Sharp LC-19S7E-BK, Руководство по обслуживанию

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LC-19S7E-BK LC-26S7E-BK LC-32S7E-BK
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<External input HDMI2>No picture on the display (7)
↓
Does not the picture of the HDMI signal input to HDMI2 go out?
MINI AV_UNIT:
↓
↓
YES
↓ NO
YES
↓ YES
<External input VGA>No picture on the display (8)
↓
Does not the picture of the PC IN(ANALOG) video signal input to VGA(15pin-D-SUB terminal) go out?
TERMINAL_UNIT:
↓
MAIN_UNIT:
↓ YES
↓ YES
Is the HOT_PLUG detection function of pin (19) of a HDMI terminal
(CN1601) normal?
NO
Check the line between pin 35 of IC U1503 and CN1601.
Refer to “ The picture doesn't appear in all modes. ”
Check the connection and setup with the external HDMI devices.
Are EDID data pin (6)(SCL) of IC U1602 (EEPROM), pin (5)(SDA)
accessed, and is it read from pin (15), (16) of a HDMI
terminal(CN1601)? NO Is access possible in the re-writing or exchange of EDID data of
IC U1602?
Check CN1601, IC U1602 and peripheral circuits.
Is TMDS signal input into pin(RX_A2+, RX_A2-)/D2
±
_1,(RX_A1+,
RX_A1-)/D1
±
_1, (RX_A0+, RX_A0-)/D0
±
_1, (RX_AC+, RX_AC-
)/CLK
±
_1 of IC U1503?
Check the line between IC U1503 and CN1601.
NO
Is R/G/B/H/V signal sent to pin (1)/R, (2)/G, (3)/B, (14)/H, (13)/V of
VGA (CN1401)?
NO
Check the setting of an external input device that connects of
CN1401.
Refer to “ The picture doesn't appear in all modes. ”
Is R/G/B/H/V signal sent to pin (RIN1)/R, (GIN1)/G, (BIN1)/B,
(HSYNC1)/H, (VSYNC1)/V of IC U4201?
NO
Check the line between IC U4201and CN1401.