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Page 28
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Caution:
Do not touch the IC without first discharging yourself by touching a
radiator or other grounded metal parts. Do not bend the "legs" of the
IC.
Caution:
Electrolytic capacitors, transistors, ICs and diodes must be placed in the
right direction! If you solder them the wrong way the affected parts can
be damaged when you connect the power. In the worst case the whole
circuit can be damaged. In any case, a wrongly connected part will not
function.
Continue with the capacitors and the transistors. Then solder the
terminal strips X1 to X2. Before mounting, assemble the terminal strips.
Finally, insert IC1 to IC3 into the soldered IC-sockets.
Performing a visual check
Even if you have a ready-built module you must perform a visual check
that screws, plugs and other fasteners are firm and tight to exclude
transport damage.
Caution:
Do not power up the module yet.
Damaged material and/or incorrect handling of parts can always be a
danger. After assembling the kit, perform a visual inspection.
Check all nuts, pins and connections as well as the mechanical
connections for correct assembly.
Remove all loose parts, wire ends or drops of solder from the PCB.
Remove all sharp wire ends.
Check solder spots that are too close to each other for short circuits.
Check that all components are polarised correctly. When you have
taken all these precautions, go on to the next part.
