tams elektronik 43-02345, Manual

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tams elektronik
!
English WD-34 | WD-34.2 | WD-34.M
Assembly
Proceed according to the order given in the list below. First solder the
components on the solder side of the PCB and then cut the excess
wires with the side cutter. Follow the instructions on soldering in
section 3.
Caution: Several components have to be mounted according to
their polarity. When soldering these components the wrong way
round, they can be damaged when you connect the power. In the
worst case the whole circuit can be damaged. At the best, a wrongly
connected part will not function.
1. Resistors
(except R4) Mounting orientation of no importance.
2. Diodes, Zener
diodes Observe the polarity!
The negative end of the diodes is marked with
a ring. This is shown in the PCB layout.
3. Ceramic
Capacitors Mounting orientation of no importance.
4. Resistor R4
5. IC sockets Mount the sockets that way, the marking on
the sockets show in the same direction as the
markings on the PCB board.
6. Light emitting
diodes (LEDs) Observe the polarity!
With wired LEDs the longer lead is always the
anode (positive pole).
7. Transistors for a
low power rating Observe the polarity!
The cross section of transistors for a low
power rating in SOT-packages is shown in the
PCB layout.
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