Vertex Standard VX-4000L Service Manual page 3

Operating Manual Reprint
Side Panel
Microphone Jack (It is on both sides.)
Connect the microphone plug to this jack.
REAR (Heatsink)
À
Antenna Socket
The 50-ohm coaxial feedline to the antenna must
be connected here, using a type-M (PL-259) plug.
Á
External Speaker Jack
An external loudspeaker may be connected to this
2-contact, 3.5-mm mini-phone jack.
Caution: Do not connect this line to ground, and be
certain that the speaker has adequate capa-
bility to handle the audio output from the
VX-4000.
1-2
C & C
ONTROLS
Microphone Jack
•
ONNECTORS
‚ ƒ
„
Â
13.8-V DC Cable Pigtail w/Connector
The supplied DC power cable must be connected
to this 2-pin connector. Use only the supplied
fused cable, extended if necessary, for power con-
nection.
Ã
DSUB 25-Pin Accessory Connector
External TX audio line input, PTT (Push To Talk),
Squelch, and external RX audio line output sig-
nal may be obtained from this connector for use
with accessories such as data transmission/recep-
tion modems, ets.
VX-4000 VHF Low-band Service Manual