Samsung SCH-A105 Service Manual page 63

11-3 RX Circuit Diagram
1 2
3 . 0 R
C N 4 00
1
1
2
2
3
3
A N T CO N
A
L 4 9 2
N C
L 4 9 0
L 4 9 1
4 . 7 nH
N C
3
C N 4 01 2
2
O U T
6
G N D 4
G N D 3 5
4
G N D 2
G N D 1 3
I N
1
B
C 4 1 3
N C
4 5 6 7 8 9 1 01 11 2 1 31 41 51 61 7 1 81 92 02 12 2 2 3 2 42 52 62 72 82 93 03 13 2
A N T R X 3
1
T X
2
F 4 0 1
T X O UT P U T
C
C N 4 02
1
3
5
4 C 2 0 0
3 3 U F
2 6 . 3 V
C 2 7 3
5 6 P F
3 . 0 AV
U 2 0 0
R 2 0 0
D
1 0 K
1
S E N D_ E N D A O U T
R 2 0 2 2 0 0 K
2
A -
R 2 0 4
3
A +
2 . 2 K
C 2 0 4
4
N C G N D
M I C
C 2 0 7
2 2 0 PF
3 . 0 AV
R 2 0 7 R 2 0 8 R 2 8 1
3 . 3 K 1 . 5 K 5 . 1 K
E C 2 1 1
C 2 1 2
N C
1 0 0 NF
*
S P K +
S P K -
D 2 0 0
3
C 2 1 5 C 2 1 6 3 . 0 AV
N C N C
C 2 1 8
1 2
1 0 0 NF
T X _ AU D I O
C 2 5 3
R X _ AU D I O R 2 1 0
1 0 0 NF
1 K
F
3
3 . 0 AV
D 2 0 1
C 2 7 4 R 2 8 4
N C N C
1 2
C O _ DI N
G
V B A TT
3
3 . 0 V
D 2 0 2
2 1
B U Z
1
R 2 1 3
3
1 1 K 3
Q 2 0 0
2
Q 2 0 1
H
1 2
3 4 5
R 4 5 0
0
I M D _C T L
L 4 0 0
Q 4 0 0
C 4 0 0
1 4 7 0 PF
R 4 0 5 C 4 0 1
2 K 1 0 0 NF
C 4 0 7 C 4 0 8
4 7 P F 1 N F
C 4 1 1
2 0 P F
C 4 1 2
R 4 0 9 L 4 0 2
N C 3 9 n H 1 0 U F
6 . 3 V
D 4 0 1
L 4 0 6
8 . 2 nH
C 4 1 9 4
L 4 0 4
Q 4 0 2
1 N F
6 . 8 nH
C 4 3 2
C 4 2 3
2 1 N F L 4 2 3
1 3 N C
3 9 n H
C 4 2 0
1 N F
L 4 0 9 L 4 1 0 R 4 1 4 C 4 2 8
C 4 3 0
6 . 8 nH 5 6 n H 1 0 0 K 0 . 5 PF
1 N F
C 4 3 1
R 4 1 7
4 7 N C
V I N
R 2 0 1
1 2 0 K
8
V C C C 2 0 1
C 2 0 5
1 0 U F
7 1 0 N F
B O U T J A C K_ S 6 . 3 V
6
B -
R 2 0 3
5
3 . 0 AV
B + 1 0 0 K
R 2 0 5
G A T E
1 0 0 K
3 . 0 AV
R 2 0 6 C 2 0 8 C 2 0 9
1 0 0 NF 1 0 N F
4 . 7 K
C 2 5 0
3 3 U F
6 . 3 V
C 2 1 0
C 2 5 1
1 0 0 NF
3 K
R 2 0 9 1 M
4 4 4 3 4 2 4 1 4 0 3 9 3 8 3 7 3 6 3 5 3 4
1
3 3
M I C 1 -
N C 1
C 2 5 2 2
N C 1 3 3 2 C 2 1 7
1 0 0 NF V F R -
1 0 0 NF
3
3 1
M I C 2 +
V F R +
4
3 0
N C 2 M I C 2 -
5
2 9 C 2 1 9
U 2 0 2 N C 1 2
V L R -
0
6
N C 1 1 2 8
V L R +
7
