Panasonic TH-80LF50ER Service Manual ▷ View online
IC4501
[C1AB00003627]
AUDIO VIDEO
PROCESOR
Block Diagram (1/3)
Y,PB,PR
JK4006
AV2_PR/B
AV2_PB/R
AV2_Y/G
AV2_PB/R
AV2_Y/G
AV3_CVBS
V
A/V INPUT
ANALOG
K3 L5 J1
K2
AV2_PR/B
AV2_PB/R
AV2_Y/G
AV3_CVBS
JK4004
HDMI1
HDMI1_RXC +/-
HDMI1_RX0+/-
HDMI1_RX0+/-
HDMI1_SDA
HDMI1_SCL
HDMI1_SCL
HDMI1_5V
HDMI1_RX1+/-
HDMI1_RX2+/-
HDMI1_RX2+/-
IC4701
C1AB00003851
HDMI SWITCH
HDMI1_RXC +/-
HDMI1_RX0+/-
HDMI1_SDA
HDMI1_SCL
HDMI1_RX1+/-
HDMI1_RX2+/-
21,22
23,24
25,26
27,28
57
58
JK4003
DVI OUT
PWR5V
DVIOUT_SDA
DVIOUT_SCL
DVIOUT_SCL
DVIOUT_C+/-
97
98
98
106,107
DVIOUT_0+/-
104,105
DVIOUT_1+/-
102,103
DVIOUT_2+/-
100,101
JK4002
DVI IN
PWR5V
DVI_SDA
DVI_SCL
DVI_SCL
TMDS_RXC+/-
TMDS_RX0+/-
TMDS_RX1+/-
TMDS_RX2+/-
TMDS_RX0+/-
TMDS_RX1+/-
TMDS_RX2+/-
31-32
33-34
35-36
37-38
33-34
35-36
37-38
53
54
54
JK4001
PC
VGA_R/PR
VGA_G/Y
VGA_B/PB
VGA_G/Y
VGA_B/PB
VGA_5V
IC4702
C3EBDC000067
DDC EEPROM
5
6
8
6
8
EEP5V_VGA
L4, H4
A/V INPUT
ANALOG
VGA_R/PR
F1, L2
VGA_G/Y
M2, G3
VGA_B/PB
SDA
SCL
1
2
3
9
2
3
9
12
15
15
7
E18
EDID WP
117,116
115,114
113,112
111,110
115,114
113,112
111,110
HDMI INPUT
B8, A8
B7, A7
B6, A6
B5, A5
B7, A7
B6, A6
B5, A5
HDMI_RXC +/-
HDMI_RX0 +/-
HDMI_RX1 +/-
HDMI_RX2 +/-
HDMI_RX0 +/-
HDMI_RX1 +/-
HDMI_RX2 +/-
PWR5V
MICOM3.3V
HDMI2-5V
HDMI1-5V
DVI_5V
H1.2V
H3.3V
D3.3V
3V_TXD3
DATA
D17, E17
4
D3.3V
D1.2V
AUD3.3V
AUD1.2V
DDR1.8V
Y11
A40
4
5
6
7
5
6
7
14
SCL1
SDA1
SCL2
SDA2
SDA1
SCL2
SDA2
STB5V
SER
VICE
1
LAN_EEP_WP
2
IIC_CONT
Y8
IIC_CONT
8
9
9
SCL3
SDA3
SDA3
12
IIC_INT
IIC_INT
AA8
B16
AA1
1
C16
SDA1
SCL1
SDA2
SCL2
A5
9
11
13
13
14
TO P5/P6
1-2
5-6
5-6
15
PWR24V
PWR5V
P15V_24V_EN
MAIN_EN
Q4117
SWITCH1
P5V_EN
A4
8
9
9
10
11
11
TO P4
1-3
7
PWR15V
BL_SOS
P24V_EN
DCR_VBR
Q4030
PWM1
BL_ON
LINE_OFF
AB1
1
PWM1
AA12
BL_ON
LINE_OFF
AB12
Q4105
A22
A22 TO V22
2,4,6
1
5
STB5V
STB5V_SW
KEY0
SWITCH1
KEY0
AB6
A13
A13 TO DS13
1-5
11
PWR15V
STB5V_SW
ETHERNET
JK2701
12
T2701
1
2
3
6
11
8
7
1
2
5
6
TX+
TX-
RX+
RX-
IC2701
[C1CB00002896]
Physical Layer
Transceiver
7
5
6
7
