tams elektronik S88-4 Manual page 18

English
7. Transistors
8.
Terminal strips
9. Rotary code
switch
10. RJ-45 sockets
11. ICs in DIL-
housing
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 18
Observe the polarity!
The cross section of transistors for a low
power rating in SOT-packages is shown in the
PCB layout.
Put together the double terminal strips before
mounting them.
Solder in the code switch so that you can
adjust it from the outside after mounting it.
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.
S88-4