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NX-800/800H
14
1. Precautions on Disassembly
■
TX-RX PCB (TX-RX unit A/2) Disassembly
1. Remove all screws and antenna terminals on the TX-RX
PCB.
2. Rotate the bush of the power supply cable 90 degrees
counterclockwise as viewed from the rear of the chassis
(
q
) and remove the power supply cable from the chas-
sis (
w
).
3. When the speaker phone jack is pushed up, using your
fi nger, from the rear of the chassis (
e
), the TX-RX PCB
is removed from the chassis.
Note: The TX-RX PCB and D-sub PCB (TX-RX unit B/2)
are connected with a fl at cable. Remove them carefully.
4. Turn the TX-RX PCB over and remove the fl at cable from
the connector (CN600). (
r
)
5. Remove the TX-RX PCB from the chassis.
:
@
Fig. 1-1
.
Fig. 1-2
CN600
;
Fig. 1-3
■
Removing the speaker hardware fi xture
(J21-8481-03) and holder (J19-5485-12)
1. Remove the speaker lead from the holder hook. (
q
)
2. Remove the speaker connector from the display unit
connector (CN902). (
w
)
3. When removing the speaker hardware fixture, insert a
fl at-head screwdriver at the position shown in Figure 2-1
and tilt it in the direction shown by the arrow. (
e
)
4. To remove the holder, insert a fl at-head screwdriver into
tab of the holder and tilt it in the direction shown by the
arrow. (
r
)
CN902
@
:
.
Fig. 2-1
;
Fig. 2-2
DISASSEMBLY FOR REPAIR