LAN3.3V
3,17
31
32
X2701
TX+
TX-
RX+
RX-
IC2702
C0EBY0000664
RESET
2
4
LAN3.3V
RESET
32
22-27
11,12
13-16
18-20
28,29
ETXD[0-3],EN,CK
EMDC, EMDI0
ERXD[0-3],DV,CK,ER
ECOL, ECRS
IC2704
[C1CB00003205]
Controller IC
Network
14
13
11
12
30-34,37
46,47
38-44
28,29
1
RESET
95
96
IC2705
SPI-FLASH
1
2
3
6
5
50
SPI_SI
SPI_S0
SPI_CS
SPI_SCK
WP
LAN3.3V
15,27,45,66,84
IC2706
EEPROM
(C3EBDC000067)
7
8
6
LAN3.3V
LAN3.3V
5
24
25
SCL3
SDA3
SCL3
SDA3
LAN_EEP_WP
IC2707
Logic IC
(C0JBAZ000851)
14
3
12
TXD_LAN
RXD_LAN
17
16
STB3.3V_SW
9
6
TXD_PC
RXD_PC
TXD0
RXD0
IC4505
SPI-FLASH
1
2
5
6
D3.3V
8
HDMI1_SCL
IC4762
Logic IC
2
9
5
12
1,4,10,13
6
11
8
3
IC4761
Logic IC
2
5
9
12
1,4,10,13
11
6
3
8
3
FLASH_WP_SUB SPI_SW
Q4764
Q4761
SC_FL
5V_CLK2
SPI_D0
Y10
SPI_CLK
AA10
SPI_DI SPI_CSn
W11
AB10
D3.3V
D3.3V
IC4810
Logic IC
5 1
6
2
5V_RXD2
5V_TXD2
STB_5V_SW
5V_RXD2
5V_TXD2
5V_RXD2_TU
5V_TXD2_TU
A7
9
10
A7 TO HX7
7
8
1-4
6
A8
6
8
9
A8 TO HX8
4
5
11
1
2
D_CHAIN1-4
RC,IR
D3.3V
STB5V_SW
LED_RED
LED_GREEN
LIGH DET
12
PC_DVI_R
PC_DVI_L
CVBS_R
CVBS_L
CMPNT_R
CMPNT_L
SERVICE
1
STB5V
A48
13
14
H_SYNC
V_SYNC
H_SYNC
V_SYNC
N1 N2
IC4714
Logic IC
5
2
2
STB5V_SW
V_SYNC
4
PC_V_DET
IC4715
Logic IC
5
2
2
STB5V_SW
H_SYNC
4
PC_H_DET
A10
A10 T
O DS10
61
64,63
SLOT_SDA/SCL_1
IC4509
I2C BUS
SWITCH
(C0JBAS000215)
1,5
8
6,2
SL1_DET
DS_SOS
60
58
5V_RXD2_TU
57
55
54
REMOCON OUT
RTC_INT
5VNRST
52,51
15V_ON_OFF/LAN14V_ON_OFF
47
49
SLOT_R
SLOT_L
IC4201
ASIC
(C1AB00002899)
2,3,5
6,8,9
11,12,14
15,17,18
20,21,23
24,26,27
29,30,32
33
A_EE+/-,A_EA+/-,A_0A+/-
A_EB+/-,A_0B+/-,A_EC+/-
A_0C+/-,A_CLK+/-,A_0D+/-
A_0E+/-,A_ED+/-
CH_B
ASIC LVDS INPUT
ASIC3.3V
ASIC1.8V
AS3.3V
AS1.8V
D15
ASIC RESET
IC4004
CLOCK GEN
(C0JBAB000620)
D3.3V
7
C15
ASIC DIGIT
AL
OUTPUT1
R
G
B
G
B
SDA1, SCL1
R4 R3
IC4801
RENESAS MCU
(C2CBYY001315)
47
49
35
9
6
68
28,69
36
74
73
64
55
59
5V_TXD2_TU
AA7
SL1_DET
65
IIC_CONT
SL1_DET
IC4805
REMOCON
BUFFER
(C0JBAB000715)
1,2
STB5V_SW
5
4
IR
IR
STB5V
STB3.3V
5V, 9V
STB5V
LAN3.3V
DIGIT
AL
INPUT
R
G
B
G
B
45
2
3
MODE
RESET
MODE
RESET
2,5
11,8
