Icom IC-F70DT, Service Manual

Page: 17 / 42

5 - 5
SOFTWARE ADJUSTMENT (Continued)
Select an operation using [
↑
] / [
↓
] keys, then set specifi ed value using [
←
] / [
→
] keys on the connected computer keyboard
ADJUSTMENT ADJUSTMENT CONDITION
MEASUREMENT
VALUE
UNIT OPERATION
OUTPUT
POWER
[Power (Hi)] 1 • Operating CH.
• Transmitting
: CH 3 Top
panel
Connect an RF power meter to
the antenna connector. 5.0 W
[Power (L2)] 2 • Operating CH.
• Transmitting
: CH 4 2.0 W
[Power (L1)] 3 • Operating CH.
• Transmitting
: CH 5 1.0 W
MODULATION
BALANCE
[BAL] 1 • Operating CH.
• Preset [MOD N]
: CH 5
: 100 Top
panel
Connect an FM deviation meter
with an oscilloscope to the
antenna connector through an
attenuator.
Set to square wave
form
• No audio applied to the JIG cable.
• Set an FM deviation meter as;
HPF
LPF
De-emphasis
Detector
: OFF
: 20 kHz
: OFF
: (P–P)/2
• Push [P0] while transmitting.
FM
DEVIATION
(NARROW)
[MOD N C] 1 • Operating CH.
: CH 13
Top
panel
Connect an FM deviation meter to
the antenna connector through
an attenuator. ±2.00 to ±2.10 kHz
• Connect an audio generator to the JIG
cable and set as;
: 1.0 kHz/150 mV rms
• Set an FM deviation meter as;
HPF
LPF
De- emphasis
Detector
• Transmitting
: OFF
: 20 kHz
: OFF
: (P–P)/2
(NARROW)
[MOD N L] 2 • Operating CH.
• Transmitting
: CH 8
(NARROW)
[MOD N H] 3 • Operating CH.
• Transmitting
: CH 2
(WIDE)
[MOD W C] 4 • Operating CH.
• Transmitting
: CH 5
±3.95 to ±4.05 kHz
(WIDE)
[MOD W L] 5 • Operating CH.
• Transmitting
: CH 6
(WIDE)
[MOD W H] 6 • Operating CH.
• Transmitting
: CH 7