Chapter 8. Schematic Diagram; Main Schematic Diagram - Sharp LC-26SB25E Service Manual

CHAPTER 8.
SCHEMATIC DIAGRAM

[1] MAIN SCHEMATIC DIAGRAM

1. POWER-1
1 2
EU SHARP MT533X - 4 LAYERS
A
BRIGHT_ADJ:
Normal:Max:+3V3, Min:0V
DC POWER INPUT Stand_By:0V
B
INVERTER_ON_OFF: STANDBY:
Normal: High Normal: High
CONN
Stand_By: Low Stand_by: Low
12 INVERTER_ON_OFF
BRIGHT_ADJ
11
10
+12V
9
8
7 SMD/0402
R146 NC/100R 1/16W 5%
6
5
+24V
4 SMD/0402
R113 100R 1/16W 5%
3
2 STB_PWR5V
SMD/0402
1
R142 NC/100R 1/16W 5%
C
CN100
D
E
0.6 x (1+2.44K/1.2K) = 1.82V
15uH L101 U104
L5985
F DV18_DDR
1
Vout
2
SYNC GND
D101 3
+ INH FSW
C112 4
SS3P4
COMP
330UF 16V R124
C131
NC/22N 16V
R104 C129
USE 330uF 16V GF
R137 C102
R115 33N 16V
1%
NC/1K 1/10W 5%
R117
1.2KOHM +-1% 1/10W
G
1%
OPWRSB
10K 1/10W 5%
OPWRSB(+1V8):
Normal: High
Stand_By: Low
H OFF: Low From +5V_SW to +1V8/+1V1 By OPWRSB
1 2
3 4 5
STB_PWR5V FB100 220R/2000mA
1 2
FB101 220R/2000mA
+ C107
1 2
+5V_STB
DV33 DV33SB
+5V_SW
R144 R129
1K 1/16W 5% NC/2K2 1/16W 5%
SMD/0402 SMD/0402
CEC_PWRSB
STANDBY
STANDBY
Q106 R126 1K 1/16W 5% STAND_BY
OPWRSB BC847C SMD/0402
C124
100N 16V STAND_BY:(OPCTRL3)
SMD/0402
Normal: Low
Stand_by: High
C108 C132
0.6 x (1+1.1K/1.2K) = 1.15V
10U 16V 10U 16V
U103 L102 15uH
L5985
8 8 1
Vcc Vcc Vout
7 7 2
GND SYNC
6 6 3 D100
FSW INH
5 5 4
SS3P4
FB FB COMP
R125
C128
R106
C104 R123
33N 16V
1%
R127 Q108 Q109 R128
OPWRSB
10K 1/10W 5%
OPWRSB(+1V1):
Normal: High
Stand_By: Low
OFF: Low
3 4 5
6 7
+5V_STB
C106
100N 16V
OPWRSB(+5V_SW ON/OFF):
Normal: High
Stand_By: Low
+5V_TunerB+
R149
IF 5V HAVE DIP
0R05 1/4W
+5V1_TUN
R105 R107
IF 5V NO DIP
OPWRSB 2
NC/0R05 1/4W 1K 1/10W 5% C135 C121
R147 R145
CEC_PWRSB
NC/10K 1/16W 5%
SMD/0402
+5V_STB(+5V1) TO +5V_SW BY OPWRSB
CEC_PWR(DV33SB ON/OFF):
Normal: Low
Stand_By: High
R143
+12V
NC/0R05 1/4W
R150
+5V_SW
0R05 1/4W
+
C110
220uF 16V
+5V_TunerB+
R120 NC/0R05 1/4W
DV11
6 1
+ D D
C111 5 2
D D
330UF 16V
4 3
S G
C130 Q103
SI3441BDV
NC/22N 16V
R102
5K1 1/10W
R116 USE 330uF 16V GF
R103
NC/1K 1/10W 5%
22K 1/10W
R101
STANDBY 2 Q100
BC847C
R122 22K 1/10W
1.2KOHM +-1% 1/10W
1%
R100 C126
22K 1/10W 100N 16V
STANDBY:
Normal: High
Stand_by: Low
+5V_STB TO +5V1_TUN
FOR IF HAVE 5V DIP
6 7
85
