2,5KHz 30mV
ALIGNMENT VCO/PLL
1 - Alignment procedure(13,2V;configuration” EU,E,EC,PL,U,d”)
STEP
CONDITION
ADJUSTMENT
REMARKS OF ADJUSTMENT
1
AM/FM(EU,E)
RX mode
Channel 40
L402
2
AM/FM(EU,E)
RX mode
Channel 1
3
AM/FM(EU,E)
RX mode
Channel 20
L401
Fine coarse vertical position
Connect a frequency counter to TP5,
adjust L401 to reach 37,900MHz ± 20Hz
4
LSB(EU,E)
TX mode
Channel 20
Without modulation
L405
Fine coarse vertical position
Connect a frequency counter to TP5,
adjust L405 to reach 37,8975MHz ± 20Hz
5
USB(EU,E)
RX mode
Channel 20
L271
Fine coarse vertical position
Connect a frequency counter to TP3,
adjust L271 to reach 10,6975MHz ± 20Hz
6
LSB(EU,E)
RX mode
Channel 20
L275
Fine coarse vertical position
Connect a frequency counter to TP3,
adjust L275 to reach 10,6925MHz ± 20Hz
7
AM/FM(EU,E)
TX mode
Channel 20
Without modulation
L273
Fine coarse vertical position.Connect a
frequency counter to the dummy load,
adjust L273 to reach 27,205MHz ± 20Hz
8
AM/FM
RX mode
(EU,E,EC,PL,U,d)
Fine coarse vertical position
Connect a voltmeter to TP 1,
adjust L402 to reach 2V±0,2V.