Sony KDL-32HX750 / KDL-32HX753 / KDL-32HX75A / KDL-40HX750 / KDL-40HX753 / KDL-40HX75A / KDL-46HX750 / KDL-46HX753 / KDL-46HX75A / KDL-55HX750 / KDL-55HX753 Service Manual ▷ View online
TROUBLE SHOOTING
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3-11. Skype MALFUNCTION 2/2
Far end
Auto-Focus work?
Sound quality?
Call Skype sound test
Move unit away
Sound
quality
No
No
NG
Video/Audio quality?
Auto-Focus work?
No video?
Call Skype sound test
from speaker
No video
OK
NG
Yes
Yes
Network speed
or
far end system issue
Enough network speed?
Far end setting/system
Skype unit
Yes
Manual Focus work?
Skype unit
No
Yes
Check Auto-Focus area
97
KDL-32/40/46/55HX750,753,75A
TROUBLE SHOOTING
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3-12. Troubleshooting Reference
3-12-1. BAPS ( A Side )
Parts
Location
Parts
PWB Drawing Parts Location
IC6001
C
Note: Refer to each Troubleshooting
for details information.
C
A
D
E B
IC6001
IC6003
D
Parts
Location
Parts
PWB Drawing Parts Location
F6001
D
IC6003
CN6001
A
E
F6001
F6003
CN6001
B
98
F6003
KDL-32/40/46/55HX750,753,75A
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TROUBLE SHOOTING
3-12-2. BAPS ( B Side )
Parts
Location
Parts
PWB Drawing Parts Location
JL6001
C
Note: Refer to each Troubleshooting
for details information.
JL6001
JL6002
D C
D
JL6001
JL6002
E
F
JL6005
A
B
E
Parts
Location
Parts
PWB Drawing Parts Location
F4601
JL6005
JL6017
A
F
F4601
IC4601
JL6017
IC4601
B
99
KDL-32/40/46/55HX750,753,75A
SEC 4. DIAGRAMS
4-1. BLOCK DIAGRAM
4-1-1. KDL-40, 46, 55 HX750, HX753 (Except Taiwan/ Hong Kong)
4M
[TPS2553DBV]
[TPS2553DBV]
[GL850G]
[RTL8201F]
One–
NAND
Muxed
DDR3
1333
DDR3
–1333
2Gb
P
A
N
E
L
Aerial
X’tal
LNA
Silicon
Tuner
DMD_RST
DMD_CLK_ENABLE1
DMD_CLK_ENABLE2
MS
USB2
USB1
USB3
Wifi
H Con.
Current
Limit
5V
5V
X_
SY
ST
EM
1_
RS
T
Current
Limit
USB
HUB
Ether
X_
SYST
EM
1_
R
S
T
Ether
PHY
TCON
PEL4
41M
12M
[ASCOT2SR]
[Sil9287B]
[GL850G]
[RTL8201F]
Muxed
4Gb
–1333
2Gb
L
HDMI1
(ARC)
(GA only)
IF1
X_SYSTEM1_RST
HDMI2
TMDS1
DDC1
HPD1
CEC1
TMDS2
DDC_5V_1
ARC
DDC2
HPD2
DDC_5V_2
CEC2
TMDS3
EQ SW
I2CA
I2CB
TS
X’tal
Crystal
LVDS_ODD
LVDS_EVEN
SA
_M
O
D
E
I2
C
C
BI
NT
(W
P)
PW
M_
DI
MM
ER
DC
_D
IM
MER
GR
S
_C
TRL
1
GR
S
_C
TRL
2
Bl
inki
ng(
EL_TI
M
)
EM
I_
FA
IL
T-
CO
N_
VCC
(1
2V
)
SYSTEM2_PWR
1.5V
SYSTEM1_PWR
48M
Push
GND
32.76
8K
