Sony KLV-40X450A / KLV-46X450A / KLV-55X450A Service Manual ▷ View online
KLV-40/46/55X450A (E, GE) 2-11
No Picture
Power-ON_LED
Light
STBY_3.3V
OK?
G6 board has problem.
Change G6 board.
Change G6 board.
No
No
Yes
Yes
STBY_LED
Blinking?
Yes
2 times
blinking
6 times
blinking
blinking
Yes
Yes
No
No
Signal board has problem.
Check signal-board
Check signal-board
G6 board has problem.
Change G6 board.
Change G6 board.
No
Signal board has problem.
Check signal-board
Check signal-board
AC_OFF_DET
more than 3V
Yes
G6 board has problem.
Change G6 board.
Change G6 board.
No
CN6150 9pin
more than 3V
Yes
Signal board has problem.
Check signal-board
Check signal-board
No
G6 board has problem.
Change G6 board.
Change G6 board.
CN6150 1-4pin
=12
±
1V
Signal board has problem.
Check AAS board
Check AAS board
Yes
No
2-2-6. NO PICTURE
to
6 times blinking (40")
13 times blinking (40")
GL board check (46"/55")
13 times blinking (40")
GL board check (46"/55")
Power-ON
KLV-40/46/55X450A (E, GE) 2-12
STBY-LED
6 times blinking
6 times blinking
CN6702 2pin
Is Dimmer signal
normal?
Yes
CN6702 3pin
more than 3V?
Yes
No
No
Signal board has problem.
Check signal-board
Check signal-board
Signal board has problem.
Check signal-board
Check signal-board
D4 board has problem.
Change D4 board.
Change D4 board.
STBY-LED
13 times blinking
13 times blinking
CN6701 6,7pin
less than 1V?
Yes
No
Panel has problem.
Check Panel
Check Panel
D4 board may have problem.
Change D4 board.
Change D4 board.
Signal board h
as problem.
Check signal-
board
Picture OK?
No
D4 board is no problem.
Change back PS board.
Change back PS board.
Yes
D4 board has broken
Back-Light on
DIMMER
LD-signal
KLV-40/46/55X450A (E, GE) 2-13E
GL board check
CN6788
LED_xMUTE
more than 1V?
No
Signal board has problem.
Check signal-board
Check signal-board
Panel has problem.
Check Panel
Check Panel
GL board may have problem.
Change GL board.
Change GL board.
Picture OK?
No
Yes
CN6730
PFC_OUT
=390V±5%
No
G6 board has problem.
Change G6 board
Change G6 board
CN6930
PFC_OUT
=390V±5%
No
G7 board has problem.
Change G7 board
Change G7 board
Yes
Yes
GL board has broken.
Yes
G6 board
CN6505 1-2pin
=20V±30%
Yes
No
G6 board has problem.
Change G6 board
Change G6 board
46inch
55inch
KLV-40/46/55X450A (E, GE) 3-1
SECTION 3
DIAGRAMS
Aerial/Cable
Video2
Comp2
Audio-In DVI
PC Audio-In
VIDEO1
VIDEO3
DMPORT
Audio Out
HP Out
HDMI1
HDMI2
HDMI3
HDMI4
Comp1
Power SW
Key
IR
LED
SONY Logo
Analogue
Tuner
MSP3417
BASI
CXA3767
Audio
DSP
TAS3308
Video SW
CXA2240
EMMA3SL
HDMI EQ/SW
CXB1446
Sub Chroma
SAA7115A
Kaiser
MB91305
BEM
DRC V3
CVBS / YC
L/R
CVBS (Mon OUT)
L/R (Mon OUT)
CVBS
L/R
YCbCr
L/R
YCbCr
L/R
CVBS
L/R(diff)
UART
L/R
L/R
L/R
SEL
O
U
T
LO
HP
Touch
Panel
USB
NAND
512Mb
PC In
DDC
CEC
TMDS
DDC
CEC
TMDS
DDC
CEC
TMDS
DDC
CEC
TMDS
PHY
DDR2
512Mbx2
YCbCr/RGB
CVBS/YC(M)
CVBS/YC(S)
TMDS
DDC
DDR2
256Mbx2
DDR2
128Mbx3
SDR
64Mb
Flash
32Mb
32Mb
IIC
Flash
RTC
IIC
IIC
IIC
IIC
IIC
IIC
IIC
MS (JIG)
UART
UART
UART
AGA
FBA
Amp
NVM
SI
RCS
Amp
IIC
SP
DAC
I2S
QSS
L/R
CVBS
SPI
Mon Out
IIC
SW
IIC
I2S 2ch
SW
L
WL
R
WR
S-Mini
S-Mini
Companion
Sil19151
HDMI Rx
v1.3
BUS
SW
H/V/CK (for GPX)
REC656 (for teletext)
REC656 (for teletext)
GPX ARGB888 H/V/CK
EPP
CCP-XA
core
BUS
SW
BUS
SW
BUS
SW
IFP
core
RCP
LVDS
DRC v1
Ether
K2
NVM
FRAM
2Kb
SW
IIC
ADC
TH7984
Cayenne-S
DDR2
128Mb
T-CON
Cayenne-S
DDR2
128Mbx2
Babylon
DDR
128Mbx2
T-CON
FHD HFR LED
55”,46”
MEGA
MAC
FHD HFR CCFL
40”
SPI
NVM
NVM
NVM
Flash
CB1
(CT)
BL_NVM
CEC
DLY
3-1. BLOCK DIAGRAM
SECTION 3
DIAGRAMS
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