SERVICE MANUAL
Document No
Date of Origin
Date of REV
51-L-DSR004
98-10-21
PAGE REV.
0
PAGE
82 /102
S-00-005(96.03.27)
REV.1
4.8
TUNER & QPSK INT
SAMSUNG ELECTRO-MECHANICS CO., LTD
A3
4
16
Friday, October 16, 1998
SEMCO-BSKYB
Title
Size Document Number
Rev
Date:
Sheet of
3V3
5VA
5VD12V 7.5VBT 24V
3.3VD
3.3VA
5VA
24V
5VD
5VD
3.3VD
5VD
5V
3.3VA
3.3VD
5V
5VD
5VD
5VD
5VD
5VD
7.5V
7-GND
14-VCC(5VD)
FECD0
FECD1
FECD2
FECD3
FECD4
FECD5
FECD6
FECD7
U103A
74HC4066
A
1
B
2
C
13
U103B
74HC4066
A
10
B
11
C
12
C104
104
C105
47U
R112
2.7K
R113
2.7K
C106
104
L106
10uH
C103
104
R122
1K
C114
104
C113
47U
R126
1K
R127
1K
R124
220
R129
220
C118
105
C121
105
R125
510
R131
510
C119
105
C120
105
C127
104
C126
104
C125
104
X100
15MHz
C116
18P
C117
18P
TP118
TP119
TP100
TP101
C112
47U
TP109
TP110
TP111
U106
KA7805
IN
1
GND
2
OUT
3
C124
47U
U101
KA317
1 2 3
R104
300
R103
20K
R102
5.1K
R101
33K
R100
15K
Q100
C114
C100
104
C102
10/50V
Q101
A928
Q102
A928
R107
200
D100
BYW32
C101
103
R110
1.2K/3216
Q106
C114
Q107
C114
Q104
C114
R106
1.2K/3216
C108
100P
C107
100P
R114
470
R115
150K
F100
X065
R109
NC
R108
NC
Q105
NC
U102
NE555
GND
1
VCC
8
TRC
2
OSC
7
OUT
3
RST
4
TRS
6
CTR
5
J100
W11
1
2
3
4
5
6
7
8
9
10
11
L100
BC3560
L101
BC3560
L102
BC3560
L103
BC3560
L105
BC3560
U104
MC33269
VO
2
GND
1
VI
3
C111
104
C110
47U
T100
TBDE381119A
NC0
1
LNB_PWR
2
NC1
3
NC2
4
NC3
5
5V
6
AGCIN
7
I
8
Q
9
VT_28V
10
NC4
11
NC5
12
SCL
13
SDA
14
C122
47U
C123
104
TP114TP115TP116TP117
R128
NC
TP107
TP108
TP106
R117
2.7K
R105
10K
Q103
C114
R120
330
TP112TP113
C130
104
C129
104
C128
104
C115
47U
U105
MC33269
VO
2
GND
1
VI
3
U100
BCM4200_KEF
GND4
25
VDD4
26
TEST_OUT
27
IRQ
28
RESET
29
SCL/SCK
30
ADDR0/SS
31
ADDR1/MISO
32
SDA/MOSI
33
ADCLK
34
GND5
35
VDD5
36
AGND0
37
AVDD0
38
GND6
39
VDD6
40
GND0
1
VDD0
2
TEST0
3
TEST1
4
PS_CLK
5
PS_VALID
6
PS_ERR
7
PS_SYNC
8
GND1
9
VDD1
10
PS_DATA7
11
PS_DATA6
12
PS_DATA5
13
PS_DATA4
14
GND2
15
VDD2
16
PS_DATA3
17
PS_DATA2
18
PS_DATA1
19
PS_DATA0/SOUT
20
VDD3
21
GND3
22
XTALI/FS
23
XTALO
24
RD_I5
65
AGC_CTL
41
RD_I4
66
RD_I3
67
LNB_CTL
42
RD-I2
68
RD_I1
69
CLK_SEL
43
RD_I0
70
VDD9
71
SPI_I2C
44
GND9
72
VDD10
73
VDD7
45
GND10
74
RD_Q5
75
GND7
46
RD_Q4
76
RD_Q3
77
AVDD1
47
RD_Q2
78
RD_Q1
79
RA_I+
48
RD_Q0
80
RA_I-
49
AVDD2
50
VCOM
51
VREF
52
AGND1
53
RA_Q-
54
RA_Q+
55
AGND2
56
AVDD3
57
AGND3
58
TCK
59
TMS
60
TDI
61
TDO
62
GND8
63
VDDNW
64
R116
2.7K
R111
10K
R119
NC
R118
10K
R121
NC
R123
100
TP102
TP103
TP104
TP105
R133
0
C132
47/50V
C133
330U
C134
330U
C135
470/10V
C136
470/10V
C131
220/35V
C137
470/10V
D101
1N4003
R134
NC
D102
1N4003
R135
NC
R136
NC
R130
0
C109
103
R132
NC
C138
1U/50V
C139
18
LNB_PWR
QPSK_SCL
CH_CTRL
QPSK_SDA
BT
FECD[0..7]
BLKOUT
BYTEN
CH_ERROR
F_START
LNB_OFF
SHORT
LNB_PWR
POLARITY
22K_ON/OFF
CH_RST
QPSK_SCL
CH_SYNC
QPSK_SDA