52
51
51
RC
AA2
65,56 53,54
D_CHAIN1-4
11
3V_TXD3
IC4802
Logic IC
2,1
4
3V_RXD1
IC4803
Logic IC
2,1
4
3V_TXD1
3V_TXD1
3V_RXD1
A16
A17
75
P15V_24V_EN
25
MAIN_EN
72
P5V_EN
29
P24V_EN
71
LINE_OFF 5V_RXD2
48 46
5V_TXD2
CS_FL
5V_CLK2
UART_SW
1,13
4,10
38
UART_SW
52
TXD0
51
RXD0
LED_RED
27
LED_GREEN
26
3
D_CHAIN_DET
D_CHAIN_DET
44
SLOT_R
SLOT_L
SLOT_R
SLOT_L
14
15
AU_LINE_OUT_R
AU_LINE_OUT_L
IC2001
Audio Amp
(C0ABBA000168)
3
5
5
OUT_R
OUT_L
PC_DVI_R
PC_DVI_L
CVBS_R
CVBS_L
CMPNT_R
CMPNT_L
OUT_R
OUT_L
V1
U4
T1
T2
T3
T4
R1
R2
A1
28,29
30,31
32,33
35,36
TO P
ANEL
16,17
19,20
22,23
24,25
40,41
12,13
14,15
47-51
PANEL 12V
TCON_CONT
7,10
LVDS output
LVDS
TCON_CONT
AC1
1
IIC_CONT
24
HDMI1_RESET
77
HDMI_RESET
23
FLASH_WP_SUB
8
IC4502
DDR2
(C3ABSY000102)
IC4503
DDR2
(C3ABSY000102)
DDR1.8V
DDR1.8V
DATA I/0
DATA I/0
IC4506
TEMP SENSOR
(C1ZBZ0003775)
D3.3V
8
IC4504
EEPROM
(C3EBKC000014)
8 VCC
STB5V
IC4508
I2C BUS
SWITCH
(C0JBAS000215)
STB5V
8 VCC
1,5
SDA1
SCL1
6,2
6,5
EEP_SCL1
EEP_SDA1
Y11, AA11
91,92
SDA1, SCL1
19,20
SDA1, SCL1
D17,D16
SDA2, SCL2
1,2
SDA2, SCL2
7
8
PWR24V
PANEL12V
IC4904
DC/DC
1
3
PANEL12V
9V
IC4905
REG
9V
PWR5V
STB5V_SW
9V
9V
D3.3V
8
IC2002
RESET IC
(C0JBAA000377)
5
1
2
4
2
4
6
1
PWR5V
LAN3.3V
IC4806
REG
7,5
1
ASIC1.8V
LAN3.3V
IC2703
REG
PWR5V
Q4138
D5V
8
2
PWR5V
H3.3V
IC4601
DC/DC
8
2
PWR5V
H1.2V
IC4602
DC/DC
2
3
D5V
D3.3V
IC4901
DC/DC
2
3
D5V
D1.2V
IC4903
DC/DC
2
3
D5V
DDR1.8V
D3.3.V
5
STB5V_SW
5
STB5V
STB5V
STB5V
STB5V_SW
Q4117
Q4129
IC4902
DC/DC
4,1
3
3
STB5V_SW
STB3.3V_SW
IC4906
REG
D3.3V
AUD3.3V
L4903
D1.2V
AUD1.2V
L4943
13
D3.3V
AS3.3V
L4963
PWR5VV
DVI_5V
L4045
6
1
1
AS3.3V
AS1.8V
IC4202
DC/DC
IIC_INT
61
BL_SOS
78
PC_V_DET
2
PC_H_DET
3
LIGHT_DET
AC6
SPI_SW2
63
SPI_SW2
14
1
7
21
V1-BOARD
V11
2
4
5
6
8
4
5
6
8
1
STBY5V
3.3V
RM1501
VCC
OUT
SN1501
3
1
VCC
OUT
D1501
R
G
T
O HX1
1
BACKLIGHT
IR
GREEN
RED
RED
3.3V
STBY5V
RED
GREEN
HX-BOARD
HX1
1
HX8
TO
A8
7
5
4
3
4
5
6
12
2
8
9
11
Block Diagram (2/3)
Y
PB
PR
L
JK3501
AUDIO
IN
COMPONENT_L
CVBS_L
CVBS_L
CVBS_R
L1
L2
R1
R2
R1
R2
Y
PB
