Sony KDL-40NX720 / KDL-46NX720 / KDL-55NX720 / KDL-60NX720 (serv.man5) Service Manual ▷ View online
KDL-40/46/55/60NX720(K)
113
3-10. 3D MALFUNCTION
TROUBLE SHOOTING
3D malfunction
HEM2 Board
No
No
NG
Yes
Change
Watching environment
Panel (T-con)
[How to confirm IR-output.]
ex) Look IR-LED through CCD/CMOS camera.
IR has been output
on HEM board,
during 3D displaying.
Replace HEM2 board
Symptom
improvement
Check
whether there is
interception thing
between Emitter
and glasses.
No
Yes
Yes
Is 3D glasses
power on?
Power on
or
Charge battery
3D glasses
KDL-40/46/55/60NX720(K)
114
Skype malfunction
USB plugged?
Insert USB
Able to run Skype App?
Spec. USB overload.
Connect to other
USB port
B* board
Insert other Skype unit
or
USB dongle
Skype unit
B* board
Network connected?
Do network setup
Yes
No
Yes
No
No
OK
NG
OK
NG
OK
NG
Next page
Yes
3-11. Skype MALFUNCTION 1/2
-Unplug other USB device
-AC OFF/ON
-AC OFF/ON
TROUBLE SHOOTING
KDL-40/46/55/60NX720(K)
115
Far end
Video/Audio quality?
Network speed
or
far end system issue
Auto-Focus work?
Sound quality?
No video?
Manual Focus work?
Check Auto-Focus area
Enough network speed?
Skype unit
Call Skype sound test
Far end setting/system
Move unit away
from speaker
Skype unit
Audio problem
Video problem
Previous page
OK
NG
Yes
No
Yes
No
No
Yes
Yes
NG
3-11. Skype MALFUNCTION 2/2
TROUBLE SHOOTING
KDL-40/46/55/60NX720(K)
116
SEC 4. DIAGRAMS
4-1. BLOCK DIAGRAM
Satellite
Cable
Aerial
HDMI1
(ARC)
HDMI2
HDMI3
HDMI4
CVBS
COMP
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
Silicon
Tuner
X’tal
LNA
SW
LNA
X’tal
Silicon
Tuner
Ext Demod
IFAGC
Zero-IF
27MHz
IF1
IF2
Ext Demod
IFAGC
DDC
DiSEqC_Out
DiSEqC_In
DiSEqC_In
TS2
TS1
X’tal
I2CB
I2CB
DMD_RST
DMD_CLK_ENABLE1
DMD_CLK_ENABLE2
Current
Limit
5V
X_SYSTEM1_RST
MS
H Con.
USB4
Camera
USB3
Wifi
Current
Limit
5V
USB2
USB1
USB
HUB
5V
X_SYS
TEM1_
RS
T
Current
Limit
Crystal
Ether
PHY
X
_
SYSTEM1_
RST
Ether
LVDS
LVDS_ODD
LVDS_EVEN
I2C_
C
SA
_MODE/L
U
T
_
SEL0
PE
M
_
WDT/XBUSY/BI
NT
MO
DE_PEM/TCON_RDY
LUT_SEL1/X_TCO
N
_
RST/LR_FL
A
G
T_P
A
NE
L_SEL
TCON
PEL3
1.5V
SYSTEM2_PWR
REG_12V
REG_12V
1.2V
SYSTEM1_PWR
DDC
DDC
STBY 3.3V
T-CON_VCC
REG12V
AUDIO_12V
AUDIO_12V
REG12V
S1.8V
LDO
3.3V
LDO
LDO
S1.2V
LDO
3.4V
LDO
LDO
SYSTEM2_PWR
REG_12V