LC-26SB25E/S RU, LC-32SB25E/S
8 9 10
2,6,16 +24V
+5V_STB +5V_SW
2,12,16 +12V
2,9,11 +5V_STB
2,7,10,12,13,14,15,16,17 +5V_SW
2 +5V1_TUN
Q104 SI5441DC
5,8 DV18_DDR
8 1
D D 5 DV11
7 2
D D 6 OPWRSB
6 3
D D
5 4
S G 6 STAND_BY
+ 17 BRIGHT_ADJ
C105
17 INVERTER_ON_OFF
100N 16V C101
100uF 16V
2,4,5,6,9,10,15,16,17 DV33
+3V3SB
2,11 +3V3SB
R130
CEC_PWR
11 CEC_PWR
5K1 1/10W
8 MEM_VREF
Q101 C114
8 VTT
BC847C 4.7UF 10V
2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17 GND
5,6,9,11,15,16,17 DV33SB
R111
+3V3SB DV33SB
+3.3V for 538X MCU
R111
0 OHM +-5% 1/8W
C103
Q105
Q105
6 1
D D
5 2
D D
R139
4 3
S G
R140
NC/SI3441BDV
+
R138
C116 C103
NC/100N 16V NC/100uF 16V
SMD
R140
R141
CEC_PWRSB R141
0R05 1/10W 5%
C116
Q102
2
NC/MUN2211TIG
C117
CEC_PWR Q107 R139 10uF/10V C117
Q102
Q107
R145
+3V3SB TO DV33SB BY CEC_PWR
R146
+5V1_TUN
VTT
C118
R114 4K7 1/10W
100N 16V
U102
1 8
GND VTT
DV18_DDR 2 7
SD PVIN
R131 NC/75R 1/10W 1%
3 6
VSENSE AVIN
MEM_VREF 4 5
VREF VDDQ
R132 LP2996MRX
NC/75R 1/10W 1% C119 C120 C123
100N 16V 10U 10V 100N 16V
C127
10U 10V Y5V
DV18_DDR stabilizer
The item of this page start from "100"
8 9 10
/ /RU , LC-42SB55E/S /RU
11
CN100 B1 C101 B8
C102 G2 C103 D10
C104 G5 C105 B8
C106 B5 C107 B5
C108 F3 C109 G4
C110 E5 C111 F6
C112 F1 C114 B8 A
C116 D9 C117 E10
C118 F9 C119 G9
C120 G9 C121 C8
C123 G10 C124 C4
C125 G3 C126 G7
C127 G8 C128 F4
+24V
C129 F2 C130 F5
+12V
+5V_STB
C131 F1 C132 F4
+5V_SW
+5V1_TUN C135 C7 D100 F5
DV18_DDR
D101 F2 FB100 A4
DV11
FB101 B4 L101 F2
OPWRSB
L102 F5 Q100 G7
STAND_BY
Q101 B8 Q102 E9
BRIGHT_ADJ
INVERTER_ON_OFF
Q103 F7 Q104 B8 B
Q105 D9 Q106 C4
DV33
Q107 E8 Q108 G3
Q109 G3 R100 G7
R101 G7 R102 F8
R103 G7 R104 F2
MEM_VREF R105 B5 R106 F5
VTT
R107 B7 R111 D9
GND R113 C2 R114 F10
R115 G1 R116 G5
R117 G1 R119 B8
DV33SB
R120 F7 R122 G5
R123 G5 R124 F1
R125 F5 R126 C4
R127 G3 R128 G4
C
R129 B4 R130 B8
R131 F9 R132 G9
R135 F3 R136 F3
R137 G1 R138 D9
R139 E9 R140 D9
R141 E9 R142 C2
R143 E6 R144 B4
R145 C7 R146 C2
W CEC W/O CEC
R147 C6 R149 B5
NC Yes R150 E6 TP100 B1
TP101 B1 TP102 B1
NC Yes
TP103 B1 TP104 B1
TP105 B1 TP106 B1
Yes NC
U102 F9 U103 F4
D
Yes NC
Yes NC
Yes NC
Yes NC
Yes NC
Yes NC
Yes NC
E
Yes NC
Yes NC
Yes NC
F
DV18_DDR
G
H
11