Elecraft K1BKLTKT LCD Mod Kit User Manual
Page 3
a small amount of fresh solder to each connection to assist in initially 'wetting' the solder wick
during the solder removal process. Use a moderate soldering iron tip temperature (725 °F / 385
°C) and try to not dwell on a joint longer than necessary to remove the solder. Excessive heat (or
too long a dwell time) can result in lifted PC board pads or traces.
12.
Using solder wick or another desoldering method, preferably a vacuum-type solder sucker,
carefully remove any solder remaining in the LCD pin holes from which the pins have been
removed in the step above. NOTE that, in order to easily use solder wick for this purpose, you
may find it easier to add a small amount of fresh solder to each connection to assist in initially
'wetting' the solder wick during the solder removal operation. Use a moderate soldering iron tip
temperature and try to not dwell on a joint longer than necessary to remove the solder.
13.
Carefully remove the thick black rubber spacer beneath the LCD display. There may be a thin
plastic film which has adhesive on it which remains after the spacer is removed. You can use a
fingernail to lift this film for the PC board. Finally, you can use alcohol (or lacquer thinner) to
soften any remaining adhesive to permit its complete removal from the PC board.
Preparation of the Backlight Installation Site
Using a pair of flush-cutting wire cutters, flush-trim all of the component leads which are located
between the two rows of the LCD PC board pads you cleared when you removed the old LCD (above).
Flush-trimming these leads ensures that the new LCD will fit properly when it is installed in later steps.
Installation of the LCD Backlight
Note: During this part of the modification, you will be
working with the front (switch & display) side of the
Front Panel PC board. Please take time now to orient
yourself with the section of the PC board which will
be involved and match it against the illustration to the
right.
14.
Locate the Insulator Card assembly. This assembly will include a pre-installed piece of double-
sided foam tape. DO NOT REMOVE THE PROTECTIVE PAPER COVERING THE
ADHESIVE SIDE OF THE TAPE. When properly installed, this insulating card will fit