Sony KDL-55X4500 Service Manual ▷ View online
KDL-55X4500 (CH) 2-12E
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
KDL-55X4500 (CH) 3-1
3-1. BLOCK DIAGRAM
SECTION 3
DIAGRAMS
Video2
Comp2
Audio-In DVI
PC Audio-In
VIDEO1
VIDEO3
DMPORT
Audio Out
Opt. Out
HP Out
HDMI1
HDMI2
HDMI3
HDMI4
Comp1
Power SW
Key
IR
LED
SONY Logo
CH
UFE
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
SPDIF
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
DAC
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
SPDIF
ACW
FBA
Amp
NVM
SI
RCS
Amp
IIC
SP
DAC
I2S
QSS
TS
IIC
L/R
CVBS
SPI
YC
L/R
Mon Out
SW
IIC
SW
IIC
I2S 2ch
SW
I2S 2ch/5.1ch
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
YCbCr16bit H/V/CK
EPP
CCP-XA
core
BUS
SW
BUS
SW
BUS
SW
IFP
core
RCP
LVDS
DRC v1
SW
UART
K2
NVM
FRAM
2Kb
SW
IIC
ADC
TH7984
Cayenne-S
DDR2
128Mbx2
Babylon
DDR
128Mbx2
T-CON
FHD HFR LED
55”
MEGA
MAC
SPI
NVM
NVM
Flash
CB1
Ether
PHY
RF RC
Aerial
Cable
BL_NVM
CEC
DLY
SW
KDL-55X4500 (CH) 3-2E
3-2. CIRCUIT BOARDS LOCATION
G7 board
CB1 board
K2 board
H3VM board
GL board
H4 board
G6 board
Illumination Module
RF Module
Touch sensor Module
FBA board
ACW board
H1VM board
KDL-55X4500 (CH) 4-1
SECTION 4
EXPLODED VIEWS
NOTE:
• Items with no part number and no description are
not stocked because they are seldom required for
roution service.
roution service.
• The construction parts of an assembled part are
indicated with a collation number in the remark
colum.
colum.
• Items marked " * " are not stocked since they are
seldom required for routine service. Some delay
should be anticipated when ordering these items.
should be anticipated when ordering these items.
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