DZ HT-7, Инструкция по сборке, Страница: 24 / 44

Page 24
( ) Attach the HT ‐ 7 ‐ 2 board to
the top chassis using two hex
nuts, one on the on/off/
volume control and one on the
BNC connector. Be careful not
to scratch the chassis. Dress
the wires neatly and position
them away from the heat sink.
( ) Insert the DC power jack into
the top chassis opening la ‐
beled 10 ‐ 12VDC IN. Attach the
washer and nut on the outside
and tighten the nut, being
careful not to scratch the
chassis.
( ) Place a 1/16” Nylon washer
over the two remaining longer
studs.
( ) Place the HT ‐ 7 ‐ 1 board onto
the studs.
( ) Place the solder lug that is
connected to the speaker over
the stud so that the lug
faces inward.
( ) Tighten the assembly using a
6 ‐ 32 hex nut on the side with
the solder lug and a 6 ‐ 32
KEPS nut on the other side.
Be very careful when tighten ‐
ing these nuts not to damage
the blue trimpots. Use needle
nose pliers and make very
slight turns until the nuts
are tight.
( ) Attach two 6 ‐ 32 angle brack ‐
ets to the top using two 6 ‐ 32
KEPS nuts. Align the side
with the non ‐ threaded opening
with the mounting studs. Ex ‐
ert pressure with one finger
to keep the brackets from
turning as they are tight ‐
ened. Sand or file the paint
off around the stud if neces ‐
sary to help keep the bracket
from turning.
( ) Bend the speaker leads in so
they do not protrude beyond
the side of the HT ‐ 7 ‐ 1 board.
( ) Connect the battery (if pre ‐
sent) to the 2 ‐ pin connector
(J4). It will be necessary to
flex the board slightly in
order to get the connector
on.
Refer to Pictorial 4.
( ) Align the hole in the metal
end piece with the hole in
the top cover. Insert the
plastic snap rivet into both
holes until the rivet head is
flush with the metal.
( ) Insert the assembled top into
the bottom chassis, compress ‐
ing the PTT switch as you do
so and allowing it to pop
through the opening in the
side. Secure the top to the
bottom using four 6 ‐ 32 x 1/4”
black flathead machine
screws.