Category: LED Television Repair and service
Contents of this article
- How to access service mode
- Firmware update procedure
PANASONIC TC-L39EM6X
SERVICE MODE
How to Enter to Service mode
At any input source then press the “< ”, “EXIT” and “OK” (using
RC within 1 sec) to enter factory mode During Factory menu, if “EXIT” key is
pushed, system will exit factory mode.
Auto Gamma Adjustment & Check
Set into factory mode then choose Auto Gamma Adjust,
Press "2" "3" "2" "4" in turn within 1sec to enter the item, and push Init will self-generate gray pattern for adjusting.
Set into factory mode then choose Auto Gamma Adjust,
Press "2" "3" "2" "4" in turn within 1sec to enter the item, and push Init will self-generate gray pattern for adjusting.
Following the Cool spec as bellow.
x
100IRE 0.2662
50IRE 0.2658
50IRE 0.2658
y
100IRE 0.2667
50IRE 0.2654
50IRE 0.2654
(1) Adjust 100IRE
First, Decrease G to meet y spec(0.2667). Second, Decrease R to meet x spec(0.2662).
(2) Adjust 50IRE
First, Decrease G to meet y spec(0.2654). Second, Decrease R to meet x spec(0.2658).
Note: Do not adjust the B GAIN on both 100IRE and 50IRE. When match the spec, pressing “Save” then exit the adjustment page.
(3) When match the spec, pressing right key in "Save" position then exit the adjustment page.
Exit Factory Mode:
After finish Gamma adjust press [EXIT] to exit factory mode.
First, Decrease G to meet y spec(0.2667). Second, Decrease R to meet x spec(0.2662).
(2) Adjust 50IRE
First, Decrease G to meet y spec(0.2654). Second, Decrease R to meet x spec(0.2658).
Note: Do not adjust the B GAIN on both 100IRE and 50IRE. When match the spec, pressing “Save” then exit the adjustment page.
(3) When match the spec, pressing right key in "Save" position then exit the adjustment page.
Exit Factory Mode:
After finish Gamma adjust press [EXIT] to exit factory mode.
Items of Factory menu
When in any source, press the “Left -> Exit -> Enter” key of remote control can enter into factory mode.
During Factory menu, only “EXIT” key is pushed, system will exit factory mode.
Press up and down key can move high light item from Model Change -> Color Temp. Adjust -> Auto Gamma Adjust -> Timer Clear -> Preset Channel -> Full Power -> ADC Calibration -> Shipping reset -> Bypass Gamma -> UART Enable -> I2C -> Boot Loader Upgrade -> V-Com Adjust -> SG Pattern.
Push “Enter” key can enter high light item function. (Press left and right can adjust value)
Display Model version, Release Date, firmware version and released date on the bottom.
When in any source, press the “Left -> Exit -> Enter” key of remote control can enter into factory mode.
During Factory menu, only “EXIT” key is pushed, system will exit factory mode.
Press up and down key can move high light item from Model Change -> Color Temp. Adjust -> Auto Gamma Adjust -> Timer Clear -> Preset Channel -> Full Power -> ADC Calibration -> Shipping reset -> Bypass Gamma -> UART Enable -> I2C -> Boot Loader Upgrade -> V-Com Adjust -> SG Pattern.
Push “Enter” key can enter high light item function. (Press left and right can adjust value)
Display Model version, Release Date, firmware version and released date on the bottom.
1)Model ID
Press up or down key can select high light item function
Press enter or right key to enter the item.
It's only used for FW engineer.
2)Color Temp. Adjust
Press up or down key can select high light item function
Press enter or right key to enter the item.
It's only used for PQ engineer.
3)Auto Gamma Adjust
Press up or down key can select high light item function
Press enter or right key to enter the item.
It's only used for PQ engineer.
4)Timer Clear
Reset the timer which records hours of LED panel burn in
This item will have a check dialog “yes or no” to do or not.
- Time in factory mode: Time function shall be displayed automatically. Saving the total time of system power on (LED turn on), and count the time automatically. The timer is continuous and saved (per 10 minutes) forever, unless it will be reset by doing “Timer Clear”.
5)Preset channel
Load preset channel for production line.
6)Full Power
This is for power consumption testing.
To measure the maximum power consumption of TV set, we adjust the value of following items to
maximum.
- Video: Contrast maximum value, Brightness maximum value, Backlight maximum value.
- Audio: Volume maximum value, Bass default value, Treble default value.
Press enter key to turn on Full Power and OSD stay display until press enter key to recover from Full Power.
Press up or down key can select high light item function
Press enter or right key to enter the item.
It's only used for FW engineer.
2)Color Temp. Adjust
Press up or down key can select high light item function
Press enter or right key to enter the item.
It's only used for PQ engineer.
3)Auto Gamma Adjust
Press up or down key can select high light item function
Press enter or right key to enter the item.
It's only used for PQ engineer.
4)Timer Clear
Reset the timer which records hours of LED panel burn in
This item will have a check dialog “yes or no” to do or not.
- Time in factory mode: Time function shall be displayed automatically. Saving the total time of system power on (LED turn on), and count the time automatically. The timer is continuous and saved (per 10 minutes) forever, unless it will be reset by doing “Timer Clear”.
5)Preset channel
Load preset channel for production line.
6)Full Power
This is for power consumption testing.
To measure the maximum power consumption of TV set, we adjust the value of following items to
maximum.
- Video: Contrast maximum value, Brightness maximum value, Backlight maximum value.
- Audio: Volume maximum value, Bass default value, Treble default value.
Press enter key to turn on Full Power and OSD stay display until press enter key to recover from Full Power.
7)ADC Calibration
ADC Calibration function is reserved for calibration by hand (PQ engineer only).
8)Shipping reset
Reset all settings of OSD menu to default value.
Reset settings: Channel table, Model table (H/V Position, Clock, Phase), Source dependent setting
(Contrast, Brightness etc.), Common setting (Volume, Language etc.), Parental Control (Rating,
Password etc), Closed Caption.
9)Bypass Gamma
For factory test value of gamma.
10)UART Enable
Enable to communicate with Auto-Alignment system.
11)I2C
Enable to communicate with Eeprom burn-in tool.
12)Boot Loader Upgrade
For firmware downgrade used.
13)V-Com Adjust
It's reserved for BMS function.
14)SG Pattern
Aging is for factory burn in and PTN ID provides each pattern for tester using.
ADC Calibration function is reserved for calibration by hand (PQ engineer only).
8)Shipping reset
Reset all settings of OSD menu to default value.
Reset settings: Channel table, Model table (H/V Position, Clock, Phase), Source dependent setting
(Contrast, Brightness etc.), Common setting (Volume, Language etc.), Parental Control (Rating,
Password etc), Closed Caption.
9)Bypass Gamma
For factory test value of gamma.
10)UART Enable
Enable to communicate with Auto-Alignment system.
11)I2C
Enable to communicate with Eeprom burn-in tool.
12)Boot Loader Upgrade
For firmware downgrade used.
13)V-Com Adjust
It's reserved for BMS function.
14)SG Pattern
Aging is for factory burn in and PTN ID provides each pattern for tester using.
Firmware update process
(1) Plug the USB with the firmware file named
upgrade_2013_NA_60.pkg
(2) If system detect upgrade_2013_NA_60.pkg,
USB upgrade message would appear automatically.
(3) Press Up key to select Yes, and then
press OK key to start the upgrading.
(4) Upgrading is starting, please wait for
the progress finish.
(5) When the progress completed, please
follow the instruction to remove USB and restart Power off then on.
