[Voltage adjustment at the maximum fan speed]
1. Select Item no. "0" and Data. "3".
2. Select Item no. "3".
3. Connect a digital voltmeter to test point "TP12V1" (+) and chassis ground (-).
4. Change data value and set the digital voltmeter voltage value to 13.5 ± 0.1 V.
5. Select item no. "4".
6. Connect the digital voltmeter to test point "TP12V2" (+) and chassis ground (-).
7. Change data value and set the digital voltmeter voltage value to 13.5 ± 0.1 V.
2.3 Fan Voltage Adjustment (For LV-7355)
1. Set service mode to group no. "11".
[Voltage adjustment at the minimum fan speed]
1. Select Item no. "0" and Data. "1".
2. Select Item no. "1".
3. Connect a digital voltmeter to test point "TP12V1" (+) and chassis ground (-).
4. Change data value and set the digital voltmeter voltage value to 8.0 ± 0.1 V.
5. Select item no. "2".
6. Connect the digital voltmeter to test point "TP12V2" (+) and chassis ground (-).
7. Change data value and set the digital voltmeter voltage value to 9.0 ± 0.1 V.
[Voltage adjustment at the maximum fan speed]
1. Select Item no. "0" and Data. "3".
2. Select Item no. "3".
3. Connect a digital voltmeter to test point "TP12V1" (+) and chassis ground (-).
4. Change data value and set the digital voltmeter voltage value to 13.5 ± 0.1 V.
5. Select item no. "4".
6. Connect the digital voltmeter to test point "TP12V2" (+) and chassis ground (-).
7. Change data value and set the digital voltmeter voltage value to 13.5 ± 0.1 V.
2.4 Pedestal Adjustment
1. Receive the 16-step gray scale video signal.
2. Set to
VIDEO
mode.
3. Enter the service mode.
[R-Pedestal adjustment]
4. Connect an oscilloscope to test point "TP201R" (+) and chassis ground (-).
5. Select item no. "14" of group no. "3" and change data value to adjust the pedestal
level and black level to be same level.
[G-Pedestal adjustment]
6. Connect an oscilloscope to test point "TP201G" (+) and chassis ground (-).
7. Select item no. "15" of group no. "3" and change data value to adjust the pedestal
level and black level to be same level.
Part 3: Adjustment
3-10
Содержание D78-5311
Страница 9: ...Part 1 General Information ...
Страница 22: ...Part 2 Repair Information ...
Страница 43: ...Part 3 Adjustment ...
Страница 65: ...Part 4 Troubleshooting ...
Страница 82: ...Part 4 Troubleshooting 4 17 BA7078AF Selector IC6241 CXA2101AQ RGB Matrix IC4101 ...
Страница 83: ...Part 4 Troubleshooting 4 18 CXD2064Q Digital Comb Filter IC2101 L3E01031 Level Shift IC3501 IC3531 IC3561 ...
Страница 85: ...Part 4 Troubleshooting 4 20 ML60851 USB I F IC9801 M62393 D A IC2571 ...
Страница 86: ...Part 4 Troubleshooting 4 21 TB1274AF Video Decoder IC1101 TA1318N AFC Detector IC6171 ...
Страница 87: ...Part 4 Troubleshooting 4 22 FA7612CA PWC Controller IC65A IC671 IC681 STR Z2156 Switching Controller IC631 ...
Страница 88: ...Part 5 Parts Catalog ...
Страница 89: ......
Страница 107: ...Part 6 Electrical Diagrams ...
Страница 117: ......