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4.2 Check the HDMI driver.
Check the soldering of QT01, QT07,
QT08 and LT01-LT04.
Are the HDP+1.8V and HDP+3.3V
voltage lines of QT01 normal?
Check the input voltage of QT07 and
QT08.
Replace QT05 or QW81.
Check the soldering of JW02 and JK02.
Refer to “1. POWER SUPPL
PWB (P801)”.
Check the soldering of QT01, RT01-RT03
and RT14-RT19.
Is the reset signal (VRST_4) of QT01 H?
NG
OK
NG
OK
NG
OK
NG
OK
NG
OK
OK
OKNG
OK
OK
OK
Check the soldering RT27-RT29, QT02
and QT03 (25pin).
Is the IIC waveform of QT01 normal?
SDA1 and SCL1
Check the soldering of QT01, RT30 and
RT31.
Is the picture of the television inputted by
HDMI normal?
Finish
(Of course, there needs to be no problem
in video and audio output signal. And the
audio also checks HD_SPDIF.)
Replace QT01.
Check the soldering of QT04, QT05, LT05
and circumference components.
Check the soldering of JT01, LT06-LT09
and RT17-RT24.
Are input digital signals normal?
HDB(0-9), HDG(0-9), HDR(0-9), HDDE,
HDHSYNC, HDVSYNC and HDVCLK
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