![background image](http://html1.mh-extra.com/html/icom/ic-f1721d/ic-f1721d_service-manual_4203161018.webp)
0 - 0
5-2 SOFT WARE ADJUSTMENT
Select an operation using [
↑
] / [
↓
] keys, then set specifi ed value using [
←
] / [
→
] keys on the connected
computer keyboard
ADJUSTMENT
ADJUSTMENT CONDITION
MEASUREMENT
VALUE
UNIT
LOCATION
UNIT
ADJUST
LCD
CONTRAST
1 • Operating freq.
• Receiving
: 155.000 MHz
FRON Connecta digital
multimeter or an oscillo-
scope to the check point
"CONTRAST".
–2.0 V
FRONT
R59
CONVENIENT:
The PLL lock voltage can be adjustment automatically.
Set the cursor to "RX LVA"/"TX LVA" and then push [ENTER] key.
CONTRAST CHCK POINT
R53: CONTRAST ADJUSTMENT
• FRONT PANEL-A
• FRONT PANEL-B