Fm Stereo + Nicam (Fm-St-Nic) - Philips VR120 Service Manual

Circuit diagrams and PWB layouts, Wiring diagram
7.8

FM Stereo + Nicam (FM-ST-NIC)

1 2
5VA 5VD 9VASW
A
5VA 5VD 9VASW
3765
B
SCL
100R
3767
SDA
100R
2771
GNDFMS
47p
8
2792
SIF2
C
47p
7
2774
AFV
D
attention for pos. 7761 solder direction!
GNDFMS
2780
4768
E
2765
4764
F
1 2
VR120
3 4
5.2V
7
10
I760
TP TP
12
7761
I761
13
MSP3415D
I762
1.5V 3
FM1
FM2
DEMODULATOR
I763
2 NICAM A
1.5V ANA_IN1+
NICAM B
MONO
I764
IDENT
3.8V 43 MONO-IN IDENT
A/D SCART-L
41 SC1-IN-R
SCART-R
A/D
3.8V
SCART 1
I766
40 SC1-IN-L
3V
38 SC2-IN-R
37 SC2-IN-L
SCART 2
SCART
NC NC NC NC
25 29 35 39 44 17 21 28
GNDFMS
GNDFMS GNDFMS GNDFMS
3 4
7. 71
5 6
6760
3760
GNDFMS
1N4148
2761
GNDFMS
100n
GNDFMS
2764
GNDFMS
10n
2766
GNDFMS
10u
I790
2.6V 8V
8 9 4 42 33 32 34
TP TP
I2SL/R
S1...4 I2SL/R
DACM-R
D/A
LOUDSPEAKER R
LOUDSPEAKER
DACM-L
LOUDSPEAKER L
D/A
DFP
HEADPHONE R
HEADPHONE L
SC1-OUT-R
SCART-R
D/A
SCART 1
SC1-OUT-L
SCART-L
D/A
Switching Facilities
TP TP
20 1 5 2.4V 6
5.1V 6.2V 14 15
1761
I774 I775 I776
F761 5762
HC-49/U
10u
18M432
GNDFMS GNDFMS GNDFMS
5VA
5 6
7 8
5VD
9VASW
I789
11
5.16V
I786
19
5.1V
I785
22 5.1V
26
GNDFMS GNDFMS
27
I784
18
TP
I783
36
3.7V
I782
23
24
GNDFMS
30 4767
3.8V
31 4768
3.8V
TP
GNDFMS
16
.. OSCILLOGRAMS
..V MEASURED IN PLAYBACK MODE
..V MEASURED IN RECORD MODE
7 8
9 1761 E6
2761 A6
2764 A6
2765 D8
Interconnections:
2766 A6
2767 B8
AF page 73
2768 B8
AL page 72 2769 B7
2771 C2
AIO1 page 66
A 2774 D2
2776 D7
AIO2 page 65
2777 D2
DE page 67
2787 F5
2788 F6
FM ST page 70
2790 F5
FM NIC-page 71
2791 F5
2792 C2
FV page 69
2793 E7
FOME page 78
2794 E8
3760 A6
I/O page 77
3763 A7
B
PS page 64
3764 A8
3765 B2
VPO page 76
3767 B2
VS page 75
4759 A5
4762 F3
VS_S page 74
4763 F3
4764 F3
4765 F4
4767 D8
4768 E8
5760 A8
5761 F5
C
5762 E5
6760 A6
6761 A7
7761 B3
9724 A8
F760 E3
F761 E5
I760 B2
I761 B2
I762 B2
I763 C2
D I764 C2
I766 D2
I768 E3
11
I772 E4
I774 E5
AFR
I775 E6
I776 E6
AFL
I782 D7
I783 D7
I784 C7
I785 B7
I786 B7
E
I787 A6
I788 A6
I789 B7
I790 B5
F
FM-ST-NIC 8920-7
9