Read Sharp TU-X1E (serv.man7) Service Manual online
TU-X1E/RU
6 – 12
No picture displayed via
EXT7 (HDMI-3) from an
external input device.
EXT7 (HDMI-3) from an
external input device.
Is the differential inputsignal
(TMDS3[D0:D2]
(TMDS3[D0:D2]
r)inputted
to pins (41) thru (48) of
IC5301 (TMDS-SW)?
IC5301 (TMDS-SW)?
Is the IC5304 (E2PROM)
data is accessed by I2C an
dread from pins (5) and (6)?
data is accessed by I2C an
dread from pins (5) and (6)?
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
NO
NO
<When HDMI is input>
No picture on the display (2)-2
(The Monitor side is to be normal. )
Are the HDMI R/G/B
signals (HDMI_R/G/B[0:9])
outputted from pins (108)
thru (14) of IC4203
(HDMI-Rx)?
signals (HDMI_R/G/B[0:9])
outputted from pins (108)
thru (14) of IC4203
(HDMI-Rx)?
Is the TMDS_[D0:D2]
r
signal outputted from pins
(33) thru (40) of IC4303
(HDMI-Tx)?
(33) thru (40) of IC4303
(HDMI-Tx)?
YES
Is the differential output
signal (HDMI TX_[0.C]
signal (HDMI TX_[0.C]
r)
outputted to the HDMI
output terminal (SC4801)?
output terminal (SC4801)?
Check the HDMI cable
and refer to the Monitor
VideoTroubleshooting.
and refer to the Monitor
VideoTroubleshooting.
Check the IC8101 (CPU),
IC4602 (FPGA) and
IC4804(HDMI_Tx) power,
SDAsignal, and soldering.
IC4602 (FPGA) and
IC4804(HDMI_Tx) power,
SDAsignal, and soldering.
Check the IC4303
(HDMI-Tx) power, SDA2
signal, and soldering.
(HDMI-Tx) power, SDA2
signal, and soldering.
Check the IC4203
(HDMI-Rx) power, SDA2
signal, and soldering.
(HDMI-Rx) power, SDA2
signal, and soldering.
NO
NO
NO
YES
YES
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