Sharp TU-X1U Service Manual page 37

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
IC4504(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
4 – 10
TU-X1U
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 Monitor
Unit.
Check the line between SC4501 and
IC4504, and their peripheral circuits.