Sony KLV-32EX330 / KLV-40EX430 Service Manual ▷ View online
KLV-32EX330/40EX430(CH)
61
YES
No picture
NO
Change
phone or
source
Change MHL
cable
Q3605 NG
NO
NG
YES
OK
Phone or source supported
MHL (phone spec and OS
support etc)
Use supported MHL cable
Check D2_S voltage =
3.0Vdc
Check IC3603 pin 3 voltage
= 5Vdc
Check VBUS voltage =
5Vdc
NG
OK
Check MHL_CBL_DET voltage
(CL5016) = 5Vdc
IC3602 NG or
IC5000 NG
OK
Change B* Board
IC3603 NG
YES
Check Pin 13 IC3602
voltage = 5Vdc
IC3602 NG
NO
NO
(*)
Size
B* Board Type
32”
BWM
40’’
BFM
TROUBLE SHOOTING
2) MHL No picture
KLV-32EX330/40EX430(CH)
62
No charging
IC3603 NG
IC3602 NG
YES
YES
NO
Check VBUS voltage =
5Vdc
Check IC3603 pin3 voltage
= 5Vdc
Check Pin 13 IC3602
voltage = 5Vdc
Change B* Board
YES
NO
NO
(*)
Size
B* Board Type
32”
BWM
40’’
BFM
TROUBLE SHOOTING
3) MHL Cannot charging
KLV-32EX330/40EX430(CH)
63
Analog RF input no picture
Change RF cable and antenna
Change B* board
Reconnect LVDS cable
or change new LVDS
cable
Check RF source cable
and antenna, OK?
Check R1030 =
+3.3V?
Check JL1003 =
+3.3V?
Raster, OK?
Tuning, OK?
Check LVDS
harness
connection between
B* board, OK?
Change B* board
Change B* board
OK
OK
OK
OK
OK
NG
NG
NG
NG
NG
NG
OK
(*)
Size
B* Board Type
32”
BWM
40’’
BFM
TROUBLE SHOOTING
3-9. TUNER TROUBLESHOOTING FLOW
KLV-32EX330/40EX430(CH)
64
TV cannot be controlled
by remote commander
OK
NG
Green LED light
at Power LED indicator
Confirm Harness connection
OK on B*M Board and HT* Board
Change Harness
Harness NG
NG
NG
Green LED blinks at Power indicator
when using commander
near sensor’s window
OK
NG
Harness loose connection
Change B* board
NG
Change HT*board
HT*board NG
Software NG
OK
OK
OK
(*)
Size
B* Board
Type
HT* Board
Type
32”
BWM HTW
40’’
BFM HTF
TROUBLE SHOOTING
3-10. IR TROUBLESHOOTING FLOW
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