Panasonic TX-L55WT50B / TX-L55WT50Y / TX-LR55WT50 Service Manual ▷ View online
CI SLOT
JK1070
BT
A21
WIFI
A20
HDMI2
JK4701D
HDMI1
JK4700D
HDMI4
JK4703D
HDMI3
JK4702D
SER
VICE
CN0100
SD SLOT
CN8660
PC
JK3005
A-BOARD
AV scart
JK3003
JK8600
ETHERNET
TU6702
A12
SPEAKERS WOOFER
A10
K-BOARD
REMOTE
UNIT
K10
LP-BOARD
LP10
RM10
A02
D3006
DIGIT
AL
AUDIO
OUT
LCD PANEL
A16
HP
JK3051
JK3001
YUV
,V IN,
AUDIO IN
Side T
erminal
Bottom T
erminal
TUNER
JK8450
USB1
JK8451
USB3
JK8452
USB2
Wiring Diagram
P-BOARD
LD-BOARD
P2
CN001
MAIN IN
P4
CN700
CN100
LD3
LD1
LD2
LD4
25
Block Diagram (1/2)
IC8000
[MN2WS0235E]
PRO4
Audio Output
Video Input
Video Output
JK3003
AV1_VIN
11
AV1_VOUT
2
AV1_RED/C
18
AV1_GREEN
15
AV1_BLUE
13
AV1_LIN
7
AV1_LOUT
5
AV1_RIN
8
AV1_ROUT
4
AV1
R3
59
57
55
56
58
58
52
G3
B3
JK3005
PC
1
2
3
2
3
PC-R
PC-G
PC-B
PC-G
PC-B
V1
R3
G3
B3
G3
B3
R2
G2
B2
B2
Y
PB
PR
L
R
L
Y/V
in,PB,PR
JK3001
AUDIO
IN
LIN3_LP
L
R
LIN3_RP
R1
G1
B1
R
G
B
P_HIN
P_VIN
P_VIN
VOUT
Video (PC) Input
R5IN
L5IN
L5IN
HP1_L
JK3051
HP1_R
HP-OUT
LO1_L
LO1_R
L1OUT
R1OUT
HP1_L
HP1_R
Digital
Audio
Out
D3006
IECOUT
ARCOUT
IECOUT
SUB3.3V
JK4700D
HDMI1
HPD3
5VDET3
DDCSDA3
DDCSDA3
DDCSCL3
CEC
CEC
RX3
JK4701D
HDMI2
HPD2
5VDET2
DDCSDA2
DDCSCL2
DDCSCL2
CEC
RX2
JK4702D
HDMI3
HPD1
5VDET1
DDCSDA1
DDCSCL1
CEC
DDCSCL1
CEC
RX1
JK4703D
HDMI4
HPD0
5VDET0
DDCSDA0
DDCSDA0
DDCSCL0
CEC
RX0
HDMI I/F
RX3
RX2
RX1
RX0
ARCOUT
STM
HPD2
HPD1
HPD0
HPD3
5VDET2
5VDET1
5VDET0
5VDET3
DDCSDA0
DDCSCL0
DDCSDA1
DDCSCL1
DDCSDA2
DDCSCL2
DDCSDA3
DDCSCL3
DDCSDA4
DDCSCL4
CEC
HDMI I/F
JK8450
USB1
IC8453
SW
6
1
3
4
USB5V
USB2VBUS
USB2OD
USB2DP
USB2DN
JK8451
USB3
IC8454
SW
6
1
3
4
USB5V
USB1VBUS
USB1OD
USB1DP
USB1DN
JK8452
USB2
IC8455
SW
6
1
3
4
USB5V
PWR
OVR
DD-
DD+
A20
WiFi
IC8457
SW
6
1
3
4
USB5V
PWR
OVR
DD-
DD+
IC8458
USB HUB
31
30
17
18
43
42
5
6
SUB3.3V
1,7,12,16,19,
25,34,37,38,44
3
4
USB0DP
USB0DN
USB I/F
USB2VBUS
USB2OD
USB1VBUS
USB1OD
USB POWER CTRL
P24
P25
ETHERNET
JK8600
9
T8600
1
2
3
6
11
14
16
8
6
3
1
TX+
TX-
RX+
RX-
IC8600
[C1CB00003736]
LAN CONTROLER
6
5
4
3
RMII_RXD0,RXD1
RMII_TXD0,TXD1
RMII_REFCLK,TXEN,
CRS_DV,RXER
MDIO,MDC,INTL,
PHYRSTL
SUB3.3V
7,14,30
31
32
X8600
TX+
TX-
RX+
RX-
LAN CON I/F
CI SLOT
