Power Led Blinking Timing Chart - Panasonic TX Series Service Manual

Power LED blinking timing chart

1. Subject
Information of LED Flashing timing chart.
2. Contents
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.
Blinking
times
Once
1*
7**
9
13
* There is a case that SOS1 doesn´t occur.
BL_SOS1 does not occur:
1 - when removing P3 connector or
when LED bars for lighting on left half screen are open
SOS1 does not occur and TV set keeps
displaying a left half picture darkly.
BL_SOS1 occur:
1 - when removing P4 connector or
when LED bars for lighting on right half screen are open
SOS1 occur, after TV set displays
a right half picture darkly for a moment.
** If SOS occurs when the power is turned on, SOS history does not remain.
(Except in case of standby with some function active.)
Blinking timing
4 sec
Light
No Light
20
Contents
BL_SOS
SOC_ARM_voltage_SOS
SOUND_SOS
EMERGENCY SOS
2 - when a LED bar for lighting on left 1/4 screen is open
SOS1 does not occur and TV set keeps
displaying a left 1/4 picture darkly.
2 - when a LED bar for lighting on right 1/4 screen is open
SOS1 occur, after TV set displays
a right 1/4 picture darkly for a moment.
Check point
LCD PANEL
P BOARD
A BOARD
P BOARD
A BOARD
SPEAKERS
A BOARD