Panasonic LCD-201411 / AVC-201411 / AX900 Service Manual / Other ▷ View online
P
A
LCD Module
Power
For
LED
(Back
Light)
T-CON
board
LCD Panel
A02
A16
7
44-51
STB5V
F15V
P6
Transformer
T7301
Q7403/05
PFC
T7201
IC7201
DC/DC
IC7301
P2
Q7402/04
7
24V
Output
16V
Output
1
4
PNL12V
16V
32V(*)
STB5V
33
9
9
TV_SUB_ON
5
BL_ON
11
11
2
LED
Drive
IC7800
9-15
1-7
1,2,3
1,2,3
DC/DC
IC7801
DC/DC
IC7503
GK
P5
3
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:
When the power supply receives the TV_SUB_ON signal, it outputs 2 different voltages:
•16V to the A board.
•32V to the LED backlight board in panel module.
•32V to the LED backlight board in panel module.
After A board is ready to display, it outputs Backlight_on command to LED Drive circuit.
12
12
POWER_ON
KEY3
6
(light)
2
24V
21
Start up Operation (AX670/AX630)
AX670/AX630
32V(*)
P
PB
FR
A
LCD
Module
Power
For
LED
(Back
Light)
T-CON
board
LCD Panel
FR1
7
3-5
STB5V
F15V
Q7403
PFC
T7201
IC7201
DC/DC
IC7301
P2
Q7701/02
15
16V
Output
PNL12V
16V
STB5V
17
9
TV_SUB_ON
BL_ON
9-12
1-3
DC/DC
IC7405
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:
When the power supply receives the TV_SUB_ON signal, it outputs 2 different voltages:
16V to the A, FR board, 24V to the Panel module for LED drive.
12
POWER_ON
KEY3
24V
22
12
FR30or31
16V
1-4
1-4
FR20
STB5V
Output
Transformer
T7301
T7302
T7302
Transformer
T7301
T7302
T7302
24V
Output
Q7711/12
LED
Drive
Power
For
LED
(Back
Light)
LED
Drive
24V
DC/DC
IC7600
P6
20
P7
P8
P9
Start up Operation (85AX850/85X940)
85AX850/85X940
5
5
2
2
3
3
22
22
1-5,
11-15
1-5,
11-15
1
3
5
6
(light)
2
33
4
6
(light)
A02
After A and FR boards are ready to display, FR board outputs Backlight_on command to
LED Drive circuit.
P10
P11
P6
P7
FR
LD
AP
P
A
LCD Module
Power
For
LED
(Back
Light)
T-CON
board
LCD Panel
A02
FR1
7
3-5
STB5V
F15V
P3
Transformer
T7301
T7302
T7302
Q7403
PFC
T7201
IC7201
DC/DC
IC7301
P2
Q7402/04
15
48/40V
Output
16V
Output
1
4
PNL12V
16V
STB5V
3
17
9
TV_SUB_ON
5
BL_ON
2
LED
Drive
IC7700
-7707
9-12
1-3
DC/DC
IC7550
/52/54/56
DC/DC
IC7405
GK
P5
3
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:
When the power supply receives the TV_SUB_ON signal, it outputs 2 different voltages:
•16V to the A, FR, LD and AP board.
•48/40V to the AP board .
•48/40V to the AP board .
After A and FR boards are ready to display, FR board outputs Backlight_on command to
LED Drive circuit.
20
12
POWER_ON
KEY3
6
(light)
2
48/40V
23
Start up Operation (AX900) -1
AX900
12
FR30or31
5
16V
1-4
1-4
FR20
3
AP3
VLED1,2,3,4
(68/56V)
LD5-20
STB5V
Output
AX900 (4K)
1-6
P3
13
AP3
13
AP1 LD1
1-4
10
P
IC7405
( TNPA5936** )
IC7301
1
Start Vcc
15
11
T7301
T7302
Q7301
Q7302
10
D7104,
7105
R7104-
7105
3
16V
4
PC7301
feedback
2
6
STB5V
PC7303
IC7401
CE
VH
VCC
HO
LO
FB
PGS
(Good)
Q7426-28
P3
15
P2
5V
D7102
/03
Rectifier
PFC
IC7201
Q7201
T7201
D7203/09
C7213-7
11
VCC
Q7403/05
Q7422-25
IC7403/04
Q7408/09
IC7402
24
(*)The DC level is different by the LCD panel.
14
rectifier
rectifier
1 - 6
13
< from AC plug in to
: P board >
1
Start up Operation (AX900) -2
( OFF )
( Through )
( OFF )
( OFF )
( PFC = OFF
AC100V: 140V
AC240V: 330V)
AC240V: 330V)
9 - 12
1- 4
AX900
48/40V
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