Haier LE43K6000SF, Руководство по обслуживанию

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5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
I2C Addr: 0x10
8.2mS
实测电压
13.41V
实测电压 18.76V
实测电压 7.5V
16.4mS
18V
6V
0V
18V
8.4mS
18V
67uS
0V
18V 500mA load
DVB_S2
高频头
DVB_S2 18V/13V
升压电路
Read Address:0xC5
Write Address:0xC4
S2
屏蔽罩
蓝色粗亮线：
90 ohm
红色粗亮线：
75 ohm
140mA
实测电压
3.2V
Close Tuner
L17
L19
CT4
的选取：
1.
内置隔离器时，
CT4=0R
2. 不带内置隔离时， CT4=470PF
L17=GZ1005D102CTF, L19=27nH,C5=470pF, L25=6.8nH, C8=L23=C6=NC, L22=0R
L17=270nH, L19=39nH,C5=470pF, L25=0R, C8=L23=C6=NC, L22=0R
L17=L23=L22=270nH, L19=39nH,C5=100pF, L25=6n8H, C8=C6=120pF
Close R842
IFAGC TBD table
Open drain R103=100R
Push Pull R103=10KR
IFAGC Circuit
C5
L25
Application
DTMB (S11<-8)
Hybrid ( with S1 filter for EN55020)
C6
ATV only, ATSC (S11>-8)
Addr 0xF6
- filter noise from demod side
kick back filter
改善
ATV
水波纹！
75 ohm line
Bead (L21):
1k@100M &
400ohm@400M,300mA
Recommend to reserve R106, R110, R109
to filter noise from demod side.
R103
C106
IF trace shielding by GND
IF Interface Filter
I2C Interface Filter
- R103 and R106 are related to Demod side's
IFAGC design. Sometime need to fine tune
for different Demod.
- Following IFAGC TBD table is common
suggestion.
靠近 silicon tuner 摆放
实测电流：
240mA
供电范围： 3.13~3.47V
0805C_ST
(1) +VDD3V input voltage tolerance must be under +-5%
(2) +VDD3V input ripple must be under 30mVpp
(3) Using LDO for +VDD3V is recommended
Bead (L21):
1k@100M &
400ohm@400M,300mA
MSTAR
方案，
AGC
采用电流型输出，
RT3
的不易过大。
其他方案，可采用参考设计要求的 10K.
QP-S QOUT+
SDA-T
SCL-T
VCC_LNBA
EXTM DISEQ_OUT1
SDA-T
IF
_A
G
C
_S
SCL-T
QOU
T+
VCC_LNBA
IP-S IOUT+
IF_AGC_S
IO
UT
+
TUNER_GND
RFIN RFIN RFIN
TU_SCL
VAGC
VAGC
TU_SDA
3.3V_TUNER
3.3V_TUNER
TU_SCL
VOP
VON
3.3V_TUNER
TU_SDA
SCL-T
3.3V_TUNER
VOP
VON
SDA-T
VCC_LNBA
+12V_Normal
+3.3V_Normal
+3.3V_Normal
T3.3V +3.3V_Normal
T3.3V
T3.3V
3.3V_TUNER +3.3V_Normal
3.3V_TUNER
IFAGC_S
4
IP_S_1 4
QP_S_1 4
DISEQC 4
VIFP
5
IFAGC_T 5
VIFM 5
TUNER_SDA
4
TUNER_SCL
4
VCC_LNBA 10
Title
Size Document Number Rev
Date: Sheet of
Change list 1.0
MSD3643GSA
Custom
8 10 Tuesday, October 11, 2016
Title
Size Document Number Rev
Date: Sheet of
Change list 1.0
MSD3643GSA
Custom
8 10 Tuesday, October 11, 2016
Title
Size Document Number Rev
Date: Sheet of
Change list 1.0
MSD3643GSA
Custom
8 10 Tuesday, October 11, 2016
R20
100R
LT11 1K/330nH
DT1
BAV99
J1
1
2
3
4
5
R15 100R
R94 4.7K
CT30
47pF/NC
C193
0.1uF/16V/X7R
+
EC2
100uF/25V
ECAP-2.5X6.3
CT32
NC/56pF
C194 1uF/6.3V/X5R
CT33
NC/10uF
U4
A8304
VCP
1
LNB
2
ADD
3
IRQ
4
SCL
5
SDA
6
TONECTRL
7
SLEEP
8
TCAP
9
ISET
10
VREG
11
GN
D
12
VIN
13
LX
14
GN
D
LX
15
BOOST
16
PAD
17
C2
22pF
CT2
68pF
C195 1nF/50V/X7R
R13
56K
C196
0.1uF/16V/X7R
+
EC1
100uF/25V
ECAP-2.5X6.3
CT
7
22nF
C52
0.1uF/25V
RT8 0R
RT3 100R
R92 100R
R21 100R
+
EC1027
220uF/16V
CT19 47nF
UD16
R842
RF_bias
2
TF1
3
TF2
4
DECT1
5
SCL
6
SD
A
7
AVD
D
8
AVDD
18
VOP
17
VON
16
VAGC
15
D
VSS
10
CP
9
RFIN
1
AVD
D
24
TFH
23
TFL
22 21
NC
DE
T
2
20
DE
T
3
19
GND
25
DV
DD
11
XT
AL
_
I
12
VAGC2
14
XTAL_O
13
CT3
68pF
CT4
470PF
CT34
NC/1uF
LT5
GZ1005D102CTF
CT28 100nF
FB1010-4A-0603
C191
NC
R183
100
R14 100R
+
EC6
100uF/25V
ECAP-2.5X6.3
CT9 1nF
RT4 NC
R19
10K
C190
39pF
L511
220-2A-0603
+ C18
10uF
LT8 180nH
LT
3
27nH
C58
0.1uF/25V
C197
0.1uF/25V
FB15
10-4A-0603
C250 0.1uF
C1090
10uF/6.3V/X5R/0603
C181
NC
C45
104
1
2
TC2
10P
LT6
270nH
CT25
10uF
C50 220nF
RT2 330R
TL1
10-4A-0603
LT1
6.8nH
RT7
NC
D1
SS24
1 2
LT2 270nH
CT21
330pF
CT
5
100nF
+
C68
10uF
J5
RFIN
1
2 3 4 5 6
7
8
9
10
CT1 120pF
LT
4
270nH
D3
SS24
1
2
RT9 330R
C265
33pF
LT7 GZ1005D102CTF
D2
SS24
1
2
CT27
NC/20pF/50V/NPO
RT5
1K8
XT1
24MHz,CL=11pF
1
2
TY1
27M
CT26
NC/20pF/50V/NPO
CT
6
22nF
C178
39pF
C1093
NC/0.1uF
C248 0.1uF
C192
0.1UF
L5
10uH/2A
CT10
NC/1.8pF
R16 10K
CT8
120pF
RT6 0R
J3
S2_TUNER
1
2
3
C49
100nF
1 2
LT10 1K/330nH
L29
3.3nH
C1
22pF
C48 0.1uF
CT22
6n8F
TC1
100nF
C282
33pF
CT20
100nF
CT24 100nF
CT31
NC/56pF
R2305
0R
U1
AV2018
RFIN+
1
NC
2
RFAGC
3
RFLP
4
RX
Q
P
5
RX
IP
6
A
DDR0
7
SC
L
8
SD
A
9
XTAL2
10
XTAL1
11
GND
12
V
CCRE
G
1
13
CP
14
EPAD
17
V
CCRE
G
2
16
R
EG
C
AP2
15
CT29
47pF/NC
C1089
0.1uF/16V/X7R
CT18 100nF
CT23
100nF