Circuit Diagram - Tuner Board - Philips MCD728 Service Manual

CIRCUIT DIAGRAM - TUNER BOARD

TUNE1
KST-F404
1
ANT
CN4
2
1
2P
JACK1
4
FM RF GND
C8
3
104
FM ANT
2
AM RF GND
1
AM ANT
TUNER1
CN3
2
1
2P
7 - 1
R1 R2
7 T104
IF-OUT
120 120
R5
FM FRONTEND
330
8
OSC-OUT
R6
330
C10
100uF
C13
R8
103
2.2K
R9
+FM
000
C3
104 C9
100uF
VCC1
RV1
100K
C22
224
VCC
VCC
J2
J3
000
R45
C21
000
1uF
R44
000
C20
000
R40
102
0
MPX
C2
104
CF1
10.7M
CF2
CF4
10.7M 10.7M
C1
AM/FM
10uF
IC1
C4
TEA5762
104
1 33
RIPPLE FM-IF2-IN
2 32
AM-RF AM-AFC
3 31
FM-GND P1
4 30
RF-GND1 P0
5 29
FM-OSC WRITE-EN
6 28
AM-OSC DATA
7 27
Vcc1 CLOCK
8 26
TUNE DGND
R11
9 25
VCO XTAL
56K
10 24
AF-OUT MO/ST
11 23
MPX-IN VDD
C6
R27
2K2
331
C26 C7
474 C31 104
C27 C30 C32 VCC2
15pF
2.2uF
474 470n
C23
C28 224
1uF
4 3
VCC
2
C33
R41
6 1
82pF
100
T7
C41
6295
R29
100uF
R28
R42
820
820
DISCRIMINATOR
4.7K
R17
1M
Q1
C42
9014
224
C43
224
C39
C40
153
153 R46
1K
22n-USA 22n-USA
7 - 1
P1
P0 ENABLE/MPX
DATA
22K
R18
CLOCK
ST/NO
R21
470
R22 470
R23
C14 102
R14
470
150K
C15
X1
C19 C17 C18
12P
222 221 221
75K
C16 VCC
VDD
221 RIGHT
SGND
7.8V R3 R4
VCC1
120 120
C5 C34
104 223 R7
330
R37
11V
VCC2
0
R33
4K7
Q3
8.2V R30
VDD R34 R35
BC547C
150
C29 47K 22
1uF
Q2
C35
BC857B
8.9V
+FM
R31
68K
22uF
R43
8.2V
R32
4.7K
AM/FM
10K
C24
224
R16
1M C25
224
Q5
R25 R24
9014
47K
47K
R47
1K
CN1
1
2 4P
3
4
CN2
1
2
3
LEFT
4 5P
5
MPX