SERVICE MANUAL
Document No
Date of Origin
Date of REV
51-L-DSR004
98-10-21
PAGE REV.
0
PAGE
80 /102
S-00-005(96.03.27)
REV.1
4.8
CH_MUX INT
SAMSUNG ELECTRO-MECHANICS CO., LTD
Custom
2
16
Friday, October 16, 1998
SEMCO-BSKYB
Title
Size Document Number
Rev
Date:
Sheet of
3V3
3V3
3V3
U13
74LCX257
SEL
1
1A
2
1B
3
1Y
4
2A
5
2B
6
2Y
7
GND
8
3Y
9
3B
10
3A
11
4Y
12
4B
13
4A
14
G
15
VCC
16
U15
74LCX257
SEL
1
1A
2
1B
3
1Y
4
2A
5
2B
6
2Y
7
GND
8
3Y
9
3B
10
3A
11
4Y
12
4B
13
4A
14
G
15
VCC
16
U14
74LCX257
SEL
1
1A
2
1B
3
1Y
4
2A
5
2B
6
2Y
7
GND
8
3Y
9
3B
10
3A
11
4Y
12
4B
13
4A
14
G
15
VCC
16
C37
104
C38
104
C39
104
R97 100
R98 NC
R66
NC
BLKOUT
BYTEN
BSKYB_BYTECLK
BSKYB_BYTECLKVAL
BSKYB_NOTLINK
L_BYTECLK
L_BYTECLKVALID
L_PACKETCLK
L_ERROR
BSKYB_PACKETCLK
F_START
BSKYB_INERROR
CH_ERROR
FECD0
BSKYB_DATA0
FECD1
BSKYB_DATA1
FECD4
BSKYB_DATA4
FECD5
BSKYB_DATA5
FECD3
BSKYB_DATA3
FECD2
BSKYB_DATA2
FECD7
BSKYB_DATA7
FECD6
BSKYB_DATA6
L_DATA0
L_DATA1
L_DATA2
L_DATA3
L_DATA4
L_DATA5
L_DATA6
L_DATA7
L_ERROR
TSI_ERROR
/RST
SPARE
/RESET_ICAM