Skyworth 8M29B, 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
IF
_
AGC
T
_
IFAGC
#IF
_
OUT
IF
_
OUT
IF
_
AGC
SDA
SCL
B3
_
3
.
3V
3
.
3V
_
Demod
B4
_
1
.
2V
1
.
2V
_
Demod
3
.
3V
_
Demod
5VA
1
.
2V
_
Demod
3
.
3V
_
Demod
2
.
5V
_
Demod
2
.
5V
_
Demod
AD
_
DVDD
AD
_
AVDD
2
.
5V
_
Demod
DR2VDD
2
.
5V
_
Demod
PLLVDD
B4
_
1
.
2V
B3
_
3
.
3V
5VA
B3
_
3
.
3V
B4
_
1
.
2V
B4 _ 1 . 2V
AD
_
AVDD
B4 _ 1 . 2V
B4
_
1
.
2V
PLLVDD
3
.
3V
_
Demod
3
.
3V
_
Demod
B3 _ 3 . 3V
AD
_
DVDD
B4 _ 1 . 2V
B3 _ 3 . 3V
DR2VDD
2
.
5V
_
Demod
2
.
5VA
3
.
3V
_
Demod
Demod
_
RST
2
TS
_
CLK
2
TS
_
D
0
2
TSVALID
2
TSSTART
2
SCL
2
SDA
2
T
_
IFAGC
4
#IF
_
OUT
4
IF
_
OUT
4
TS
_
D1
2
TS
_
D2
2
TS
_
D3
2
TS
_
D4
2
TS
_
D5
2
TS
_
D6
2
TS
_
D7
2
Title Size
Document Number
Rev
Date:
Sheet
of
Demodulator
1
.0
ISDB-TC90517FG
A2
1
0
15
Tuesday, December 14, 2
0
1
0
Title Size
Document Number
Rev
Date:
Sheet
of
Demodulator
1
.0
ISDB-TC90517FG
A2
1
0
15
Tuesday, December 14, 2
0
1
0
Title Size
Document Number
Rev
Date:
Sheet
of
Demodulator
1
.0
ISDB-TC90517FG
A2
1
0
15
Tuesday, December 14, 2
0
1
0
60mA
closed to Demod
120mA
closed to Demod
closed to Demod
Close to tuner
AGC CIRCUIT
L4
0
7
FB
0
6
0
3
L4
0
7
FB
0
6
0
3
R511 1 00 R R511 1 00 R
C864
1u
C864
1u
C88
0
0.
1u
C88
0
0.
1u
L1
0
FB L1
0
FB
C892 0.
1u
C892 0.
1u
C872
0.
1u
C872
0.
1u
C877 0.
1u
C877 0.
1u
ADJ
OUT
IN
N2
AMS1117-1
.
2V
ADJ
OUT
IN
N2
AMS1117-1
.
2V
3
2
1
4
R522
NC/33R
R522
NC/33R
C878 0.
1u
C878 0.
1u
L4
0
9
NC L
0
6
0
3
L4
0
9
NC L
0
6
0
3
R528 15K R528 15K
C893 1
00
nF
C
0
4
0
2
C893 1
00
nF
C
0
4
0
2
R5
0
9
4
.
7k
R5
0
9
4
.
7k
R519 1M R519 1M
C889 1u C889 1u
R523 1 0 K R523 1 0 K
C86
0
0.
1u
C86
0
0.
1u
R527 1 0 K R527 1 0 K
R521
NC/33R
R521
NC/33R
R529 1 0 K R529 1 0 K
R514 1 0 K R514 1 0 K
R517
0
R
R517
0
R
ADJ
OUT
IN
N1
AMS1117-3
.
3V
ADJ
OUT
IN
N1
AMS1117-3
.
3V
3
2
1
4
C879 0.
1u
C879 0.
