Panasonic TX-LR42E5 Service Manual ▷ View online
TX-LR42E5
29
9 Block Diagram
9.1.
Main Block Diagram
(L
ED
:1
T
IME
)
(LE D :9 T IM E S )
(LE D :7 T IM E S )
PNL12V
A12
BL_PWM
HDMI1
AMP
SUB_ON
A02
DCDC
BL_ON
SUB9V
LCD PANEL
P15V
AC
DETECT
LAN DATA
CONTROL PANEL KEY
SUB3.3V
SUB1.8V
HDMI3.3V
USB I/F
KEY1
PANEL12V
SUB1.8V
LED BACK LIGHT
STB3.3V
USB2.0_IF
LLC
CONVERTER
SUB3.3V
5VS
ANALOG-ASIC
SLOT
LIVE
HDMI4
OPTICAL
DCDC
COMP
BL_ON
TMDS DATA
SUB5V
BL_SOS
STB3.3V
SIF_OUT
DCDC
K10
ETHER PHY
DCDC
P16V
SD IF
REG
KEY1
STB1.1V
R/G/B/H/V
HDMI MUX
INPUT
FILTER
DDR3
SUB3.3V SENSE
STB3.3V
TMDS DATA
C.A.T.S. SENSOR
P15V
SUB1.5V
SUB5V
SUB1.1V
HDMI3.3V
OVP DET
LVDS TX
IECOUT
SOUND SOS
SUB ON
SD CARD
SUB_AI_3.3V
KEY1
HDMI2
REMOTE IN
TMDS DATA
GK4
A10
STB5V
SUB5V
HDMI
RX
P15V
JK7202
SPEAKER(R)
STB3.3V
A18
USB2
ASDOUT0
ARC OUT
ARC
SUB1.5V
SUB3.3V
A
R
REMOTE RECEIVER
K
DMD
SUB3.3V
USB1
Y/PB/PR
L/R
L/R
SUB1.5V
FRC
SPI
SUB3.3V
POWER LED
KEY3
SUB5V
BL_SOS
NEUTRAL
USB5V
DCDC
PANEL
STB1.2V
L
BL_ON
USB5V
STB5V
TMDS DATA
AUDIO
DCDC
IFD_OUT
KEY3
SUB3.3V
USB5V
SD CARD DATA
SUB3.3V
USB2.0_IF
HDMI3
DCDC
SUB_ON
LED/RM/CATS
LCD DRIVER
AC CORD
Peaks
LD4
DCDC
C.A.T.S. SENSOR
PC
24V
GK
STB5V
SWITCH
DDR
16V
POWER
P
AUDIO
BL_PWM
BL_PWM
SUB1.1V
PEAKS_EEPROM
POWER LED(R)
SUB_ON
PFC
OUT
KEY3(POWER ON)
MAIN
NAND
FLASH
PNL12V
P2
SPEAKER(L)
P4
NAND
IF
TUNER
SUB1.1V
POWER SW
BL_SOS
ETHERNET
(LED:1 TIME)
(LED:9 TIMES)
(LED:7 TIMES)
(L
ED
:1
T
IME
)
(LE D :9 T IM E S )
(LE D :7 T IM E S )
TX-LR42E5
30
9.2.
Detailed Block Diagram (1/2)
H O T
C O LD
PANEL_VCC_ON
BL_PWM
BL_ON
BL_SOS
KEY3
KEY1
BL_ON
BL_SOS
KEY3
KEY1
BL_ON
BL_SOS
KEY3
SUB_ON
KEY1
USB5V
SUB5V
5.8VS
D5187
P15V
D5188
SUB3.3V
D5179
PNL12V
SW2857
D5172
P15V
D5173
D5178
D7407
**
F7101
D7408,9
PA7401
PA7403
PA7402
D7401,2
P15V
5.8VS
IC5420
OVP
A
PANEL12V
POWER SW
IC5300
SW2851-2855
LVDS DATA
SUB5V
SUB3.3V
1
A18
LCD PANEL
4
IC5440
GK4
+5V
LED DRIVE
2
3
CONTROL PANEL KEY
6
2
40
3
5
+3.3V
USB5V
DCDCEN
+5V
MAIN
LCD
DRIVER
PNL12V
1
4
SWITCH
GK
IC5400
7
11
+12V
BL_PWM
44
PHOTO
COUPLER
POWER
BL_ON
1
10
1
KEY1
IC7502
STB6V
9
LLC
CONVERTER
T7301
2
P4
8
SUB_ON
+16V
KEY3(POWER ON)
ERROR
DETCT
BL_SOS
8
JK7202
5.8VS
P
3
PC7303
3 10
PHOTO
COUPLER
11
AC CORD
Q7402
Q7403
+16V
RECTIFIER
+16V
LINE
FILTER
D7106
AC
DETECT
IC7401
2
PC7301
+24V
+24V
+24V
7
LF7101,2
CF7101,2
9
11
PHOTO
COUPLER
5
IC7201,
T7202,
Q7201
7
P2
IC7301,
Q7301,
Q7302
PFC
PC7302
2
+6V
4
3
5
15
9
13
1
6
2
A02
HOT
COLD
H O T
C O LD
TX-LR42E5
31
9.3.