[PST3629]
HDMI3
HDMI4
DDC3
HPD3
DDC_5V_3
CEC3
DDC4
HPD4
DDC_5V_4
TMDS4
CEC4
HDMI_ARC
3.3->1
IF1
TMDS
DDC
CEC
COMP_Y
DDC
REG_12V
3.3V
2.5V
LDO
SYSTEM2_PWR
5V DDC
REG_12V
1.2V DDC REG_12V
3.3V
LDO
3.4V
LDO
S1.8V
LDO
S1.2V
LDO
SYSTEM2_PWR
Po
we
r
T-CON_VCC
REG12V
AUDIO_12V
AUDIO_12V
AUDIO_12V
REG12V
_Control
BACKLIGHT_ON
PWM_DIMMER
BACKLIGHT_MON
DC_DIMMER
STBY 3.3V
TCON-ON
X’tal
X’tal
Reset
AC_MON
Reset
/RST
JTAG
VIDEO_CV
CVBS
VideoA_Det
VIDEO_CV
VIDEO1_LR
COMP_Y
PC
_
_
Pow
er
_
MAIN_PWR
ACT_STBY
AC_MON
Blinking(EL_TIM)
TL-J
IG
UARTA(LOG)
UARTC(ECS)
Reset
UARTD(VPC_LOG)
UARTA (LOG)
I2CA(EQSW,TempSensor)
I2CB (Ext Demod/AudioAMP)
I2CC (Panel)
UARTC (ECS/Hotel)
UARTD (VPC_LOG)
Atreyu
[LM75B]
(Service )
PC
COMP
COMP_LR
COMP_Y, Pb, Pr
VideoB_Det
Cr_Det
HOTEL_IR_SW
SW
For HOTEL IR Pass through
(GA/CH/HK/TW)
SIRCS
PC_R,PC_G,PC_B,PC_H,PC_V
PC_LR
PC_5V, PC_DDC
PC_CON_Det
COMP_LR
PC_LR
_
COMP_Pb
COMP_Pr
_RG
B
B
_E
N
LPF
PC_V
PC_G
PC_B
PC_R
PC_H
VIDEO1_LR
Tuner_LR
Temp Sensor
Sircs
Temp
Sensor
I2CA
SIRCS
For HOTEL IR Pass through
DEBUG_LED2
DEBUG_LED3
DMD CLK ENABLE1
PANEL_PWR
DMD_CLK_ENABLE2
KEY
Power_KEY
KEY
SPDIF
HP/Line
Out
HP/Line OutLR
HP_/ Line Out Det
SPDIF
Main Speaker_Out_LR
Atreyu_SPDIF
Line Out_LR
Tuner_LR
OPAMP
[TPA6138A2]
DMD_RST
X_AUDIO_MON
_
_
HDMI_ARC
HP_DET
PC_RGB_EN
KEY
KEY
Light_Sensor_Det
Light Sensor
LED
STBY_LED
POWER_LED
TIMER_LED
PIC MUTE LED
REC_LED
D
C
K
E
Li
g
BA PA DC
S
T
TI
M
M
A
S
Y
S
Y
PI
C
AC
P
O
D
E
P
S
H
O
P
O
R
E
X_
AC
X_
A
X_
A
PC
VI
D
VI
D
C
R
BA NM
SA
BI
N
100
H /L
[YDA175]
Main
SPEAKER
Main Speaker_Out_LR
X_FAULT
X_AUDIO_MUTE1
Analog Video
Digital Video/TS/TMDS
UART
Digital Audio
Analog Audio
Analog Audio
Analog Signal
PWM
I2C
SPI
X_SYSTEM1_RST
AUDIO_MON
Audio
Power AMP
PIC_MUTE_LED
TD Emitter
EMI_FAIL
GRS_CTRL2
GRS_CTRL1
C
_M
O
O
N
EY
ght
_S
ensor
_Det
ACK
LIG
H
T_
MO
N
N
ANE
L_
L_
P
W
R_
D
et
C_5V
_D
_D
et
TBY_L
ED
ED
M
ER
_LED
AIN
_P
W
R
Y
ST
EM
2_P
W
2_P
W
R
Y
ST
EM
1_P
W
1_P
W
R
C
_M
U
U
TE
_L
ED
C
_M
O
O
N
O
WE
R
R
_K
EY
EBU
G_
LE
D
1
S_
S
TA
TU
S
S
(no use)
O
TEL_I
R_
S
W
O
WE
R
R
_L
E
D
EC_L
ED
ED
SYST
EM
1_
R
S
T
C
T_
STBY
A
UD
IO
IO
_M
UT
E1
A
UD
IO
IO
_M
UT
E2
C
_CO
N
N
_D
ET
D
EO
A_
A_
D
ET
D
EOB
_D
ET
R
_D
ET
ACK
LIG
H
T_
ON
M
I
A_M
O
O
D
E
N
T/Panel
less
Panelless
KDL-32/40/46/55HX750,753,75A
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