SYSTEM2_PWR
5V
DDC
DDC
REG_12V
SYSTEM2_PWR
3.3V
2.5V
LDO
LDO
X’tal
X’tal
AC_MON
Reset
Reset
JTAG
/RST
Power
MAIN_PWR
BACKLIGHT_ON
DIMMER
BACKLIGHT_MON
PFC_PWR
AC_MON
DIMMER_DC
TCON-ON
Power_Control
UARTA(LOG)
UARTD
PEM_LOG
MODE_PEM
DIMMER2
TL-JIG
UARTC(Hotel/ECS)
I2CA(Hotel_Clock)
Reset
SIRCS
Hotel /ECS
Temp Sensor
Temp
Sensor
I2CA
X_Hotel_PWR_CTRL
SIRCS
RF Remote
KEY
Sircs
UARTB
Power_KEY
KEY
UARTE
X_RF_RST
LED
Human Sensor
Light Sensor
LOGO
Light_Sensor_Det
Human_Sensor_Det
STBY_LED
POWER_LED
TIMER_LED
PIC_MUTE_LED
REC_LED
LOGO
I2CA (EQSW, Temp Sensor, Hotel Clock)
I2CB (Ext Demod)
I2CC (Panel, RGB Sensor)
UARTA (LOG)
UARTB (RF-Remote)
UARTC (IR Blaster/ECS)
Tuner_Sig_Det
DIMMER
LOGO
DIMMER_DC
DMD_CLK_ENABLE2
DMD_RST
DEBUG_LED2
DEBUG_LED3
DMD_CLK_ENABLE1
PANEL_PWR
HP_DET
X_WIFI_RST
X_AUDIO_MON
HDMIEQ_INT
SPDIF_SEL
DC_MON
KEY
Light_Sensor_Det
Huma
n_Sensor_Det
PANEL_SEL
BACK
LIGHT_MON
PANEL_PWR_Det
AC
_M
ON
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
PFC_MON
POWE
R_
KEY
KEY
DEB
UG_LE
D1
X_
RF_
RF_
R
ST
X_
HOTEL_
HOTEL_
PWR
_
C
T
RL
POWER_LED
RE
C_
LED
C_
LED
X_SYSTEM1_RST
PFC_PWR
BACK
LIGHT_ON
NMI
PC
_C
ON_
ON_
D
ET
CR
_D
ET
ET
X_AUDIO
_MUTE1
X_AUDIO
_MUTE2
VI
DE
DE
OA
_DET
VI
DE
DE
OB
_DE
T
X_
TCON_R
TCON_R
ST
SA_MODE
BI
N
N
T
TC
O
O
N
_R
DY
DY
DATA
1
Panelless
X_SYSTEM1_RST
AUDIO_MON
Audio
Power AMP
Audio
Power AMP
Main Speaker_Out_LR
Atreyu_SPDIF
Assist Speaker_Out_LR
OPAMP
Tuner_LR
Line Out_LR
PC_LR
COMP2_LR
VIDEO2_LR
VIDEO1_LR
Tuner_LR
PC_G
PC_B
PC_R
PC_R
PC_H
PC_V
[NJU72040V]
X_AUDIO_MUTE1
Main Speaker_Out_LR
X_FAULT
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
VideoB_Det
Cr_Det
COMP2_LR
VIDEO_CV
VIDEO1_LR
COMP_Y, Pb, Pr
VideoA_Det
3.3->1
CEC4
CEC3
DDC4
HPD4
DDC_5V_4
TMDS4
CEC2
DDC3
HPD3
DDC_5V_3
TMDS3
CEC1
TMDS2
DDC2
DDC2
HPD2
DDC_5V_2
TMDS1
DDC1
DDC1
HPD1
DDC_5V_1
ARC
EQ SW
I2CA
TS
X’tal
IF1
Atreyu
TMDS
DDC
CEC
VIDEO_CV
COMP_Y
COMP_Pb
COMP_Pr
COMP_Y
27M
[HORUS3]
[ASCOT2Sip]
[Sil9287B]
[D–510D]
[D–510D]
H / L
[GAIA1a]
[SEKITO2]
[LNBH23]
[MIC2005]
[TPS2553DBV]
[GL850G]
[TPS2553DBV]
[RTL8201E]
[PST3629]
S O N Y
[LM75B]
One–
NAND
Muxed
2Gb
DDR3
–1333
2Gb
DDR3
–1333
2Gb
4M
41M
12M
48M
Push
32.76
8K
GND
41M
0
0
P
A
A
N
E
L
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