How to enter service mode – LED blinking timing
chart – Panasonic TX L55DT50E – LED-LCD TV
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.
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.
Power LED blinking timing chart
When abnormality has occurred the unit, the
protection circuit operates and reset to the stand by mode. At this time, the
defective block can be identified by number of blinking of the Power LED on the
front panel of the unit.
Service Mode Function
MPU controls the functions switching for each IICs through IIC bus in this chassis. The following setting and adjustment can be adjusted by remote control in Service Menu.
MPU controls the functions switching for each IICs through IIC bus in this chassis. The following setting and adjustment can be adjusted by remote control in Service Menu.
How to enter and Exit the SERVICE
While pressing (-/v) button on the TV unit, press [0] on the remote control for 3 times within 2 seconds.
To exit from Service mode, press the exit button on remote control.
While pressing (-/v) button on the TV unit, press [0] on the remote control for 3 times within 2 seconds.
To exit from Service mode, press the exit button on remote control.
Key CommandPress the 3/4 button to change the adjustment
values or function.Press the 1/2 button to step up/down through the
functions and adjustmentsPress the numerical button VOLUME (+/-) to change
of each option item.Press the OK button after each adjustment has been
made to store the required values.
Service Tool Mode: How to access
1. Select [SRV-TOOL] in Service Mode.
2. Press [OK] button on the remote control.
1. Select [SRV-TOOL] in Service Mode.
2. Press [OK] button on the remote control.
Display of SOS History
SOS History (Number of LED blinking) indication.
From left side; Last SOS, before Last, three occurrence before, 2nd occurrence after shipment, 1st occurrence after shipment.
This indication will be cleared by [Self/check indication and forced to factory shipment setting].
Power ON Time, On/Off
Note: To display TIME/COUNT menu, highlight position, then press MUTE for 3sec.
Time: Cumulative power on time, indicated hour: minute by decimal.
On/Off: Number of On/Off switching by decimal.
Note: This indication will not be cleared by either of the self-checks or any other command.
Exit
Disconnect the AC cord from wall outlet or switch off the power with [Power] button on the main unit.
SOS History (Number of LED blinking) indication.
From left side; Last SOS, before Last, three occurrence before, 2nd occurrence after shipment, 1st occurrence after shipment.
This indication will be cleared by [Self/check indication and forced to factory shipment setting].
Power ON Time, On/Off
Note: To display TIME/COUNT menu, highlight position, then press MUTE for 3sec.
Time: Cumulative power on time, indicated hour: minute by decimal.
On/Off: Number of On/Off switching by decimal.
Note: This indication will not be cleared by either of the self-checks or any other command.
Exit
Disconnect the AC cord from wall outlet or switch off the power with [Power] button on the main unit.
Hotel Mode
1. Purpose
Restrict a function for hotels.
2. Access command to the Hotel mode setup menu.
In order to display the Hotel mode setup menu, enter the following command (within 2 second).
[TV] : Vol.[Down] + [REMOTE] : AV (3 times)
Then, the Hotel mode setup menu is displayed.
1. Purpose
Restrict a function for hotels.
2. Access command to the Hotel mode setup menu.
In order to display the Hotel mode setup menu, enter the following command (within 2 second).
[TV] : Vol.[Down] + [REMOTE] : AV (3 times)
Then, the Hotel mode setup menu is displayed.
3. To exit the “Hotel mode” menu press the EXIT button
on remote control.
Data Copy from SD Card to TV set
1. Turn on the TV set.
2. Insert SD card with Data to SD slot. On-screen Display will be appeared according to the Data folder automatically.
3. Input a following password for (a) or (b) by using remote control.
(a) For Board replacement: 2771
(b) For Hotel: 4851
Data will be copied from SD card to TV set.
4. After the completion of copying to SD card, remove SD card from TV set.
(a) For Board replacement: Data will be deleted after copying (Limited one copy).
(b) For Hotel: Data will not be deleted and can be used for other TVs.
5. Turn off the TV set.
Note:
1. Depending on the failure of boards, function of Data for board replacement does not work.
2. This function can be effective among the same model numbers.
1. Turn on the TV set.
2. Insert SD card with Data to SD slot. On-screen Display will be appeared according to the Data folder automatically.
3. Input a following password for (a) or (b) by using remote control.
(a) For Board replacement: 2771
(b) For Hotel: 4851
Data will be copied from SD card to TV set.
