Icom IC-T70A Service Manual page 20

5-4 MODURATION ADJUSTMENTS (Continued)
1) Select an adjustment item using [VOL].
2) Set or modify the adjustment value as specifi ed using [DIAL], then push [BAND] to store the adjustment value.
TRANSCEIVER'S
ADJUSTMENT
FM (Narrow) 1 • Frequency: Displayed
DEVIATION • Transmitting
VHF (Low band)
VHF (High band) 2 • Frequency: Displayed
• Transmitting
UHF ( Low band) 3 • Frequency: Displayed
• Transmitting
UHF (High band) 4 • Frequency: Displayed
• Transmitting
VHF (Low band) 5 • Frequency: Displayed
• Transmitting
VHF (High band) 6 • Frequency: Displayed
• Transmitting
UHF ( Low band) 7 • Frequency: Displayed
• Transmitting
UHF (High band) 8 • Frequency: Displayed
• Transmitting
¤ CONNECTION
SETTING
HPF
LPF
• POWER SUPPLY
AMMETER
+ −
+ –
DC power supply
6–10 V/3 A
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CONDITION
1) Connect a modulation analyzer to
the antenna connector through an
attenuator, and set it as;
HPF
LPF
2) Connect an audio generator to the JIG
cable #2 and set it as;
Frequency : 1 kHz
Level
• Set the audio generator as;
Level
MODULATION ANALYZER
(30 – 600 MHz)
: OFF
: 20 kHz
VOLTAGE METER
"7.2 V"
+
−
+
–
OPERATION
: OFF
: 20 kHz
: 150 mVrms
: OFF
ATTENUATOR
(30 dB/10 W)
5 - 9
ADJUST-
MENT VALUE
ITEM
±2.0 to ±2.2
kHz
Minimum level
JIG CABLE #2
(See the page 5 -1.)
To [MIC]