TROUBLESHOOTING
13
DCS-1600
2-2 Troubleshooting chart (Continued)
Troubleshooting "STEP5" ~Checking each sensor and switch (Continued)~
(4)
Yes
No
A
C
D
B
(5)
No
Yes
E
No
Yes
H
F
G
K
L
(6)
No
Yes
M
P
Q
N
J
A:
Inspect resistance between terminal “1” and “2” of
variable speed switch as follows: (Refer to Section
5-1)
1) Its value is 100 Ω or less when pressing the switch
to the end.
2) Its value is between 70 kΩ and 130 kΩ when not
pressing the switch.
B:
Go to page 11 (8).
C:
Replace the variable speed switch with new one.
(Refer to Section 5-2)
D:
Go to page 11 (9).
E:
Is there any trouble in terminals and leads of mo-
tor’s 5-pole terminal ?(Refer to Section 6-1)
F:
Repair or replace defective objects as needed.
(Refer to Section 6-2)
G:
Go to page 11 (9).
H:
Is resistance between terminal “4” and “5” of mo-
tor’s 5-pole terminal about 0Ω (short circuit) ?
(Refer to Section 6-1)
J:
Go to page 11 (8).
K:
Replace the motor with a new one. (Refer to Sec-
tion 6-2)
L:
Go to page 11 (9)
M:
Is control board hot?
N:
Go to page 11 (8).
P:
Cool the control board to normal temperature.
Q:
Go to page 11 (9).
Inspecting variable resistance part
Inspecting hall effect sensor of motor
Inspecting temperature of control board
