DOWNLOAD Sony KLV-24EX430 Service Manual ↓ Size: 3.6 MB | Pages: 88 in PDF or view online for FREE

Model
KLV-24EX430
Pages
88
Size
3.6 MB
Type
PDF
Document
Service Manual
Brand
Device
TV
File
klv-24ex430.pdf
Date
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Sony KLV-24EX430 Service Manual ▷ View online

KLV-24 EX430
RM-GA022
Troubleshooting
3-2. No Power
No Power
Take out AC plug 
No
p g
and test AC supply. 
Within ±10% of adaptor 
rated input voltage?
AC source
No
Yes
Take out adaptor 
and test at adaptor 
output is it 18V – 19.5V? 
(Refer Figure 1)
No
Yes
Adaptor
B* board
Figure 1: How to test DC voltage at 
Plug in adaptor and check
DC voltage at JL6023
Is it 19.5V?
No
•See DDCON 
Sheet
adaptor output
Yes
Segment
Size
B*
Board
13
Board 
Type
P-2L
24
B2FN
KLV-24 EX430
RM-GA022
Troubleshooting
3-2-1. *DDcon
Start
DDCON
Check voltage at JL6012 
is it 3.3V? 
Yes
OK
Check F6000
NG
No
Fuse
Check voltage at JL6010 
is it 1.2V? 
No
Yes
Change B* 
board
Check voltage at JL6011 
is it 1.5V? 
Check voltage at JL6020 
is it 5V? 
No
Yes
No
Change B* 
board
Change 
B*board
Check voltage at JL6013 
is it 5V? 
No
Yes
After checking, take note of
NG condition & change B board
Change B* 
board
Segment
Size
B*
14
Yes
g
Board 
Type
P-2L
24
B2FN
KLV-24 EX430
RM-GA022
Troubleshooting
3-3. Standby Led Blinking
3 3 1 2 ti
L d bli ki
3-3-1.   2-times Led blinking 
2 times Blinking
Check DC voltage at
JL6023
Is it 18V 19 5V?
Yes
Change 
B*board
Is it 18V - 19.5V?
No
Take out adaptor 
Yes
and test at adaptor 
output is it 18V – 19.5V? 
(Refer Figure 2)
Change 
B*board
No
Yes
Change 
adaptor
Figure 2: How to test DC voltage 
at adaptor output
Segment
Size
B*
15
g
Board 
Type
P-2L
24
B2FN
KLV-24 EX430
RM-GA022
Troubleshooting
3-3. Standby Led Blinking
3-3-2.   3-times Led blinking 
Remove
Speaker Connector
No 3x blinking
Check Speaker harness
Speaker impedance 
≠ 7~8 Ω
Change
START
3x blinking
Speaker Connector 
at CN4000 & perform 
AC OFF - ON
3x blinking
Check Speaker harness 
and Speaker impedance
No connectivity 
for speaker harness
Change 
Speaker 
Harness
Change 
Speaker
Ch
k
ti it
No connectivity 
of F4000
Harness
Connect back 
Speaker Connector to CN4000 
& perform AC OFF - ON
3x blinking
No 3x blinking
F4000 broken
Check connectivity 
at F4000.
3x blinking
& F4000 OK
Audio IC problem
IC4002 d
No 3x blinking
IC4002 damage
Change B* 
board
Segment
Size
B*
16
DONE
g
Board 
Type
P-2L
24
B2FN
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