Frequency Adjustment - Icom IC-M85 Service Manual

4-2 FREqUENCY ADJUSTMENT

1. Select an adjustment item by pushing [↑]/[↓]/[←]/[→] on the PC's keyboard.
2. Set or modify the adjustment value as specified using [Space]/[BackSpace] on the PC's keyboard.
ADJUSTMENT
PLL LOCK 1 •
VOLTAGE •
2 •
•
3 •
•
4 •
•
REFERENCE
1 •
FREqUENCY •
TRANSCEIVER'S
CONDITION
Channel: 1
Receiving
Channel: 2
Transmitting
Channel: 3
Receiving
Channel: 4
Transmitting
Channel: 5
Transmitting
• I/O Check window
(The values shown above are example
only. Each transceiver has own values.)
OPERATION
Click the "I/O check button" on the
ADJ-M85's screen (see page 4-2) to
open the I/O check window as below.
Loosely couple the frequency
counter to the antenna connector, as
shown on page 4-1.
Lock voltage is
* * * *
displayed here.
4-4
ADJUSTMENT
VALUE
ITEM
[RX LVA] 3.2 V: 163
[TX LVA] 3.4 V: 174
[LVIN] 0.8 V ±0.3 V
(On the I/O (Verify)
Check window)
0.9 V ±0.3 V
(Verify)
[REF]
155.0000 MHz
(±300 Hz)