Sony DNW-A100 Maintenance Manual page 208

5-3. Drum Assembly Replacement
(4) Adjust the two positioning holes of the drum
assembly with the two positioning pins of the
chassis, and install it to the chassis while
passing the harnesses under the chassis.
m
. Be careful not to touch the AT head and
tape guide at that time.
. Be careful not to put the harness between
the lower drum and the chassis.
(5) Confirm that the drum assembly is firmly
inserted into the positioning pins.
(6) Rotate the upper drum assembly manually
counterclockwise and position the screw hole
of the upper drum assembly with the dented
portion.
(7) Temporary tighten the screw.
(8) Temporary tighten other two screws in the
same way as in steps (6) and (7).
(9) Gradually tighten the three screws in the
order of counterclockwise.
Tightening torque: 78.4
{8 kgf . cm}
(10)Connect the harness of the demagnetization
head assembly to the connector on the
harness rail, then clamp it in the harness rail
as shown in the figure.
6. Connect the Flexible Board
Connect the flexible board to connector CN2 on
the SE-341 board, then lock.
7. Cleaning
Clean the portions below.
. Rotary heads (Refer to Section 5-2-3 in Mainte-
nance Manual Part 1.)
. Lower drum's tape running surface
(Refer to Section 5-2-4 in Maintenance
Manual Part 1.)
n
After cleaning, wipe using a dry cleaning cloth.
5-24
10 _2 N . m
x
Harness rail
Demagnetization head assembly
Board cover
Screw
hole
Screw(C3 x 8)
Drum assembly
Connector
Attach the Drum Assembly
Brush slip ring assembly
Flexible board
Screws
(C3 x 8)
CN2
SE-341
board
Plate MR
Harness
DNW-A100/A50/A45
DNW-A100P/A50P/A45P