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K2 K3 | SERVICE MANUAL
INDEX
Final inspection (DC mains)
By means of the PSU AUX VOLTAGE CABLE, and the K
LGT MAINS DC CABLE, connect the board to two DC
power supply and slowly increment the voltages to the
illustrated values in order to check the absorption. (Fig.
31)
Mains Inlet: 50V: 20mA ± 10%
CN5: 18V: 40mA ± 10%
If the outcome is positive,repeat the test inverting the
polarity of the MAINS DC CABLE in order to check the
Diodes Bridge integrity.
(Fig. 31)
50V 20mA
18V 40mA
50V 20mA
18V 40mA
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