Kenwood TH-F6A Service Manual page 38

TH-F6A/F7E
Power supply
Band Power Frequency adjustment point
voltage
13.8[v] 220MHz H
L
EL
400MHz H
L
EL
• If no adjustment is necessary for an item (for example, 50
MHz f2), the following message appears. Operations 5) and
6) are invalid.
∗ ∗ f2 : ∗ ∗
P :
3
50.000
I. DCS balance adjustment
1) Display the "BAL" item.
2) Set the A band to the operation band.
3) Select points f1 to f3 as shown in the "Frequency
Adjustment Points" table below.
4) Set the display frequency to the frequency appropriate
to the frequency adjustment point.
5) Press [PTT] and turn the encoder during transmission
to change the "real-time value".
6) Press [MNU] key to set the "real-time value" in the
EEPROM.
7) Adjust all frequency adjustment points.
3
144.000
BAL : 83 f1 : FF
Real-time value
Frequency adjustment point
• Frequency adjustment points
Band Frequency adjustment point
144MHz 3 points (f1, f2, f3)
220MHz 3 points (f1, f2, f3)
400MHz 3 points (f1, f2, f3)
• When transmission is performed in DCS balance adjustment
mode, a 100Hz square waveform is modulated.
• If no adjustment is necessary for an item (for example, 50
MHz f2), the following message appears. Operations 5) and
6) are invalid.
: ∗ ∗ f2 : ∗ ∗
BAL
3
50.000
J. Max deviation adjustment
1) Display the "MAX" item.
2) Set the A band to the operation band.
3) Select points f1 to f3 as shown in the "Frequency
Adjustment Points" table below.
4) Set the display frequency to the frequency appropriate
to the frequency adjustment point.
5) Press [PTT] and turn the encoder during transmission
to change the "real-time value".
38
ADJUSTMENT
3 points (f1, f2, f3) K destination only
3 points (f1, f2, f3) K destination only
3 points (f1, f2, f3) K destination only
3 points (f1, f2, f3)
3 points (f1, f2, f3)
3 points (f1, f2, f3)
EEPROM setting
K destination only
6) Press [MNU] key to set the "real-time value" in the
EEPROM.
7) Adjust all frequency adjustment points.
3
144.000
MAX : 83 f1 : FF
Real-time value EEPROM setting
Frequency adjustment point
• Frequency adjustment points
Band Frequency adjustment point
144MHz 3 points (f1, f2, f3)
220MHz 3 points (f1, f2, f3)
400MHz 3 points (f1, f2, f3)
• If no adjustment is necessary for an item (for example, 50
MHz f2), the following message appears. Operations 5) and
6) are invalid.
MAX : ∗ ∗ f2 : ∗ ∗
3
50.000
K. Tone deviation adjustment
1) Display the "TON" item.
2) Set the A band as the operation band.
3) Select points f1 to f3 as shown in the "Frequency
Adjustment Points" table below.
4) Set the display frequency to the frequency appropriate
to the frequency adjustment point.
5) Press [PTT] and turn the encoder during transmission
to change the "real-time value".
6) Press [MNU] key to set the "real-time value" in the
EEPROM.
7) Adjust all frequency adjustment points.
•
144.000
TON : 83 f1 : FF
Real-time value EEPROM setting
Frequency adjustment point
• Frequency adjustment points
Band Frequency adjustment point
144MHz 3 points (f1, f2, f3)
220MHz 3 points (f1, f2, f3)
400MHz 3 points (f1, f2, f3)
• The tone frequency of each band must be set to a specified
value before entering the service adjustment mode.
• To adjust, switch the tone ON (ensure to switch it OFF after
adjustment).
• If no adjustment is necessary for an item (for example, 50
MHz f2), the following message appears. Operations 5) and
6) are invalid.
TON : ∗ ∗ f2 : ∗ ∗
3
50.000
K destination only
K destination only