Sony KLV-40WE5 Service Manual ▷ View online
– 12 –
KLV-40WE5
RM-GA015
3-1-2. Flowchart B
Only
Speaker
out?
HDMI
Problem?
Analog
Channel
Problem?
Digital
Channel
Problem
(Not used
for these
models)
No
No
No
BA Board
Set correctly or
reset by menu
Check Speaker
BA board
No
Yes
Yes
UI of Audio
Setting correct?
Volume, TV
Speaker
BA Board
No
BA Board
BA Board
3-1-3. Flowchart C
Video
Problem
All inputs
have
problem?
HDMI
Problem?
Analog
Channel
Problem?
Digital
Channel
Problem
(Not used
for these
models)
No
No
No
No
Check LVDS harness
connection
Or BA board or Panel
No
Yes
Yes
Backlight
turn on?
BA Board
BA Board
BA Board
BA Board
BA Board
– 13 –
KLV-40WE5
RM-GA015
3-1-4. Flowchart D
3-2. Board Replacement Order
3-2-1. In case of most doubtful part is Power Board.
No
INV PWR BOARD
IPB-4001//Q(IP3)
Replace (OK)
Finish
7 or 13
blinking
BA
Replace
Panel
Replace
(OK)
No
Panel Problem
Is it LED(STBY)
indicator turn on
or blinked?
No
Yes
Count blink and replace board to
obey with 2-6 triage chart.
Refer Section 3.2 Board
Replacement Order.
Backlight
turn on?
Yes
Is it correct
Connection at
LVDS Wire
harness?
Yes
Panel problem
Check T-Con and other parts
No
Re-connect LVDS wire at T-Con
and at BA board.
Check conntacted pin!
Is it broken?
– 14 –
KLV-40WE5
RM-GA015
3-2-2. In case of most doubtful part is BA Board.
Replace
Panel
Finish
2 or 5 or 7
blinking
BA
No
Replace (OK)
Replace
(OK)
INV PWR BOARD
IPB-4001//Q(IP3)
No
3-2-3. In case of most doubtful part is Panel Module, T-Con Board.
BA Board
Finish
6 or 12 or 13 or
14 blinking
Panel
module
No
Replace
(OK)
Replace
(OK)
INV PWR BOARD
IPB-4001//Q(IP3)
No
– 15 –
KLV-40WE5
RM-GA015
3-2-4. In case of most doubtful part is BA Board.
INV PWR Board
IPB-4001//Q (IP3)
Finish
10
blinking
BA
board
Replace (OK)
No
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