Detailed Block Diagram (2/2)
VCC
GND
OUT
(L
E
D
:9
T
IM
E
S
)
(L
E
D
:1
T
IM
E
)
(LE D :7 T IM E S )
P_PWMA
BL_ON
R_LED_LED
STB_RST
BL_SOS
AI_SENSOR
SW_OFF_DET
REMOTE
REMOTE
KEY1
R_LED_ON
AI_SENSOR
PANEL_VCC_ON
RM2800
1
2
3
5.8VS
SUB5V
SUB3.3V
STB5V
X8600
SUB3.3V
STB3.3V
D5188
SUB1.8V
D2800B
SUB5V
USB5V
SN2800
SUB3.3V
SUB3.3V
P15V
USB5V
P15V
D5187
D5191
+3.3V
IC8200
2
LATCH
+1.8V
R(-)
AUDIO AMP
Y
1
PWM
RF
A10
R
POWER_DET
IIC0
HDMI3
IC8900
DDR I/F
R_LED_ON
IC8706
HDMI2
USB1VBUS
TMDS DATA/ CLOCK
ANALOG-ASIC
SUB3.3V
HDMI_3.3V
SUB ON
SBI0
SBO0
+5V
IC8702
REMOTE
RECEIVER
TMDS DATA/ CLOCK
4
6
3.3V
Rx0
AGC1/2
PB
IC4700
L
CEC PUL
1
SD CARD I/F
A
+5V
AI_SENSOR
LVDS I/F
VDDSD1.8V3.3V
HDMI_5V_DET2
R(+)
A
DDC IIC0
JK3005B
OVP DET
DCDCEN
PEAKS
EEPROM
7
1
Rx1
HDMI_CEC
RX1
7
OVP
SUB_AI_3.3V
DMD_
IIC0
+1.8V
IIC0
STB1.1V
DMD_
IIC0
DIGITAL
AUDIO OUT
ARC_OUT
C.A.T.S.
SENSOR
SBI0
SBO0
5
IIC1
AVDDH3.3V
2
IIC1
RX2
HDMI MUX
PC-B
HDMI_CEC
DDC IIC2
15V
DDC0
STBRST
RGB/YPbPr/CVBS/YC
HS,VS
POWER LED/REMOTE RECEIVER/C.A.T.S. SENSOR
DDC3_IIC
6
IC8453
IIC0
IIC1
STM_IIC
SBO0/SBI0
SUB1.5V
D3006
JK8600A
+1.1V
DDC IIC3
ETHER PHY
SW_OFF_DET
SD CARD
IEC_OUT
IIC3
TMDS DATA/ CLOCK
USB1
DDC2
HDMI_CEC
STB3.3V
HDMI1
JK4701A
STB_RESET
DDC1
COMPONENT
SW_OFF_DET
TU6706
K
OVP
TUNER
SEL1
SUB3.3V
5
IC8454
PANEL_VCC_ON
REMOTE
IC8201
+5V
SUB3.3V_SENSE
+1.5V
USB2
HDMI4
IIC3
JK4700A
+3.3V
KEY1
HDMI_5V_DET0
DCDC CTL
NAND I/F
LAN I/F
5VS
DDC IIC1
9
3
+1.1V
SW_OFF_DET
JK4703A
SUB1.1V
CN8660
CN0100
AGC1/2
IC8101
RM_IN
BL_SOS
3
+1.5V
DDR3
IFD1/2
4
5
PC IN
L(-)
HDMI_5V_DET1
IC8000
IFD1/2
HDMI_CEC
POWER LED
25MHz
SPEAKER_R
BL_PWM
7
IC5000
IC8902
PWM_A_IN
4
STB3.3V
P_PWMA
A12
SEL2
LDA4
USB I/F
DDC1_IIC
PWM_A_OUT
PC-V
CPU BUS
3
IC4900
FOR
FACTORY
USE
K10
PC-G
BL_ON
HDMI_5V_DET3
STB3.3V
CEC
STB_RST
STB1.1V
L(+)
DMC_IIC0
JK3001
SOUND SOS
Rx2
SUB5V
FE_XRST
SOS
TMDS DATA/CLOCK
IC8100
+5V
USB2VBUS
MAIN
PWM
JK8450
PANEL_PWM
P15V
SUB ON
3
POWER_LED_ON
FE_XRST
PC-H
IC8600
IIC3
NAND
FLASH
SD DATA
L/R
JK8451
MAIN
PR
CATS_EYE
+5V
ARC_OUT
SPEAKER_L
SUB1.8V
JK4702A
PC-R
ETHERNET
(LED:9 TIMES)
(LED:1 TIME)
(LED:7 TIMES)
(L
E
D
:9
T
IM
E
S
)
(L
E
D
:1
T
IM
E
)
(LE D :7 T IM E S )
TX-LR42E5
32
10 Wiring Connection Diagram
10.1. Wire Dressing
Do wire dressing follow below spec:
No
Part Num
Description
Qty
1
T4FP1505J
PET TAPE (0.07X6)
0.42
MT
2
TMME268
CLAMPER (BTM METAL1)
2
PC
Cables
Clampers / Tapes
A
B
C
D
E
F
G
H
P4-LD/GK4
P2 - A02
SP (R) - A12
SP (L) - A12
A10 - K10
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