Sharp LC-52LE700E Service Manual

LC-32/40/46LE700E/RU/S,LU700E/S,LX700E/RU,LC-52LE700E/RU/S
6 – 12
[External input EXT1,EXT2] No picture on the display (4)
Does not the picture of the CVBS signal input to EXT1 go out?
Does not the picture of the CVBS signal input to EXT2 go out?
Is CVBS signal sent to pin(20) of EXT1 (SC503)? NO Check the setting of an external input device that connects with
EXT1.
Is CVBS signal sent to pin(20) of EXT2 (SC502)? NO Check the setting of an external input device that connects with
EXT2.
YES
Is CVBS signal from EXT1(SC503) sent to pin(AG29/
SC1_CVBS_Y) of IC3302
(Digital AV decode & Main CPU)
NO Check the line between SC503 and IC3302.
Is CVBS signal from EXT2(SC502) sent to pin(AH30/
SC2_CVBS_Y) of IC3302
(Digital AV decode & Main CPU)?
NO Check the line between SC502 and IC3302.
YES
Refer to “The picture doesn't appear in all modes.”
[External input EXT1,EXT2] No picture on the display (5)
Does not the picture of the Y/C video signal input to EXT1 go out?
Does not the picture of the Y/C video signal input to EXT2 go out?
Is Y/C video signal sent to pins(20)/Y and (15)/C of
EXT1(SC503)?
NO Check the setting of an external input device that connects with
EXT1.
Is Y/C video signal sent to pins(20)/Y and (15)/C of
EXT2(SC502)?
NO Check the setting of an external input device that connects with
EXT2.
YES
Is Y/C signal from EXT1(SC503) sent to pins (AG29/
SC1_CVBS_Y) and (AG28/SC1_C1) of IC3302
(Digital AV decode & Main CPU)
NO Check the line between SC503 and IC3302.
Is Y/C signal from EXT1(SC503) sent to pins (AH30/
SC2_CVBS_Y) and (AH29/SC2_C2) of IC3302
(Digital AV decode & Main CPU)
NO Check the line between SC502 and IC3302.
YES
Refer to “The picture doesn't appear in all modes.”
[External input EXT1] No picture on the display (6)
Does not the picture of the R/G/B signal input to EXT1 go out?
Is RGB1 signal sent to pins (15)/R1, (11)/G1 and (7)/B1 of
EXT1(SC503)?
NO Check the setting of an external input device that connects with
EXT1.
YES
Is RGB1 signal from EXT1(SC503) sent to pins (AH22/RED1),
(AJ22/GREEN_1) and (AJ21/BLUE_1) of IC3302
(Digital AV decode & Main CPU)
NO Check the line between SC503 and IC3302.
YES
Refer to “The picture doesn't appear in all modes.”

Sharp LC-52LE700E Specifications

General

Display diagonal	52 \
Display brightness	450 cd/m²
Display technology	LCD
Native aspect ratio	16:9
Viewable size diagonal	1320 mm
Contrast ratio (dynamic)	3000000:1
Contrast ratio (typical)	4000:1
Viewing angle, horizontal	176 °
Power requirements	AC 220-240 V / 50 Hz
RS-232 ports	1
HDMI ports quantity	4
SCART ports quantity	2
Component video (YPbPr/YCbCr) in	3
Product color	Black
Tuner type	Analog & digital
Analog signal format system	NTSC

Weight and Dimensions

Depth (without stand)	95 mm
Width (without stand)	1238 mm
Height (without stand)	765 mm
Weight (without stand)	27600 g