Read Sharp TU-X1E (serv.man7) Service Manual online
TU-X1E/RU
6 – 5
No sound is heard from the
external input device via
EXT7 (HDMI-3).
external input device via
EXT7 (HDMI-3).
Is the differential input
signal(TMDS3[D0:D2]
signal(TMDS3[D0:D2]
r)
inputted to pins (41) thru
(48) of IC5301 (TMDS-SW).
(48) of IC5301 (TMDS-SW).
Is the IC5304 (E2PROM)
data accessed by I2C and
read via pins (5) and (6)?
data accessed by I2C and
read via pins (5) and (6)?
NO
Check the HDMI connection
and others. Or see if the
IC5304 (E2PROM)'s EDID
data is accessed by I2C in
rewriting the data.
and others. Or see if the
IC5304 (E2PROM)'s EDID
data is accessed by I2C in
rewriting the data.
YES
YES
YES
NO
Is the HDMI_I2S (HDMI_SD0/CLK)
signal outputted from pins (81)
thru (89) of IC4203 (HDMI-Rx)?
signal outputted from pins (81)
thru (89) of IC4203 (HDMI-Rx)?
Is the HDMI_I2S (HDMI_SDO/CLK)
signal inputted from pins (78) and
(76) of IC1302 (S-DSP)?
signal inputted from pins (78) and
(76) of IC1302 (S-DSP)?
Is the differential output signal
(HDMITX_[0:C]
(HDMITX_[0:C]
r) outputted to
HDMI output terminal (SC4801)?
Check the HDMI-Cable and the
Monitor Audio Troubleshooting.
Monitor Audio Troubleshooting.
Check the input pins (9) and (5) of
IC4804 (HDMI_Tr) and its power,
SDA signal and soldering.
IC4804 (HDMI_Tr) and its power,
SDA signal and soldering.
Check pins (13) and (15) of MA
connector (SC2404) as well as pins
(39) and (37) of SC601, and their
peripheral circuits.
connector (SC2404) as well as pins
(39) and (37) of SC601, and their
peripheral circuits.
Check the IC4203 (HDMI-Rx) power,
SDA2 signal and soldering.
SDA2 signal and soldering.
NO
NO
NO
YES
YES
Is the HDMI_I2S(I2SO_DATA/
CLK) signal outputted from pin
(58) and (57) of IC1302 (S-DSP)?
CLK) signal outputted from pin
(58) and (57) of IC1302 (S-DSP)?
Check IC1302 (S-DSP) and its
peripheral circuits.
peripheral circuits.
NO
(
MAIN-UNIT)
(
MAIN-UNIT)
(
TERMINAL-UNIT)
<When HDMI is input>
No sound (2)-2
(The Monitor side is to be normal. )
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