Kenwood NX-220 Service Manual page 11

DISASSEMBLY FOR REPAIR /
■ Removing the mechanical stopper
(C2 model only)
1. Pick up and lift the tab of a mechanical stopper using a
pair of tweezers. q
Note: Take care not to damage the packing.
2. Remove the mechanical stopper w.
■ Removing the TX-RX unit from the chassis
1. Remove the fl at cable from the connector (CN2). q
2. Remove the Speaker lead wire from the connector (CN4).
w
3. Remove the PTT FPC from the connector (CN3). e
4. Remove the VOL/SEL FPC from the connector (CN1). r
5. Remove the packing t from the SP/MIC jack.
6. Remove the 14 screws y.
7. Anchor the screw hole of the TX-RX unit using the tip of a
pair of tweezers as shown in the fi gure. Then lift the TX-
RX unit to remove it from the chassis. u
■拆下机械挡块 ( 仅限 C2 型号 )
1. 用镊子夹住机械挡块的扣环并将其提起。①
注意 ： 小心不要损坏密封件。
2. 拆下机械挡块②。
■从底座拆下收发单元
1. 从连接器 (CN2) 上取下扁平电缆。①
2. 从连接器 (CN4) 上取下扬声器导线。②
3. 从连接器 (CN3) 上取下 PTT FPC 扁平电缆。③
4. 从连接器 (CN1) 上取下 VOL/SEL FPC 扁平电缆。④
PTT FPC
PTT FPC 扁平电缆
Flat cable
CN4
扁平电缆
CN3
CN1
CN2
TX-RX unit / 收发单元
5. 从 SP/MIC 插孔上取下密封件⑤。
6. 拆下 14 颗螺钉⑥。
7. 用镊子的末端夹住收发单元的螺孔，如图所示。然后，提
起收发单元，将其从底座上取下。⑦
NX-220
维修拆卸
11