2 7
N C 1 0
C 2 2 0 N C 3
8
N C 2 6
L O
G N D P
9 2 5
N C 4 M C L K
1 0
2 4
F S
D R
1 1
2 3
N C 5 N C 9
3 . 0 V
1 2 1 3 1 4 1 5 1 6 1 7 1 8 1 9 2 0 2 1 2 2
R 2 1 1
5 6 K
2
3 4 5
SAMSUNG Proprietary-Contents may change without notice
6 7
3. 0 R
R4 0 7
C4 0 3
C4 0 4 10
10 0 N F
33 P F
C4 0 9
1N F
L 4 52
2 2 nH
R4 1 0
10 K , 1%
(1 % )
F 4 0 2
C 4 1 6
4 C4 9 7 C4 1 8
1 0 N F
1N F 30 P F
V D D
2 5 1 6 1
I N O U T R F I F
G G G G
5 2
L 4 0 8 C4 7 3
G N D L O S R C
1 3 4 6 N C NC
L O
C4 2 6
3 L4 2 0
NC
15 0 n H
U 4 00
R4 1 6
22 0
C4 2 9 C4 9 5
10 N F 22 P F
L4 0 5
C4 6 7
6. 8 n H
10 N F
3. 0 V
U 2 0 1
8 I N A 1
O U T A
C4 5 9
7 O U T B 3 C5 7 3
E N A C5 7 2 10 N F
10 U F
6. 3 V 10 0 P F
6 4
I N B B Y P B
3. 0 B
5 2
E N B G N D
C 2 0 6
1 0 N F
C2 0 2 C2 0 3 C4 5 1
33 U F 10 0 P F 10 N F
6. 3 V
U4 0 3 L4 1 2
R 2 8 3
N C
1 5
V I N I N O U T
C4 4 1
2
C 4 3 8 G N D
10 N F
R 2 8 2 C 4 4 0 1 0 U F R4 2 0
C4 4 3
3 E N 4
1 0 0 NF 6 . 3 V 10 0 K
1 0 N F R E F _ B Y P 10 U F
6. 3 V
_ S L EE P
P C M _C L K C4 4 5
10 N F
P C M _S Y N C
U4 0 4
1 5
V I N I N O U T
2
C O _ DO U T G N D
C 4 6 2 C4 6 3
C T L _I N
C 4 6 0 E N
3 4 10 N F
_ C H IP _ S EL E C T 1 0 N F 1 0 U F
R E F _ B Y P
6 . 3 V
C T L _C L K
C4 6 4
10 N F
G A T E
C4 6 5
22 0 P F
6 7
11-3
8 9 1 0
C4 6 9
L4 2 1
1N F
27 0 n H
L4 0 1
10 0 n H R4 0 8
C4 1 0
(c o i l) 15 0 , 1% U4 0 7
4. 7 N F
2 R F 2 3
G N D
C4 1 4
C4 6 8 6 V B
33 P F 4 10 N F
V A
5 C O M R F 1 1
3 3. 0 R
Q4 0 1
2 C4 2 2
L4 0 7
9P F
39 n H
(1 0 0 5)
R 4 4 1
Q 4 1 0
1 0 0 K
R4 1 5
4. 7
3
1
MO D E
C 4 7 5
1 0 0 N F
2
C 4 7 4
3. 0 B
1 0 0 N F
L4 1 1
C5 9 9
U 4 0 1
10 N F
3 7 27 28
4
C4 3 5
V D D 1 H I P X 8
10 U F 6
C4 3 3 C4 3 4
V D D 2 C
6. 3 V
3. 0 V 10 N F 10 0 P F 14
V D D 3 R X Q D 3
15
V D D 4 R X Q D 2
17
V D D 5 R X Q D 1
20
V D D 6 R X Q D 0
24
V D D 7
35
V D D 8
44
V D D M R X I D 3
C4 9 0 C4 9 1 R X I D 2
36
TC X O T C X O
