Part 1.)
. Tape running surface of the upper drum (Refer to
section 7-1-2 of Maintenance Manual Part 1.)
. Tape running surface and lead of the lower drum
(Refer to section 7-1-3 of Maintenance Manual
Part 1.)
n
After cleaning, be sure to wipe the relevant areas
using a dry cleaning cloth.
4-28
PSW 2x5
Drum assembly
PSW 2x5
Video heads
PSW 2x5
Positioning pin
DVW-790WS/709WS/707
DVW-790WSP/709WSP/707P P2V1