Icom IC-FR6000 Service Manual Addendum page 8

August 2016
6-5 FREQUENCY ADJUSTMENT
(For [#63], [#64], [#65], [#66], [#67], [#68], [#69], [#75], [#76], and [#77])
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, and then push the [ENTER] key.
ADJUSTMENT
ADJUSTMENT
CONDITION
PLL LOCK 1
VOLTAGE
-Preparation-
2 • Channel:
-Adjust-
• Receiving
RX
(Band low)
3 • Channel:
RX
• Receiving
(Band high)
4 • Channel:
TX
• Transmitting
(Band low)
5 • Channel:
TX
• Transmitting
(Band high)
1 • Channel:
LOCK
• Receiving
VOLTAGE
VERIFY
RX (Band low)
RX (Band high) 2 • Channel:
• Receiving
TX (Band low) 3 • Channel:
• Transmitting
TX (Band high) 4 • Channel:
• Transmitting
1 • Channel:
RX
• Receiving
FREQUENCY
1
TX
FREQUENCY
2 • Channel:
• Transmitting
[L]= Low band, [H]=High band, [350 MHz]=350 MHz band.
• I/O CHECK WINDOW
(Amended page)
OPERATION
1) Connect the RF power meter to the TX an-
tenna connector.
–
2) Set the preset adjustment value on the ad-
justment utility window.
1-1 Select the item [RX LVA L], and then push
the [ENTER] key.
1-2 Select the item [RX LVA H], and then push
the [ENTER] key.
1-1 Select the item [TX LVA L], and then push
the [ENTER] key.
1-2 Select the item [TX LVA H], and then push
the [ENTER] key.
1-3 Verify the lock voltage at each channel on
the [RX LIVIN] item on the "I/O Check win-
dow" as shown below.
1-4
1-3 Verify the lock voltage at each channel on
the [TX LIVIN] item on the "I/O Check win-
dow" as shown below.
1-4
1-8 Connect the frequency counter to the 1st LO
check point on the MAIN-C/-D/-E UNIT as
shown below.
NOTE:
Make sure that the 1st LO frequencies on the
RX LO terminals are the values shown to the
right when the repeater frequency is set to
near the upper band edge.
If the measured frequency is not the speci-
fi ed value re-adjust the RX frequency.
1) Set the item [TX Mode] to "1."
– 2) Connect the RF power meter to the TX
antenna connector.
1-5 1) Adjust the frequency using [←] / [→] keys
of the PC's keyboard.
2) Push [ENTER] to store the value.
Lock voltage verify
ADJUSTMENT
• 1ST LO CHECK POINT
(MAIN-C/-D/-E UNIT)
6-10
VALUE
ITEM
[LV (RX L)]
36 [0.70V]
[LV (RX H)]
(for each item)
[LV (TX L)]
[LV (TX H)]
[RX LVA L]
[RX LVA H]
(Automatic
adjustment)
[TX LVA L]
[TX LVA H]
2.0–4.3 V (Verify)
[RX LIVIN]
[L], [H]
(I/O Check win-
2.7–4.3 V (Verify)
dow)
[350 MHz]
3.2–4.3 V (Verify)
[L]
[TX LIVIN]
2.0–4.3 V (Verify)
(I/O Check win-
[H]
dow)
3.0–4.3 V (Verify)
[350 MHz]
423.5500 MHz
[L]
473.5500 MHz
[H]
[RX REF]
353.5500 MHz
[350 MHz]
( ±50 Hz)
(1st Lo frequency)
"1"
[TX Mode]
469.9000 MHz [L]
519.9000 MHz [H]
[TX REF]
399.9000 MHz [350 MHz]
( ±50 Hz)
(MAIN/-A/-B UNIT)
GND
RXLO
CPU FLASH
DSUB
5
RXLO
GND RXLO