Kenwood TH-K4AT Service Manual page 39

Item Condition
2.TX power Connect the optional PG-2W
Write (DC IN DC cable to the power supply.
terminal: 13.8V) DC IN terminal voltage: 13.8V
Switch to Adjustment mode
and carry out the operations
for adjustment item I.
(Refer to page 31)
1)LCD display: P13L,
Frequency: 430.000MHz
PTT: ON
2)LCD display: P13C,
High power Frequency: 435.000MHz
PTT: ON
3)LCD display: P13H,
Frequency: 439.995MHz
PTT: ON
Switch to Adjustment mode
and carry out the operations
for adjustment item J.
(Refer to page 32)
4)LCD display: P13L,
Frequency: 430.000MHz
PTT: ON
5)LCD display: P13C,
Mid power Frequency: 435.000MHz
PTT: ON
6)LCD display: P13H,
Frequency: 439.995MHz
PTT: ON
Switch to Adjustment mode
and carry out the operations
for adjustment item K.
(Refer to page 32)
7)LCD display: P13L,
Low power Frequency: 430.000MHz
PTT: ON
8) LCD display: P13C,
Frequency: 435.000MHz
PTT: ON
9) LCD display: P13H,
Frequency: 439.995MHz
PTT: ON
3.Battery Switch to Adjustment mode
terminal and carry out the operations
reference for adjustment item B.
voltage (Refer to page 28)
Adjust/ TX power: Low
Check 1)LCD display: BAT
Frequency: 435.000MHz
PTT: ON
Battery terminal voltage: 7.5V
(Adjust the output voltage from DC power supply until the voltage at the
battery terminal becomes 7.5V while the transceiver is transmitting.)
ADJUSTMENT
Measurement
Test equipment Unit Terminal
DC power supply TX-RX DC IN
DVM (A/3)
Power meter ANT
Am meter
DC power supply
DVM
TH-K4AT/K4E
Adjustment
Unit Parts Method
Encoder Write
[MENU]
Encoder Write
[MENU]
Encoder Write
[MENU]
Encoder Write
[MENU]
Encoder Write
[MENU]
Encoder Write
[MENU]
Encoder Write
[MENU]
Encoder Write
[MENU]
Encoder Write
[MENU]
[MENU] Write
LCD Check
Specifications/
Remarks
5.0W - 5.1W
2.0A or less
1.5W ±0.05W
1.4A or less
0.5W ±0.05W
0.8A or less
All segments
are lighted.
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