Vertex Standard TRANSCEIVER VX-1700 - Manual (Page 14)

14
Alignment
PA Unit Alignment
P
RE
-D
RIVER
S
ECTION
I
DLING
C
URRENT
A
LIGNMENT
Connect the 50 Ohm Dummy Load to the ANT
jack.
Remove the shorting-plug from J2003 on the PA
Unit, then connect the DC Ammeter to J2003 (pin
1: “–” lead, pin 2: “+” lead).
Set VR2001 on the PA Unit fully counter-clock-
wise.
Tune the radio to 7.500 MHz, USB mode.
Key the transmitter (connect pin 3 of the MIC
jack to GND) with no microphone input, and
adjust VR2001 for 300 mA (± 30 mA) on the DC
Ammeter.
Disconnect the DC Ammeter, and replace the
shorting-plug into J2003.
D
RIVER
S
ECTION
I
DLING
C
URRENT
A
LIGNMENT
Connect the 50 Ohm Dummy Load to the ANT
jack.
Remove the shorting-plug from J2004 on the PA
Unit, then connect the DC Ammeter to J2004 (pin
1: “–” lead, pin 2: “+” lead).
Set VR2002 on the PA Unit fully counter-clock-
wise.
Tune the radio to 7.500 MHz, USB mode.
Key the transmitter (connect pin 3 of the MIC
jack to GND) with no microphone input, and
adjust VR2002 for 300 mA (± 30 mA) on the DC
Ammeter.
Disconnect the DC Ammeter, and replace the
shorting-plug into J2004.
PA U
NIT
A
LIGNMENT
P
OINTS
J 2004
TP 2020
TP 2021
VR 2003
VR 2002
VR 2001
J 2003
TC 2001
TP 2018
MIC J
ACK
P
INOUT