Panasonic TX-L42E30E / TX-LF42E30 / TX-LR42E30 Service Manual ▷ View online
Chassis Board Layout
Location of Lead Wiring
To find the Part Number of required wire in Replacement Parts List click on the wire name in red box.
Board Name
Function
A-Board
AV Terminal, HDMI, USB, Digital Audio Out, TV tuner, SD Card, CI slot, PC,
Ethernet, Peaks_LDA3, AV Switch, HDMI Switch, Speaker out,
EEPROM, Flash Memory, DDR SDRAM
KA-Board
Remote Receiver, Power and Timer LED, C.A.T.S
P-Board
Main Input, Power Supply, Key control, Power switch
LD-Board LED
driver
P-BOARD
KA-BOARD
A-BOARD
LD-BOARD
A02
SP_L
A10
A12
KA10
A15
SP_R
LD2
A10-KA10 WIRE
P4-LD4 WIRE
A12-SPK WIRE
LD4
P1
P2
P4
A02-P2 WIRE
LVDS FFC
9
Technical Description
Specification of KEY for CI Plus, DTCP-IP, One-to-One and Widevine
General information:
General information:
1. EEPROM (IC8902) for spare parts has the seed of KEY for each.
2. The final KEY data will be generated by LDA3 IC (IC8000) when SELF CHECK was done and are stored in both LDA3 IC
(IC8000) and EEPROM (IC8902).
Three KEY are not generated for all models.
The necessary KEY are only generated and stored depend on the feature of models.
2. The final KEY data will be generated by LDA3 IC (IC8000) when SELF CHECK was done and are stored in both LDA3 IC
(IC8000) and EEPROM (IC8902).
Three KEY are not generated for all models.
The necessary KEY are only generated and stored depend on the feature of models.
Replacement of ICs:
When LDA3 IC (IC8000) is replaced, EEPROM (IC8902) should be also replaced with new one the same time.
When EEPROM (IC8902) is replaced, LDA3 IC (IC8000) is not necessary to be replaced the same time.
After the replacement of IC, SELF CHECK should be done to generate the final KEY data.
How to SELF CHECK: While pressing [VOLUME ( - )] button on the main unit, press the STATUS button on the remote
control for more than 3 seconds.
TV will be forced to the factory shipment setting after this SELF CHECK.
When EEPROM (IC8902) is replaced, LDA3 IC (IC8000) is not necessary to be replaced the same time.
After the replacement of IC, SELF CHECK should be done to generate the final KEY data.
How to SELF CHECK: While pressing [VOLUME ( - )] button on the main unit, press the STATUS button on the remote
control for more than 3 seconds.
TV will be forced to the factory shipment setting after this SELF CHECK.
Model and Keys:
Keys
Model No.
CI PLUS
DTCP-IP
One-to-One
(for USB Rec.)
Widevine
TX-L42E30E Yes Yes Yes Yes
TX-LF42E30 Yes Yes Yes Yes
TX-LR42E30 None
TX-LF42E30 Yes Yes Yes Yes
TX-LR42E30 None
None
None
Yes
10
Setting Inspection
Voltage Confirmation
A board
Description Test
point Voltage
SUB1.2V
TP8100
1.24V - 1.31V
SUB 1.5 V
TP8101
1.47V - 1.55V
SUB3.3V
TP5400
3.17V – 3.43V
SUB5V
TP5420
4.94V – 5.31V
USB5V
TP5440
4.94V - 5.31V
PNL12V
TP4056
11.5 – 12.5V
P board
Description Test
point Voltage*
Voltage**
24V (PANEL)
TP7514
<1V
24V ± 1.2V
16V TP7503
<1V
16.1V ± 0.7V
TUNER5V8
TP7502
5.7V ± 0.3V
5.7V ± 0.3V
PFC TP7203
<340V
400V ± 15V
* Connect AC 230V to P1 connector
** Connect DC 2.5V to TV_SUB_ON P2 connector – pin 8 /TP7505/ from voltage divider.
11
Self Check
Self-check is used to automatically check the bus lines and hexadecimal code of the TV set. To enter Self-Check mode, keep
pressing the down (-/v) button on the TV set and press the STATUS button on the remote control. To exit Self Check,
switch off the TV set at the power button.
* Displayed for E, LF model only
pressing the down (-/v) button on the TV set and press the STATUS button on the remote control. To exit Self Check,
switch off the TV set at the power button.
