3-22
3-22
FM Stereo (FM-ST)
STEREO DECODER
STANDARD
AF SWITCH
SC1
AF -
AMPL. 1
DIGITAL
ACQUISITION
OSCILLATOR
CLOCK
IDENTIFICATION
FM DEMODULATOR
NARROW-BAND PLL
FM DEMODULATOR
NARROW-BAND PLL
SC2
AF -
POWER
SUPPLY
AMPL. 2
DIGITAL
NARROW-BAND PLL
PILOT
B/G, D/K, I, M(Korea)
IIC-BUS
TRANSCEIVER
STEREO ADJUST
2.5V
to AF
2.7V
1
2
3
4
5
6
0V
2.5V
2789 A6
3762 E3
3766 E6
3768 A3
3769 E6
3770 C2
3771 E5
3775 B7
3776 B8
4760 C7
4761 D7
4769 C8
5763 C8
1760 E5
2760 E3
2763 E3
2770 D4
2772 A3
2773 A3
2775 A5
2778 A5
2779 E6
2.9V
2.5V
2.7V
2.8V
5V
for German stereo only
2.5V
7760 C5
9602 E2
9703 E3
C760 E2
I770 C8
I791 E3
I792 E3
not used
I793 A3
7
8
1
2
3
4
5
..
11
2.5V
6
7
8
A
B
C
D
E
A
B
C
D
E
2.5V
1.5V
2.5V
2.5V
..V MEASURED IN RECORD MODE
..V MEASURED IN PLAYBACK MODE
OSCILLOGRAMS
2780 E5
2781 A5
2782 C7
2783 E5
2784 C2
2785 D4
2786 D8
2.5V
2.6V
2.9V
2.4V
8
2.5V
1.4V
1.4V
3V
2784
47p
3770
1K
9602
GNDFMS
GNDFV
C760
9703
GNDFMS
GNDFV
100R
3769
100R
2763
3766
10n
2775
680p
2779
2780
4n7
470n
470R
3775
470R
3776
7K5
2782
47u
2783
100n
3771
I770
5VA
2786
470n
4769
2789
10n
4760
2778
470n
2770
470n
5763
I793
5K6
2772
680p
AT-49
3768
I792
4M
1760
I791
3n3
2773
3n3
5K6
3762
2760
11
17
19
20
OUTL 1
OUTM 43
OUTR 2
P1
37
P2
42
SCL
29
SDA
30
VCC 28
VREF 41
XTAL
15
39
IFINT
25
LF1
14
LF2
18
LPF
31
MAD
21
4
22
44
36
23
5
9
16
12
8
AF1O
10
AF2I
33
AF2O
32
AFR
13
AGND 7
CAF1
24
CAF2
26
CDE1
3
CDE2
6
CID
35
CTRIG
34
DGND
27
EXTL
40
EXTM
38
EXTR
7760
TDA9873HZ
AF1I
470n
2781
470n
4761
SIF2
AFR
AFL
SDA
SCL
2785
A: DC, 500mV/Div, 2us/Div
0V
IC 7705 PIN12 SIF2
08
REC
A: DC, 2 V/Div, 500us/Div
0V
IC 7761 PIN30,31 AFL,AFR
11
REC
Interconnections:
AF page 3-27
AL page 3-24
AIO1 page 3-17
AIO2 page 3-15
DE page 3-19
FM ST page 3-22 FM NIC-page 3-23
FV page 3-21
FOME page 3-34 I/O page 3-33
PS page 3-14
VPO page 3-32
VS page 3-31
VS_S page 3-28
7760
1
44
34
33
23
22
12
11
attention for pos 7760 solder direction!
Summary of Contents for VTFX940EUKN
Page 6: ......
Page 30: ......
Page 83: ...3 1 3 1 Wiring Diagram Motherboard ...
Page 85: ...3 3 3 3 Block Diagram Video ...
Page 87: ...3 5 3 5 Block Diagram Audio Stereo ...
Page 88: ...3 6 3 6 Supply Voltages and Bus Diagram ...
Page 91: ...3 9 3 9 Block Diagram Central Control AIO1 AIO2 OPTION ...
Page 92: ...3 10 3 10 Mother Board solder side CLOCK ADJUST 4769 ...
Page 93: ...3 11 4769 E10 ...
Page 94: ...3 12 ...
Page 119: ...THE UPDATED PARTS LIST FOR THIS MODEL IS AVAILABLE ON ESTA ...
Page 120: ......