PRESIDENT TOMMY, Service Manual

Page: 5 / 48

ALIGNMENT VCO/PLL
1 - Alignment procedure(13,2V;configuration”EU,E”)
STEP CONDITION ADJUSTMENT REMARKS OF ADJUSTMENT
1 AM(EU,E)
RX mode
Channel 20
CT301
Connect a frequency counter to
TP200,and adjust CT301 to reach
37,900MHz.
2 AM(EU,E)
TX/RX mode
Channel 40
Connect a voltmeter to TP 103,and check:
2,2V±0,1V
≤ Tx Channel 40 ≤ 3,2V±0,1V
2,5V±0,1V ≤ Rx Channel 40 ≤ 3,5V±0,1V
3 AM(EU,E)
TX/RX mode
Channel 1
Connect a voltmeter to TP 103,and check:
Tx Channel 1=Tx Channel 40-0,3V±0,1V
Rx Channel 1=Rx Channel 40-0,3V±0,1V
4 AM(EU,E)
TX/RX mode
Channel 1 to 40
Connect a frequency counter to
TP200,and check frequencies.