* Displayed for E, LF model only
Display
Ref.
No. Description P.C.B.
TUN TU4801
TUNER
A-Board
STBY IC8000
Peaks-LDA3
A-Board
MEM1 IC8901
STM
EEPROM
A-Board
MEM2
IC8902
EEPROM PEAKS LDA3
A-Board
AVSW IC3001 AUDIO
VIDEO SWITCH
A-Board
LAN IC8601 ETHERNET
IF A-Board
ZWEI
TC-unit
TC-unit on panel
TC-unit
ID*
IC8902
(CI+) , DTCP-IP, One-to-One
A-Board
ID2 IC8902
WIDEVINE A-Board
HDMI SW
IC4700
HDMI SWITCH
A-Board
If the CCU ports have been checked and found to be incorrect or not located then " - - " will appear in place of "O.K.".
TX-L42E30E
42FHD Panasonic 2011LCD
Self Check Complete
TUN
O.K.
STBY O.K.
MEM1 O.K.
MEM2 O.K..
AVSW O.K.
LAN O.K.
ZWEI O.K.
ID O.K.
ID2 O.K.
HDMI-SW O.K.
MEM1 O.K.
MEM2 O.K..
AVSW O.K.
LAN O.K.
ZWEI O.K.
ID O.K.
ID2 O.K.
HDMI-SW O.K.
PEAKS-SOFT 1.110
PEAKS-EEP 01.00.0003
LSI-PACKAGE 0.914
LSI-RELEASE 1.02
STBY-SOFT 1.00.00
STBY-EEP 1.00.0500
STBY-ROMCORR 0.00.00
ZWEI-SOFT 15000100
PEAKS-EEP 01.00.0003
LSI-PACKAGE 0.914
LSI-RELEASE 1.02
STBY-SOFT 1.00.00
STBY-EEP 1.00.0500
STBY-ROMCORR 0.00.00
ZWEI-SOFT 15000100
SUM 9048
MODEL ID 08
03167100
00000020
TX-LF42E30
42FHD Panasonic 2011LCD
Self Check Complete
TUN
O.K.
STBY O.K.
MEM1 O.K.
MEM2 O.K..
AVSW O.K.
LAN O.K.
ZWEI O.K.
ID O.K.
ID2 O.K.
HDMI-SW O.K.
MEM1 O.K.
MEM2 O.K..
AVSW O.K.
LAN O.K.
ZWEI O.K.
ID O.K.
ID2 O.K.
HDMI-SW O.K.
PEAKS-SOFT 1.110
PEAKS-EEP 01.00.0003
LSI-PACKAGE 0.914
LSI-RELEASE 1.02
STBY-SOFT 1.00.00
STBY-EEP 1.00.0500
STBY-ROMCORR 0.00.00
ZWEI-SOFT 15000100
PEAKS-EEP 01.00.0003
LSI-PACKAGE 0.914
LSI-RELEASE 1.02
STBY-SOFT 1.00.00
STBY-EEP 1.00.0500
STBY-ROMCORR 0.00.00
ZWEI-SOFT 15000100
SUM 9048
MODEL ID 08
03167100
00000020
TX-LR42E30
42FHD Panasonic 2011LCD
Self Check Complete
TUN
O.K.
STBY O.K.
MEM1 O.K.
MEM2 O.K..
AVSW O.K.
LAN O.K.
ZWEI O.K.
ID2 O.K.
HDMI-SW O.K.
MEM1 O.K.
MEM2 O.K..
AVSW O.K.
LAN O.K.
ZWEI O.K.
ID2 O.K.
HDMI-SW O.K.
PEAKS-SOFT 1.110
PEAKS-EEP 01.00.0022
LSI-PACKAGE 0.914
LSI-RELEASE 1.02
STBY-SOFT 1.00.00
STBY-EEP 1.00.0500
STBY-ROMCORR 0.00.00
ZWEI-SOFT 15000100
PEAKS-EEP 01.00.0022
LSI-PACKAGE 0.914
LSI-RELEASE 1.02
STBY-SOFT 1.00.00
STBY-EEP 1.00.0500
STBY-ROMCORR 0.00.00
ZWEI-SOFT 15000100
SUM 8F7C
MODEL ID 08
031B7100
00000020
12
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