Skyworth 5R81A-50E79, 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
S K Y W O R T H
创 维
TUNER POWER
R1
R3
R2
IF AGC Switch
R4
Close Tuner
Closed to 2975K
XI2
AGC_IF2
VICM2
R12K2
XO2
AS2
CLK2
DATA2
T_IF-AGC T_IF-AGC AGC_T D_IF-AGC
TAGC
TAGC AGC
TUN_DIF-
TUN_SCL
TUN_SDA
TU_SW
T_IF-AGC
TUN_SCL
TUN_SDA
TUN_DIF-
TUN_
SDA
TUN_
SCL
T_IF-AG
C
TUN_
DIF+
TUN_
DIF-
VIFM
VIFP
TUN_DIF-
TUN_SCL
TUN_I2C_SDA
TUN_I2C_SCL
TUN_SDA
AGC_T
TU_SW
SCLD2 SDAD2
1V2
3.3V_Demod
3V3
3V3 1V2
3V3
1V2
1V2
1V2
3V3
3V3
3V3
1V2
3.3V_Demod
3.3V_Demod
1V2
Tuner_VC
C
D_5V
Tuner_VCC Tuner_VCC
3.3V_Demod
Tuner_VCC
Tuner_VCC Tuner_VCC
Tuner_VCC
Tuner_VCC
3.3V_Demod
Tuner_VCC
D_IF-AGC
TUN_I2C_SCL
TP_VALID2
TUN_I2C_SDA
TP_SYNC2
TP_CLK2
TP_DATA02
TP_ERR
D_IF-AGC
IF-AGC-SEL 3
AGC
VIFM
VIFP
TU_SW
Size
Document Number
R e v
Date: Sheet o f
Title
Design Check Auditing Modify Rev
A A3
6 17 Thursday, June 20, 2013
TUNER
Check of name Auditing of name Modify Rev
Size
Document Number
R e v
Date: Sheet o f
Title
Design Check Auditing Modify Rev
A A3
6 17 Thursday, June 20, 2013
TUNER
Check of name Auditing of name Modify Rev
Size
Document Number
R e v
Date: Sheet o f
Title
Design Check Auditing Modify Rev
A A3
6 17 Thursday, June 20, 2013
TUNER
Check of name Auditing of name Modify Rev
RTL2832
QFN-48
U7
VIP
1
VIN
2
GNDA
3
VQP
4
VQN
5
VINR
6
PD_AFE
7
VDDPLL
8
GNDPLL
9
TP_CKO
10
XO
11
XI
12
V
DD1
13
AG
C
_
IF
14
V
DD3
15
A
G
C_RF
16
I2
C
_
SC
L
T
17
I2
C
_
SD
AT
18
I2
C
_
SC
L
19
I2
C
_
SD
A
20
V
DD1
21
I2
C_A
DDR0
22
FB
23
SW
_
V
O
U
T1
24
SW_VDD3
25
ENSWREG
26
VDD1
27
HW_RST_N
28
M_ERR
29
M_SYNC
30
M_VAL
31
M_CKOUT
32
M_DATA0
33
M_DATA1
34
M_DATA2
35
M_DATA3
36
M_D
A
TA4
37
M_D
A
TA5
38
M_D
A
TA6
39
M_D
A
TA7
40
V
DD3
41
UV
DDA
42
V
DDA
33
43
V
DDA
44
GNDA
45
VC
MI
46
V
DDA
47
R12K
48
G
N
D
PAD
49
R35
4.7K
R265 0R
R815
100K
+
C
1442
220uF/16V
R838 1K
R60
4.7K
R26
390
R33
100
C68
0.1u
R822
1K
TL15 FB120R
R349 0R
R27
4.7K
R38 100
R34 100
C816
22pF
R823 NC/0R
C70
0.1u
U214 ASM1117_1.2V
AD
J
1
OUT
2
OUT
4
IN
3
CN13
1
2
3
4
5
6
Q806
3904
R52
4.7K
R25 4.7K
C
1220
0.1u
L14 BEAD/120
C72
27p
R816
10K
C833
100nF
Y3
28.800MHz
1 2
3
C65
0.1u
C60
22p
C77
NC
R36 12K/F
R39 100
TR19 100/NC
R819 10K
C834
100nF
C57
27p
C56 0.1u
C
1202
0.1u
C95 NC
+ CW40
22uF/16V
C69
0.1u
TL25 FB120R
C73
27p
R30
390
R28 15k
C
1223
2.2u
Q803
3906
C63
0.1u
C142
4.7nF/NC
L42
NC
TR18 100/NC
C
1218
0.1u
C821
47nF
L13 BEAD/120
C66
0.01u
TR6 4.7K
Q807
3904
C
1228
2.2u
C61
22p
C78
NC
R31
1K
TC72
10uF
P10
VGA
1
6
2
7
3
8
4
9
5 11
12
13
14
15
10
16
17
C
1221
0.1u
C815
22pF
R824
4.7K
TC69
10uF
C210 0.1u
Q808
3906
C64
0.1u
C58
27p
C
1226
2.2u
R41
0
R135 10k
T1 TDST-070F-LG
AN
T_
Po
w
e
r
1
NC
2
SD
A
3
NC
6
IF AG
C
9
DI
F
+
10
DI
F
-
11
GND
12
GND
13
GND
14
GND
15
SC
L
4
+B
1(3.
3V
)
5
NC
7
NC
8
C
1222
0.1u
L22
4.7uh/NC
C59
0.1u
R821
100K
R134
10K/NC
+
C
1458
100uF/16V
R32
1K/NC
C79
0.1u
C812
0.1uF
C226 0.1u
R29
4.7K
R814
100K
R37 1M
U9
ASM1117-3.3_1.5A
AD
J
1
OUT
2
OUT
4
IN
3
C170
10nF
R40 0
C62
0.1u
C71
0.1u
TC68
10uF
C67
0.1u