JK1070
17,18
51,52
SUB_CI_5V
CN8660
SD SLOT
SUB3.3V
TS-OUT
TS-IN
TS Parallel output
TS Parallel input
HSBCLKOUT
HSSYNCOUT
HSVALOUT
HSDOUT[0;7]
HS0BCLKIN
HS0SYNCIN
HS0VALIN
HS0DIN[0;7]
SYSTEM BUS
CI I/F
SDDA
TA
SD CARD I/F
CN0100
SERVICE
SUB5V
IC8202
DDR3
SUB1.5V
IC8203
DDR3
SUB1.5V
IC8200
DDR3
SUB1.5V
IC8201
DDR3
SUB1.5V
DDR3 I/F
IC8900
NAND FLASH
SUB3.3V
NAND FLASH I/F
IC8902
EEPROM PRO4
SUB3.3V
EEP_WP
BE I2C
A23
A12
IC4900
[C1AB00003871]
AUDIO AMP
32
1
2
3
1
2
3
4
17,18,23,24,31
11,12
14,15
26,27 29,30
L-
L+
R+
R-
Y6
AB7
AB5 AA6
AUDIO OUT
16V
SOUND_SOS
STM
AL30
IC5000
[AN34043AAVF]
ANALOG ASIC
1
6
2
14
30 31
STB5V
STB5V
SUB5V
SUB9V
STB1.1V
28 12
32
STB3.3V
HP_MUTE
23
Q4971 Q4972
HP_MUTE
HP_MUTE
PEAKSRST
PEAKSRST
STB_XRST
STB_XRST
AC13
BL_PWMA
3
PWM_A_IN
F5
3
7
9-10
12
A02
TO P2
4
6
9
13
1,3,5
16V
TV_SUB_ON
STB5.8V
2
BL_ON
BL_SOS
KEY1
15
TV_SUB_ON
AD17
KEY1
BL_SOS
BL_ON
REMOTE
R_LED
G_LED
STB3.3V
A10
11
9
10
7
6
5,10
3
AI
4
SUB3.3V
9
R2003
SUB_AI_3.3V
REMOTE
G_LED
R_LED
AI
TO K10 / LP10 / RM10
SUB3.3V
15
SUB_AI_3.3V
OVP SOS
SUB3.3V
USB5V
SUB5V
TU_1.2V
SUB1.1V
SUB1.5V
IC5300
REG
4
9
16V
PNL12V
IC5400
REG
2
3
16V
SUB3.3V
IC5420
REG
2
3
16V
SUB5V
IC5440
REG
8
7
16V
USB5V
9
1,14
16V
SUB1.1V
8
6
16V
SUB1.5V
IC8702
REG
8,5
1
SUB3.3V
SUB1.8V
IC8404
REG
1
5
SUB5V
SUB_CI_5V
IC8660
REG
8
1
SUB5V
SUB3.3V
IC8706
REG
4,1
3
SUB5V
HDMI3.3V
A16
RX0AN,P; RX0BN,P
RX0CN,P; RX0CLKN,P
RX0DN,P; RX0EN,P
RX1AN,P; RX1BN,P
RX1CN,P; RX1CLKN,P
RX1DN,P;RX1EN,P
19,20,21,22,
24,25,27,28
29,30,31,32
34,35,36,37
39,40,42,43
44,45,46,47
LVDS I/F
PNL12V
1-9
54,55
BE I2C
SDA,SCL
SER
VICE
59
57
56
SDA,SCL
TO P
ANEL
VJ8660
VDDSD18V33V
SUB3.3V
R8637
WOL3.3V
SUB3.3V
STB3.3V
STB1.1V
SUB1.1V
SUB1.8V
SUB1.5V
SUB3.3V
VDDSD18V33V
WOL3.3V
HDMI3.3V
A-BOARD
[EXCHANGE UNIT]
SER
VICE
POWER_ON
POWER_ON
1
2
3
1
2
3
1
2
3
1
2
3
IC8100
Step_down
CONVERTER
IC8101
Step_down
CONVERTER
L6707
SI_3.3V
SAT3.3V
22
5
6
IC4901
[C1AB00003871]
AUDIO AMP
32
1
2
3
17,18,31
11,12
14,15
16V
W6
BE COMMON I/O
Wo- Wo+
SP_L
SP_R Woofer
BT_LR
PWM_ENB
5
PWM_ENB
49
LOGO_ON
LOGO_ON
Y17
A21
11
2
1
3
5
BT_LR
SUB3.3V
9
10
BT_USBDN
BT_USBDP
BLUETOOTH
8
3D_ON
3D_ON
D5
14
BL_ECO
IC5780
REG
2
3
16V
TU_1.2V
