LC-32XL8E/S/RU, LC-37XL8E/S/RU
4 – 16
<When EXT4 is used for external input> No picture on the display (9)
Does not the picture of the HDMI signal input to EXT4 go out?
MINI AV_UNIT:
Is the HDMI detection function output from pin (19) of the HDMI
terminal (SC1503) normal?
NO
Check between SC1503 and IC1507 (HDMI_SW) of pin (56).
(IC1508, etc.)
YES
Is EDID data pin (6)/SCL, pin (5)/SDA of IC1505 (EEPROM)
accessed, and is it read from pin (15), (16) of a HDMI terminal
(SC1503)?
NO
Is access possible in the re-writing or exchange of EDID data of
IC1505?
YES
NO
Check the circumference circuit of SC1503, IC1505 and IC1507.
Is TMDS signal input into pin (59,58)/TMDS3_CLK , (62, 61)/
TMDS3_D0
±
, (65, 64)/TMDS3_D1
±
, (68, 67)/TMDS3_D2
±
of
IC1507 from SC1503?
NO
Check the line between SC1503 and IC1507.
YES
Is each signal output from pin (10,11)/TMDS_CLK_P/N, (7,8)/
TMDS_D0_P/N, (4,5)/TMDS_D1_P/N, (1,2)/TMDS_D2_P/N,
(77,78)/SDA_SINK/SCL_SINK, (79)/DDC5VOR_A of IC1507?
NO
Is the control signal named IC1507 and IC9101 (CPLD) normal?
(HDMI_SW_INT, HDMI_RST, etc.)
YES
Is each signal of IC3301 (VIDEO_PROCESSOR) pin (L1, L2)/TMDS_CLK_P/N, (M1, M2)/TMDS_D0_P/N, (N1, N2)/TMDS_D1_P/N, (P1, P2)/
TMDS_D2_P/N, (T11, U11)/SDA_SINK/SCL_SINK, (T10)/DDC5VOR_A input?
YES
NO
Refer to “The picture doesn't appear in all modes”.
Check the line between SC1101 and IC3301.
