User manual

WD-34 English
8. Solder pins
9. Transistors for a
high power
rating
Observe the polarity!
With transistors for a high power rating in TO
packages (e.g. BD types) the unlabelled back
side is marked in the PCB layout by a thick
line.
10. Electrolytic
capacitors
Observe the polarity!
One of the two leads (the shorter one) is
marked with a minus sign.
The PCB has to be inserted either with two
radial electrolytic capacitors 220 µF (C2 and
C3) or with two axial electrolytic capacitors
220 µF (C4 and C5) depending on the
package contents.
11.
Terminal strips
Put together the terminal strips before
mounting them.
12. ICs in DIL-
housing
Insert the ICs into the soldered socket.
Do not touch the ICs without first discharging
yourself by touching a radiator or other
grounded metal parts.
Do not bend the "legs" when inserting them
into the sockets. Check that the markings on
the PCB, the socket and the IC show to the
same direction.
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