Disassembly For Repair; 维修拆卸 - Kenwood NX-800 Service Manual

NX-800
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 / 图 1-1
■ 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 )
22

DISASSEMBLY FOR REPAIR /

维修拆卸
1. 拆卸注意事项
■ TX-RX PCB(TX-RX 单元 A/2) 拆卸
1. 取下 TX-RX PCB 上的所有螺丝和天线端子。
2. 从底座后部方向上看，逆时针 90 度转动电缆的套管 ( ① )，
然后从底座取下电源线 ( ② )。
3. 用手指从底座 ( ③ ) 后部将扬声器插孔提起时，TX-RX PCB
即可从底座取下。
注意 : TX-RX PCB 和 D-sub PCB(TX-RX 单元 B/2) 通过带状
电缆连接。取下时请小心。
4. 翻转 TX-RX PCB 并从连接器 (CN600) 取下带状电缆。( ④ )
5. 从底座取下 TX-RX PCB。
Fig. 1-2 / 图 1-2
CN600
Fig. 1-3 / 图 1-3
■取下扬声器硬件夹具 (J21-8481-03) 和
扬声器座 (J19-5485-12)
1. 从扬声器座挂钩取下扬声器导线。( ① )
2. 从显示单元连接器 (CN902) 取下扬声器连接器。( ② )
3. 取下扬声器硬件夹具时，请在图 2-1 所示位置插入平头螺
丝刀并按箭头方向将其翘起。( ③ )
4. 如需取下扬声器座，请将平头螺丝刀插入扬声器座的凸起
并按箭头方向将其翘起。( ④ )