-27-
Electrical Adjustments
1. Receive the 16-step grey scale computer signal.
2. Set to
COMPUTER
mode.
3. Enter the service mode.
4. Connect a digital voltmeter to test point “
TP25R1
” (+)
and chassis ground (-).
5. Select group no. “
3
”, item no. “
0
” and change data
value to adjust the voltage to be
7.30
±0.05V.
6. Connect a digital voltmeter to test point “
TP25G1
” (+)
and chassis ground (-).
7. Select group no. “
3
”, item no. “
1
” and change data
value to adjust the voltage to be
7.30
±0.05V.
8. Connect a digital voltmeter to test point “
TP25B1
” (+)
and chassis ground (-).
9. Select group no. “
3
”, item no. “
2
” and change data
value to adjust the voltage to be
7.30
±0.05V.
1. Receive the 16-step grey scale computer signal.
2. Set to
COMPUTER
mode.
3. Connect an oscilloscope to test point “TP3551” (+)
and chassis ground (-).
4. Enter the service mode, select group no. “
3
”, item no.
“
7
” and change data value to adjust amplitude “a” to
be
5.5
±0.1V.
(a)
121v
Signal Center adjustment
121c
NRS adjustment
1. Receive the 16-step grey scale computer signal.
2. Set to
COMPUTER
mode.
3. Enter the service mode.
4. Connect an oscilloscope to test point “
TP25R1
” (+)
and chassis ground (-).
5. Select group no. “
3
”, item no. “
3
” and change data
value to adjust amplitude “a” to be
10.0
±0.1V.
6. Connect an oscilloscope to test point “
TP25G1
” (+)
and chassis ground (-).
7. Select group no. “
3
”, item no. “
4
” and change data
value to adjust amplitude “a” to be
10.0
±0.1V.
8. Connect an oscilloscope to test point “
TP25B1
” (+)
and chassis ground (-).
9. Select group no. “
3
”, item no. “
5
” and change data
value to adjust amplitude “a” to be
10.0
±0.1V.
(a)
black level
black level
b
Black Level adjustment
1. Receive the 16-step grey scale video signal.
2. Set to
VIDEO
mode.
3. Enter the service mode.
4. Connect an oscilloscope to test point “
TP201R
” (+)
and chassis ground (-).
5. Select group no. “
3
”, item no. “
14
” and change data
value to adjust the pedestal level and black level to be
the same level.
6. Connect an oscilloscope to test point “
TP201G
” (+)
and chassis ground (-).
7. Select group no. “
3
”, item no. “
15
” and change data
value to adjust the pedestal level and black level to be
the same level.
8. Connect an oscilloscope to test point “
TP201B
” (+)
and chassis ground (-).
9. Select group no. “
3
”, item no. “
16
” and change data
value to adjust the pedestal level and black level to be
the same level.
Pedestal level = Black level
(a)
1211x
Pedestal adjustment
Summary of Contents for PLC-XU45
Page 48: ... 48 CXA2101AQ RGB Matrix IC4101 IC Block Diagrams BA7078AF Selector IC6241 ...
Page 49: ... 49 CXD2064Q Digital Comb Filter IC2101 L3E01031 Level Shift IC3531 IC3561 IC Block Diagrams ...
Page 51: ... 51 ML60851 USB I F IC9801 M62393 D A IC2571 IC Block Diagrams ...
Page 52: ... 52 TA1318N AFC Detector IC6171 TB1274AF Video Decoder IC1101 IC Block Diagrams ...
Page 54: ... 54 ...
Page 82: ...ME3 XU4500 MF3 XU4600 82 47 44 44 47 44 44 Mechanical Parts List 47 57 56 47 47 Optical Parts ...
Page 83: ...ME3 XU4500 MF3 XU4600 83 44 44 54 67 Red 68 Green 69 Blue 45 45 45 Mechanical Parts List ...
Page 86: ...ME3 XU4500 MF3 XU4600 86 Mechanical Parts List 58 70 63 71 57 60 65 59 64 66 51 55 62 ...
Page 88: ... ME3A Mar 2003 BB 400 Printed in Japan SANYO Electric Co Ltd ...
Page 98: ...A10 PCB_ME3A ...
Page 113: ...1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L A18 15 Schematic Diagrams PLC XU45 46 Page A18 Left ...