Tuesday, November 03, 2015

PANASONIC TH-42PX80U SERVICE MODE AND LED BLINKING CODES AND CAUSES

PANASONIC TH-42PX80

SERVICE MODE AND LED BLINKING CODES AND CAUSES 

How to enter into Service Mode
While pressing VOLUME DOWN  button of the front panel of the TV, 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 UP/DOWN  button...Value of sub items change in forward direction ( + ), in reverse direction ( - )
How to exit the service mode
Switch off the power with the [POWER] button on the main unit or the [POWER] button on the remote control.
Troubleshooting
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.
HOW TO EXIT IIC bus
Disconnect the AC cord from wall outlet.
Power LED Blinking

White balance adjustment
# Ensure aging is adequate.
# 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. Output a white balance pattern.
2. Check that the color temperature is Cool.
3. Set to serviceman mode, WB-ADJ.
4. Set R-CUT G-CUT B-CUT the values.
5. Attach the sensor of color analyzer to the center of highlight window.
6. Fix G drive at C0h and adjust B-DRV and R-DRV so x, y value of color analyzer become the Color temperature High.
7. Increase RGB together so the maximum drive value in RGB becomes FC. That is, set ALL DRIVE to FC. Execute adjustment again. When that, the maximum value of R/G/B DRV should be FC, and either R/G/B DRV should be FC.
8. Set color temperature to Normal
9. Set R-CUT G-CUT B-CUT the values.
10. Attach the sensor of color analyzer to the center of highlight window.
11. Fix G drive at C0h and adjust B-DRV and R-DRV so x, y value of color analyzer become the Color temperature Mid.
12. Increase RGB together so the maximum drive value in RGB becomes FC. That is, set ALL DRIVE to FC. Execute adjustment again. When that, the maximum value of R/G/B DRV should be FC, and either R/G/B DRV should be FC.
13. Set color temperature to Warm .
14. Set R-CUT G-CUT B-CUT  the values.
15. Attach the sensor of color analyzer to the center of highlight window.
16. Fix G drive at C0h and adjust B-DRV and R-DRV so x, y value of color analyzer become the Color temperature Low.
17. Increase RGB together so the maximum drive value in RGB becomes FC. That is, set ALL DRIVE to FC. Execute adjustment again. When that, the maximum value of R/G/B DRV should be FC, and either R/G/B DRV should be FC.
18. Set color temperature to Cool.