LABORATORY TESTING PROCEDURES
LXT560
Page 1
UNIT TEST - (UNIT ASSEMBLED)
TEST PREPARATION
1) Install 4 AAA Alkaline batteries (observe polarity markings).
2) Turn on unit by pressing the power button.
SYSTEM TEST
1) Radiated Transmit and Receive performance may be observed.
2) Audio out & Audio in are available at the Headset jack.
LABORATORY TEST - (UNIT UN-ASSEMBLED)
TEST PREPARATION
1) Disassemble unit (4 screws – 2 behind batteries). Remove the PCB from the cabinet.
2) Remove the antenna with soldering iron and install a 50 ohm coax cable in its place.
3) Either clip alligator leads or solder test leads to the power supply connections. The
negative terminal is the lower right PCB area. The positive terminal is the lower left
PCB area.
4) Connect 6VDC power source to the terminals, observing correct polarity.
5) Connect an 12-ohm load through the Headset jack
6) Connect a audio generator with 10uF coupling capacitor through the Headset jack
7) Select desired channel 1-36 using CH up/down keypad switch. The rubber keypad
may be removed from the front cabinet and used directly on the PCB.
