-27-
1. Receive the 16-step gray scale video signal with
Input 3 [VIDEO]
mode.
2. Enter the service mode.
3. Connect an oscilloscope to test point “
TP531
” (+) and
chassis ground (-).
4. Select group no. “
6
”, item no. “
11
” and change data
value to adjust the pedestal level and black level to be
the same level.
5. Connect an oscilloscope to test point “
TP501
” (+) and
chassis ground (-).
6. Select item no. “
12
” and change data value to adjust
the pedestal level and black level to be the same
level.
7. Connect an oscilloscope to test point “
TP561
” (+) and
chassis ground (-).
8. Select item no. “
10
and change data value to adjust
the pedestal level and black level to be the same
level.
Pedestal Lebel = Black Lebel
1. Receive the 16-step gray scale computer signal with
Input 1 [COMPUTER]
mode.
2. Enter the service mode.
3. Project only green light component to the screen.
4. Select group no. “
5
”, item no. “
11
” and change data
value to obtain the minimum flicker on the screen.
5. Project only blue light component to the screen.
6. Select item no. “
12
” and change data value to obtain
the minimum flicker on the screen.
7. Project only red light component to the screen.
8. Select item no. “
10
” and change data value to obtain
the minimum flicker on the screen.
A/D Offset adjustment
Common Center adjustment
[PC WHITE BALANCE ADJUSTMENT]
1. Receive the 16-step gray scale computer signal with
Input 1 [COMPUTER]
mode.
2. Enter the service mode.
3. Select group no. “
4
”, item no. “
7
” (Red) or “
8
” (Blue),
and change data values respectively to make a prop-
er white balance.
[AV WHITE BALANCE ADJUSTMENT]
4. Receive the 16-step gray scale video signal with
Input 3 [VIDEO]
mode.
5. Enter the service mode.
6. Select group no. “
4
”, item no. “
7
” (Red) or “
8
” (Blue),
and change data values respectively to make a prop-
er white balance.
Confirm that the same white balance is obtained in
video and computer input.
White Balance adjustment
If you find the color shading on the screen, please
adjust the white uniformity by using the proper comput-
er and “Color Shading Correction” software supplied
separately. The software can be ordered as follows;
COLOR SHADING CORRECTION SOFTWARE
Service Parts No.
645 051 2308
NOTE ON WHITE UNIFORMITY
ADJUSTMENT
1. Receive the 16-step gray scale video signal with
Input
3 [VIDEO]
mode.
2. Enter the service mode.
3. Connect an oscilloscope to test point “
TP531
” (+)
and chassis ground (-).
4. Select group no. “
4
”, item no. “
4
” and set data value
to “600”, and then decrease data to adjust waveform
“a” to be minimum amplitude.
5. Connect an oscilloscope to test point “
TP501
” (+)
and chassis ground (-).
6. Select item no. “
5
” and set data value to “600”, and
then decrease data to adjust waveform “a” to be mini-
mum amplitude.
7. Connect an oscilloscope to test point “
TP561
” (+)
and chassis ground (-).
8. Select item no. “
3
” and set data value to “580”, and
then decrease data to adjust waveform “a” to be mini-
mum amplitude.
White Level
(a)
Video Gain adjustment
1. Receive the 16-step gray scale video signal with
Input 3 [VIDEO]
mode.
2. Enter the service mode.
3. Select group no. “
4
”, item no. “
6
” and change data
value to reproduce the proper gray scale picture on
the screen.
Video Gamma Shift adjustment
Содержание PLC-XP41
Страница 47: ... 47 R TP21R G TP21G B TP21B R S H OUT TP561 TP1561 G S H OUT TP531 TP1531 B S H OUT TP501 TP1501 Waveforms ...
Страница 49: ... 49 IC Block Diagrams AD8183ARU AD8185ARU Selector IC101 IC201 IC5203 BA7078AF Sync Detector IC7141 ...
Страница 50: ... 50 CXA2101AQ RGB Matrix IC4101 IC Block Diagrams BH3540 Volume Control IC1652 ...
Страница 51: ... 51 IC Block Diagrams FA5332M P F Controller IC601 FA7612CA PWC Controller IC6602 IC6603 IC6616 ...
Страница 53: ... 53 IC Block Diagrams L3E07050 Color Gamma Correction Timing Controller IC401 LB1641 Motor Drive IC1602 IC1611 ...
Страница 54: ... 54 LB1645 Motor Drive IC1601 LC863316 SUB CPU IC1851 IC Block Diagrams ...
Страница 55: ... 55 ML60851 USB I F IC9801 M62393 D A IC212 IC2381 IC Block Diagrams ...
Страница 56: ... 56 M62399 D A IC3501 IC3551 IC Block Diagrams PW365 System Control Scan Converter IC301 ...
Страница 57: ... 57 STR Z2156 Power Switching IC651 IC Block Diagrams SII161ACT DVI I F IC8001 ...
Страница 58: ... 58 TA1287 RGB YUV Converter IC4551 TB1274AF Video Decoder IC1101 IC Block Diagrams ...
Страница 59: ... 59 IC Block Diagrams TDA7056 Audio Output IC1631 IC1632 ...
Страница 89: ...MA8 XP4600 MA8 XP46L00 MB8 XP4100 MB8 XP41L00 89 Mechanical Parts List 51 a 51 43 43 51 b 23 a 23 b 23 ...
Страница 93: ...MA8 XP4600 MA8 XP46L00 MB8 XP4100 MB8 XP41L00 93 ...
Страница 94: ... MA8AA Apr 2002 BB 400 Printed in Japan SANYO Electric Co Ltd ...
Страница 95: ...Diagrams Drawings PLC XP46 PLC XP46L PLC XP41 PLC XP41L ...