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No Picture
No picture with all of
input sources
Check signal processing stage and LCD driving stage;
Check power supply circuit 15.5V_PNL, 3.3V_DI and peripheral circuit.
Check ICs IC501, IC531, IC561, IC401, IC301 and peripheral circuits.
No picture with PC2
[Analog]input source only
Check PC1/PC2-switching stage;
Check IC5201<PC1/PC2-SW> and peripheral circuit.
PC1/PC2_SW signal (PC2: H) is output from pin 11 of IC301<Scaler> and
applied to pin 26 of IC5201.
PC1:L, PC2:H
Check PC/AV source selecting stage and processing stage;
Check IC5201<PC1/PC2_SW> and IC301<Scaler> and peripheral circuit.
No picture with all of
computer input sources
Yes
Yes
Yes
No
No
No
Check following steps.
Check AV source selecting and decoding stage;
S-Video source
Check S-video signal (Y/C).
S-CHROMA signal is applied to pin 265 of IC301<Scaler>, and S-Y signal is
applied on pin 264 of IC301.
S_SW signal (S-VIDEO:L) is input to pin 267 of IC301<Scaler>.
Component video source
Check component signal (Y/Cr,Pr/Cb,Pb).
The component signals are applied to pins 256, 78, 172 of IC301 <Scaler>.
Composite video source
Check composite video signal (Video).
The composite video signal is applied to pins 262 of IC301 <Scaler>.
No picture with video
input sources
Check PC1/PC2-switching stage;
Check IC5201<PC1/PC2-SW> and peripheral circuit.
PC1/PC2_SW signal (PC2: H) is output from pin 348 of IC301<Scaler> and
applied to pin 26 of IC5201.
PC1:L, PC2:H
No pic ture with PC1
[Analog] input source only
No
Yes
Troubleshooting
Содержание XGA ULTRA SHORT-THROW PLC-XL51
Страница 86: ... 86 IC Block Diagrams BA7078 Sync Separator IC5301 AN5870 Signal Switch IC5201 ...
Страница 87: ... 87 FA5502 P F Control IC601 HIN202EIB RS 232C Driver IC3801 IC Block disgrams ...
Страница 88: ... M62334 DAC For Fan Control IC3501 PW190 Scaler IC301 88 IC Block disgrams ...
Страница 89: ... NJW1141 Audio Control IC5001 89 IC Block disgrams STR Z2156 Power OSC IC651 ...
Страница 122: ... 122 Integrator Lens In L10 L03 Optical Parts Layout S7 S7 S7 S7 Relay Lens out ...
Страница 123: ... 123 L04 L14 L05 L12 L15 L16 L09 L13 L13 L08 L06 L07 Optical Parts Layout Optical unit inside ...
Страница 125: ... 125 ...
Страница 126: ...SM5110989 00 PLC XL51 Sep 2008 DC 300 Printed in Japan SANYO Electric Co Ltd ...
Страница 138: ...A12 SCH_KV7A NO DATA ...