Sony KDL-22EX550 / KDL-22EX553 / KDL-22EX555 / KDL-26EX550 / KDL-26EX553 / KDL-26EX555 / KDL-32EX650 / KDL-32EX653 / KDL-32EX655 Service Manual ▷ View online
KDL-22/26EX550,553,555,32EX650,653,655(AEP/UK/IT)
89
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
3-10. Skype MALFUNCTION 1/2
-Unplug other USB device
-AC OFF/ON
-AC OFF/ON
TROUBLE SHOOTING
NG
KDL-22/26EX550,553,555,32EX650,653,655(AEP/UK/IT)
90
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
Sound
quality
quality
No video
Previous page
OK
NG
No
Yes
No
Yes
No
Yes
Yes
NG
3-10. Skype MALFUNCTION 2/2
TROUBLE SHOOTING
KDL-22/26EX550,553,555,32EX650,653,655(AEP/UK/IT)
91
3-11. 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-22/26EX550,553,555,32EX650,653,655(AEP/UK/IT)
92
SEC 4. DIAGRAMS
4-1. BLOCK DIAGRAM
4-1-1. KDL-22/26EX550/553/555
TCON
P
A
N
N
E
L
Reset
Ether
PHY
X’tal
Temp
Sensor
Audio
Power AMP
EQ SW
Atreyu
HDMI1
(ARC)
HDMI2
PC
SPDIF
Main
SPEAKER
Ether
KEY
LED
TMDS1
DDC1
DDC1
HPD1
CEC1
PC_G
PC_R,PC_G,PC_B,PC_H,PC_V
PC_LR
TMDS
DDC
CEC
SPDIF
Line Out_LR
Power_Control
MAIN_PWR
Power_KEY
KEY
Light_Sensor_Det
STBY_LED
POWER_LED
TL-JIG
UARTA(LOG)
BACKLIGHT_ON
PWM_
DIMMER1
BACKLIGHT_MON
TMDS2
DDC2
DDC2
HPD2
CEC2
PC_5V, PC_DDC
SYSTEM2_PWR
PC_CON_Det
COMP_LR
HP/Line Out LR
HP_/ Line Out Det
CI/CI+
X_SYSTEM1_RST
X_AUDIO_MUTE1
PC_LR
COMP_LR
ACT_STBY
OPAMP
[TPA6138A2]
OPAMP
[NJU72011RB]
[YDA175]
H/L
Main Speaker_Out_LR
AC_MON
I2CA
I2CA
DC_
DIMMER2
USB1
USB
HUB
X’tal
Power
Tuner_LR
Current
Limit
USB3
Wifi
Wifi
AC
_M
ON
POWE
R_
KEY
KEY
POWER_LED
RE
C_
LED
C_
LED
X_
SYSTEM1_R
SYSTEM1_R
ST
PWM_DIMMER
DC_MON
KEY
Light_Sensor_Det
UARTA (LOG)
ACT_STBY
DEB
U
G_LED1
T-CON_V
CC (5V
)
UARTC(ECS)
5V
[JUNO]
[Luxor]
[Sil9287B]
(Service)
[ASCOT2SR]
I2CB
IF2
IF1
X_SYSTEM1_RST
Silicon
Tuner
Ext Demod
COMP_Y
COMP_Pb
COMP_Pr
COMP_Pb
COMP_Pr
PC_V
COMP
COMP_Y, Pb, Pr
VideoB_Det
VideoB_Det
Scart1_LR
Tuner_LR
PC_G
PC_B
PC_R
PC_H
PC_B
PC_R
PC_H
COMP_Y
Cr_Det
S1.8V
LDO
3.3V
LDO
LDO
DDC
5V
STBY 3.3V
2.5V
LDO
LDO
TCON-ON
SYSTEM2_PWR
DDC
REG_12V
T-CON_VCC
REG12V
AUDIO_12V
REG_12V
BACK
LIGHT_
MON
X_
AUDIO
AUDIO
_
MUTE1
X_
AUDIO
AUDIO
_
MUTE2
PANEL_
PWR_
Det
5V
PC
_C
ON_
_C
ON_
D
ET
Crystal
VI
DE
DE
OA
_DET
VI
DE
DE
OB
_DE
T
CR
_D
ET
ET
TIMER_LED
PIC_MUTE_LED
REC_LED
Temp Sensor
I2CA (EQSW, Temp Sensor)
I2CB (Ext Demod/AudioAMP)
I2CB (Ext Demod/AudioAMP)
DMD_RST
X_AUDIO_MON
STBY_LED
TIMER_
L
E
D
MA
IN_
P
WR
Blinking
DDC_5V_1
DDC_5V_2
TS1
JTAG
Light Sensor
BI
N
N
T
/Panel l
ess
IF1
Main Speaker_Out_LR
S1.2V
LDO
AUDIO_MON
DEBUG_LED2
DEBUG_LED3
DMD_CLK_ENABLE1
PANEL_PWR
Atreyu_SPDIF
BACK
LIGHT_
ON
SYSTEM2_P
W
R
R
SYSTEM1_P
W
R
R
PIC
_
MUTE
_LE
D
1.5V
3.3V
I2CC (Panel)
DMD_CLK_ENABLE2
HDMI_ARC
DMD_RST
DMD_CLK_ENABLE1
DMD_CLK_ENABLE2
X_SYS
T
EM1_
RS
T
X
_
SYSTEM1_
R
ST
Reset
UARTC (ECS/Hotel)
Analog Video
Digital Video/TS/TMDS
Analog Audio
UART
Digital Audio
I2C
Analog Signal
PWM
SPI
MS
TS
/RST
Panelless
AC_MON
Reset
H Con.
HP/Line
Out
X_FAULT
Sircs
SIRCS
AUDIO_12V
REG12V
1.2V
SYSTEM1_PWR
DDC
REG_12V
3.4V
LDO
LDO
SYSTEM2_PWR
NMI
HP_DET
PC_RGB_EN
PC_RGB_EN
ARC
3.3->1
LVDS_ODD
I2
C
C
HDMI_ARC
UARTD (VPC_LOG)
LPF
PC_
R
GB_E
N
UARTD(VPC_LOG)
BINT(
W
P)
Current
Limit
DC_5V_Det
PS_STATUS (no use)
DC_DIMMER
Blinking (32inch and over)
[PST3629]
GND
8K
48M
32.76
Push
[LM75B]
−1333
2Gb
−1333
Muxed
2Gb
4Gb
DDR3
One
−
NAND
DDR3
[RTL8201F]
[TPS2553DBV]
[GL850G]
75
Drv
[NJM2561]
12M
X’tal
41M
X’tal
27M
X’tal
41M
X’tal
4M
DDC
I2CB
Ext Demod
LNA
DiSEqC_Out
IFAGC
IFAGC
DiSEqC_In
LNA
LNB_POWER
(for S2 model)
[A8298]
(for T2/C2 model)
Satellite
Terrestrial
TV_Out
Scart_CV,R,G,B,FB
Scart_LR
Scart_LR
TV_Out_LR
ASPECT1
Scart_CV
Scart_G
Scart_B
Scart_R
Scart_B
Scart_R
Scart_FB
TV_Out
X_AUDIO_MUTE2
SCART
TV_Out_LR
AS
PE
CT1
PE
CT1
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