Alinco DR-138 - Manual (Page 11)

3
2
Red
Black
Ext. Power jack
DC power cable
Initial Installation
DC Power Cable Connection
Mobile Operation
The vehicle battery must have a nominal rating of 12V. Never
connect the transceiver to a 24V battery. Be sure to use a 12V
vehicle battery that has sufficient current capacity. If the current
to the transceiver is insufficient, the display may darken during
transmission, or transmitting output power may drop excessively.
When the ignition key is turned to ACC or ON position with the 8.
radio's power switch on, the unit turns on automatically and the
power switch will be lit. Turn the ignition key to OFF position or
manually turn the power switch off to shut down the radio.
Use of ignition-key ON/OFF feature drains 5mAh of current from
9.
the battery as long as the EDC-43 is being connected.
Route the DC power cable supplied with the transceiver directly 1.
to the vehicle's battery terminals using the shortest path from the
transceiver.
Never use the cigarette lighter socket as a DC source.
The entire length of the cable must be dressed so it is isolated from
heat, moisture, and the engine secondary (high voltage) ignition
system/ cables.
After installing cable, in order to avoid the risk of damp, please 2.
use heat-resistant tap to tie together with fuse box. Don't forget to
reinforce whole cable.
In order to avoid the risk of short circuit, please cut down
3.
connection with negative (-) of battery, then connect with radio.
Confirm the correct polarity of the connections, then attach the
4.
power cable to the battery terminals; red connects to the positive (+)
terminal and black connects to the negative (-) terminal.
Never remove the fuse holders from the cable.
Reconnect any wiring removed from the negative terminal. 5.
When the ignition key is turned to ACC or ON(Start) position with 7.
the radio turned off, the power switch illuminates. The illumination
will be turned off when the ignition key is turned to the off position.
To turn on the unit, press the power switch manually while it is
illuminated. (While ignition key is at ACC or ON position)
Connect the DC power cable to the transceiver's power supply 6.
connector.
Press the connectors firmly together until the locking tab clicks.
If the ignition-key on/off feature is desired(optional feature), use the
optional EDC-43(For Cigar-Plug connection) cable. Connect one of the
cables between the ACC terminal or a Cigar-Plug that operates with
the vehicle ignition or ACC switch on the vehicle and EXT POWER
jack on the rear side of the unit.