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ELECTRONIC CARD OPERATION CHECK
7.6 ELECTRONIC CARD OPERATION CHECK
A) Card supply
To make this test it is necessary to have:
– The key in the «ON» position
– Connector CN2 (1) disconnected from the card,
with all the other connectors attached.
In this situation the pilot lamp should come on.
If the indicator light go out when connector (1) is
inserted, the earth connections of the microswitch-
es must be checked.
B) Safety and service supply check
This check is done with the tester in the Voltmeter
function (Volt DC 0 ÷ 20), with the black ferrule to
earth and the red one on terminal 3 (CN2) of the
card's connector (2).
– The key in the «ON» position.
The reading on the tester shows the battery's volt-
age.
C) Checking the operation of the self-setting
protection
For this test, put everything in the same situation as
in point "A".
By connecting terminal 3 of the CN2 connector of
the electronic card (3) to the frame's earth, the
pilot lamp should go out due to the protection cut-
ting in. Eliminating the connection to earth, the pilot
lamp should come on again.
NOTE
During this test, the self-setting protection reaches
very high temperatures (around 160 °C) which are to
be considered normal. Similarly, there might be
some smoke inside the transparent box which is
due to the overheating of the powder inside.
WARNING! Do not touch this component of the
card until it has cooled down.
© by GLOBAL GARDEN PRODUCTS
WORKSHOP MANUAL
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