WordClock-2 Assembly Guide 4/20/20 Version 1.3
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Introduction
WordClock-2 assembly should be attempted only by experienced builders. Although assembly
is straightforward and not difficult, there are several surface mount parts that must be carefully
soldered to the boards. The kit may be returned for a full refund less shipping within 30 days of
purchase, only if assembly has not been attempted.
This manual is for six and eight digit WordClock-2 versions. Additional components or changes
for the eight digit version, are in parenthesis.
Assembly
WARNINGS!
DRILL HOLES IN THE CASE BASE FIRST. USE THE CIRCUIT BOARD AS A TEMPLATE.
DO NOT SOLDER THE MICROCONTROLLER DIRECTLY TO THE BOARD, USE HEADERS.
EVERYTHING ON THE DISPLAY BOARD GOES ON THE BACK, SILK SCREENED SIDE,
EXCEPT THE DISPLAYS AND THE COLON LEDs.
USE A GOOD QUALITY, UL LISTED, 12V POWER SUPPLY.
Case
If you purchased the optional acrylic case, this would be a good time to mark and drill the holes
in the base. It is easiest to use an unpopulated circuit board for this purpose. The precise
distance between holes is 156mm wide by 34.5mm deep (156 x 34.5).
The board should not
be centered on its base because the LED displays extend beyond the front of the board.
Step 1 – Build the Main Board
•
Separate the main board from the display board by bending along the V-score line, if not
shipped already separated.
