Philips MCD 908, Service Manual

Page: 16 / 33

RIPPLE
1
AM-RF
2
FM-GND
3
RF-GND1
4
FM-OSC
5
AM-OSC
6
Vcc1
7
TUNE
8
VCO
9
AF-OUT
10
MPX-IN
11
LP
F
12
MUTE
13
LE
FT
14
R
IG
H
T
15
PI
LF
IL
16
IF
-G
N
D
17
FM
D
EM
18
A
FC
-
19
A
FC
+
20
FS
I
21
V
C
C
2
22
VDD
23
MO/ST
24
XTAL
25
DGND
26
CLOCK
27
P1
31
P0
30
WRITE-EN
29
DATA
28
FM-IF2-IN
33
AM-AFC
32 FM
-I
F1
-I
N
37
A
M
-I
F2
36
FM
-I
F2
35
V
ST
A
B
B
34
V
ST
A
B
A
38
A
M
/F
M
39
A
M
-M
IX
O
U
T
40
A
M
-I
F1
-I
N
41
R
F-
G
N
D
2
42
N
C
43
A
G
C
44
IC1
TEA5762
C4
104
C10
100uF
VCC1
R11
56K
RV1
100K
R12
100K
C22
224
C26
474 C27
474
R27
2K2
C28
1uF
C30
2.2uF
C31
15pF C32
470n
C7
104
VCC2
VDD
X1
75K
R14
150K
C14102
C15
12P
R22 470
R21
470
R18
22K
C19
222
C17
221
C18
221
P0
P1
C16
221
R23
470
1
2
3
4
CN1
4P
R4
120 R3
120
C34
223
VCC1
C24
224
C25
224
R7
330
R25
47K R24
47K
D
Z1
38
4
R35
22
C23
224
R33
4K7
R34
47K
Q3
BC547C
Q2
BC857B
R31
68K
C35
22uF
R32
10K
R30
150
C33
82pF
C29
1uF
+FM
VDD
VCC2
AM/FM
R29
820
R28
820
C40
153
C39
153
1 3
2
CF1
10.7M
1 3
2
CF2
10.7M
R2
120 R1
120
R5
330
1
2
3 4
6
T3
6297
1
2
3 4
6
T2
6297
1
2
3 4
6
T1
6298
1
2
3 4
6
T5
6296
C2
104
C1
10uF
1
2
3 4
6
T7
6295
3
2
1 6
4
5
T4
6299
ANT
1
G
N
D
2
G
N
D
3
G
N
D
4
V
T
5
B
+
6
IF-OUT
7
OSC-OUT
8
G
N
D
9
G
N
D
10
FM FRONTEND
TUNE1
KST-F404
R6
330
R8
2.2K
R9
000
C13
103
C3
104
C9
100uF
+FM
1
2
7
D3A
HN1V02H
5
3 6
D3B
HN1V02H
R20
22k
R26
47
C36
12pF
C38
2pF
C37
470p
R10
220
D2
BAS316
C11
33pF
CT1
11P
C21
1uF
R13
100K
C20
102
MPX
MPX
ST/NO
ENABLE/MPX
DATA
CLOCK
VCC
RIGHT
LEFT
SGND
FM RF GND
4
FM ANT
3
AM RF GND
2
AM ANT
1
JACK1
TUNER1
C8
104
22n-USA 22n-USA
DISCRIMINATOR
7.8V
11V
8.2V
8.9V
8.2V
AM/FM
1
2
3
4
5
CN2
5P
R37
0
R40
0
C5
104
C6
331
Q1
9014
Q5
9014
R42
4.7K
R43
4.7K
R16
1M
R41
100
R46
1K
R47
1K
C41
100uF
C42
224
C43
224
R17
1M
R45
000
R44
000
VCC
J2
000
J3
000
VCC
VCC
1
2
CN3
2P
T104
1 3
2
CF4
10.7M
1 3
2
CF3
450B
1
2
CN4
2P
8 - 1
CIRCUIT DIAGARM - TUENR BOARD
8 - 1