Sony KDL-42W800A Service Manual page 188

Troubleshooting
3-5. No Picture
3-5-14. NO PICTURE: MHL (BA2 & BM (not applicable for this model))
No Picture
Check 68pin
of IC5009
Low
Low
Check DSCL_4 Check DSCL 4
High
Change
MHL cable
Check +5.0V_MHL Check +5 0V MHL
and STBY_+3.3V
High
Check Source equipment
by Reference TV set
(For example, Samsung TV(UN46ES7000)
, Toshiba TV(42WL863))
Check RB5019,
D5001 and D5002
NG
OK NG
Replace
NG part
Check the settings of
Source equipment
Size
Check CBUS_HPD4 line
and TMDS(D0 /D0 ) lines and TMDS(D0+/D0-) lines
All lines
by the IC5009 side
are OK
CBUS_HPD4
line is NG
OK OK
or VA-1836
Check HDMI picture
in this input
NG
OK
Check "NO PICTURE
– HDMI" flow
Inform the designer
of it
W800A/W801A/W802A/W804A/W805A/W806A/W807A/W808A/W809A
B* Board Type G* Board Type
OTHERS JAPAN CHINA ASIA
42 BA2S BA2W GL2S GL2S
47 47 BA2S BA2S BA2W BA2W GL2S GL2S GL2S GL2S
55 BA2S BA2W GL2E(CH) GL2E(ID) GL2E(CH) GL2E(ID) GL2E(ID)
Only TMDS lines
are NG
Replace
IC5009
RB1G CHASSIS
AMERICA EUROPE JAPAN
GL2E(CH) GL2E(ID) GL2S
GL2E(CH) GL2E(ID) GL2E(CH) GL2E(ID) GL2S GL2S
Replace
RB5020 RB5020
188