Page 254 - CITS - Electronic Mechanic - TT - 2024
P. 254
ELECTRONICS MECHANIC - CITS
3 Trace the line paths between the first or the closest component connected to each terminal pads.The circuit
diagram shows that there are coil filter in both lines, connect the tester across each coil terminal leds, your not
just checking the lines here but also checking the the coil as well.
4 Now the next step is to leave behind the line paths between the coil to the EMI-Filter for it is uncheckable
beyond that paths for the EMI- filter is an IC. you need to remove it first before you can check on that lines,
which will be done later at the last steps of procedures. Now next to move on to the opening lines and
component where the test probe can connect with, the two filter capacitors and both coils which are an open
path where you can connect the test probe on it. now connect or attach both probes at the end of each line
indicated in red.
5 Now check the remaining open path which is the Resistor, you can’t check the line paths on those area for it
ends up connected to Retu IC. So just then proceed to check its resistance value instead.
239
CITS : E & H - Electronics Mechanic - Lesson 130 - 145
