TCL 28D2900, Service Manual

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D D
C C
B B
A A
Title
Number Revision Size
A4
Date: 2014/8/25 Sheet of
File: D:\WORK\..\TV#01_BLOCK DIAGRAM.SchDoc Drawn By:
5V_STB
1V0_M
3V3_STB
5V_M
1V5_DDR
3V3_Tun
3V3_M
LED_Dir
PVCC
*
*
S2T512
T2+T+C TUNER
PANEL
DDR3
5V +/-5% @ 500mA
USB
UD1
DCDC
WPM2341
QM3
12V
WPM3407
QM1
UB802
DCDC
LDO
UT2
LDO
UD5
LDO
UD4
LDO
UD3
UD2
DCDC
LEDS
Current:Max 2600mA
Current:Max 50mA
Current:Max 1525mA
Current:Max 280mA
Current:Max 460mA
12V_AMP
AMP
UT3
BLOCK DIAGRAM
S2 TUNER
13V/18V 500mA
UZ1
LNB_PW
DCDC
1.2A
220mA
110mA
S2T512
LVDS(8bit)
AMP
MUTE
Audio-out
IF-/+
I2C
LVDS
P
W
M
-V
C
C
B
L
_
O
N
CVBS+AUDIO
C
O
A
X
HDMI
COAX
PCMCIA
USB-/+
SCART RGB/CVBS AUDIO IN
SCART
SPI Flash
KEYPAD
IR
LED
8Ω
L-Speaker
8Ω
R-Speaker
T
2
+
T
+
C
T
U
N
E
R
OPTICAL
O
P
T
IC
A
L
SCART CVBS AUDIO OUT
I2C IF-/+
BLOCK DIAGRAM
S
2
T
U
N
E
R
DVB-S2
+12V_OFF
LNB_PW
I2C
HDMI B(MHL)
HDMI A (ARC)
DVB-T
5V_M
5
V
_
A
N
T
LEDs Driver
M
IN
I
A
V
MINI AV
USB+DOWNLAND
YPBPR
RT9108
Headphone