Sharp LC-19S7E-BK User Manual

LC-19S7E-BK LC-26S7E-BK LC-32S7E-BK
42
No picture on the display (1)
↓
The picture doesn't appear in all modes.
MAIN UNIT: ↓
↓NO
YES
↓YES
PANEL_UNIT:
↓YES
↓YES
No picture on the display (2)
↓
Does not the picture come out when VHF/UHF is received?
TERMINAL UNIT: ↓
MAIN_UNIT: ↓YES
↓YES
Is LCD controller's control signal normal?
Is the above-mentioned LVDS signals output to connector
NO
Check the line between IC U4201 and CN7503.
NO
Control signals BRIGHT_ADJ, INVERTER_ON_OFF,
PANEL_PWR, and it peels off and whether normality is checked.
Check the panel module.
Similarly, is the LVDS signal input to connector of the panel
module?
NO
Wire harness is checked.
Is LVDS signal output from 1st_channel and 2nd_channel of IC U4201 in each mode?
(RXO0+/RXO0-),( RXO1+/RXO1-),( RXO2+/RXO2-),( RXO3+/RXO3-),( RXOC+/RXOC-)
Check IC U4201 and its peripheral control circuits.
Is picture signal input from pin (16) of TUNER (TU1101) to pin
35(CVBS0) of IC U4201?
Is TUNER_CVBS signal output from pin (16) of TUNER (TU1101)?
NO
Check whether I2C is normally accessed between TU1101 and
IC U4201.
NO
Check the line between IC U4201and TU1101.
Refer to “The picture doesn't appear in all modes.”

Sharp LC-19S7E-BK Specifications

General

Brand	Sharp
Model	LC-19S7E-BK
Category	LCD TV
Language	English