Panasonic TX-L55ET5B / TX-L55ET5Y / TX-LR55ET5 Service Manual ▷ View online
Block Diagram (1/3)
TUNER DVB-T/T2/C
TU6705
IF2_P,N
4,5
IF2_P,N
SI_3.3V
SUB1.8V
10
6
SDA/SCL
8,9
38,37
DMD_ IIC1
TU_1.2V
SUB3.3V
IFAGC2
3
48
FE_XRST
7
29
FE_XRST
FE_XRST
IFAGC2
IFAGC2
IF2_P,N
IC6900
[C1AB00003808]
DVB-T/T2/C DEM
DMD_IIC0
IC8000
[MN2WS0250E]
LD
A
4
FE_XRST
K7
IFAGC1
11
IFAGC1
DMD_ IIC1
DMD_IIC0
TUNER I2C
IFAGC1
IF1_P,N
12,13
IF1_P,N
U5
IF1_P,N
EA2, AF2
HS1BCLKIN
HS1SYNCIN
HSVALIN
HS1DIN[0;7]
Parallel TS
3,4,5,8,9,12
13,14,15,16,17
BE COMMON I/O
Audio Output
Video Input
Audio 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
AA11
AE12
AE13
AD13
AE12
AE13
AD13
V1
R3
G3
B3
JK3005
PC
1
2
3
2
3
PC-R
PC-G
PC-B
PC-G
PC-B
AD11
AE11
AF11
AE11
AF11
R2
G2
B2
G2
B2
AE9
AE10
AD10
AE10
AD10
R1
G1
B1
B1
V1
R3
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
R2
G2
B2
R1
G1
B1
G2
B2
R1
G1
B1
VOUT
VOUT
AC11
Q3051
Q3052
Q3053
LIN1_RP
LIN1_LP
LIN1_LP
LIN1_RP
LIN1_LP
LIN1_LP
LIN1_RP
LIN1_LP
AA5
AA4
AA4
LIN3_RP
LIN3_LP
LIN3_RP
LIN3_LP
AD4
AF5
AF5
HP1_L
JK3051
HP1_R
HP-OUT
AD7
AF8
AF8
LO2_L
LO2_R
IC3052
Audio Amp
1
2
6
7
LO2_L
LO2_R
LO2_R
LO2_L
LO2_R
AE6
AD6
AD6
HP1_L
HP1_R
HP1_L
HP1_R
HP1_R
Digital
Audio
Out
D3006
V7
IECOUT
AB23
ARCOUT
IECOUT
IECOUT
SUB3.3V
JK4700A
HDMI1
HPD2
5VDET2
5VDET2
DDCSDA2
DDCSCL2
CEC
DDCSCL2
CEC
RX2
JK4701
HDMI2
HPD1
5VDET1
DDCSDA1
DDCSCL1
DDCSDA1
DDCSCL1
CEC
RX1
JK4702
HDMI3
HPD0
5VDET0
5VDET0
DDCSDA4
DDCSCL4
DDCSCL4
CEC
RX2
JK4703A
HDMI4
HPD3
5VDET3
DDCSDA3
DDCSCL3
5VDET3
DDCSDA3
DDCSCL3
CEC
RX1
IC4700
HDMI SWITCH
(C1AB00003469)
RX2
RX1
DDCSDA4
DDCSCL4
DDCSCL4
DDCSDA3
DDCSCL3
DDCSCL3
53,54,56,57
59,60,62,63
51
52
38,39,41,42
44,45,47,48
36
37
17,18,20,21
23,24,26,27
HDMI I/F
RX2
RX1
RX0
RX0
DDCSDA0
DDCSCL0
30
29
ARCOUT
STM
DDCSDA0
DDCSCL0
HPD2
HPD1
HPD0
HPD3
5VDET2
5VDET1
5VDET0
5VDET3
DDCSDA0
DDCSCL0
DDCSDA1
DDCSCL1
DDCSDA2
DDCSCL2
DDCSDA3
DDCSCL3
DDCSDA4
DDCSCL4
CEC
HDMI I/F
HDMI_SW3.3V
6,12,19,25
40,46,55,61
JK8450
USB2
IC8453
SW
6
1
3
4
USB5V
USB2VBUS
USB2OD
USB2DP
USB2DN
JK8451
USB1
IC8454
SW
6
1
3
4
USB5V
USB1VBUS
USB1OD
USB1DP
USB1DN
JK8452
USB0
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
