-43-
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Troubleshooting
Check AV source selecting stage;
Check S-video signal (Y/C) on the AV board.
S-C signal is applied to pin 43 of IC3101<Video Decoder>, and S-Y
signal is applied on pin 44 of IC3101.
S_SW signal (S-VIDEO:L) is input to pin 6 of IC2321<I/O>.
No picture with S-VIDEO
input source
Check AV source selecting stage;
Check component signal (Y/Cr,Pr/Cb,Pb) on the AV board.
The component signals are applied to pins 17, 18, 19 of IC3101<Video
Decoder>.
The component mode is selected by the PW_SCL2_5 and
PW_SDA2_5 signal applied to pins 13 and 14 of IC3101.
No picture with
Component input source
Check AV source selecting stage;
Check composite video signal (Video) on the AV board.
Check IC2101<Y/C Separation> and IC3101<Video Decoder> and
peripheral circuit.
VIDEO_CR, VIDEO_CB, VIDEO_Y, AV_HSYNC and AV_VSYNC sig-
nals are output from pin 23, 22,21, 9 and 4 of IC3101.
COMPO5 signal (PC: H) is output from pin 14 of IC2323<D/A> and
applied to pin 26 of IC5201 through IC5371<Buffer IC>.
No picture with video
input source
No
Yes
Yes
Yes
No
Summary of Contents for PLC-XU50
Page 51: ... 51 IC Block Diagrams AD8075 Selector IC201 AN7513 Audio Output IC5601 ...
Page 52: ... 52 BA7078 Sync Separator IC5341 IC Block Diagrams AN5870 RGB SYNC SW IC1201 IC5201 ...
Page 54: ... 54 FA5502 P F Control IC621 IC Block Diagrams CXD3536 LCD Driver IC401 ...
Page 55: ... 55 IC Block Diagrams M62392 M62393 D A IC6271 IC281 ML60851 USB Driver IC9801 ...
Page 56: ... 56 STR Z2156 Power Switching Control IC631 TB1274 Video Decoder IC3101 IC Block Diagrams ...
Page 57: ... 57 IC Block Diagrams TC90A69F Y C Separator IC2101 ...
Page 86: ...MW3 XU5000 MT3 XU5500 86 S5 S5 S5 L9 Projection Mechanical Parts List ...
Page 89: ...MW3 XU5000 MT3 XU5500 89 ...
Page 90: ... MT3A Sep 2003 BB 400 Printed in Japan SANYO Electric Co Ltd ...
