Circuit Diagram - Tuner Board - Philips MCM700 Service Manual

CIRCUIT DIAGRAM - TUNER BOARD

TUNE1
KST-F404
1
ANT
FM FRONTEND
JACK1
4
FM RF GND
C8
3
104
FM ANT C3
104
2
AM RF GND
1
AM ANT
TUNER1
CN3
2
1
2P
J2
VCC VCC
000
J3
000
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9 - 1
R1 R2
7 T104
IF-OUT
120 120
C1
R5
330
8
OSC-OUT
10uF
R6
330
C10
100uF
R10
C13
220
R8
103
2.2K
R9
+FM
100
C9
100uF
VCC1
R11
RV1
R15
100K
56K
0
R38
0
C21
1uF
C6
102
VCC1
RDS ONLY
R36
33K
C12
33pF
C2
104
CF1
10.7M
AM/FM
C4
104
1
RIPPLE FM-IF2-IN
2
AM-RF AM-AFC
3
FM-GND
4
RF-GND1
5
FM-OSC WRITE-EN
6
AM-OSC DATA
7
Vcc1 CLOCK
8
TUNE DGND
9
VCO XTAL
10
AF-OUT MO/ST
R12
11
MPX-IN VDD
1K
C22
224
R27
2K2
C26 C7
474 C31 104
C30
C27 C32 VCC2
15pF
2.2uF
474 470n
C28
1uF
T6
4 3
20402
VCC
2
C33
6 1
82pF
BIRDY FILTER
T7
C41
R29
100uF
R28
511BE/43462
820
820
DISCRIMINATOR
R17
R19
22K
1M
C20
R13 C42
MPX
224
1K
222
C43
Q4 224
C39
BC857C C40
153
153
22n-USA 22n-USA
BUFFER AMPLIFIER
9 - 1
CF2
10.7M
IC1
TEA5762
33
32
31
P1 P1
30
P0 P0
22K
29
R18
R21 470
28
27 R22 470
C14 102
R14
26
150K
C15
25 X1
C19 C17 C18
12P
222 221 221
24 75K
23 C16
VDD
221
7.8V
R3 R4
VCC1
120 120
C5 C34
104 223
R37
11V
VCC2
C23 0 R33
224
5K6
Q3
8.2V
R30
R34
VDD
BC547C
150
C29 47K
1uF
Q2
R41
C35
100 BC857B
8.9V
+FM
R31
68K
22uF
R42 R43
8.2V
R40 R32
4.7K 4.7K
0 10K
C24
224
Q1 R16
9014
1M C25
224
Q5
R25 R24
9014
47K
47K
R46 R47
1K 1K
CN1
ENABLE/MPX
1
DATA
2 4P
CLOCK
3
ST/NO
4
R23
470
CN2
VCC
1
RIGHT
2
SGND
3
LEFT
4 5P
5
MPX
R7
330
R35
22
R44 R45
000 000
AM/FM