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4 - 6
TRANSMITTER ADJUSTMENTS (continued)
IDLING
CURRENT
(for drive
amplifiers)
(for final
amplifiers)
SWR
DETECTION
ADJUSTMENT
ADJUSTMENT
ADJUSTMENT CONDITION
MEASUREMENT
VALUE
POINT
UNIT
LOCATION
UNIT
ADJUST
1
2
3
4
5
1
2
3
• Display frequency: 14.10000 MHz
• Mode
: USB
• [Q2 MIC GAIN]
: 1 (minimum)
• turn R162, R174, R175, R214,
R231 (on the PA unit) to maximum
counterclockwise position.
• Disconnect the plug from J571 on
the PA unit.
• Transmitting
• Display frequency: 145.10000 MHz
• Mode
: USB
• [Q2 MIC GAIN]
: 1 (minimum)
• Transmitting
• Display frequency: 14.10000 MHz
• Mode
: USB
• [Q2 MIC GAIN]
: 1 (minimum)
• Transmitting
• Transmitting
• Display frequency: 145.10000 MHz
• Mode
: USB
• [Q2 MIC GAIN]
: 1 (minimum)
• Transmitting
• Display frequency: 14.10000 MHz
• Mode
: USB
• Ground CP1071 on the MAIN board.
• Connect an audio generator to
[MIC] connector and set as:
1.5 kHz/30 mV
• Transmitting
• Transmitting
PA
Rear
Panel
FILTER
Connect a DC
ammeter between
the DC power supply
and transceiver’s DC
power socket (P601
on the PA unit).
Connect an RF
power meter to
[ANT1] connector.
Connect a digital
multimeter to check
point W16.
0.5 A increase from that
R162 is in maximum
counterclockwise posi-
tion.
1.0 A increase from
step 1.
1.0 A increase from that
R174 is in maximum
counterclockwise posi-
tion.
1.0 A increase from
step 3.
2.0 A increase from
step 4.
100 W
Minimum voltage
PA
Quick
set
mode
FILTER
R162
R214
R174
R175
R231
Q2 MIC
GAIN
C58
After remove the jumper wire from CP1071 on the MAIN board.
Summary of Contents for IC-706MKIIG
Page 1: ...SERVICE MANUAL HF VHF UHF ALL MODE TRANSCEIVER i706MK G ...
Page 58: ... HPF BOARD BOTTOM VIEW DRIVER BOARD BOTTOM VIEW 8 6 ...
Page 60: ... PA UNIT BOTTOM VIEW 8 8 ...
Page 62: ...1 8 16 9 PLL UNIT BOTTOM VIEW 8 10 ...
Page 64: ... FILTER BOARD BOTTOM VIEW 8 12 ...
Page 85: ...6 9 16 Kamihigashi Hirano ku Osaka 547 0002 Japan A 5564HI S C 1999 by Icom Inc ...