Kenwood TH-K4AT Service Manual page 38

TH-K4AT/K4E
Transmitter section
Item Condition
1.TX power Battery terminal voltage:
Write (Battery 7.5V
Note: Adjust the output voltage from DC power supply until the voltage at the battery terminal
terminal: 7.5V)
becomes 7.5V while the transceiver is transmitting.
Switch to Adjustment mode
and carry out the operations
for adjustment item F.
(Refer to page 29)
1)LCD display: P7L,
Frequency: 430.000MHz
PTT: ON
2)LCD display: P7C,
High power Frequency: 435.000MHz
PTT: ON
3) LCD display: P7H,
Frequency: 439.995MHz
PTT: ON
Switch to Adjustment mode
and carry out the operations
for adjustment item G.
(Refer to page 30)
4)LCD display: P7L,
Frequency: 430.000MHz
PTT: ON
Mid power 5)LCD display: P7C,
Frequency: 435.000MHz
PTT: ON
6)LCD display: P7H,
Frequency: 439.995MHz
PTT: ON
Switch to Adjustment mode
and carryout the operations
for adjustment item H.
(Refer to page 30)
7)LCD display: P7L,
Frequency: 430.000MHz
PTT: ON
8)LCD display: P7C,
Low power Frequency: 435.000MHz
PTT: ON
9)LCD display: P7H,
Frequency: 439.995MHz
PTT: ON
38
ADJUSTMENT
Measurement
Test equipment Unit Terminal
DC power supply TX-RX B
DVM (A/3) GND
Power meter ANT
Am meter
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]
Specifications/
Remarks
Note: Do not
use the DC IN
terminal.
4.8W ±0.05W
2.1A or less
1.5W ±0.05W
1.4A or less
0.5W ±0.05W
0.8A or less