Read Sharp TU-X1E (serv.man7) Service Manual online
TU-X1E/RU
6 – 4
<When HDMI is input>
No sound (2)-1
(The Monitor side is to be normal. )
No sound is heard from the
external input device via
EXT5 (HDMI-1).
external input device via
EXT5 (HDMI-1).
No sound is heard from the
external input device via
EXT6 (HDMI-2).
external input device via
EXT6 (HDMI-2).
Is the differential input
signal (TMDS2[D0:D2]
signal (TMDS2[D0:D2]
r)
inputted to pins (61) thru
(68) of IC4109 (TMDS-SW).
(68) of IC4109 (TMDS-SW).
Is the IC4106 (E2PROM)
data accessed by I2C and
read via pins (5) and (6) ?
data accessed by I2C and
read via pins (5) and (6) ?
Is the differential input
signal (TMDS1[D0:D2]
signal (TMDS1[D0:D2]
r)
inputted to pins (41) thru
(48) of IC4109 (TMDS-SW).
(48) of IC4109 (TMDS-SW).
Is the IC4105 (E2PROM)
data accessed by I2C and
read via pins (5) and (6)?
data accessed by I2C and
read via pins (5) and (6)?
Check the HDMI connection
and others. Or see if the
IC4106 (E2PROM)'s EDID
data is accessed by I2C in
rewriting the data.
and others. Or see if the
IC4106 (E2PROM)'s EDID
data is accessed by I2C in
rewriting the data.
NO
NO
Check the HDMI connection
and others. Or see if the
IC4105 (E2PROM)'s EDID
data is accessed by I2C
inrewriting the data.
and others. Or see if the
IC4105 (E2PROM)'s EDID
data is accessed by I2C
inrewriting the data.
YES
YES
YES
YES
NO
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
Check IC1302 (S-DSP) and its
peripheral circuits.
peripheral circuits.
NO
(
MAIN-UNIT)
(
MAIN-UNIT)
(
TERMINAL-UNIT)
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)?
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