Sony KDL-32W700B Service Manual page 22

Troubleshooting
3-4-2. NO PICTURE: (All Model)
PANEL_VCC = +12V
No Picture
HE,HM (BAX-L): JL9132
Is blue picture
No PANEL_VCC
on display?
at JIG LAND
(Factory SW
on the B* Board
is booted)
・
Yes
No
G-Board or
BAXL
Adaptor NG
Board is OK.
Check:
Tuner –
No Picture
HDMI –
N Pi t No Picture
Ext. Video
Input -
No Picture
BL_ON (L or H): JL9105
BL_ON：H
Check
Yes Check
BL_ON at JIG LAND
on the B* Board
BL_ON：L
Symptom
Replace Harness
improvement
between G-Board/
LD Board LD-Board
to B-Board
NG
NG NG
Change
B-Board
Symptom
improvement improvement
BAXL Board NG
Replace
NG
LCD Panel
the LVDS FFC
(T-CON)
Harness
Symptom
improvement improvement
LVDS FFC
Harness
Replace G-Board/LD-Board to
B-Board Harness B Board Harness
Change G-Board
/ LD board
Note : Note :
-B* Board – BAXL Board
-G*Board- Not applicable
W700B/ W705B/ W706B/ W707B/ W708B/ W790B
W800B/ W805B/ W807B/ W808B/ W815B/ W817B/ W828B/ W829A
1
2
<BAXL- B SIDE>
Parts
Location/Parts
(1)
(JL9132
(PANEL_VCC)
(2)
JL9105
(BL_ON)
RB2G CHASSIS
W855B/ W857B
Detail
JL9132
(PANEL_VCC)
JL9105
(BL_ON)
22