Icom IC-T70A Service Manual page 16

5-2 TRANSMIT 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
TX DRIVE AMP 1 • Frequency: Displayed
IDLING CURRENT • Transmitting
(at 13.5 V)
VHF (High power)
VHF (MIddle power) 2 • Transmitting
VHF (Low power) 3 • Transmitting
UHF (High power) 4 • Transmitting
UHF (Middle power) 5 • Transmitting
UHF (Low power) 6 • Transmitting
TX FINAL AMP 1 • Frequency: Displayed
IDLING CURRENT • Transmitting
(at 13.5 V)
VHF (High power)
VHF (MIddle power) 2 • Transmitting
VHF (Low power) 3 • Transmitting
UHF (High power) 4 • Transmitting
UHF (Middle power) 5 • Transmitting
UHF (Low power) 6 • Transmitting
¤ CONNECTION
RF POWER METER
(10 W/50 Ω)
All manuals and user guides at all-guides.com
CONDITION
1) Connect an RF power meter to the
antenna connector.
2) Connect a multimeter between
the external power supply and the
transceiver.
1) Connect an RF power meter to the
antenna connector.
2) Connect a multimeter between
the external power supply and the
transceiver.
• POWER SUPPLY
5 - 5
OPERATION
AMMETER
(10 mA to 3 A)
To [DC IN]
+
−
OPC-254L
Black
White
Fusese
(3A)
ADJUSTMENT
VALUE
ITEM
150–190 mA
180–220 mA
[USA]
130–170 mA
(All models
except [USA])
750–850 mA
450–550 mA
150–250 mA
750–850 mA
450–550 mA
150–250 mA
DC power supply
"13.5 V"
− ⊕