34 35
X6900
ETHERNET
JK8600
9
T8600
1
2
3
6
11
14
16
8
6
3
1
TX+
TX-
RX+
RX-
IC8600
[C1CB00003736]
PHYSICAL LAYER
TRANSCEIVER
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
3.3V
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
IC8200
DDR3
SUB1.5V
IC8201
DDR3
SUB1.5V
DDR3 I/F
IC8900
NAND FLASH
SUB3.3V
NAND FLASH I/F
IC8902
EEPROM LD
A
4
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
SP_L
SP_R
11,12
14,15
26,27 29,30
L-
L+
R+
R-
K6
L6
L7
M7
AUDIO OUT
16V
DMD_ IIC1
SOUND_SOS
STM
AD19
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
4
PWM_A_IN
BL_PWMA
3
PWM_A_IN
F5
3
7
9-10
12
A02
TO P2
4
6
10
9
13
1,3,5
16V
TV_SUB_ON
STB5.8V
BL_PWMA
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
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
2
7,8
16V
USB5V
IC5780
REG
2
3
16V
TU_1.2V
8
6
16V
SUB1.1V
8
6
16V
SUB1.5V
R4076
TCON2.5V
SUB3.3V
IC8702
REG
3
4,2
SUB3.3V
SUB1.8V
IC8404
REG
1
5
SUB5V
SUB_CI_5V
IC8706
REG
4,1
5
SUB5V
HDMI_SW3.3V
HDMI3.3V
A15
RXA0N,P; RXB0N,P
RXC0N,P; RXCLK0N,P
RXD0N,P; RXE0N,P
RXA1N,P; RXB1N,P
RXC1N,P; RXCLK1N,P
RXD1N,P;RXE1N,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
U1,T3,T1,T2,R3,R2,P3,P2,P1,N3,N1,N2
L3,L2,L1,K3,K1,K2,J3,J2,H3,H2,H1,G1
PNL12V
1-9
54,55
BE I2C
SDA,SCL
SER
VICE
50
51
52
56
58
PANEL_TEST_ON
FRC_DONE
FRC_XRST
OEBLK
3D_ON
FRC_XRST
P
ANEL_TEST_ON
FRC_DONE
3D_ON
F6
K5
D5
BE COMMON I/O
SDA,SCL
TO TC1
1
OEBLK
VJ8660
VDDSD18V33V
SUB3.3V
R8637
WOL3.3V
SUB3.3V
STB3.3V
STB1.1V
SUB1.1V
SUB1.8V
SUB1.5V
SUB3.3V
TCON2.5V
VDDSD18V33V
WOL3.3V
HDMI3.3V
11-13
SUB5V
A-BOARD
[EXCHANGE UNIT]
SER
VICE
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
SUB3.3V
22
3
4
SUB5V
3.3V
IC8660
REG
16V
16V
SUB9V
8
25
Block Diagram (2/3)
TC11
52-60
TO
A15
48-50
3
5
5
6
7
7
9
10
11
PANEL_TEST_ON
FRC_DONE
FRC_XRST
OEBLK
3D_ON
SCL
SDA
SDA
IC9100
Image Processor
(C1AB00003869)
208
200
198
183
200
198
183
202
14,15,16,17
18,19,21,22
24,25,26,27
29,30,31,32
33,34,36,37
39,40,41,42
RXA0N,P; RXB0N,P
RXC0N,P; RXCLK0N,P
RXD0N,P; RXE0N,P
RXA1N,P; RXB1N,P
RXC1N,P; RXCLK1N,P
RXD1N,P;RXE1N,P
1,2,3,4
5,6,10,11
12,13,14,15
16,17,18,19
20,21,25,26
27,28,29,30
