Start-Up Operation - Panasonic OLED-201806 Technical Manual

Start up Operation-1
Ex. 55FX600** series
P
Transformer
T7301
64V(*)
Output
PFC
T7202
IC7201
DC/DC
IC7301
16V
Output
When the TV is plugged in, the power board outputs 5V for standby voltage.
POWER
When the power supply receives the TV_SUB_ON signal, it outputs 2 different voltages:
Switch
16V to the A board on pins 1, 2, 3 and 4 of connector P2.
64V(*) to the LED backlight drive part.
After A board is ready to display, it outputs Backlight_on command to P board.
P board output 110-140V(*) to the backlight of LCD panel on pins 3 and 7 of connecter P3
(Each models are different pin allocation but operation is same.)
Q7402/04
L7815/16/
Q7804/01
64V(*)
(DC/DC)
LED
Drive
IC7800
Q7403
DC/DC
IC7405
P3
VLED1,2
1,5
(*110-140V)
6 6
(light) (light)
3,7
5
3 3
P2
BL_ON
14
1 - 4
16V
1
7
STB5V
9
TV_SUB_ON
10
POWER_ON
<A+P>
LCD Module
Power
LCD Panel
For
LED
(Back
T-CON
Light)
board
PNL12V
A02
44 - 51
A16
14
1 - 4
F15V
7
STB5V
2 2
9
10
KEY3
(*)The DC level is different
by the LCD panel.
4
A
31