Eiki LC-XT4E, Руководство по обслуживанию

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S1
S2
S2
S3
S1
M
5
6
1
4
8 +B
2 10
LOGIC
VZ
INPUT
INPUT
ON/OFF
CONTROL
FORWARD (reverse) DRIVE
REVERSE (forward) DRIVE
BRAKING
S1=ON , OTHER=OFF
S2=ON , OTHER=OFF
S3=ON , OTHER=OFF
<FF>
Truth table IC1601/IC1611/IC1621/IC1631
Input
5
Operation
Output
6
H L
2 10
H L
L H L H
L L L L
Reverse(forward) drive
Braking
Forward(reverse) drive
Motor drive IC block diagram
IC1611
10
2
6
5
4
7, 8
10
2
6
5
4
7, 8
10
2
6
5
4
7, 8
10
2
6
5
4
7, 8
LENS_UP
LENS_DOWN
LENS_R
LENS_L
FOCUS+
FOCUS-
ZOOM+
ZOOM-
RIGHT DET.
CENTER DET.
LEFT DET.
K8E
K8N
Motor-driven lens system.
(Zoom, Focus and lens shift.)
Ass’y Main
K16H
K16A
LENS_L
LENS_R
LENS-UP
LENS-DOWN
FOCUS-
FOCUS+
ZOOM-
ZOOM+
MOTOR_EN
MOTOR_EN
MOTOR_EN
TOP DET.
BOTTOM DET.
FOCUS +
ZOOM +
ZOOM -
FOCUS -
IC1601
CENTER DET.
TOP DET.
BOTTOM DET.
CENTER DET.
TOP DET.
BOTTOM DET.
CENTER DET.
16V
P_FAIL
FOCUS
MOTOR DRIVE
ZOOM
MOTOR DRIVE
ASSY MOTOR & AUDIO
IC1631
MOTOR_EN
SHIFT L
SHIFT R
Vertical
shift
LENS_UP
LENS_DOWN
Projection lens and lens shift system
MOTOR_EN
IC801
IC1801
CPU
EXPANDER
I/O
P_FAIL
The waveform edges are center positions.
( H to L and L to H )
H
L
Horizontal
shift
IC1621
IC1611
Horizontal shift function does not exist
in some particular models.
Therefore IC1621, K8N, etc. do
not exist in those models.
9
11
10
2
17
1
8
9
12
13
10
11
6
7
14
73
2
17
1
8
9
12
13
10
11
6
7
14
K16G
Assembly Main
1. Check that the Vcc-voltages are correct.
2. Check that the POWER FAIL signal is correct.
Pin14 of K8E H: Normal
3. Check that the LENS SHIFT up and down signals are correct.
Pins 6 and 7 of K8E
4. Check that the LENS SHIFT left and right signals are correct.
Pins 8 and 9 of K8E
5. Check that the FOCUS up and down signals are correct.
Pins 10 and 11 of K8E
6. Check that the ZOOM up and down signals are correct.
Pins 12 and 13 of K8E
7. Check that the TOP DET. signal is correct.
Pin 2 of K8E L : TOP
8. Check that the BOTTOM DET. signal is correct.
Pin 1 of K8E L : BOTTOM
9. Check that the CENTER DET. signal is correct.
Pin 17 of K8E Center position=The edge of "H to L" or "L to H."
10. Check that the LEFT DET. signal is correct.
Pin 9 of K8N L : LEFT
11. Check that the RIGHT DET. signal is correct.
Pin 10 of K8N L : RIGHT
12. Check that the CENTER DET. signal is correct.
Pin 11 of K8N Center position=The edge of "H to L" or "L to H."
Assembly Motor audio
1. Check that the Vcc-voltages are correct.
2. Check that the POWER FAIL signal is correct.
Pin14 of K16A. H: Normal
3. Check that the LENS SHIFT up and down signals are correct.
Pins 5 and 6 of IC1631.
4. Check that the LENS SHIFT left and right signals are correct.
Pins 5 and 6 of IC1621.
5. Check that the FOCUS up and down signals are correct.
Pins 5 and 6 of IC1611.
6. Check that the ZOOM up and down signals are correct.
Pins 5 and 6 of IC1601.
7. Check that the LENS SHIFT motor drive signals are correct.
Pins 10 and 2 of IC1631 and IC1621.
8. Check that the FOCUS motor drive signals are correct.
Pins 10 and 2 of IC1611.
9. Check that the ZOOM motor drive signals are correct.
Pins 10 and 2 of IC1601.
-
Zoom and focus motor drive feature does
not exist in some particular projection lens
LB1641/1645N
Troubleshooting
●
Power Lens System Abnormality