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DVW-790WS/709WS/707
DVW-790WSP/709WSP/707P P2V1
10. Soldering the Leads of Slip Ring
Assembly
Solder the three leads of the slip ring assembly to
the UDR-9 board on the upper drum assembly.
Red lead : RED pattern
Blue lead : BLUE pattern
Black lead : BLK pattern
11. Brush Assembly Installation
(1) Temporarily attach the brush assembly to the
brush support using the screw as shown in the
figure.
(2) Move the brush base while pressing down the
brush base above the brush support and tempo-
rarily attach the brush assembly using the oth-
er screw.
(3) Tighten the screws in steps (1) and (2).
(4) Check that the brush touches against the slip
ring.
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Once steps (1) to (3) are completed, the height
of the brush and contact pressure against the
slip ring will be automatically adjusted.
(5) Connect the connector on the brush assembly
board.
12. Brush Cover Installation
Align the hole of the brush cover with the shaft of
the slip ring and tighten the two screws.
13. Cleaning of Video Heads and Tape
Running Surfaces
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.)
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After cleaning, be sure to wipe the relevant areas
using a dry cleaning cloth.
Connector
Brush
Slip ring
Slip ring
Brush
Brush base Screw
Temporarily
fasten this
screw first.
Brush support
BLK
BLUE
RED
Lead wires
4-2. Parts Replacement