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5 - 4
L11
L405
PLL lock voltage
adjustment
LV
PLL lock voltage
check point
MAIN UNIT
Bottom view
RF power meter
5-2 PLL ADJUSTMENT
PLL LOCK
VOLTAGE
1
2
3
4
• Operating frequency:
400.000 MHz
A
440.000 MHz
B
470.000 NHz
C
490.000 MHz
D
,
E
• Receiving
• Transmitting
• Operating frequency:
430.000 MHz
A
470.000 MHz
B
500.000 MHz
C
512.000 MHz
D
520.000 MHz
E
• Receiving
• Transmitting
MAIN Connect a digital multi
meter to check point
LV.
1.3 V
1.3 V
B
1.05 V (except
B
)
3.0–4.5 V
(
A
,
B
,
C
)
2.0–3.7 V
D
2.5–4.2 V
E
3.0–4.5 V
A
,
C
2.7–4.2 V
B
2.0–3.7 V
D
2.5–4.2 V
E
MAIN
L11
L405
Verify
ADJUSTMENT
ADJUSTMENT CONDITIONS
UNIT
LOCATION
VALUE
UNIT
ADJUST
MEASUREMENT
ADJUSTMENT
A
: 400–430 MHz
B
: 440–470 MHz
C
: 470–500 MHz
D
: 490–512 MHz
E
: 490–520 MHz
ˆ
: N-type
„
: W-type
˜
: M-type
Summary of Contents for IC-F3GS
Page 1: ...SERVICE MANUAL VHF FM TRANSCEIVERS ...
Page 39: ......
Page 40: ...1 1 32 Kamiminami Hirano ku Osaka 547 0003 Japan S 13713IZ C1V q 2000 Icom Inc ...
Page 41: ...SERVICE MANUAL UHF FM TRANSCEIVERS ...
Page 82: ......
Page 83: ...1 1 32 Kamiminami Hirano ku Osaka 547 0003 Japan S 13713IZ C1U 1 2000 Icom Inc ...