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VLF-3 Rev #1C Assembly Instructions
20
3. INSTALL THE JACKS AND CONNECTORS TO THE FACEPLATE
Install the jacks and the external power connector to the faceplate by inserting them
from the back side and tightening the knurled nut on the front side. Mount the 2-screw
antenna terminal to the faceplate by placing the terminal in front of the faceplate and
using the two remaining 4-40 1/4” screws and nuts. Mount the BNC connector by
removing the nut and washer, inserting the connector from the front of the panel and
tightening the nut over the washer.
4. ATTACH THE PCB TO THE FACEPLATE
Remove the nuts and washers from the standoffs and the nuts from the shafts of the
10k pots. Attach the faceplate to the PCB by fitting the faceplate over the switches and
LEDs. Tighten the screws and washers to the standoffs. Tighten the nuts on the 10k
pot shafts.
5. SOLDER WIRES TO JACKS AND CONNECTORS
To solder the wire to a jack contact:
1. Insert the wire through the hole in the tab,
2. Press the soldering iron to both the wire and the tab and heat for 5 seconds,
3. Apply the solder to the side away from the soldering iron, making sure that the
wire and tab melt the solder, not the iron.
Use the following figure as a guide for wiring connections to the jacks and the external
power connector.
See also the photo on the next page.
The monaural jack
(white body) is the MIC
jack. The blue wire
connects to this jack.
The center two are the
Audio and Data jacks
and are the black body
stereo type.
The round one is the
external power
connector.
2
White
White
White
MIC
AUDIO
DATA
POWER
Yellow
Blue
Orange
Orange
Black
Red
Yellow
NOTES:
1. The yellow and orange wires must cross to
reach the correct jacks.
2. The white ground wire and the black wire both
connect to Location 2
.
Содержание VLF-3
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