Motor Control Problems - Eiki LC-WUL100 Service Manual

Troubleshooting

Motor control problems

152
FOCUS+
39
FOCUS-
40
ZOOM+
443
ZOOM-
IC4801
I/O
EXPANDER
<TE7783>
IC301
SYSTEM
CONTROL
<PW392>
178
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
PW_SCL0
PW_SDA0
306
250
22
218
138
STOP
LENS_UD_PWM L
LENS_UD_SW ANY
STOP
LENS_LR_PWM L
LENS_LR_SW ANY
3
1
IC5502
BUFFER
<74LVC14>
11
13
IC6501
SW
<TC7W53>
77 1 1
7
LENS_UD_PWM
5
7 6 3
LENS_UD_SW
IC6551
INVERTER
<TC74ACT>
76 1 13
7
LENS_LR_PWM
5
6 6 11
LENS_LR_SW
IC6541
5
F_MOTOR_SW
SW
<TC7W53>
78
MOTOR_STEP
75
SHUTTER_SW+
IC5201
76
SHUTTER_SW-
FPGA
<XC3S50A>
126
SHUTTER_POSI1
168
SHUTTER_POSI2
2
IRIS_STB
7
IC601
IRIS_CW
IRIS CONTROL
<TB6608FNGP>
14
IRIS_RST
19
IRIS_EN
20
IRIS_CK
UP DOWN
H H FOCUS -
H L FOCUS +
RIGHT LEFT
H H ZOOM -
H L ZOOM +
4 5
FOCUS+_EX
IC5501
FOCUS
DRIVE
<BA6287>
2 4
FOCUS-_EX
10 5
ZOOM+_EX
IC5521
ZOOM
DRIVE
<BA6287>
12 4
ZOOM-_EX
2 18
LENS_DOWN
IC6502
UP/DOWN
DRIVE
<BA6920>
4 20
LENS_UP
12 18
LENS_LEFT
IC6521
LEFT/RIGHT
DRIVE
<BA6920>
10 20
LENS_RIGHT
11
4
IC5541
1
STEPPING
7
MOTOR
5
DRIVE
<NJM2671>
2
1
4
IC5561
MOTOR
DRIVE
5 <BA6287>
7
IC5551
4 2
IC5552
4 2
11
13
10
8
STOP + -
H H L
H L H
STOP + -
H H L
H L H
-75-
K8M
FOCUS
1
1
M
7
2
ZOOM
1
3
M
7
4
LENS SHIFT
K8L
UP/DOWN
9
5
M
5
4
LENS SHIFT
LEFT/RIGHT
9
3
M
5
2
LENS POSITION
SENSOR
8
9
10
11
12
13
K8N
FILTER
2
M
3
4
5
SHUTTER
K8P
M
1
2
3
5
K8A
A-
1
A
2
IRIS
B
3
B-
4