Philips MCD703/37, Руководство по обслуживанию

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7 - 1 7 - 1
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AM RF REG AM OS
C
VCC1 FM IF OUT GND1 IF BUFF ST AMIF OUT FMIF IN AMIF IN AGC
DE
T
ST/M
O
FM/A
M
L OUT
R OUT
MPXI
N
DET OUT
FM OS
C
VCC2
RF OUT
GND2
RF IN
1.
2
1.
2
4.
5
4.
5
2.
2
0
4.
5
4.
5
4.
5
1.
2
1.
2
0.
1
3
.7
4.
5
4.
5
1.
2
1.
2
1.
2
0.
1
3.
7
4.
4
4.
4
0
0.
9
IC 3 L A 1823
X-IN BO
5
CE DI CL DO BO
1
BO
2
BO
3
BO
4
IO
1
IF IN
IO
2
AM
IN
FM IN
VDD
AOUT
1
AIN1
PD
1
PD
2
AIN2
AOUT
2
VS
S
X-OUT
1 2 3 4 5 6 7 8 9 10 11 12
13 14 15 16 17 18 19 20 21 22 23 24
IC 4
LC 72130
1
2
3 4
5
6
T 205B BL ACK
C1
47P
C2
30P
C4
10u F
C5
3.3u F
1
2
3 4
5
T 5118
1
2
3 4
5
T 303B
1
2
3 4
5
T 403B
D1
SCV 220
D2
SCV 220
D3 I384
CF 1
10.7M
CF 3
450J
CF 2
10.7M
X1
4.5M
C8
0.22u F
C9
0.33u F
C6
3.3u F
C1 0
3.3u F
C1 1
4.7u F
C1 2
0.47u F
C1 3
100u F
C1 4
100u F
C1 7
100P
C2 2
223
C2 6
223
C2 3
223
C1 8
100P
C2 7
203
C3 2
102
C2 8
103
C2 4
223
C3 3
103
C1 9
102
C2 5 203
C3 5
222
C2 9
103
C3 6 3P
C3 7
7P
C3 8
36P
C3 9
5P
C2 0
102
C4 0
36P
C3 0
103
C4 1
102
C3 1
103
C4 2
501
C3 4
102
C4 3
18P
C2 1 18P
C4 4
15P
C3
47P
R1
47K
R7
100k
R9
3.3K
R1 0 100
R1 2
1K
R1 3 1K
R1 9 10K
R1 4
1K
R2 0 10K
R2 2
180
R2 1
10K
R1 5
1K
R2
47K
R3
47K
R2 3
2.2K
R2 4 330
R1 6
1K
R2 5
1.5K
R2 7
220
R2 6
1.5K
R2 8
220
R4
47K
R1 1
100
R8
100K
R1 7 1K
R2 9
10
R5
47K
R3 0
10
R6
47K
R1 8
1K
Q1
9014
Q2
9014
ANT 1
L1
10u H
L2
5T 5 L3
6T 5
L4
6T 5
DZ 2
5V 1
DZ 1
5V 1
C7
3.3u F
1
2
3
4
J1
CON4
1
2
3
4
5
J2
CON5
C1 5
100u F
C1 6
100u F
AM ANT
DO
CL
DI
CE
GND
9V
R OU T
GND
L OU T
C4 8
203
C4 7
223
C4 5
470P
C4 6
100u F
C4 9
103
R3 6
2.2K
R3
5
2.2K
C5 1
682 C5 0
682
R?
82K
R3 4
100K
Q3
9014
R?
100K
1K
CIRCUIT DIAGRAM - TUNER BOARD