Airwell CKD 036, Service Manual

Page: 90 / 122

13-15
TROUBLESHOOTING
SM CKDDCI 2-A.3 GB
6) Connect the “V

” side of the tester to the “P” terminal of
driver and the “COM” side of the tester to “U”, “V” and
“W” of driver, measure the diode voltage.
Voltage should be “OL” (Over Load).
7) Connect the “COM“ side of the tester to the “N” terminal
of driver and the “V

” side of the tester to “U”, “V” and
“W” of driver, measure the diode voltage.
Voltage should be “OL” (Over Load).
8) Connect the “V

” side of the tester to the “N” terminal
of driver and the “COM” side of the tester to “U”, “V” and
“W” of driver, measure the diode voltage.
Voltage should be 0.4~0.8VDC.
9) Connect the “COM“ side of the tester to the “P” terminal
of driver and the “V

” side of the tester to “T/RB” of
driver, measure the diode voltage.
Voltage should be 0.3~0.8VDC.
10) Connect the “V

” side of the tester to the “P” terminal
of driver and the “COM” side of the tester to “T/RB” of
driver, measure the diode voltage.
Voltage should be “OL” (Over Load).
OL
RB
S R
P1
N
P
U
V
W
OL
RB
S R
P1
N
P
U
V
W
RB
S R
P1
N
P
U
V
W
0.5
0.5
RB
S R
P1
N
P
U
V
W
RB
S R
P1
N
P
U
V
W
OL