Hisense 55U8GQ Service Manual page 64

5
Speaker Power
VCC_A VCC_AMP_S
L46
BLM18PG121SN1
L45
BLM18PG121SN1 C430 C439 C431 C432
D
靠近功放N80
PVDD PIN放置
Speaker
I2C address：0x54
3.3V_AMP_S
R522 4.7k R523 100R
C429 10n/50V
AMP_RESET
5,15
AMP_RESET
R520 15k/NC
Active low to reset NTP8824 3.3V_AMP_S
+3.3V_Normal 3.3V_AMP_S
R521
0R
L40
BLM15PX121SN1D
C428
C427
4.7u/6.3VV 100n/16V
N80
41
EPAD
4
GND
7
5,15 AUSD_OUT SDATA
8
5,15 AUWS_OUT
WCK
38
5,15 AUBCK_OUT
C BCK
I2C-SDA R510 10
22R
5,9,12,15 I2C_SDA
SDA
I2C-SCL R511 22R 11
5,9,12,15 I2C_SCL SCL
NTP8824
C410 1u/16V
6
DVDD
AMP-EN 12
FAULT
Pull-up
Active low to reset internal power stage
13
MONITOR_0
1 14
TP8
MONITOR_1
15
MONITOR_2
3
NC_7
C411
22n/50V
6586使用12VS与5V_Normal 组合
Mute Circuit
需确认VCC_A与5V_Normal的快慢
B
R405 0R/NC
VCC_A
R406 0R/NC
12VS
R409
R408
1k/NC
1k/NC
VD13
1N4148W/NC
R413
2
0R/NC
MMBT3906LT1/NC
1 2
VD14 1N4148W/NC
R415
100k/NC
A
5
4
Woolfer Power
VCC_AMP_S VCC_A
L50
BLM18PG121SN1/NC
L51
BLM18PG121SN1/NC C450 C451 C452 C453
C426
L41
10.0 uH
22n/50V
R516
C424
5.1R
VCC_AMP_S 100n/50V
C421 220p/50V
C423
470n/50V
C422 220p/50V
C425
R517
100n/50V
5.1R
L42
30 10.0 uH
OUT1B_1
C420
29
PGND1B 22n/50V
28
BST1B
27
VDR1
C419 1u/16V
25
AGND
24
VDR2
C418 1u/16V
23
BST2A
22 C417
PGND2A
22n/50V
L43
21
OUT2A_1
10.0 uH
R512 C415
5.1R
100n/50V
C412 220p/50V
C414
470n/50V
VCC_AMP_S C413 220p/50V
C416
R513
100n/50V
5.1R
L44
10.0 uH
+3.3V_Normal
R407
VD11
4.7k
1N4148W/NC AMP-EN
R410
1 2 1
VD12 1N4148W/NC
10k
R411
R412
47k/NC +3.3V_Standby 10k/NC
R416
100k/NC
3 R414
V22
4.7k
AMP-MUTE 1 2
5 AMP-MUTE
VD15 1N4148W
H :MUTE
L :UNMUTE
AMP AC power off mute
4
3
Headphone
VCC_AMP_W VCC_AMP_W
5 EARPHONE_OUTR
5 EARPHONE_OUTL
靠近功放N81
PVDD PIN放置
Woolfer
I2C address：0x56
3.3V_AMP_W
AMP-Rout+ R547
AMP_RESET
5,15
AMP_RESET
Active low to reset NTP8824
R518
+3.3V_Normal
4.7k
L52
BLM15PX121SN1D/NC
4.7u/6.3VV/NC
R519
4.7k
AMP-Rout-
5,15 AUSD_OUT
5,15 AUWS_OUT
5,15 AUBCK_OUT
I2C-SDA
5,9,12,15 I2C_SDA
I2C-SCL
5,9,12,15
I2C_SCL
AMP-EN
Pull-up
Active low to reset internal power stage
AMP-Lout-
R514
4.7k
R515
4.7k
AMP-Lout+
AD
I2C address
1 0x56
0 0x54
Mute Circuit
3
2
C324 22u/6.3VV
EARPHONE_OUTR HP_ROUT
HP_DET
5 HP_DET
C325 22u/6.3VV
EARPHONE_OUTL HP_LOUT
R428 R429
1k 1k
C476
4.7k/NC R546 100R/NC
22n/50V/NC
C477 10n/50V/NC
R544 15k/NC
3.3V_AMP_W
R540
3.3V_AMP_W 5.1R/NC
R545
0R/NC
VCC_AMP_W
C471 220p/50V/NC
C479
C478
C472
100n/16V/NC
N81
R541
5.1R/NC
41
EPAD
4
GND
R530 0R/NC 7 30
SDATA OUT1B_1
R531 0R/NC 8 C470
WCK
38 29
R532 0R/NC
BCK PGND1B 22n/50V/NC
R533 10 28
22R/NC
SDA BST1B
R534 22R/NC 11
SCL
27
NTP8824/NC
VDR1
6 C469 1u/16V/NC
C460 1u/16V/NC
DVDD
R535 12
FAULT
25
0R/NC
AGND
13 24
MONITOR_0 VDR2
1 14 C468 1u/16V/NC
TP9
MONITOR_1
15 23
MONITOR_2 BST2A
22 C467
PGND2A
3
NC_7 22n/50V/NC
21
OUT2A_1
R536
5.1R/NC
C462
VCC_AMP_W C463
R537
5.1R/NC
C461
22n/50V/NC
Woofer_R+ 8
Woofer_R- 7
Woofer_L+ 6 Woofer_L+ 6
Woofer_L- 5 Woofer_L- 5
AMP-Rout+ 4 AMP-Rout+ 4 AMP-Rout+ 4
AMP-Rout- 3 AMP-Rout- 3 AMP-Rout- 3
AMP-Lout- 2 AMP-Lout- 2 AMP-Lout- 2
1 1 1
AMP-Lout+ AMP-Lout+ AMP-Lout+
XP6 XP7 XP8
HX2.0-4P-W-K HX2.0-6P-W-K/NC HX2.0-8P-W-K\LW/NC
2
1
+3.3V_Normal
R421
4.7k XS13
HP_ROUT 2
R
HP_LOUT 1
L
R423
3
SW
4
100R GND
GCC02-0251\Reflow
与公版相反，需软件配置
HP_DET 卧式
L :DETECT
H :Normal
L53
Woofer_R+
10.0 uH/NC
R542
C474
4.7k/NC
100n/50V/NC
220p/50V/NC
C475
R543
100n/50V/NC
4.7k/NC
L54
Woofer_R-
10.0 uH/NC
L55
Woofer_L-
10.0 uH/NC
C465
R538
100n/50V/NC
4.7k/NC
220p/50V/NC
220p/50V/NC
C466
R539
100n/50V/NC
4.7k/NC
L56
Woofer_L+
10.0 uH/NC AD
I2C address
1 0x56
0 0x54
Title Title Title
MSD6886 MSD6886 MSD6886
Size Size Size Document Number Document Number Document Number
Custom Custom Custom
Audio & Hp Audio & Hp Audio & Hp
Date: Date: Date: Thursday, September 20, 2018 Thursday, September 20, 2018 Thursday, September 20, 2018 Sheet Sheet Sheet 15 15 15 of of of
1
D
C
B
A
Rev Rev Rev
v1.0 v1.0 v1.0
19 19 19