Ten-Tec SSB-CW-AM Instruction Manual page 27

PHASE 1.0
Display Board Assembly
All parts used for the Display Board are packed together with the
board itself . Except for the common 1N4148 diode, all parts in
the Display Board kit bag are unique to this assembly phase,
even the resistors! (The display board uses 1/8 watt resistors,
while all other resistors are 1/4 watt.)
All parts except J1 and J2 are mounted on what we will refer to
as the FRONT or silkscreened side of the display board, with
soldering done on the back side. J1 and J2 are mounted on the
back, soldered on the front.
INSTALLING U1-U6 DISPLAY LED MODULES:
1-1. The pin arrangements of U1-U6 permit only
one possible orientation on the board. Insert U1 in its board
position, making very sure all four support legs are squarely
seated on the board. Solder ONE pin in each row. Before further
soldering, CHECK carefully to make sure the display is squarely
against the board. If necessary, reheat and adjust the two
connections. Because of the length of the pins, you will
probably find it easiest to nip excess length after soldering each
pin, to provide clearance to solder the next connection. Solder
and nip all pins of U1.
1-2. Install U2-U6 exactly as explained in 1-1 for U1.
CAUTION: To install the LED indicators, you will be working
with the receiver's front panel to get a good fit. Be VERY careful
with your soldering iron tip during these processes so as not to
scar (melt) the front panel!
1-3a. Preparation to install LED's:
Lay the receiver's molded front panel face down on a clean, non-
abrasive surface. (A dry wash cloth works nicely, or use the
packing foam from your kit.)
1254 Assembly 6