Sharp LC-32A28L Service Manual page 41

Does not the picture of the HDMI signal input to Input6(HDMI2) go out?
MINI AV_UNIT:
Is the HOT_PLUG detection function of pin (19) of a HDMI terminal
(CN502) normal?
Is TMDS signal input into pin (18, 17)/RX2±, (16, 15)/RX1±, (14,
13)/RX0±, (12, 11)/RXC± of IC U409?
Refer to "The picture doesn't appear in all modes."
Does not the picture of the PC IN(ANALOG) video signal input to VGA(15pin-D-SUB terminal) go out?
TERMINAL_UNIT:
Is R/G/B/H/V signal sent to pin (1)/R, (2)/G, (3)/B, (14)/H, (13)/V of
VGA (CN107)?
MAIN_UNIT:
Is R/G/B/H/V signal sent to pin (52)/R, (50)/G, (48)/B, (47)/H, (46)/V
of IC U401?
Refer to "The picture doesn't appear in all modes."
Does not the picture of the component video signal input to Component go out?
TERMINAL_UNIT:
Is Component Y/Pb/Pr signal sent to pin (2)/Y, (4)/Pb, (6)/Pr of
AV1(CN103) ?
Is Component Y/Pb/Pr signal sent to pin (2)/Y, (4)/Pb, (6)/Pr of
AV1(CN104) ?
MAIN_UNIT:
Is Component Y/Pb/Pr signal sent to pin (54)/Y, (56)/Pb, (57)/Pr of
IC U401?
Is Component Y/Pb/Pr signal sent to pin (59)/Y, (61)/Pb, (62)/Pr of
IC U401?
Refer to "The picture doesn't appear in all modes."
<External input HDMI2>No picture on the display (10)
↓
↓
YES
↓YES
<External input VGA>No picture on the display (12)
↓
↓
↓YES
↓YES
<External input Input2&3(Component)>No picture on the display (13)
↓
↓
↓YES
↓YES
2008-03-14
NO
Check the line between pin (41) of IC U409 and CN502.
Check the connection and setup with the external HDMI devices.
NO Check the line between IC U409 and CN502.
NO
Check the setting of an external input device that connects of
CN107.
NO
Check the line between IC U401 and CN107.
NO
Check the setting of an external input device that connects of
CN103.
NO Check the setting of an external input device that connects of
CN104.
NO
Check the line between IC U401 and CN103.
NO
Check the line between IC U401 and CN104.
41
LC-32A28L, LC-42A48L
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