Sony KDL-40NX720 / KDL-40NX723 / KDL-40NX725 / KDL-46NX720 / KDL-46NX723 / KDL-46NX725 / KDL-55NX720 / KDL-55NX723 / KDL-55NX725 / KDL-60NX720 / KDL-60NX723 / KDL-60NX725 Service Manual ▷ View online
KDL-40/46/55/60NX720,723,725(AEP/UK/RUSS)
117
3-12. HDD-Rec MALFUNCTION
TROUBLE SHOOTING
HDD Rec
Malfunction
B board
HDD is connected
to the appropriate
USB port?
Connect to the
appropriate port
No
Yes
USB Hub is inserted
in between the
USB port and HDD?
USB Hub is
not supported
Yes
No
Is the drive size larger
than 32GB and
Smaller than 2TB?
Only 32GB~2TB
is supported
No
Yes
All the setups and
restrictions listed in
iManual are cleared?
Check the iManual
No
Yes
KDL-40/46/55/60NX720,723,725(AEP/UK/RUSS)
118
SEC 4. DIAGRAMS
4-1. BLOCK DIAGRAM
Cable
Satellite
Terrestrial
HDMI1
(ARC)
HDMI2
HDMI3
HDMI4
SCART
Conversion
Component
Conversion
PC
HP/Line
Out
SPDIF
Assist
SPEAKER
Main
SPEAKER
Analog Video
Digital Video/TS/TMDS
Analog Audio
UART
Digital Audio
Analog Signal
PWM
I2C
SPI
X_AUDIO_MUTE1
X_AUDIO_MUTE2
X_FAULT
Main Speaker_Out_LR
Assist Speaker_Out
X_SYSTEM1_RST
SPDIF
HP/Line Out LR
HP_/ Line Out Det
PC_R,PC_G,PC_B,PC_H,PC_V
PC_LR
PC_5V, PC_DDC
PC_CON_Det
COMP_LR
VideoB_Det
TV_Out
Scart_CV,R,G,B,FB
Scart_LR
TV_Out_LR
ASPECT1
CEC3
DDC4
HPD4
CEC4
DDC_5V_4
TMDS4
CEC2
DDC3
HPD3
DDC_5V_3
TMDS3
TMDS1
DDC1
DDC1
HPD1
CEC1
TMDS2
DDC2
HPD2
DDC_5V_1
DDC_5V_2
ARC
X_SYSTEM1_RST
Silicon
Tuner
X’tal
LNA
X’tal
SW
LNA
Silicon
Tuner
Zero-IF
27MHz
Ext Demod
IFAGC
IF1
IF2
Ext Demod
IFAGC
X’tal
TS1
TS2
DiSEqC_In
DiSEqC_Out
DDC
I2CB
I2CB
DMD_RST
DMD_CLK_ENABLE1
DMD_CLK_ENABLE2
CI/CI+
5V
Current
Limit
MS
USB3
Wifi
H Con.
USB4
Camera
USB2
USB1
5V
Current
Limit
USB
HUB
Crystal
Ether
PHY
5V
X_SYS
T
EM1_
RS
T
Current
Limit
X
_
SYSTEM1_
RST
Ether
LVDS
LVDS_ODD
LVDS_EVEN
TCON
PEL3
SA_MODE/L
U
T
_
SEL0
PE
M
_
WDT/XBUSY/BI
NT
I2C_
C
MO
DE_PEM/TCON_RDY
LUT_SEL1/X_TCO
N
_
RST/LR_FL
A
G
T_P
A
NE
L_SEL
1.5V
SYSTEM2_PWR
DDC
REG_12V
REG_12V
1.2V
SYSTEM1_PWR
DDC
SYSTEM2_PWR
DDC
3.3V
2.5V
LDO
LDO
REG_12V
SYSTEM2_PWR
5V
DDC
3.3V
LDO
LDO
3.4V
LDO
LDO
S1.2V
LDO
S1.8V
LDO
REG_12V
SYSTEM2_PWR
STBY 3.3V
T-CON_VCC
REG12V
AUDIO_12V
AUDIO_12V
AUDIO_12V
REG12V
Power
MAIN_PWR
BACKLIGHT_ON
DIMMER
BACKLIGHT_MON
PFC_PWR
AC_MON
DIMMER_DC
TCON-ON