PNL12V
SUB5V
IC9301
REG
8
6
PNL12V
FRC1.0V
IC9302
REG
8
6
PNL12V
FRC_1.8V
IC9351
REG
5
1
SUB5V
PNL3.3V
IC9303
REG
5
1
FRC_2.5V
IC9300
Voltage IC
2
1
DCDCEN
PNL12V
FRC1.0V
FRC_1.8V
PNL3.3V
FRC_2.5V
1
1
4
1 2 3 5
IC9350
SPI FLASH
6
SPICS0
SPIRXD
SPICS1
SPITXD
SPICLK
186
189
190
188
187
PNL3.3V
8
IC9250
DDR
FRC_1.8V
TC01
TC02
PNL12V
1-4
3D_ON
51
8
PANEL_TEST_ON
LVDS TX CHB EVEN
27,28,29,30
32,33,35,36
37,38,39,40
157,158,159,160
161,162,164,165
166,167,168,169
11,12,13,14
16,17,19,20
21,22,23,24
142,143,144,145
146,147,149,150
151,152,153,154
LVDS TX CHB ODD
LVDS TX CHA EVEN
19,20,21,22
24,25,27,28
29,30,31,32
128,129,130,131
132,133,135,136
137,138,139,140
3,4,5,6
8,9,11,12
13,14,15,16
113,114,115,116
117,118,120,121
122,123,124,125
LVDS TX CHA ODD
FR-BOARD
TO
A15
TO P
ANEL
TO P
ANEL
X9100
173
172
K-BOARD
K10
2
3
4
5
7
3
4
5
7
1
STBY 3.3V
SUB3.3V
RM2800
3
1
VCC
OUT
SN2800
AI
3
1
VCC
OUT
D2800A
R G
T
O A10
REMOTE
AI
G LED
R LED
SUB3.3V
AI
STBY 3.3V
STBY 3.3V
R LED
G LED
REMOTE
DCDCEN
DCDCEN
DCDCEN
SUB5V
26
Block Diagram (3/3)
Li
ne
Fi
lte
r
LF7104
F7101
3
2
4
1
Li
ne
Fi
lte
r
LF7103
3
2
4
1
CF7101
~
~
+
-
D7102
D7104
D7105
IC7301
14
VS
9
VW
Resonant Controller
HOT
COLD
PC7301
Photo coupler
1
VH
4
FB
5VS
P2
2
3
TO A02
10
11
13
BL_SOS
BL_ON
PWM1
P4
3
2
1
BL_SOS
BL_ON
PWM1
8
7
TO PANEL
24V
24V
7
TV_SUB_ON
POWER_ON
8
5
1
9
KEY1
IC7401
JK7101
MAIN INPUT
Li
ne
Fi
lte
r
LF7105
3
2
4
1
T7201
4
2
IC7201
PFC
Control IC
7
OUT
8
VCC
Q7201
Q7202
6
8
14
T7301
15
3
PC7303
Photo coupler
PC7302
Photo coupler
Q7403
IC7502
Reg
5
Vin
1
Vout
24V
16V
TV_SUB_ON
16V
16V
16V
CF7102
D7305
6
REF
10
VCC
2
D7304
18
13
10
D7402
D7401
D7407
D7408
D7409
Q7402
5VS
D7405
24V
9
10
11
KEY1
POWER_ON
TO GK4
GK-BOARD
GK4
SW2855
SW2854
SW2853
SW2852
SW2851
KEY1
SW2857
P-BOARD
3
2
TO P4
POWER_ON
3
CE
27
Parts Location
NOTE:
The numbers on the exploded view below refer to the exploded view section of the Replacement Parts List.
36
18
25
14
9
31
13
12
1
11
3
5
35
(UK)
(CONTINENTAL)
TEWF387
TEWF383
TEWF387
TEWF386
TMK0EX157
TMK0EX157
TMK0EA321
TMK0EA322
TMK0EA331
TEWF384
TEWF385
28
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