Sharp LC-65LE645U Service Manual page 87

5
+5VSB
RP65 10K
D
UP15
LA8013
LP1
1 5 1
VIN LX
CP4 2
GND
10uF/10V CP23
0805C 0.1uF/16V 3 4
EN VFB
CP25
0.1uF/16V
0.6 x (1+100K/21.5K) = 3.39V
I :731mA
+3V3SB
+5VSB
RP67
NC UP16
RT7295A
C
5
VIN
CP7 CP32 2
GND
4
STANDBY RP79 10K
EN
10uF/10V 0.1uF/16V
CP34 CP31
10uF/10V 0.1uF/16V
0805C
# 0801:Power sequence optimizatiom
0.6 x (1+20K/21.5K) = 1.158V
I :2.07A
B
A
5
4
SOC STANDBY POWER +3V3SB
+3V3SB D3V3 A3V3
2.2uH/1200mA
2
RP68 CP28
330pF/50V
100K_F
CP5 CP10
0402R
10uF/10V 10uF/10V
CP22
0.1uF/16V
RP70
21K5_F
# 0812:Rise up +3V3SB voltage let +3.3V could meet DRV632PWR min. power range
SOC CORE POWER +1.15V
#0704 MAX 3.5A (RTD2986IK surface over 90C, current could be become 4A)
1 CP55 0.1uF/16V +1.2V
BOOT
LP2 2.2uH/4.8A
6 1 2
SW
3
FB
CP33 RP69
20K_F
NC
CP11 CP13 CP12
10uF/10V 10uF/10V 10uF/10V
RP73
21K5_F
4
3
+3.3V Power for SOC/Tuner/ Audio Block digital power
+3V3SB
RP62
STANDBY 2
H :Power on 10K
RP61 CP21
L :Power off
10K 1uF/10V
SOC DDR Power 1.5V
D1V1
+5VSB
CP26
0.1uF/16V STANDBY RP63 NC
CP14 CP30 CP15
10uF/10V 0.1uF/16V NC
0805C 0805C
3
2
+3.3V M3V3
2 3
RP56 0
0805R
QP4
RP55 CP27 AP2309GN # 0801:Leaking current issue analysis
1K 0.1uF/16V SOT23_GSD
RP57 CP20
10K 0.1uF/16V
DP5 LL4148WP
1206D
RP59 47K
QP10
LMBT3904LT1G
I :193mA
# 0801:SOC DDR power structure modify (No suppoert enable pin)
Delete CP2, CPE5, UP3, RP71, RP72, CPE6, CP16, CP42, FBP7
# 0801:SOC DDR power structure modify (Suppoert enable pin)
Create CP14, CP30, RP63, CP15, RP64, CP19, UP4, RP75, RP76, CP17, CP18, CP35, FBP6
+3.3V
# 0804:SOC DDR power structure modify (Change high current supply IC)
Create RP66, LP3, CP29
RP64
10K_F UP4
LA8013
LP3 2.2uH/1200mA
1 5 1 2
VIN LX
2 RP75 CP29
GND
20K_F 330pF/50V
3 4
EN VFB
RP66 CP19
1uF/10V RP76
NC 13K3_F
0.6 x (1+20K/13.3K) = 1.50V
I :178mA
APPROVED BY: APPROVED BY: APPROVED BY:
CHECKED BY: CHECKED BY: CHECKED BY:
DESIGN BY: DESIGN BY: DESIGN BY:
2
1
STANDBY
STANDBY 4
D
C
DDR_POWER
+1.5V_DDR3
FBP6 80ohm/6A
0805L
CP17 CP18 CP35
10uF/10V 10uF/10V 0.1uF/16V
0805C 0805C
B
A
TECHNOLOGY TECHNOLOGY TECHNOLOGY
MODEL MODEL MODEL
LC-65LE645U(366501620150) LC-65LE645U(366501620150) LC-65LE645U(366501620150)
CIRCUITY CIRCUITY CIRCUITY System Power System Power System Power
PCB P/ N: PCB P/ N: PCB P/ N: Sheet Sheet Sheet of of of 20 20 20
0171-2272-5675 0171-2272-5675 0171-2272-5675 3 3 3
ECN NO: ECN NO: ECN NO: PCN0003586 PCN0003586 PCN0003586 REV: REV: REV: 01 01 01
SCH FILE : SCH FILE : SCH FILE :
366501620150_PCN0003586.DSN 366501620150_PCN0003586.DSN 366501620150_PCN0003586.DSN PCB REV: PCB REV: PCB REV: 01 01 01
PCB FILE : PCB FILE : PCB FILE : 017122725675.BRD 017122725675.BRD 017122725675.BRD DATE: DATE: DATE:
Friday, September 26, 2014 Friday, September 26, 2014 Friday, September 26, 2014
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