Sharp LC-42SV32B, Руководство по обслуживанию

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LC-42SV32B
36
<External input AV (Composite)>No picture on the display (5)
↓
Does not the picture of the composite video signal input to AV(Composite) go out?
TERMINAL UNIT:
↓
MAIN_UNIT:
↓ YES
↓ YES
<External input HDMI1 >No picture on the display (6)
↓
Does not the picture of the HDMI signal input to HDMI1 go out?
MINI AV_UNIT:
↓
↓ NO
YES
↓ YES
↓ YES
<External input HDM2 >No picture on the display (7)
↓
Does not the picture of the HDMI signal input to HDMI2 go out?
MINI AV_UNIT:
↓
↓ NO
YES
↓ YES
↓ YES
Is CVBS signal sent to pin (2) of AV (CN128) ?
NO
Check the setting of an external input device that connects of
CN128.
Refer to “ The picture doesn't appear in all modes. ”
Is CVBS signal sent to pin (A17) of IC U401?
NO
Check the line between IC U401 and CN128.
Is the HOT_PLUG detection function of pin (19) of a HDMI terminal
(CN502) normal?
NO
Check the line between pin (36) of IC U505 and CN502.
Refer to “ The picture doesn't appear in all modes. ”
Check the connection and setup with the external HDMI devices.
Is TMDS signal input into pin ((41,42)/( RR1X0), (44,45)/( RR1X1),
(47,48)/( RR1X2), (38,39)/( RR1XC)) of IC U501?
Check the line between IC U501 and CN502.
NO
Is TMDS signal output from pin ((1/2/4/5/7/8/10/11)/(M_RX1) of IC
U501?
Check IC U501 and peripheral circuits.
NO
Is the HOT_PLUG detection function of pin (19) of a HDMI terminal
(CN503) normal?
NO
Check the line between pin (16) of IC U505 and CN503.
Refer to “ The picture doesn't appear in all modes. ”
Check the connection and setup with the external HDMI devices.
Is TMDS signal input into pin ((21,22)/(RR0X0), (24,25)/(RR0X1),
(27,28)/(RR0X2), (18,19)/(RR0XC)) of IC U501?
Check the line between IC U501 and CN503.
NO
Is TMDS signal output from pin ((1/2/4/5/7/8/10/11)/(M_RX1) of IC
U501?
Check IC U501 and peripheral circuits.
NO