Component Replacement; Leaded Components; Desoldering Iron Method; Component Cutting Method - Tait T880 II Series Adjustment Manual

M880-00
3

Component Replacement

3.1

Leaded Components

Whenever you are doing any work on the PCB that involves removing or fitting compo-
nents, you must take care not to damage the copper tracks. The two satisfactory meth-
ods of removing components from plated-through hole (PTH) PCBs are detailed below.
Note: The first method requires the use of a desoldering station, e.g. Philips SBC
314 or Pace MBT-100E.
3.1.1

Desoldering Iron Method

Place the tip over the lead and, as the solder starts to melt, move the tip in a circu-
lar motion.
Start the suction and continue the movement until 3 or 4 circles have been com-
pleted.
Remove the tip while continuing suction to ensure that all solder is removed from
the joint, then stop the suction.
Before
pulling the lead out, ensure it is not stuck to the plating.
If the lead is still not free, resolder the joint and try again.
Note: The desoldering iron does not usually have enough heat to desolder leads
from the ground plane. Additional heat may be applied by holding a sol-
dering iron on the tip of the desoldering iron (this may require some addi-
tional help).
3.1.2

Component Cutting Method

Cut the leads on the component side of the PCB.
Heat the solder joint
out from the component side: do
Fill the hole with solder and then clear with solderwick.
Copyright TEL
sufficiently
to allow
not
use undue force.
Component Replacement
easy
removal of the lead by drawing it
A3.1
10/07/00