JK3506
AUDIO OUT
L
R
COMPONENT_R
PC_DVI_L
PC_DVI_R
PC_DVI_R
JK3505
R
L
IN
AUDIO
JK3504
DSR
DTR
TXD
RXD
DTR
TXD
RXD
CTS
RS-232C
OUT
8
6
4
3
2
IC3503
8
DOUT2
9
RIN2
16
RIN1
17
DOUT1
15
ROUT1
13
DIN1
12
DIN2
10
ROUT1
JK3503
DSR
DTR
TXD
RXD
DTR
TXD
RXD
RS-232C
IN
6
4
3
2
IC3504
8
DOUT2
9
RIN2
16
RIN1
17
DOUT1
15
ROUT1
13
DIN1
12
DIN2
10
ROUT1
IC3502
4
1
2
2
1
15
14
14
COMPONENT_L
CVBS_L
CVBS_R
COMPONENT_R
PC_DVI_L
PC_DVI_R
3
BACKLIGHT
GREEN
RED
IR
HX7
3
4
6
8
7
1
2
2
TO V11
TO
A7
9
10
8
1
3.3V
STB5V
19,20
STB5V
19,20
STB5V
STB5V
3.3V
IR
GPI04
GPI03
GPI03
GPI02
GPI01
TXD
RXD
5
STB5V
IR
BACKLIGHT
V2-BOARD
V22
5
1
STBY5V
SW1552 SW1553 SW1554
SW1555 SW1556
SW1551
T
O A22
KEY_IN
KEY CONTROL
AU_LINE_OUT_R
AU_LINE_OUT_L
AU_LINE_OUT_R
AU_LINE_OUT_L
22
DS-BOARD
DS2
TO
A13
SLOT 1
SLOT INPUT
B26
B30
B30
B35
A26
A28
A28
A3,B2,A4
B3,B6,B5
A5,A8,A7
A9,B8,A2
A10,B9
A12,B11
A13,B12
B14,A14
B15,A15
A22
B27
B31
B40,A40
B33
A19,B19
A21,B21
B17,A17
B28
B23
Q3002
Q3003
Q3102
Block Diagram (3/3)
B37,B38
DS10
TO
A10
36,37,39
40,42,43
45,46,48
49,51,52
54,55,57
58,60,61
63,64,66
67
DS13
1 - 5
11
4
20
22
15
10
8
14
18
17
11
12
12
9
F15V
SLOT15V
SLOT9V
A_EA+,-; A_OA+,-; A_EE+,-
A_EB+,-; A_OB+,-; A_EC+,-
A_OC+,-; A_CLK+,-;
A_OD+,-; A_ED+,-; A_OE+,-
A_EA+,-; A_OA+,-; A_EE+,-
A_EB+,-; A_OB+,-; A_EC+,-
A_OC+,-; A_CLK+,-; A_OD+,-
A_ED+,-; A_OE+,-
LAN14V
SLOT15V
STB5V_S
STB5V_S
RTC_INT
AH_SOS
DS_SOS
IC3000
REG
8
2
IN
SW
IC3120
RTC
8
VDD
5
INT
SLOT 2
DS3
A40
B40
A22
A19
B19
A21
B21
A17
B17
B31
LAN14V
STB5V_S
SLOT5V
SLOT9V
SLOT3.3V
AH_SOS
SLOT15V
SLOT5V
IC3001
REG
8
2
IN
SW
SLOT15V
SLOT3.3V
IC3002
REG
8
2
IN
SW
AUD_R_DS1
AUD_R_DS1
AUD_L_DS1
STB5V_S
SLOT5V
SLOT15V
LAN14V
SLOT15V
LAN14V
SRQ
AH_SLOT1_DET
AH_SOS
AJ_TXD11
AJ_RXD11
REMOCON_5V
RESET
IIC0
SRQ
AH_SLOT1_DET
DS_SOS
AJ_TXD11
AJ_RXD11
RTC_INT
REMOCON_5V
RESET
LAN14V_ON/OFF
LAN14V_ON/OFF
15V_ON/OFF
15V_ON/OFF
AUD_L_DS1
IIC3
5,6
IIC3
B25,B24
23
Parts Location
7
9
6
36
13
8
1
3
(UK)
(CONTINENTAL)
4
15
11
14
12
37
24
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