Thursday, November 19, 2015

PANASONIC TC-P46C2 SERVICE MODE AND LED BLINKING ERROR CODES

PANASONIC TC-P46C2 

SERVICE MODE AND LED BLINKING ERROR CODES  

Service Mode
How to enter into Service Mode
While pressing [VOLUME ( - )] button of the main unit, press [INFO] button of the remote control three times within 2 seconds.
Key command
[1] button...Main items Selection in forward direction
[2] button...Main items Selection in reverse direction
[3] button...Sub items Selection in forward direction
[4] button...Sub items Selection in reverse direction
[VOL] button...Value of sub items change in forward direction ( + ), in reverse direction ( - )
How to exit
Switch off the power with the [POWER] button on the main unit or the [POWER] button on the remote control.
Option - Mirror
Picture can be reversed left and right or up and down.
00 : Default (Normal picture is displayed)
01 : Picture is reversed left and right.
02 : Picture is reversed up and down.
Hint : If the defective symptom (e.g. Vertical bar or Horizontal bar) is moved by selection of this mirror, the possible cause is in A-board.
Service tool mode
How to access
1. Select [SRV-TOOL] in Service Mode.
2. Press [OK] button on the remote control
SOS
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 except 2nd and 1st occurrence after shipment will be cleared by [Self-check indication and forced to factory shipment setting].
POWER ON TIME/COUNT
Note : To display TIME/COUNT menu, highlight position, then press MUTE for (3sec).
Time : Cumulative power on time, indicated hour : minute by decimal
Count : Number of ON times 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
Hotel mode
Access command to the Hotel mode setup menu In order to display the Hotel mode setup menu, please enter the following command (within 2 second).
[TV] : Vol. [Down] + [REMOTE] : INPUT (3 times)
To exit the Hotel mode setup menu
Disconnect AC power cord from wall outlet.
Troubleshooting Guide
Use the self-check function to test the unit.
1. Checking the IIC bus lines
2. Power LED Blinking timing
Check of the IIC bus lines
How to access

Self-check indication only:
Produce TV reception screen, and while pressing [VOLUME ( - )] button on the main unit, press [OK] button on the remote control for more than 3 seconds.
Self-check indication and forced to factory shipment setting:
Produce TV reception screen, and while pressing [VOLUME ( - )] button on the main unit, press [MENU] button on the remote control for more than 3 seconds.
Exit
Disconnect the AC cord from wall outlet.
Power LED Blinking timing chart
When an 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 the number of blinks of the Power LED on the front panel of the unit.

Measurements and Adjustments
Vsus selection
Caution:
When Plasma panel or A-board is replaced, Vsus should be set to LOW or HIGH.
Procedure
1. Go into main item [VSUS] in Service Mode. LOW or HIGH will be displayed.
2. Press [OK] button to go to TEST stage.
White pattern without On-Screen Display will be displayed during TEST and CONF stage. Press [5] button to display the On-Screen Display.
3. Press [VOL (-)] button to set to LOW.
4. In LOW setting
a. If no several dead pixel is visible remarkably in white pattern, press [3] button to go to CONF stage.
b. If the several dead pixels are visible remarkably in white pattern, Set to HIGH by press [VOL (+)] button. Press [3] button to go to CONF stage if the symptom is improved.
5. Press [OK] button in CONF stage to store LOW or HIGH.
6. Exit Service Mode by pressing [Power] button.
White balance adjustment
# Make sure the front panel to be used on the final set is fitted.
# Make sure a color signal is not being shown before adjustment.
# Put the color analyzer where there is little color variation.
1. Set to Service mode menu, WB-ADJ.
2. Select [VIVID] for picture menu.
3. Select [Cool] for color temperature.
4. Push [5] key of remote controller to display window pattern. Confirm the brightness within 10 seconds. The following is the confirmation value. TC-P46C2 209cd/m2
In the case of NG for the measurement of the brightness, display black pattern for 30 seconds from turning on the TV set, and after that, display the brightness check pattern and measure the brightness within 2 minutes again.
5. Set [R-CUT] [G-CUT] [B-CUT] the.
6. Attach the sensor of color analyzer to the center of window pattern.
7. Fix G drive at C0h and adjust [B-DRV] and [R-DRV] so x, y value.
8. Increase RGB together so the maximum drive value in RGB becomes [FF].
That is, set [ALL DRIVE] to [FF].
Execute adjustment again. When that, the maximum value of R/G/B DRV should be [FF], and either R/G/B DRV should be [FF].
Note:
(Note) In procedure 7, all description of data [FF] should be treated as data [FC] when the model is S2/C2/U2/X2 and manual adjustment is performed by service mode menu.
9.The setting value for color temperature Mid will be calculated by multiplying the adjusted value of color temperature Cool to the ratio of the value of Cool and Mid in each GBR value.
Write that values to the data area of color temperature Mid in EEPROM
10. The setting value for color temperature Warm will be calculated by multiplying the adjusted valueof color temperature Cool to the ratio of the value of Cool and Warm in each GBR.
Write that values to the data area of color temperature Warm in EEPROM