Sharp LC-55LE643U_FPTW Service Manual page 86

Lcd tv 55"
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5
POWER IN
JP1
1
2
3
4
5
D
6
7
8
9
10
2R00_1X10ML
Adrian Modify 20130916
CP3
0.1uF/16V
+19V
C
CP57
CP59
10uF/25V
NC
1206C
0603C
19V -> 5V: RP78=24K, CP61=4.7nF/50V, CP62=100pF/50V
Shared: 1.EUP3484SDIR1, 2.IT76630M, 3.FR9889SPCTR
+19V
B
CP68
CP71
10uF/25V
NC
1206C
0603C
19V -> 12V: RP83=300K, CP72=4.7nF/50V, CP73=100pF/50V
Shared: 1.EUP3484SDIR1, 2.IT76630M, 3.FR9889SPCTR
Adrian Modify 20131004
A
Adrian Modify 20131004
5
4
POWER_SW_ON_OFF
RP10
100
RP13
100
PWM1
PWM2
RP11
CP8
RP12
CP6
CP9
10K
10K
1000pF/50V
NC
NC
RP74
120K
UP17
EUP3484SDIR1
1
8
BS
SS
2
7
IN
EN
Adrian Modify 20131007
3
6
SW
COMP
4
5
GND
FB
RP86
RP85
CP61
124K_F
27K_F
RP78
4700pF/50V
R1
R2
24K
CP62
100pF/50V
CP63
Adrian Modify 20131201
0.01uF/16V
VOUT=0.925x[(R1+R2)/R2]
2
1
LP5
10uH/3.2A
+
CPE7
CP64
220uF/25V
10uF/10V
0805C
Adrian Modify 20131115
RP79
NC
UP18
EUP3484SDIR1
1
8
BS
SS
2
7
IN
EN
3
6
SW
COMP
4
5
GND
FB
RP81
RP82
CP72
150K_F
12K1_F
RP83
4700pF/50V
R1
R2
300K
CP73
100pF/50V
CP74
0.01uF/16V
VOUT=0.925x[(R1+R2)/R2]
2
1
LP4
10uH/3.2A
2
1
+
CPE9
CP75
LP6
NC
220uF/25V
10uF/25V
1206C
Adrian Modify 20131115
H6
H4
1
2
1
2
SCREW
SCREW
CIR80-60
CIR80-50
4
3
+19V
+ CPE1
CP1
220uF/25V
0.1uF/25V
+12V_ON_OFF
BL_ON/OFF
 low=OFF , high=ON
BL_DIMMING_1
 low=OFF , high=ON
BL_DIMMING_2
DIMMING
Duty: 20%~100%
STANDBY POWER +5VSB
CP60
RP80
0.1uF/16V
NC
+5VSB
+
CPE8
CP65
CP66
CP67
220uF/16V
10uF/10V
0.1uF/16V
0.01uF/16V
0805C
Adrian Modify 20131115
For +5VSB drop issue
+12V POWER
+12V_ON_OFF 4
CP70
0.1uF/16V
RP84
NC
+12V
CP76
CP77
CP78
NC
0.1uF/16V
0.01uF/16V
1206C
H5
H3
1
2
1
2
1
SCREW
SCREW
CIR80-60
CIR80-50
3
2
BL_ON/OFF
BL_ON/OFF
PWM1 BUFFER
BL_DIMMING_2
+
CPE10
220uF/16V
PWM0 BUFFER
BL_DIMMING_1
H2
H1
2
1
2
SCREW
SCREW
CIR80-50
CIR80-50
2
1
+12V_ON_OFF
+12V_ON_OFF 4
BL_ON_OFF
BL_ON_OFF 4
BL_DIMMING1
BL_DIMMING1 4
BL_DIMMING2
BL_DIMMING2 4
BL_ON_OFF
H :Backlight on
L :Backlight off
+3V3SB
RP5
RP7
1K
10K
2
QS5
RP6
10K
LMBT3904LT1G
2
BL_DIMMING2
QS6
LMBT3904LT1G
RP8
NC
+3V3SB
RP1
RP2
1K
10K
2
QS3
RP3
10K
LMBT3904LT1G
2
BL_DIMMING1
QS4
LMBT3904LT1G
RP4
NC
1
D
C
B
A

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