User manual

ASURO - 24
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5.3. ASURO operation
Caution: The processor (IC1) is not to be inserted yet!
Now be careful and turn the main switch ON. Both back-LEDs (D15, D16) should be glowing dimly.
If they do not glow dimly, pleasy switch off the system immediately and continue reading in chapter
6.3
. If you are succesful, switch the system OFF and insert
IC1 (Processor) and IC3
(AND Gate) (see  g.
5.1).
Sometimes the legs of an IC have to be bent carefully in order to insert all legs into the contact
holes of the socket. This can be done easily if you take the IC and press the side with all legs on
the row parallel on the surface of a  at table.
Processor IC1 ATmega8 and Gate IC3 CD4081both are electrostatically sensitive
devices. They might be destroyed by touching them, if you do have charged yourself
electrostatically, which may easily occur by walking over a non-conductive  oor.
Before working with these parts, it is a good idea to wear a grounding bracelet or at least to
touch a metallic case of grounded equipment or a heating radiator.
 g.5.1.: ASURO after installing the ICs
Electronics