Sharp LC-32SV40U Service Manual page 52

Does not the picture display when USB cable plugged into USB port?
Is USB stick video format correct?
YES
Main UNIT:
Is the USB +5V sent to pin (1) of CN1104?
YES
Is the USB con (CN1104) signal properly sent to
pin (233) (USB_DM0) and pin (234) (USB_DP0) of
IC U2102?
YES
Refer to "The picture doesn't appear in all modes."
<External input USB>No picture on the display (6)
NO
NO
NO
51
Change to correct .jpg or .jpeg or .png or .bmp
.
format
Check the fuse F1101 and the external input
device.
Check the line between CN1104 and IC U2102.