Icom IC-F2000 Service Manual page 17

4-2 FREQUENCY ADJUSTMENTS (CONTINUED)
1) Select an adjustment item using [↑]/[↓]/[←]/[→] on the PC's keyboard.
2) Set or modify the adjustment value as specified using [Space]/[Back Space] on the PC's keyboard.
TRANSCEIVER'S
ADJUSTMENT
PLL LOCK 13 • CH No.: 1
VOLTAGE • Receiving
- Verification -
(RX Band low)
(RX Band high) 14 • CH No.: 3
• Receiving
(TX Band low) 15 • CH No.: 1
• Transmitting
(TX Band high) 16 • CH No.: 3
• Transmitting
REFERENCE 1 • CH No.: 3
FREQUENCY • Transmitting
- Adjustment -
(Band high)
- Verification - 2 • CH No.: 1
(Band low) • Transmitting
(Band center) 3 • CH No.: 2
• Transmitting
CONDITION
• Click
Check" window as shown below.
• Click [Update (F5)] to re-load the
latest value for each item.
• Loosely couple the frequency
counter to the antenna connector.
• I/O Check window
(The values shown above are only examples.
Each transceiver has own values.)
OPERATION
button to display the "I/O
Lock voltage
* * *
4-7
ADJUSTMENT
ITEM
[LVIN] For 400~470 MHz
(On the "I/O versions:
Check" window)
For 450~512/520 MHz
versions:
For 400~470 MHz
versions: 2.55~2.95 V
For 450~512/520 MHz
versions:
For 400~470 MHz
versions:
For 450~512/520 MHz
versions:
3.6~4.0 V
[REF Data] For 400~470 MHz
versions:
470.000000 MHz
(±500 Hz)
For 450~512/520 MHz
versions:
520.000000 MHz
(±500 Hz)
– For 400~470 MHz
versions:
400.000000 MHz
(±500 Hz)
For 450~512/520 MHz
versions:
450.000000 MHz
(±500 Hz)
For 400~470 MHz
versions:
435.000000 MHz
(±500 Hz)
For 450~512/520 MHz
versions:
485.000000 MHz
(±500 Hz)
VALUE
0.9~1.1 V
0.8~1.2 V
Less than 4.0 V
0.9~1.1 V
0.8~1.2 V