Power Lens And Shutter System And Abnormality - Sanyo PLC-XF1000 Service Manual

Troubleshooting

Power Lens and Shutter System and Abnormality

LENS_LE
LENS_HC
LENS_RE
LENS_TOP
LENS_VC
LENS_BOT
LENS_L
LENS_R
ZOOM+
ZOOM-
FPGA(NIOS)
IC5861
FOCUS+
FOCUS-
LENS_UP
LENS_DOWN
SHUTTER_SW1
SHUTTER_SW2
POSITION_DET1
POSITION_DET2
IC5801
42
FPGA(IO)
MAIN BOARD
1. Check that the Vcc-voltages are correct.
2. Check that the PF_MOTOR signal is correct.
Pin14 of K8E
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 LENS_TOP signal is correct.
Pin 2 of K8E L : TOP
8. Check that the LENS_BOT signal is correct.
Pin 1 of K8E L : BOTTOM
9. Check that the LENS_VC signal is correct.
Pin 17 of K8E Center position=The edge of "H to L" or "L to H. "
10. Check that the LENS_LE signal is correct.
Pin 9 of K8N L : LEFT
11. Check that the LENS_RE signal is correct.
Pin 10 of K8N L : RIGHT
12. Check that the LENS_VC signal is correct.
Pin 11 of K8N Center position=The edge of "H to L" or "L to H. "
13. Check that the SHUTTEER control signals are correct.
Pins 18 and 19 of K8E
14. Check that the POSITION_DET1, POSITION_DET2 signals are correct.
Pins 20 and 21 of K8E
POSITION_DET1: L, POSITION_DET2: H : SHUTTER OPEN
POSITION_DET1: H, POSITION_DET2: L : SHUTTER CLOSE
MOTOR BOARD
1. Check that the Vcc-voltages are correct.
2. Check that the PF_MOTOR signal is correct.
Pin14 of K65A.
3. Check that the LENS SHIFT up and down signals are correct.
Pins 5 and 6 of IC6501.
4. Check that the LENS SHIFT left and right signals are correct.
Pins 5 and 6 of IC6502.
5. Check that the FOCUS up and down signals are correct.
Pins 5 and 6 of IC5531.
6. Check that the ZOOM up and down signals are correct.
Pins 5 and 6 of IC5551.
K8E K65A
15 15 LENS_LE
25 25 LENS_HC
16 16 LENS_RE
2 2 LENS_TOP
17 17 LENS_VC
1 1 LENS_BOT
H-LENS SHIFT
8 8 LENS_L 5
MOTOR DRIVE
9 9 LENS_R 6
12 12 ZOOM
ZOOM + 5
MOTOR DRIVE
ZOOM - 6
13 13
FOCUS
10 10 FOCUS + 5
MOTOR DRIVE
11 11 FOCUS - 6
6 6 V-LENS SHIFT
LENS_UP
5
MOTOR DRIVE
LENS_DOWN
6
7 7
V-LENS SHIFT
18 18
SHUTTER_SW1
5
MOTOR DRIVE
19
SHUTTER_SW2
19 6
20 20
21 21
14 14
PF_MOTOR
H: Normal
H: Normal
Motor-driven lens system.
K65L
LENS_LE
LENS_HC
LENS_RE
K65E
TOP_DET
VC_DET
BOT_DET
K65F
IC6502
2 LENS-L
10 LENS-R
7, 8
IC5551
ZOOM-
2
ZOOM+
10
7, 8
IC5331
2 FOCUS-
10 FOCUS+
7, 8
IC6501
LENS-UP
2
10 LENS-DOWN
7, 8
IC6551 K65E
2 SHUTTER_SW2(+)
SHUTTER_SW1(-)
10
7, 8
POSITION_DET1
POSITION_DET2
Zoom and focus motor drive feature does
not exist in some particular projection lens.
16V
MOTOR
7. Check that the LENS SHIFT motor drive signals are correct.
Pins 10 and 2 of IC6501 and IC6502.
8. Check that the FOCUS motor drive signals are correct.
Pins 10 and 2 of IC5531.
9. Check that the ZOOM motor drive signals are correct.
Pins 10 and 2 of IC5551.
10. Check that the SHUTTER control signals are correct.
Pins 5 and 6 of IC6551.
11. Check that the SHUTTER motor drive signals are correct.
Pins 10 and 2 of IC6551.
Motor drive IC block diagram
LB1641N/LB1645N
+B 8
4
VZ
Truth table
Input
5 6
H L
L H
L L
-15-
(Zoom, Focus and lens shift.)
H
L
The waveform edges are center positions.
( H to L and L to H )
Projection lens and lens shift system
S1
S2
S3
5
M
10 2
6
S1
S2
1
S1=oN , otHer=oFF ForWArd (reverse) drIVe
S2=oN , otHer=oFF reVerSe (forward) drIVe
S3=oN , otHer=oFF BrAKING
IC6501/IC6502/IC5531/IC5551/IC6551
Output
Operation
2 10
H L
Forward(reverse) drive
L H
Reverse(forward) drive
L L Braking
INPut
oN/oFF
coNtroL
INPut
<FF>