User manual

tams elektronik
SAS modules English
Assembly of the HST PCB
1. Resistors Mounting orientation of no importance.
2. Diodes
Observe the polarity!
The negative end of the diodes is marked with
a ring. This is shown in the PCB layout.
3.
Electrolytic
capacitors
Observe the polarity! One of the two leads
(the shorter one) is marked with a minus sign.
4. Transistors
Observe the polarity!
The cross section of transistors for a low
power rating in SOT-packages is shown in the
PCB layout.
5. Relays
The mounting orientation is given by the
layout of the pins.
6. Terminal strips
Put together the terminal strips before
mounting them.
Performing a visual check
Perform a visual check after the assembly of the module and remove
faults if necessary:
 Remove all loose parts, wire ends or drops of solder from the PCB.
Remove all sharp wire ends.
 Check that solder contacts which are close to each other are not
unintentionally connected to each other. Risk of short circuit!
 Check that all components are polarised correctly.
When you have remedied all faults, go on to the next part.
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