Power_Control
UARTA(LOG)
UARTC(Hotel/ECS)
UARTD
PEM_LOG
I2CA(Hotel_Clock)
MODE_PEM
Reset
SIRCS
DIMMER2
TL-JIG
Hotel /ECS
X’tal
Reset
X’tal
AC_MON
Reset
/RST
JTAG
I2CA (EQSW, Temp Sensor, Hotel Clock)
I2CB (Ext Demod)
I2CC (Panel, RGB Sensor)
UARTA (LOG)
UARTB (RF-Remote)
UARTC (IR Blaster/ECS)
X_Hotel_PWR_CTRL
I2CA
Tuner_Sig_Det
DIMMER
LOGO
DIMMER_DC
DMD_CLK_ENABLE2
DEBUG_LED2
DEBUG_LED3
PANEL_PWR
DMD_RST
DMD_CLK_ENABLE1
HP_DET
X_WIFI_RST
UARTB
Power_KEY
KEY
UARTE
X_RF_RST
Temp
Sensor
SIRCS
Temp Sensor
Sircs
RF Remote
KEY
Human Sensor
Light Sensor
Light_Sensor_Det
STBY_LED
POWER_LED
Human_Sensor_Det
TIMER_LED
PIC_MUTE_LED
REC_LED
LOGO
LED
LOGO
X_AUDIO_MON
HDMIEQ_INT
SPDIF_SEL
DC_MON
KEY
Light_Sensor_Det
AS
PE
CT1
PE
CT1
Hum
a
n_Sensor_Det
PANEL_SEL
BACK
LIGHT_MON
PANEL_PWR_Det
STBY_LED
TIMER_L
E
D
MA
IN_
P
WR
MA
IN_
SS_
MON
SYSTEM2_P
W
R
R
SYSTEM1_P
W
R
R
PIC
_
MUTE
_LE
D
AC
_M
ON
PFC_MON
POWE
R_
KEY
KEY
DEB
UG_LE
D1
X_
RF_
RF_
RST
X_
HOTEL_
HOTEL_
PWR
_
C
T
RL
POWER_LED
RE
C_
LED
C_
LED
X_SYSTEM1_RST
PFC_PWR
X_AUDIO
_
MUTE1
X_AUDIO
_
MUTE2
PC
_C
ON_
_C
ON_
D
ET
VI
DE
OA
DE
OA
_DET
VI
DE
DE
OB
_DE
T
CR
_D
ET
ET
BACK
LIGHT_
ON
NMI
Panelless
X_
TCON_R
TCON_R
ST
SA_MODE
BI
N
N
T
TC
O
O
N
_R
DY
DY
DATA
1
Audio
Power AMP
X_SYSTEM1_RST
AUDIO_MON
OPAMP
Audio
Power AMP
TV_Out_LR
Tuner_LR
Main Speaker_Out_LR
Atreyu_SPDIF
Assist Speaker_Out_LR
OPAMP
[NJU72040V]
Line Out_LR
PC_LR
COMP_LR
AV3_LR
Scart1_LR
Tuner_LR
PC_G
PC_B
PC_R
PC_H
PC_V
COMP_Y
COMP_Pb
COMP_Pr
Scart_CV
Scart_G
Scart_B
Scart_R
Scart_FB
Select_Out
COMP_Y
TV_Out
Drv
75
Ω
TMDS
DDC
CEC
X’tal
IF1
TS
Atreyu
EQ SW
I2CA
3.3->1
27M
4M
41M
41M
12M
One–
NAND
Muxed
2Gb
DDR3
–1333
2Gb
DDR3
–1333
2Gb
0
0
[HORUS3]
[SEKITO2]
[LNBH23]
[TPS2553DBV]
[TPS2553DBV]
[RTL8201E]
[PST3629]
[LM75B]
[GL850G]
[NJM2561]
[ZHUI]
[Sil9287B]
[ASCOT2Sip]
[NJU72011RB]
[D–510D]
[D–510D]
H / L
48M
GND
Push
32.76
8K
SONY
P
A
A
N
E
L
KDL-40/46/55/60NX720,723,725(AEP/UK/RUSS)
120
DIAGRAMS
4-2-1. KDL-40NX720/723/725 (2/2)
NC
1
12V
NC
2
12V
NC
3
GND
D
N
G
4
C
N
SM04B-PASS-TBT(LF)(SN)
1
1
-
0
6
4
-
9
1
8
-
1
V
2
1
1
1
V
2
1
2
2
D
N
G
3
3
D
N
G
4
4
1
D
N
G
L
R
T
C
_
S
L
G
5
5
2
X
T
_
D
T
R
A
U
2
L
R
T
C
_
S
L
G
6
6
3
X
R
_
D
T
R
A
U
L
I
A
F
_
I
M
E
7
7
4
T
E
S
E
R
C
N
8
8
5
V
3
.
