Panasonic LCD-201603, Техническое руководство

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P
LD
A
LCD Module
Power
For
LED
(Back
Light)
T-CON
board
LCD Panel
A02
A19
11
1,2,3,4
STB5V
F15V
LD2
Transformer
T7301
Q7403
PFC
T7202
IC7201
DC/DC
IC7301
P2
Q7402/05
7
24V/32V(*)
Output
16V
Output
1
4
PNL12V
16V
VLED1,2(*)
STB5V
33
9
2
TV_SUB_ON
5
BL_ON
11 10
2
LED
Drive
IC7800
1,2,3
1,3,5
L7813/14/
Q7804/01
DC/DC
IC7503
POWER
Switch
When the TV is plugged in, the power board outputs 5V for standby voltage.
When the power supply receives the TV_SUB_ON signal, it outputs 2 different voltages:
• 16V to the A board on pins 1, 2, and 3 of connector P2.
• 24/32V to the LED backlight board on pins 8,9 of connector P4.
After A board is ready to display, it outputs Backlight_on command to LD board.
12 4
POWER_ON KEY3
6
(light)
2
24V/
32V(*)
27
Start up Operation-1
3,7
1,5
(Each models are different pin allocation but operation is same.)
(DC/DC)
6
(light)
Ex. 43/49DS630** series
LD1 P4