Panasonic OLED-201806 Technical Manual page 42

Start up Operation-11
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< and
The F15V is also used to generate the PNL-Voltage on A board. IC8000 outputs the
Panel VCC On signal. IC5260 starts generating the PNL12V by this signal. The PNL12V
is provided to T-con circuit of the LCD Module.
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< : P board ( backlight drive ) >
After that, IC8000 outputs the BL_ON command to the P board. The BL_ON command
turns on the IC7800 for LED backlight drive. Then the 64V rise up over 110V(*) and output
to the backlight on the LCD panel. The backlight starts lighting by PWM signals, and LCD
panel displays the pictures.
If the backlight drive circuit does not work normally, the BL_SOS signal is informed to the
IC8000. At that time, IC8000 stops outputting the TV_SUB_ON signal and blinks the red
LED 1 times.
(*OLED) FZ series : IC8000 outputs EVDD_ON (instead of BL_ON) command to P/PB
board and 24V output to T-CON board. The T-CON board starts operation for OLED panel.
(*)The DC level is different by the LCD panel.
: A board (PNL voltage) >
<A+P>
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