Kenwood TK-3148 Service Manual page 38

TK-3148
Repair Jig (Chassis)
Use jig (part No.: A-10-4060-04) for repairing the TK-3148.
Place the TX-RX unit on the jig and fit it with screws.
The jig facilitates the voltage check and protects the module
when the voltage on the flow side of the TX-RX unit is checked
during repairs.
Battery Jig (W05-0909-00)
Connect the power cable properly between the battery jig
installed in the transceiver and the power supply, and be sure
output voltage and the power supply polarity prior to switching
the power supply ON, otherwise over voltage and reverse
connection may damage the transceiver, or the power supply
or both.
Note: When using the battery jig, you must measure the
voltage at the terminals of the battery jig. Otherwise, a slight
voltage drop may occur within the power cable, between the
power supply and the battery jig, especially while the
transceiver transmits.
How to Remove the Cable
1. Gently draw out both sides of the connector lever uniformly
in the direction of the arrow with tweezers.
(CN303, CN304, CN305, CN306)
2. Gently rise up the connector lever in the direction of the
arrow with a fine regular screwdriver or tweezers.
(CN301, CN302, CN400)
38
ADJUSTMENT /
Tweezers
镊子
Regular screwdriver
常用的改锥
Lever
调整
维修机架（机壳）
使用机壳（A-10-4060-04）维修 TK-3148。将 TX-RX 单元放置
在机壳上，并且拧上螺钉。
在维修过程中， 当需要在TX-RX单元的电路板上检测到电压
时，机壳可以方便地进行电压检测，并且保护模块。
电池夹具（W05-0909-00）
+ Terminal (Red)
＋极端子(红色)
– Terminal (Black)
－极端子(黑色)
在安装了电池夹具的无线电收发机和电源之间连接电源电
缆，并确认输出电压和两极接通后电源是否确实接通，否则过
高电压和电极连接颠倒都有可能损坏无线电收发机或电源或都
被损坏。
注: 当使用电池夹具时，你必须测试电池夹具的两个电极的电
压。否则当无线电收发机收发信时，在电源和电池夹具之间的
电缆线上会发生微小的电压降。
如何取下电缆
1． 按照箭头所示的方向， 用镊子均匀地将连接器推杆的两侧橇
开。
（CN303, CN304, CN305, CN306）
2． 使用常用的小型改锥， 按照箭头所示的方向小心地抬起连接
器的推杆。
（CN301, CN302, CN400）
Flat cable
扁平电缆
推杆