10 N F 10 0 P F
C4 3 6 10 0 P F
11
RX I F C D M A _ I F F M _ R X _ Q D A T A _ R X I D 0
12
_R X I F C D M A _ I F /
R M _ R X _ C L K
R4 8 5 47 0 K F M _ R X _ S T B
7
RX _ A GC _ A DJ V C O N T R O L
F M _ R X _ I D A T A _ R X I D 1
10
3. 0 V
F M _ I F F M _ I F
9
C4 3 7
F M _ I F _ F M _ I F /
10 0 P F G N D 1
G N D 2
32
A D C _ C L K _ S B C K S B C K _ S L E E P / G N D 3
30
R4 1 9
A D C _ E N A _ S B S T S B S T _ I D L E / G N D 4
31
33 K A D C _ D A T A _ S B D T S B D T _ F M / G N D 5
26
S B I _ E N G N D 6
29
_ S L E E P F M _ S L O T G N D 7
G N D 8
33
D N C G N D 9
C4 8 4
G N D 1 0
10 0 N F
21 22 25
3. 0 R
C4 4 7
12 0 P F
C4 3 9
C4 4 8
1N F L4 1 3
C4 4 4
68 n H 5P F
10 N F
C4 5 6
12 0 P F
3. 0 A V
C2 1 3 C4 5 4
33 U F
10 0 P F
6. 3 V
Ch a n ge d by : Da t e C h a ng e d : 2 0 0 0 . 5 . 4
MS J
8 9 1 0
Circuit diagrams
1 1 1 2
A
F4 0 3
L4 2 2
C4 7 1
C4 7 2
47 0 n H
NC 1N F
9
IN 4 FM _ I F
OU T
G8 G7 G6 G5 G4 G3 G2 G1
C4 7 7
10 8 7 6 5 3 2 1 1N F
C4 7 0
FM _ I F_
9P F
B
F4 0 0 L4 0 3
C4 1 5
L4 5 0
27 0 n H
C4 2 1
1N F
22 0 n H (c o i l )
N C
10 IN + OU T + 5
RX I F
9 OU T - 4
IN -
G1 G2 G3 G4 G5 G6 _R X I F
C4 2 4
18 P F
1 2 3 6 7 8 C4 2 5
1N F
C
38
CH I P X8
C _ R X _ Q D ( 0 : 3 )
39 C _ R X _ Q D ( 3 )
40 C _ R X _ Q D ( 2 )
41 C _ R X _ Q D ( 1 ) C _ R X _ Q D ( 0 : 3 )
D
42
C _ R X _ Q D ( 0 )
C_ R X _I D ( 0: 3 )
45
C _ R X _ I D ( 3 )
46 C _ R X _ I D ( 2 )
48 C _ R X _ I D ( 0 )
1
FM _ C LK
2
FM _ S TB
47 C _ R X _ I D ( 1 )
3
5
8
13
16
E
18
19
23
34
43
C4 4 6
R4 2 3
10 1N F
RX _ I F_ I N
R4 2 6
10 K
D4 0 2
F
R4 2 7
10 K
RX _ I F_ D O
D4 0 3
C4 5 8
4. 7 N F
G
H
C O M P A N Y N A M E
En g i ne e r :
Ad d r es s
Dr a w n b y : Ci t y
TI T L E: Si z e :
R& D CH K :
S C H - A 1 0 5 A2
DO C CT R L C H K : 12 1 8 A
R X
MF G EN G R C H K :
RE V :
Ti m e C h a ng e d : QA C HK : Dr a w i n g N u m b e r : P a g e :
2. 4
2
1 1 1 2