IC5720
REG
1
5
SUB3.3V
TUNER DVB-T/T2/C/SA
T
TU6702
SI_3.3V
SUB1.8V
12,13,14,
2
SDA/SCL
7,8
SDA/SCL
16V
22
FE_XRST
6
20
FE_XRST
IC6851
[C1AB00003807]
LNB
DMD_IIC0
FE_XRST
U29
IFAGC1
9
IFAGC1
DMD_ IIC1
DMD_IIC0
TUNER I2C
IFAGC1
IF1_P,N
10,11
IF1_P,N
AL10
AN16
AP17
AL16
AM17
AM17
AN18
AL17
AM19
AE29
AN12
AP13
AP14
AN13
AM13
IF1_P,N AM10, AN10
Parallel TS
TS Parallel input
SDA/SCL
15,16
DMD_IIC1
TU_1.2V/2.5V
20
18
33
8,7
LNB_PWR
32
DISEQC
21-31
1
AL9
SAT EN
FE_1.2V/2.5V
FE_1.2V/2.5V
16V
16V
OEBLK
OENB
OENB
OEBLK
IC2002
Operational
AMP
5
SUB3.3V
4
LP_FB
12
15V
38,37
DMD_ IIC1
TU_1.2V/2.5V
SUB3.3V
48
29
FE_XRST
IFAGC2
T2FEAIN_P,N
IC6900
[C1AB00003808]
DVB-T/T2/C DEM
Parallel TS
3,4,5,8,9,12
13,14,15,16,17
34 35
X6900
3
IFAGC2
4,5
IF2P/N
IC3001
(C1AB00003385)
4
46
2
30,31
16
14
12
14
12
10
36
37
37
6
8
8
38
39
39
45
34
33
33
64
SUB9V
SUB5V
SUB3.3V
26
Block Diagram (2/2)
K-BOARD
K10
4
5
6
7
5
6
7
3
STBY 3.3V
SUB3.3V
SN2800
AI
3
1
VCC
OUT
D2800
R G
AI
G LED
R LED
SUB3.3V
AI
STBY 3.3V
R LED
G LED
LP-BOARD
TO
A10
LP10
2
1
TO
A10
D2880
D2881
D2882
D2883
LD-BOARD
IC9500
LED DRIVER
(C1ZBZ0004571)
LD2
3
5
7
5
7
2,4
6,8
10,12
14,16
1
TO P
ANEL
11
13
15
13
15
9
LD4
2
5
7
5
7
1
TO P4
10
9
VLED
VLED
16V
VLED
16V
2,3
3D on/off signal
BL-ON
BL-SOS
BL-ON
BL-SOS
61
1
60
LED-K8
LED-K7
LED-K6
LED-K5
LED-K4
LED-K3
LED-K2
LED-K7
LED-K6
LED-K5
LED-K4
LED-K3
LED-K2
LD1
3
5
7
5
7
4,18
6,8
10,12
14,16
TO P
ANEL
11
13
15
13
15
9
17
LED-K1
28
25
22
18
14
11
25
22
18
14
11
8
5
LED-K16
LED-K15
LED-K14
LED-K13
LED-K12
LED-K11
LED-K10
LED-K15
LED-K14
LED-K13
LED-K12
LED-K11
LED-K10
LED-K9
55
52
49
46
42
38
35
32
LD3
1-8
5
7
7
TO P
ANEL
11
13
20
13
20
9
64-71
PWMRST
72
77
76
75
74
PWM_CLK
SEL
SDI
SCK
LOAD
SEL
SDI
SCK
LOAD
78
DVDD
IC9502
LED DRIVER
IC9501
LED DRIVER
13,14
13,14
12
GATE
STB,VCC
12
GATE
STB,VCC
15
15
COMP1/2
27
Parts Location
NOTE:
The numbers on the exploded view below refer to the exploded view section of the Replacement Parts List.
26
9
30
15
17
1
40
18
4
6
16
(UK)
(CONTINENTAL)
10
13
TMK0EA153
32
TMK0EA153
TMK0EA177
TMK0EG079
TMK0EG081
TMK0EG083
TEWB433
TEWB890
TEWF387
TEWF385
TEWF386
TEWF383
41
28
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