Table of Contents
Advertisement
SV-2
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
2.
Diodes
3.
PCB sockets
4.
Transistors
5.
Electrolytic
capacitors
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.
Mounting orientation of no importance.
Observe the polarity!
The negative end of the diodes is marked with
a ring. This is shown in the PCB layout.
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.
Observe the polarity! One of the two leads
(the shorter one) is marked with a minus sign.
English
Page 13
Advertisement
Table of Contents
