DOWNLOAD Sony KLV-46W550A Service Manual ↓ Size: 4.85 MB | Pages: 45 in PDF or view online for FREE

Model
KLV-46W550A
Pages
45
Size
4.85 MB
Type
PDF
Document
Service Manual
Brand
Device
TV
File
klv-46w550a.pdf
Date
PREV: Sony KDL-32W5500 / KDL-40W5500 / KDL-46W5500 Service Manual

Sony KLV-46W550A Service Manual ▷ View online

– 8 –
KLV-32, 40, 46W550A
RM-GA015
Blinking times
Detection items
Countermeasure
2
Main power failure
Replace either/both
z
BT board
z
GT board (19”)
z
GPT board (26”/32”)
3
5V power failure
Replace BT board.
4
Audio failure
Replace either/board.
z
BT board
z
GT board (19”)
z
GPT board (26”/32”)
z
Speaker
z
Woofer
5
Back light failure
Replace either/board.
z
BT board
z
GT board (19”)
z
GPT board (26”/32”)
6
Internal temperature
Replace GT board (19”)/ GPT Board (26”/ 32”)
failure
7
SMIC error
Replace BT Board
2-6. STANDBY LED ERROR DISPLAY
2-5. Standby LED Error Display
Perform below countermeasures according to Standby LED blinking times.
Blinking times
Error
Countermeasure
2
DC_DET
Replace either/both
z
Power board
- G2CE-32”
- IP1-40”
- IP2-46”
5
DC_ALERT
Replace BA board.
6
BACKLIGHT
Replace either/both
z
 BA board
z
 Panel
7
INTERNAL TEMP
Replace either/both
z 
Power board
- G2CE-32”
- IP1-40”
- IP2-46”
z 
BA board
8
AUDIO
Replace either/all
z
Power board
- G2CE-32”
- IP1-40”
- IP2-46”
z
BA board
z
Speaker
10
DIGITAL FE/DE
Replace
z
 BA board
13
BALANCER
Replace
z
 Panel board
z
Power board
- G2CE-32”
- IP1-40”
- IP2-46”
14
T-CON
Replace
z
 Panel
z
 BA Panel
Note: Each of the above blinking repeats 2 seconds.
– 9 –
KLV-32, 40, 46W550A
RM-GA015
2-6. Triage  Chart
No Video
No Video
No Video
No Tuner
Tuner OK
No HDMI
No Audio
BL OK
No BL
BL OK
Video OK
Video 1-3
OSD OK
No OSD
Bad
BA board
HL4A board
HSN board
G2CE board
IP1 board
IP2 board
T-con board
Speaker unit
RF module
Panel module
LVDS cable
Joint connector
Problem
Low B+
Low B+
BL
Temp
Audio
Digital
Balancer
T-con
Flowchart
A
A
D
A
B
A
A
D
A
C
A
CCCCB
Video distored or missing
Reference
8Blinks
10Blinks
13Blinks
14Blinks
2Blinks
5Blinks
6Blinks
7Blinks
No Power
Symptom (dead set)
Doubtful Part
Few Possibility
– 10 –
KLV-32, 40, 46W550A
RM-GA015
SECTION 3
TROUBLESHOOTING
3.1 Flowchart
3-1-1. Flowchart A
2,5,7,10,13 BLINKS, NO VIDEO/
NO BL AND NO POWER
2,5,7,10,13 BLINKS, NO VIDEO/
NO BL AND NO POWER
176-264VAC
Inlet on 
3.3V_DC
CN1300 3PIN on 
BA Board
Does Power 
Button work?
BA Board 
Yes
Yes
Yes
AC Cable or AC Inlet
G2CE or IP1 or IP2  
(No STBY 3.3V)
Switch Unit
No
No
No
88-132VAC
Inlet on 
G2CE, IP1, IP2
G2CE, IP1, IP2
Destination
Taiwan
E, Hong Kong
– 11 –
KLV-32, 40, 46W550A
RM-GA015
3-1-2.
Flo
wc
har
t B
Only 
Speaker 
out?
HDMI 
Problem
?
Analog 
Channel 
Problem
?
Digital 
Channel 
Problem
?
BA Board
No
No
No
No
UI o
f 
Au
dio S
e
tting
     
correct
? 
Vo
lu
m
e
, T
V
 
Speaker
BA Board
BA Board or
RF module
BA Board or
RF module
Set correctly or 
reset by me
nu
Che
ck Spea
ker 
BA board
No
Yes
Yes
AUDIO PROBLEM  
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