3
+
_
Y
B
T
S
B
T
-
S
H
G
-
B
8
0
M
S
T
S
J
6
M
V
T
_
E
D
O
M
7
X
R
_
A
T
R
A
U
8
)
2
D
M
(
C
N
1
1
VLED_VCC
9
X
R
_
C
T
R
A
U
2
2
VLED_VCC
0
1
X
T
_
C
T
R
A
U
NC
3
NC
1
1
D
N
G
NC
4
NC
2
1
X
T
_
A
T
R
A
U
7
5
VLED_GND
3
1
X
I
R
T
A
M
_
S
C
E
8
6
VLED_GND
4
1
V
3
.
3
+
_
Y
B
T
S
9
7
VLED_GND
5
1
M
E
P
_
E
D
O
M
10
8
VLED_GND
PEM_LOG_RX
16
11
9
LD_ERR
PEM_LOG_TX
17
NC
10
NC
8
1
D
N
G
13
11
GL_CTRL
4
0
0
9
N
C
V
3
.
3
+
_
Y
B
T
S
0
1
0
1
14
12
LED_ON
12
1
5
-
7
6
6
-
4
7
7
-
1
V
5
.
2
1
+
O
I
D
U
A
9
CN1002
P
8
1
C
P
F
/
C
F
F
,
r
o
t
c
e
n
n
o
C
1
X
E
-
L
T
V
5
.
2
1
+
O
I
D
U
A
8
4
1
0-844-177-01
11
7
AUDIO+12.5V_GND
JST
13
6
AUDIO+12.5V_GND
SM12B-PBVSS-TB(LF)(SN)
15
5
REG+12.5V_GND
17
4
REG+12.5V_GND
16
3
REG+12.5V
18
2
REG+12.5V
24
1
T-CON_VCC
CN6001
1-821-620-11
HEADER ASSEMBLY FOR PWB 10P
7
9
AC_OFF_DET
1
8
POWERON
6
7
BL_ERR
NC
6
NC
NC
5
NC
NC
4
NC
8
3
TCON_ON
1
1
V
2
1
3
2
PFC_PWR
2
2
V
2
1
r
e
t
t
i
m
E
D
3
9
1
GND
3
3
D
N
G
V
-
a
3
CN6002
4
4
D
N
G
1-842-559-11
GLS_CTRL
5
5
GLS_CTRL2
6
6
EMI_FAIL
7
7
8
8
C
N
1-821-135-11
CN6704 (32" G10AW)
To B board (100106)
T-CON_Vcc12V
28
NC
GND
27
NC
T-CON_VCC12V
26
NC
GND
25
NC
T-CON_VCC_12V To B
24
1
GND
23
NC
BDR_ASU_12V
22
NC
GND
21
NC
BDR_ASU_12V
20
NC
GND
19
NC
REG12V
18
2
GND
17
4
REG12V
16
3
GND
15
5
AU_12V
14
8
AU_GND
13
6
AU_12V
12
9
AU_GND
11
7
STBY3.3V
10
10
GND
9
1
T-CON_ON
8
3
AC_OFF_DET
7
9
BL_ERR
6
7
NC
5
NC
NC
4
NC
PFC_ON
3
2
NC
2
NC
POWERON
1
8
VLED_VCC
1
1
VLED_VCC
2
2
VLED_VCC
3
NC
VLED_VCC
4
NC
NC
5
NC
VLED_GND
6
NC
VLED_GND
7
5
VLED_GND
8
6
VLED_GND
9
7
VLED_GND
10
8
LD_ERR
11
9
NC
12
NC
GL_CTRL
13
11
LED_ON
14
12
CN6801(40" G4BW)
CN6705 (32" G10AW)
JST XA 14P
1-822-339-11
1-822-339-11
AC_IN
AC-N
1
1
AC-L
2
2
CN6001
SFP79-02WLB JAM
1-822-908-11
1-822-908-11
Energy_Saving_SW
AC(N)-IN
1
1
AC(L)-IN
2
2
CN6002(40" G4BW /32" G10AW)
SFP79-02WLB JAM
1-822-908-11
1-822-908-11
Energy_Saving_SW
AC(L)-OUT
1
1
AC(N)-OUT
2
2
CN6003(40" G4BW /32" G10AW)
SFP79-02WLB JAM
1-822-908-11
1-822-908-11
CN6151(40" G4BW) SJM20-28W
ES SW
B board
T-con
Option
BLK board
HEM2
TC-EM Harness
PEL3-HEM2
PEL3-HEM2
T-con
B board
TL-EX1JIG board
AC pigtail
BAT-L board
(Only Interface between board and board)
T-con Board (PEL3)
BLK Board
[3a-1 32,40 2/2]
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