Sharp TU-X1U Service Manual page 39

YES
Are the LVDS signal inputs at the LVDS 1st channel and 2nd channel of IC4601 (FPGA)?
LVDS_TX_0_DATA0_P/N (T3/R3), LVDS_TX_0_DATA1_P/N (T5/T4),
LVDS_TX_0_DATA2_P/N (R7/T7), LVDS_TX_0_DATA3_P/N (R11/P11),
LVDS_TX_0_DATA4_P/N (T13/R13), LVDS_TX_0_CLK_P/N (P9/N9),
LVDS_TX_1_DATA0_P/N (B14/A14), LVDS_TX_1_DATA1_P/N (B13/A13),
LVDS_TX_1_DATA2_P/N (A9/A10), LVDS_TX_1_DATA3_P/N (A4/A5),
LVDS_TX_1_DATA4_P/N (C3/B3), LVDS_TX_1_CLK_P/N (A8/B8).
YES
Are the Parallel Video Signal inputs at the pins of IC4504 (HDMI_Tx)?
HDMITX_G9-0 pin (71/72/73/74/75/77/78/79/80/81),
HDMITX_B9-0 pin (84/85/86/90/91/92/93/94/95/96),
HDMITX_R9-0 pin (56/57/58/59/60/61/62/63/67/68),
HDMITX_CLK pin (88), HDMITX_DE pin (1), HDMITX_HD pin (2), HDMITX_VD pin (3)
YES
Does the HOT PLUG detection function?
Is the DDC5V signal output at the pin (18) of SC4501 (HDMI_OUTPUT)?
YES
Does the HPD signal come from pin (19) of SC4501 (HDMI_OUTPUT) to pin (51) of IC450
4(HDMI_Tx)?
YES
Are there the TMDS signal outputs at pins (12/10)(CLK-/+), (9/7)(D0-/+), (6/4)(D1-/+), (3/
1)(D2-/+), all of SC4501 (HDMI_OUTPUT)?
YES
Check the HDMI cable and Monitor Unit.
NO
NO
NO
NO
NO
4 – 12
TU-X1U
Check the line between IC8001
and IC4601, and their peripheral
circuits.
Check the line between IC4601
and IC4504, and their peripheral
circuits.
Check the line between SC4501
and IC4503, and their peripheral
circuits.
Check the line between SC4501
and IC4504, and their peripheral
circuits.
Check the HDMI cable and Moni-
tor Unit.
Check the line between SC4501
and IC4504, and their peripheral
circuits.