Icom UHF IC-FR6000, Service Manual Addendum

Page: 285 / 341

Dec. 2008
6-2 FREQUENCY ADJUSTMENT
1) Select an adjustment item using cursor or [
↑
] / [
↓
] keys of the PC’s keyboard.
2) Set or modify the adjustment value as specifi ed using [
←
] / [
→
] keys of the PC’s keyboard, then push the [ENTER] key.
ADJUSTMENT ADJUSTMENT CONDITION OPERATION
ADJUSTMENT
ITEM
VALUE
PLL LOCK
VOLTAGE
-Preparation- 1
–
1) Connect an RF power meter to the
TX antenna.
2) Set the preset adjustment value on
the adjustment utility window.
[LV (RX L)]
[LV (RX H)]
[LV (TX L)]
[LV (TX H)]
36 [0.70V]
(for each
item)
-Adjust-
RX
(Band low) 2 • CH. : 1-1
• Receiving
• Select the item [RX LVA L] , then
push the [ENTER] key. [RX LVA L]
(Automatic
adjustment)
RX
(Band high) 3 • CH. : 1-2
• Receiving
• Select the item [RX LVA H] , then
push the [ENTER] key.
[RX LVA H]
TX
(Band low) 4 • CH. : 1-1
• Transmitting
• Select the item [TX LVA L] , then push
the [ENTER] key.
[TX LVA L]
TX
(Band high) 5 • CH. : 1-2
• Transmitting
• Select the item [TX LVA H] , then
push the [ENTER] key.
[TX LVA H]
LOCK
VOLTAGE
VERIFY
RX
(Band low)
1 • CH. : 1-3
• Receiving
• Ve r i f y t h e l o ck vo l t a g e a t e a c h
channels on the [RX LIVIN] item on
the " I/O Check window " as below.
[RX LIVIN]
(I/O Check
window)
3.0–4.3 V
(Verify)
RX
(Band high) 2 • CH. : 1-4
• Receiving
3.0–4.0 V
(Verify)
TX
(Band low) 3 • CH. : 1-3
• Transmitting
• Ve r i f y t h e l o ck vo l t a g e a t e a c h
channels on the [TX LIVIN] item on
the " I/O Check window " as below.
[TX LIVIN]
(I/O Check
window)
2.7–4.2 V
(Verify)
TX
(Band high) 4 • CH. : 1-4
• Transmitting
TX
FREQUENCY 1
–
1) Set the item [TX Mode] to "1."
2) Connect an RF power meter to the
TX antenna.
[TX Mode] "1"
2 • CH. : 1-5
• Transmitting
1) Adjust the frequency using [
←
] / [
→
]
keys of the PC’s keyboard.
2) Push the [ENTER] key to store the
adjust value.
[TX REF]
469.9000 MHz
[Low band]
519.9000 MHz
[High band]
• I/O CHECK WINDOW
Lock voltage verify
6 - 6
(Replacement page)