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TH-K2AT/K2E/K2ET
35
ADJUSTMENT
1.Setting and
Connect the optional PG-2W
LCD total illumination display Initial configuration displayed after
resetting
DC cable to the power supply.
the full-reset.
DC IN terminal voltage: 13.8V
1) Total illumination display
confirmation
Turn the Transceiver Power ON by pressing the power switch while the [F] key is pressed.
While the [F] key is pressed, all LCD segments light.
2) Full-resetting
After confirming that all LCD segments have lighted described in the Step 1 above, release
the [F] key, and then press the [F] key twice while “FL.RST?” appears on the display.
2
VCO
After removing 3 screws fixing
Lock voltage
the TX-RX unit (B/3), remove
Check
the TX-RX (B/3) unit from the
CN9 connector of the TX-RX
unit (A/3).
1) Frequency: 136.000MHz DVM TX-RX LV Check 0.7V or more
RX 2) Frequency: 173.990MHz (A/3) 4.3V or less
TX TX power: Low
1) Frequency: 136.000MHz 0.7V or more
PTT: ON
2) Frequency: 173.990MHz 4.3V or less
PTT: ON
After observing the VCO
lock voltage, connect the
TX-RX unit (B/3) to the
original position.
3.
TX frequency
1) TX power: Low f. counter ANT TX-RX VR1 145.990MHz ±150Hz
Adjust
Frequency: 145.990MHz (A/3)
PTT: ON
4.
Overvoltage
Switch to Adjustment mode
warning
and carry out the operations
reference
for adjustment item A.
voltage
(Refer to page 28)
Adjust/Check
1) LCD display: DC DC power supply [MENU] Write
Frequency: 145.050MHz
(E, E3)
Frequency: 146.050MHz
(K, K2, M, M2)
DC IN terminal voltage: 14.8V
To exit from the Adjustment
Mode, turn the transceiver
power OFF and then ON.
2) Frequency: 145.050MHz Check
Alarm sound and
(E, E3)
display “DC ERR”
Frequency: 146.050MHz
message.
(K, K2, M, M2)
DC IN terminal voltage: 17.5V
Common Section
Item Condition
Measurement Adjustment
Specifications/
Test equipment Unit
Terminal
Unit
Parts Method
Remarks