Specifications

23
15 APPENDIX 1: SCHEMATIC DIAGRAMS
15.1 DX-3 Block Diagram
POWER SUPPLY
MODULE
(See Schematic)
DISPLAY
MODULE
& METERS
(See Schematic)
RF / TUBE
MODULE
(See Schematic)
CONTROL
BOARD
MODULE
(See Schematic)
RF
SENSOR
+5V FAULT ON AIR
O’DRIVE
Vp
Ip
Ip
Protec
READY
SW
Ig2
Pf Pr
SWR
Protect
RF OUT
(ANTENNA)
ANTENNA
RELAY
(QSK)
(See
schematic
)
Relay 1,2
RF IN
(TRANSCEIVER)
TEMPERATURE
SENSORS
FAN
TEMP
CUT-OFF
H.V.
DC
Eg2
-Eg1
EBS
TRANSFORMER
AC
FILAMENT
H.V.
AC
AC
SCREEN
AC GRID
AC
LOGIC
STBY/
OPR
SOFT
START
(See schematic)
FAN
ON/OFF
FUSE
AC MAINS
AC QSK