TCL LED28B2500

T
DGND
DGND
DGND
DGND
DGND
DGND
DGND
DGND
DGND
DGND
DGND
DGND
DGND
DGND
DGND
T
T
DGND
T
T
T
DGND
T
DGND
DGND
GND/ADJ
OUT
VIN
4
DGND
DGND
DGND
DGND
T
DGND
DGND
T
T
DGND
T
T
DGND
DGND
DGND
T
T
SW
EN
COMPFREQ
GND
BST
FB
VIN
AAM
IN
SWEN/SYNC
BST
FB
GND
VCC
VIN
PGOOD
SW
GND
FB
PVIN
T
T
T
T
680mA
Vout=0.8(1+R817/R816)=0.8(1+470/33)=12.19V
+24V/12V
GND
LO=>PS POWER OFF
LO=>LVDS POWER OFF
HI=>LVDS POWER ON
HI=>PS POWER ON
39k
DIM
GND
GND
GND
+24V/12V
P_ON/OFF
+24V/12V
BL_ON/OFF
DIMMING NEEDED PWMOUT,NO D807 & C891
VCC=0.8(1+R823/(R824+R825))=5.07V
R858 IS 0OHM
POWER 12V THIS NO NEED
POWER & BACKLIGHT CONTROL
BACKLIGHT DIMMING ADJUST
MAIN POWER SOCKET
DDR POWER
PANEL POWER SUPPLY
CORE POWER
12V TO 5VAIN CIRCUIT
173mA
CLOSE TO CONECTOR
3V3STB
3V3STB
24V TO12V CIRCUIT
D804
CMS06
+3V3STB
5VAIN
C816
220U
16V
C819
220U
16V
C805
220U
16V
+3V3STB
R805
1K
P_ON/OFF
P_ON/OFF
R899
100R
NC
0.1U
C801
NC_4
ZDIM1
P_ON/OFF
5VAIN
+1V2-VDDC
DIMMING
AVDD-DDR-1V8
Z+24V/12V
4
1
2
3
6
5
MP2127
U802
1
2
36
5
8
4
7
U801
MP1495
1
2
36
5
8
4
7
U800
MP1582
5VAIN
NC
0R
R806
5VAIN
+12V
0.1U
C825
+24V/12V
R816
24K
NC_4
R8010R
R800
0R
+12V
+12V
ZDIM2
DIMMING
1 2
4
6
8
12
10
3
5
7
9
11
P800
D800
3V6
Z+3V3STB
+3V3STB
+3V3STB
+12V
BL_ON/OFF
L800
35-392170-00X
BRI_ADJ-PWM0
5VAIN
5VAIN
+3V3STB
+3V3STB
NC
1K
R804
R820
0R
5VAIN
5VAIN
L801 30R
NC_4
+12V
0R
R807
R846
470K
1UC834
AVDD_DDR_1V8
R810 10K
NC
100R
R803
0.01U
C829
NC
B
C
E
Q802
BT3904
C832
1U
NC
R839
10K
NC
R825
0R
GND
Z+24V/12V1
Z+24V/12V2
ZBL-ON/OFF1
R833
560R
R832
6K8
R831
22K
L804
22UH
R841
4K7
10K
R840
NC
NC
R843
10K
22K
R830
NC_P
R823
0R
R822
120R
0.1U
C838
NC_P
R829
33K
5VAIN
R821
270R
C814
0.1U
C815
1U
0.1U
C813
100K
R824
0.1U
C812
0.1U
C818
10U
C817
R811
330R
NC
LL4148
D802
NC
10K
R808
NC
1 2 3
4
U803
AS1117AD
R809
4K7
1K
R802
G
D S
PMV65XP
Q800
R812
100R
C831
22P
0.1U
C826
+3V3STB
Z+24V/12V3
P-ON/OFF
VCC-PANEL
VCC-PANEL
C827
1U
2U2
C824
4U7
C835
B
C
E
BT3904
Q801
LL4148
D803
R844
100K
R842
10K
C828
100U
16V
R828
10K
R827
82K
16V
100U
C811
82K
R826
ZBL-ON/OFF
30RL802
NC_4
+12V
+12V
+24V/12V
R818
33K
NC_4
0.1U
C806
NC_4
C807
1U
NC_4
C808
1000P
R813
0R
NC_4
100K
R814
NC_4
L803
10UH
C804
220U
35V
NC_4
0.1U
C802
NC_4
R815
220K
NC_4
4700P
C809
NC_4
C810
390P
NC_4
15K
R819
NC_4
R817
470K
NC_4
C803
0.1U
NC_4
D801
SR34
NC_4
C823
4U7
C821
470U
6V3
C822
0.1U
R837
300R
10UH
L805
+1V2_VDDC
R836
5K1
3K3
R835
C820
0.1U
100K
R834
0.01U
C830
R838
10K
NC
PWR-ON/OFF
+3V3STB
+24V/12V
P_ON/OFF
BL_ON/OFF
DGND
DGND
DGND
VCC-PANEL
PANEL_ON/OFF
DGND
+3V3STB
FB
IN
COMP
BS
VBL_CTRL
5VAIN
V_AUDIO
1U
C836
0.1U
C837
Z5VAIN
EN
NC
100R
R847
D805
CMS06