TX L42U10E Panasonic LCD TV – Service mode – self check – LED blinking error codes

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
How to enter SERVICE
While pressing (-/v) button on 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 Command
• Press the 3/4 button to change the adjustment values or function.
• Press the 1/2 button to step up/down through the functions and adjustments
• Press the numerical button VOLUME (+/-) to change option item.
• Press the OK button after each adjustment has been made to store the required values.

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.

If the CCU ports have been checked and found to be incorrect or not located then " - - " will appear in place of "O.K."

Power LED blinking timing chart

When abnormality has occurred the unit, the protection circuit operates and reset to the standby 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.

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