Schematic; Main Board - Haier LT32M1CA Service Manual

32"LCD TV
10. Schematic Diagram

10.1 Main Board

EU OTS MT533X - 4 LAYERS
DC POWER INPUT
CONN
12
11
10
9
8
7
6
5
4
3
2
1
CN100
0.6 x (1+2.44K/1.2K) = 1.82V
15uH
DV18_DDR
C112 +
330uF 16V R124
C131
NC/22N 16V
USE 330uF 16V GF
R137
R115
1%
NC/1K 1/10W 5%
R117
1.2KOHM +-1% 1/10W
1%
STB_PWR5V
BRIGHT_ADJ:
Normal:Max:+3V3, Min:0V
Stand_By:0V
INVERTER_ON_OFF: STANDBY:
Normal: High Normal: High
Stand_By: Low Stand_by: Low
DV33 DV33SB
INVERTER_ON_OFF
BRIGHT_ADJ
+12V
R144 R129
1K 1/16W 5% NC/2K2 1/16W 5%
SMD/0402 SMD/0402 SMD/0402
R146 NC/100R 1/16W 5% CEC_PWRSB
+24V
SMD/0402 STANDBY
R113 100R 1/16W 5% STANDBY
STB_PWR5V
SMD/0402 Q106
R142 NC/100R 1/16W 5% OPWRSB BC847C
C108 C132
10U 16V 10U 16V
L101 U104 U103
L5985 L5985
1 8 8
Vout Vcc Vcc
2 7 7
SY NC GND GND
D101 3 6 6
INH FSW FSW
SS2P4 4 5 5
COMP FB FB
R104 C129
C102
33N 16V
R127 Q108 Q109 R128
OPWRSB
10K 1/10W 5% 10K 1/10W 5%
OPWRSB(+1V8):
Normal: High
Stand_By: Low
From +5V_SW to +1V8/+1V1 By OPWRSB
OFF: Low
FB100 220R/2000mA +5V_STB
1 2
FB101 220R/2000mA
1 2 + C107 C106
100N 16V
OPWRSB(+5V_SW ON/OFF):
Normal: High
Stand_By: Low
+5V_STB +5V_TunerB+
R149
IF 5V HAVE DIP
0R05 1/4W
+5V_SW +5V1_TUN
R105
OPWRSB
IF 5V NO DIP
NC/0R05 1/4W
R147
R126 1K 1/16W 5% STAND_BY
SMD/0402
C124
100N 16V
STAND_BY:(OPCTRL3)
SMD/0402
Normal: Low
Stand_by: High
R143
+12V
NC/0R05 1/4W
R150
+5V_SW
0R05 1/4W
+
C110
220uF 16V
0.6 x (1+1.1K/1.2K) = 1.15V
L102 15uH
DV11
1
Vout
2
SY NC
3 D100
INH
4 SS2P4 + C111
COMP
330uF 16V
R125
C130
NC/22N 16V
C128 R106
R116 USE 330uF 16V GF
C104 R123
NC/1K 1/10W 5%
33N 16V
1%
R122
1.2KOHM +-1% 1/10W
1%
OPWRSB
OPWRSB(+1V1):
Normal: High
Stand_By: Low
OFF: Low
43
Haier LT32M1CA&LT32M1C
+5V_STB +5V_SW
Q104 SI5441DC
8 1
D D
7 2
D D
6 3
D D
5 4
S G
C105 +
100N 16V C101
100uF 16V
R130
5K1 1/10W
R107
2 Q101 C114
BC847C
4.7UF 10V
1K 1/10W 5% C135 C121
2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17
R145
CEC_PWRSB
NC/10K 1/16W 5%
SMD/0402
+5V_STB(+5V1) TO +5V_SW BY OPWRSB
+3V3SB
+3.3V for 538X MCU
CEC_PWR(DV33SB ON/OFF):
Normal: Low
Stand_By: High R140
CEC_PWRSB
2
CEC_PWR Q107 R139
+3V3SB TO DV33SB BY CEC_PWR
+5V_TunerB+ +5V1_TUN
R120 NC/0R05 1/4W
VTT
6 1
D D
5 2 C118
D D
4 3
S G
100N 16V
Q103
SI3441BDV
R102 DV18_DDR
R131 NC/75R 1/10W 1%
5K1 1/10W
R132
R103 NC/75R 1/10W 1% C119
100N 16V
22K 1/10W
R101
STANDBY 2 Q100 C127
BC847C 4.7UF 10V
22K 1/10W
R100 C126
22K 1/10W 100N 16V
STANDBY:
Normal: High
Stand_by: Low
+5V_STB TO +5V1_TUN
FOR IF HAVE 5V DIP
The item of this page start from "100"
T P V ( Top Victory Electronics Co . , Ltd. ) OEM MODEL
絬 隔 瓜 絪 腹 T2913-1-HISENSE32-080229 TPV MODEL
Key Component
02. POWER-1 PCB NAME
Date Monday , April 14, 2008 Sheet
+24V
2,6,16 +24V
+12V
2,16 +12V
+5V_STB
2,9,11 +5V_STB
+5V_SW
2,7,10,12,13,14,15,16,17 +5V_SW
+5V1_TUN
2 +5V1_TUN
DV18_DDR
5,8 DV18_DDR
DV11
5 DV11
OPWRSB
6 OPWRSB
STAND_BY
6 STAND_BY
BRIGHT_ADJ
17 BRIGHT_ADJ
INVERTER_ON_OFF
17 INVERTER_ON_OFF
DV33
2,4,5,6,9,10,15,16,17 DV33
+3V3SB
2,11 +3V3SB
CEC_PWR
11 CEC_PWR
MEM_VREF
8 MEM_VREF
VTT
8 VTT
GND
GND
DV33SB
5,6,9,11,15,16,17 DV33SB
W CEC W/O CEC
R111
DV33SB
R111 NC Yes
0 OHM +-5% 1/8W
C103 NC Yes
Q105
Q105 Yes NC
6 1
D D
5 2
D D Yes NC
4 3 R139
S G
NC/SI3441BDV
+ R138 Yes NC
C116 C103
NC/100N 16V 100uF 16V
SMD R140 Yes NC
R141
R141 Yes NC
NC/5K1 1/10W
Yes NC
C116
Q102
NC/MUN2211TIG
C117
NC/10uF/10V C117 Yes NC
Q102 Yes NC
Q107 Yes NC
Yes NC
R145
R146 Yes NC
DV18_DDR
R114 4K7 1/10W
U102
1 8
GND VTT
2 7
SD PVIN
3 6
VSENSE AVIN
MEM_VREF 4 5
VREF VDDQ
LP2996MRX
C120 C123
10U 10V 100N 16V
DV18_DDR stabilizer
Size Custom
Rev 1
715T2913-1
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