4. After the completion of copying to SD card, remove SD card from TV set.
(a) For Board replacement: Data will be deleted after copying (Limited one copy).
(b) For Hotel: Data will not be deleted and can be used for other TVs.
5. Turn off the TV set.
Note:
1. Depending on the failure of boards, function of Data for board replacement does not work.
2. This function can be effective among the same model numbers.
Data Copy from TV set to SD Card
1. Turn on the TV set.
2. Insert SD card with a startup file (pwd file) to SD slot. On-screen Display will be appeared according to the startup file automatically.
3. Input a following password for (a) or (b) by using remote control.
(a) For Board replacement: 2770
(b) For Hotel: 4850
Data will be copied from TV set to SD card. It takes around 2 to 6 minutes maximum for copying.
4. After the completion of copying to SD card, remove SD card from TV set.
5. Turn off the TV set.
Note:
Following new folder will be created in SD card for data from TV set.
(a) For Board replacement: user setup
(b) For Hotel: Hotel.
1. Turn on the TV set.
2. Insert SD card with a startup file (pwd file) to SD slot. On-screen Display will be appeared according to the startup file automatically.
3. Input a following password for (a) or (b) by using remote control.
(a) For Board replacement: 2770
(b) For Hotel: 4850
Data will be copied from TV set to SD card. It takes around 2 to 6 minutes maximum for copying.
4. After the completion of copying to SD card, remove SD card from TV set.
5. Turn off the TV set.
Note:
Following new folder will be created in SD card for data from TV set.
(a) For Board replacement: user setup
(b) For Hotel: Hotel.
Data Copy by SD Card
Purpose
a) Board replacement (Copy the data when exchanging A-board):
When exchanging A-board, the data in original A-board can be copied to SD card and then copy to new A-board.
Purpose
a) Board replacement (Copy the data when exchanging A-board):
When exchanging A-board, the data in original A-board can be copied to SD card and then copy to new A-board.
Following data can be copied.
User setting data (inc. Hotel mode setting data)
Channel scan data
Adjustment and factory preset data.
User setting data (inc. Hotel mode setting data)
Channel scan data
Adjustment and factory preset data.
b) Hotel (Copy the data when installing a number of
units in hotel or any facility):
When installing a number of units in hotel or any facility, the data in master TV can be copied to SD card and the copy to other TVs.
When installing a number of units in hotel or any facility, the data in master TV can be copied to SD card and the copy to other TVs.
Following data can be copied.
User setting data (inc. Hotel mode setting data)
Channel scan data.
User setting data (inc. Hotel mode setting data)
Channel scan data.
Preparation
Make pwd file as startup file for (a) or (b) in an empty SD card.
1. Insert an empty SD card to your PC.
2. Right-click a blank area in a SD card window, point to New, and then click text document. A new file is created by default (New Text Document.txt).
3. Right-click the new text document that you just created and select rename, and then change the name and extension of the file to the following file name (a) or (b) and press ENTER.
File name:
(a) For Board replacement: boardreplace.pwd
(b) For Hotel: hotel.pwd
Note:
Make only one file to prevent the operation error.
No any other file should be in SD card.
Make pwd file as startup file for (a) or (b) in an empty SD card.
1. Insert an empty SD card to your PC.
2. Right-click a blank area in a SD card window, point to New, and then click text document. A new file is created by default (New Text Document.txt).
3. Right-click the new text document that you just created and select rename, and then change the name and extension of the file to the following file name (a) or (b) and press ENTER.
File name:
(a) For Board replacement: boardreplace.pwd
(b) For Hotel: hotel.pwd
Note:
Make only one file to prevent the operation error.
No any other file should be in SD card.
How to remove the back
cover
Remove the 1 fixing screw and WIFI DONGLE.
Remove the 1 fixing screw and BT DONGLE.
Remove the 1 fixing screw and BT DONGLE.
Remove the 31 fixing screws, 4 caps and the
backcover
How to remove the pedestal assembly.
Lay the main unit face down.
Lay the main unit face down.
Remove the 2 fixing screws and the cover of the
stand.
Remove the 4 fixing screws and the pedestal
assembly.