1u
L4
0
6
FB
0
6
0
3
L4
0
6
FB
0
6
0
3
C881
15
00
pF
C881
15
00
pF
R533 NC/1K R533 NC/1K
R535 1K R535 1K
L4
0
8
FB
0
6
0
3
L4
0
8
FB
0
6
0
3
L41
0
FB22
0
/3
00
mA
L41
0
FB22
0
/3
00
mA
C886 1u C886 1u
7 5 3 1
8 6 4 2
RP62
33RX4
7 5 3 1
8 6 4 2
RP62
33RX4
C863 0.
1u
C863 0.
1u
C883 NC/1
0
p
C883 NC/1
0
p
R53
0
1K R53
0
1K
R525 1 0 K R525 1 0 K
C855 1u C855 1u
C856 0.
1u
C856 0.
1u
C861 0.
1u
C861 0.
1u
R51
0
1
00
R
R51
0
1
00
R
+
C897 1
00
uF/16V
+
C897 1
00
uF/16V
+
C894 1
00
uF/16V
+
C894 1
00
uF/16V
R513 1 00 R R513 1 00 R
R518
0
R
R518
0
R
C888 0.
1u
C888 0.
1u
C884
18p
C884
18p
+
C857 1
00
uF/16V
+
C857 1
00
uF/16V
R526 1 0 K R526 1 0 K
C866
NC C
0
4
0
2
C866
NC C
0
4
0
2
C896 1
00
nF
C
0
4
0
2
C896 1
00
nF
C
0
4
0
2
C868 0.
1u
C868 0.
1u
R532 NC/1K R532 NC/1K
R512 1 0 K R512 1 0 K
C873
0.
1u
C873
0.
1u
Y2 25
.
4MHz
Y2 25
.
4MHz
1 2
3
7 5 3 1
8 6 4 2
RP61
33RX4
7 5 3 1
8 6 4 2
RP61
33RX4
C869 1u C869 1u
C887 0.
1u
C887 0.
1u
C89
0
0.
1u
C89
0
0.
1u
C882
18p
C882
18p
C895 1
00
nF
C895 1
00
nF
C87
00
.
1u
C87
00
.
1u
L412 FB
0
6
0
3
L412 FB
0
6
0
3
R52
0
1K2 R52
0
1K2
C871 0.
1u
C871 0.
1u
L411 FB
0
6
0
3
L411 FB
0
6
0
3
C874 1u C874 1u
C865
1u
C865
1u
R516
33R
R516
33R
C885 1u C885 1u
C859 1u C859 1u
R524 1 0 K R524 1 0 K
C867 1u C867 1u
C858 0.
1u
C858 0.
1u
+
C891 1
00
uF/16V
+
C891 1
00
uF/16V
C862 0.
1u
C862 0.
1u
U55
TC9
0
517FG
U55
TC9
0
517FG
VSS
5
0
STSFLG
0
51
SLOCK
52
RERR
53
RLOCK
54
RSEORF
55
VDDC
56
VSS
57
PBVAL
58
SBYTE
59
SRDT
6
0
SRCK
61
VSS
62
VDDC
63
VDDS
64
TSMDO
1
XSEL1
2
XSEL 0
3
VSS
4
SLADRS1
5
SLADRS 0
6
AGC I
7
S _ INFO
8
AGCCNTI
9
AGCCNTR
1 0
CKI
11
TNSCL
12
VDD33
13
TNSDA
14
VSS
15
VDDC
16
PLLVSS
17
X
0
18
X1
19
PLLVDD
2
0
FIL
21
AD
_
AVDD
22
AD
_
AVSS
23
AD
_
VREFP
24
AD
_
VREFN
25
AD
_
VREF
26
ADQ
_
AIN
27
ADQ
_
AIP
28
ADI
_
AIN
29
ADI
_
AIP
3
0
AD
_
DVSS
31
AD
_
DVDD
32
VSS
33
DR1VDD
34
VDDS
35
VDDC
36
VSS
37
STSFLG1
38
DTCLK
39
DTMB
4 0
TSMD1
41
SYRSTN
42
DR2VDD
43
VSS
44
SCL
45
SDA
46
VSS
47
DR1VDD
48
VDDS
49
R531 1K R531 1K
R515 1 0 K R515 1 0 K
C875 0.
1u
C875 0.
1u
C876 0.
1u
C876 0.
1u