Icom IC-V85 Service Manual page 13

¤ ADJUSTMENT
ADJUSTMENT ADJUSTMENT CONDITION
REFERENCE 1 • Connect a RF Power Meter or a dummy
FREQUENCY load to the antenna connector.
[Fr] • Loosely couple a Frequency Counter to
the antenna connector.
• Transmitting
LOCK 1 • Connect an RF Power Meter to the
VOLTAGE antenna connector.
[LU] • Transmitting
TRANSMIT 1 • Connect an RF Power Meter to the
OUTPUT antenna connector.
POWER • Transmitting
[Po]
(H; High)
(M; Middle) 2 • Transmitting
(L; Low) 3 • Transmitting
DEVIATION NOTE: "REFERENCE FREQUENCY" should be adjusted before "DEVIATION."
[dE] Otherwise, "DEVIATION" will not be adjusted properly.
1 • Connect an Audio Generator and AC
millivoltmeter to the MIC line (see page
5-1) and set as;
Frequency
Level
• Connect a Modulation Analyzer to
the antenna connector through an
attenuator, and set as;
HPF
LPF
De-emphasis : OFF
• Detector
Transmitting
[dP]* Push [Y] to skip this item.
DTCS NOTE: ""DEVIATION" should be adjusted before "DTCS MODULATION BALANCE."
MODULATION Otherwise, "DTCS MODULATION BALANCE" will not be adjusted properly.
BALANCE
1 • Set the Modulation Analyzer same as
[dt]
"DEVIATION."
• Connect an Oscilloscope to the detector
output ter minal of the Modulation
Analyzer.
• No audio signal is applied to the MIC line.
• Transmitting
[bP]* Push [Y] to skip this item.
RECEIVE NOTE: "REFERENCE FREQUENCY" should be adjusted before "RECEIVE SENSITIVITY."
SENSITIVITY Otherwise, "RECEIVE SENSITIVITY" will not be adjusted properly.
[tr]
1 • Connect an SSG to the antenna connector
(Band low)
and set as;
Frequency : Displayed frequency
Level
Modulation : 1 kHz
Deviation
• Receiving
(Band center) 2 • Set the SSG as;
Frequency : Displayed frequency
• Receiving
(Band high) 3 • Set the SSG as;
Frequency : Displayed frequency
• Receiving
Connect an 8 Ω spaeker to the AFOUT
SQUELCH 1 •
[Sq] line (see page 5-1).
• Set the SSG as;
Level
• Receiving
*; These items MUST NOT be modifi ed. Otherwise, the transceiver will not perform properly.
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Rotate [CONTROL DIAL] during transmit to
adjust the frequency, then release the [PTT] and
push [CLR] key to store the adjustment value
and select the next adjustment item.
Push [CLR] key during transmit, then push [Y]
to select the next adjustment item.
Rotate [CONTROL DIAL] during transmit
to adjust the output power, then release the
[PTT] and push [CLR] key during transmit to
store the adjustment value and select the next
adjustment item.
Rotate [CONTROL DIAL] during transmit to
adjust the deviation, then release the [PTT] and
push [CLR] key to store the adjustment value
: 1 kHz and select the next adjustment item.
: 90 mVrms
: OFF
: 20 kHz
: (P–P)/2
Rotate [CONTROL DIAL] during transmit
to arrange the wave form, then release the
[PTT] and push [CLR] key during transmit to
store the adjustment value and select the next
adjustment item.
Push [CLR] key to store the adjustment value
and select the next adjustment item.
: 0 dBµ (−107 dBm)
: ±3.5 kHz
Push [CLR] key to store the adjustment value
and select the next adjustment item.
Push [CLR] key to store the adjustment value
and select the next adjustment item.
Rotate [CONTROL DIAL] to
once,
the squelch level at the point where the audio
: −19 dBµ (−126 dBm) signals just appear.
Push [CLR] key to store the adjustment value
and select the next adjustment item.
5 - 3
OPERATION
close the squelch
then rotate [CONTROL DIAL] to
VALUE
146.00000 MHz
(automatic
adjustment)
7.0 W
except [THA]
5.5 W
[THA]
4.0 W
0.5 W
±4.2 kHz
–
Set to square
wave form
–
(automatic
adjustment)
Squelch open
set