Motor Control Problems - Eiki LC-WXL200 Service Manual

Troubleshooting

Motor control problems

IC301
SYSTEM
CONTROL
<PW392>
LENS_UD_PWM
LENS_UD_SW
LENS_LR_PWM
LENS_LR_SW
152
FOCUS+
39
FOCUS-
40
ZOOM+
443
ZOOM-
IC6501
<TC7W53>
77 1
LENS_UD_PWM
5
7
LENS_UD_SW
IC4801
I/O
76
1
EXPANDER
LENS_LR_PWM
<TE7783>
5
6
LENS_LR_SW
IC6541
5
F_MOTOR_SW
<TC7W53>
78
179
LENS_CH_POSI_EX
19
LENS_L_POSI_EX
134
LENS_R_POSI_EX
241
LENS_BOT_EX
340
LENS_TOP_EX
67
LENS_CV_EX
MOTOR_STEP
75
IC5201
76
FPGA
<XC3S50A>
126
168
PW_SCL0
PW_SDA0
STOP UP DOWN
L H H
ANY L H
STOP RIGHT LEFT
L H H
ANY L H
3 4
FOCUS+_EX
1 2
FOCUS-_EX
IC5502
INVERTER
<74LVC14>
11 10
ZOOM+_EX
13 12
ZOOM-_EX
SW
1 2
7
LENS_DOWN
3 4
6
LENS_UP
IC6551
INVERTER
<TC74ACT>
13 12
7
LENS_LEFT
6 11 10
LENS_RIGHT
SW
11
IC5541
STEPPING
7
MOTOR
DRIVE
<NJM2671>
4
IC5561
SHUTTER_SW+
MOTOR
DRIVE
5 <BA6287>
SHUTTER_SW-
4
SHUTTER_POSI1
4
SHUTTER_POSI2
STOP +
FOCUS - H H
FOCUS + H L
STOP +
ZOOM - H H
ZOOM + H L
-74-
K8M
FOCUS
5 1
1
IC5501
M
FOCUS
DRIVE
<BA6287>
4 7
2
ZOOM
5 1
IC5521 3
M
ZOOM
DRIVE
<BA6287>
4 7
4
LENS SHIFT
K8L
UP/DOWN
18 9
IC6502 5
M
UP/DOWN
DRIVE
<BA6920>
20 5
4
LENS SHIFT
LEFT/RIGHT
18 9
3
IC6521
M
LEFT/RIGHT
DRIVE
<BA6920>
20 5
2
LENS POSITION
SENSOR
8
9
10
11
12
13
K8N
FILTER
4
2
M
1
3
5
4
2
5
SHUTTER
K8P
1
M
1
7
2
IC5551
2
3
IC5552
2
5
-
L
H
-
L
H