Sony KDL-42W800A Service Manual page 120

Troubleshooting
3-5. No Picture
3-5-2. No Picture HOTEL_B2B (BA2-S HOTEL_B2B)
Note:
(AYU2) – IC9000
(Brownie)- IC9001
No Picture B2B No Picture B2B
PC
No Picture No Picture
NG
Check CN3102
Check if input OSD
Connection,
is GREY OUT
PC_CON_DET
OK
NG
Detailed check
Check wave between
R3149/R3150 CN3102 pin13,
and IC9001 pin 14 path
OK OK
Check wave between NG Detailed check
C3126/C3127/C3128 CN3102 signal path
Pin 1, pin 2, pin 3
and IC9001
OK
NG NG
Confirm HDMI HDMI EQ [IC5009]
Problem
input working
NG
Confirm other analog
Input working
OK
Brownie [IC9001]
Problem
Detailed TMDS path Detailed TMDS path
check between
IC9001 and IC5009
NG
Check signal
between IC9001 and between IC9001 and
IC5009 [RB5008]
OK B* Board Type
Size
OTHERS JAPAN
Ayu2 [IC9000]
42 BA2S
Problem
47 BA2S
55 BA2S
W800A/W801A/W802A/W804A/W805A/W806A/W807A/W808A/W809A
G* Board Type
CHINA ASIA AMERICA EUROPE JAPAN
BA2W GL2S GL2S GL2E(CH) GL2E(ID)
BA2W GL2S GL2S GL2E(CH) GL2E(ID)
BA2W GL2E(CH) GL2E(ID) GL2E(CH) GL2E(ID) GL2E(ID)
RB1G CHASSIS
GL2S
GL2S
120