tams elektronik
English
LC modules
1.
Resistors
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.
IC socket
Mount the socket that way, the marking on the
socket shows in the same direction as the
marking on the PCB board.
4.
Electrolytic
capacitors
Observe the polarity!
One of the two leads (the shorter one) is
marked with a minus sign.
5.
Transistors
Observe the polarity!
The cross section of transistors for a low
power rating in SOT-packages is shown in the
PCB layout.
6.
Solder pins
7.
IC
Insert the IC into the soldered socket.
Do not touch the IC without first discharging
yourself by touching a radiator or other
grounded metal parts.
Do not bend the "legs" when inserting it into
the socket. Check that the markings on the
PCB, the socket and the IC show to the same
direction.
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.
Page 22
