Hitachi UT47X902 Service Manual page 32

D8mw chassis
Hide thumbs Also See for UT47X902:
Table of Contents

Advertisement

...TROUBLESHOOTING FLOWCHARTS (continued)...
A : Picture Troubleshooting
No picture, no color or dark
Check the picture menu.
Are there problems?
Are the voltage of
pin 7 and 9 (+5V) of PV01
(Main PWB) normal?
Yes
RGB input
Are there
signals(R,G,B,H,V) at
CE12-CE14,RE49 and
RE50 of Main PWB?
Are there
signals(R,G,B,H,V) at
CE06-CE08 and
IW01(pin1, 13) of Main
PWB?
It is trouble of EFFC connector,
Terminal PWB, or PW01 of
Main PWB.
Yes
No
No
Yes
It is trouble of IA01
of Main PWB.
Please change.
No
Yes
It is trouble of QE01-QE03
or IE01of Main PWB.
Please change.
No
It is trouble of Q001, GH01
or DH03 of Main PWB.
Please change.
Adjust the picture
menu.
It is trouble of IR/PW-SW PWB.
Please check EISP connector
Yes
No
It is trouble of IH01
of Main PWB.
Please change.
No
31
HDMI input
Are there
signals(R(8bit),G(8bit),
B(8bit),H,V,DE,CLK) at
RH33,RH35,RH37 and
RH39 of Main PWB?
No
Are there signals(TMDS)
at RH60-67 of Main PWB?
Yes
Is there voltage at
pin 18 (+5V) of JH01 (Main
PWB) and is there
voltage(over +2.4V) at
pin19 of JH01?
Yes
It is trouble of IH02
of Main PWB.
Please change.
D8MW

Advertisement

Table of Contents
loading

This manual is also suitable for:

Ut47v702

Table of Contents