Platinenabbildungen und Schaltpläne / Layout of PCBs and Circuit Diagrams
Platinenabbildungen und Schaltpläne / Layout of PCBs and Circuit Diagrams
GRUNDIG Service-Technik
4 - 11
GRUNDIG Service-Technik
4 - 11
Chassisplatte – Empfangseinheit / Family Board – Frontend (FV)
28
27
0.6V
0.6V
0.5V
0.5V
1.8V
2.3V
2.9V
30.6V
12V
5.2V
0.5V
5.2V
5.1V
12V
1.1V
12V
12V
12V
11.3V
12V
0V
11.9V
11.9V
12V
0V
12V
0V
6.2V
1.2V
3.4V
3.4V
5.1V
2.6V
2.7V
2.7V
1.6V
1.9V
2.6V
1.8V
1.9V
1.4V
1.1V
2.3V
2.6V
2V
2V
3.1V
2.9V
1.2V
4.6V
12V
14.8V
14.5V
5.3V
7.4V
13V
13.36
MEASURED IN RECORD MODE
MEASURED IN PLAYBACK MODE
..V
..V
OSCILLOGRAMS
..O
Frontend 9314
A.N. 9318
AFV
26
2%
2%
2%
PAL BG
OFW
1%
1%
1%
1%
to DE
to VS/IO
to VS/IO
1%
1%
PAL BG
SYSTEM
OFW
TRAP
BANDPASS
PAL I
SEC DK
G1966M
J1952
K2950M
TPS5.5MB-TF21F
TPS6.0MB-TF21F
TPS6.5MB-TF21F
SFSH5.5MDB
SFSH6,0MDB
SFSH6,5MDB
TUNER
UV917
UV917
UV943
AGC
IN CASE OF REPLACEMENT SEE FRONTEND ADJUSTMENTS
1720
1721
1722
1723
7708 G 2
7707 H14
7706 G15
7705 D15
7704 F 8
7703 I14
7702 C12
7701 H 4
7700 F 8
7700 I 8
6702 H14
5722 E12
5721 A 9
5720 C 6
5703 A12
3760 J 6
3757 H13
3756 H14
3755 G15
3754 H15
3753 I14
3752 H13
3751 I12
3750 H12
3747 H10
3746 G10
3745 E 4
3744 E 6
3743 E 7
3742 F 7
3741 F 8
3740 F13
3739 F 4
3738 F 1
3737 F 2
3736 G 1
3735 G 2
3733 E15
3732 D14
3731 E13
3730 E12
3729 B14
3728 A14
3725 A11
3724 E 9
3723 D 8
3722 D 7
3721 D 7
3720 D 7
3708 K 9
3707 J 9
3706 J 7
3705 I 6
3704 I 5
3701 K 9
3700 F 8
2760 F 4
2750 H14
2733 E 5
2732 H12
2730 K 4
2729 C14
2728 B15
2727 A11
2726 E11
2725 E11
2724 D 7
2723 A10
2722 A10
2721 C 8
2720 C 8
2705 I 8
2704 I 5
2703 A 2
2702 J 7
2701 I 7
2700 J 6
1724 F13
1723 E13
1722 E12
1721 C 7
1720 B 4
1701 K 2
7714 E 7
7713 E 6
7712 D 7
7711 G 1
7710 F 1
7709 F 3
4
5
1
6
7
8
9
10
11
12
13
14
15
16
2
3
H
G
F
K
E
D
C
B
A
J
I
H
G
F
K
E
D
C
B
A
J
I
4
5
1
6
7
8
9
10
11
12
13
14
15
16
2
3
1k2
3746
470E
3757
18k
3750
4k7
3751
470E
3752
1k
3753
1k2
3747
1k
3744
4k7
3743
18k
3742
3k9
3741
22k
3739
470E
3740
330E
3754
10E
3755
560k
3708
560E
3731
330E
3730
3728
18k
2k2
3732
2k2
3733
47k
3720
6k8
3721
22k
3722
3729
18k
13k
3701
10k
3700
18k
3704
22k
3705
68k
3706
2k2
3707
47k
3735
47k
3737
47k
3738
47k
3736
560E
3725
22k
3756
82k
3760
4k7
3745
LM358M
7700
2
3
1
4
8
5
6
7
7700
LM358M
100n
2733
100n
2728
22n
2702
10n
2704
10n
2705
2703
100n
2726
220n
2700
100n
2701
2720
2721
100n
2722
100n
2727
220n
2760
BC857B
7713
BD436
7706
BC858B
7705
BC858B
7710
BC858B
7711
BC847B
7714
BC848B
7707
BC848B
7709
BC848B
7708
7712
+12A
+33V
+12A
5VAS
+33V
+12A
5VAS
+12A
+12A
+12A
5VAS
+12A
+12A
+12A
+12A
+12A
1724
1
2
3
1723
1
2
3
6702
1N4148
2u2
2725
2u2
2729
22u
2723
100u
2732
22u
2724
0.47u
2730
4u7
2750
22k
3724
PLL
without_need
3723
AFV
VFV
+33V
5VAS
+14A
AFC
SCL
STROBE
PWM
SDA
AGC
1701
7
1
2
3
4
5
6
8
TL 431
7703
1
2
3
TL
431
7704
HEF4104BP
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
LEVEL
CONVER
TER
7701
HEF4094BP
10
9
3
2
15
4
5
6
7
14
13
12
11
1
16
8
E0
VDD
O5
O7
O3
O6
O0
O1
O2
O4
VSS
CP
D
STR
SHIFTREGISTER
1720
10
11
12
13
14
15
16
17
5
6
7
8
MT1
MT2
UV917
I
III
U
I
I
I
III
I
U
U
I
+12V
M
M
G
G
1u2
5720
15u
5722
6u8
5721
5703
1
2
3
4
6
7702
TDA9800
10
11
12
13
14
15
16
17
18
19
1
20
2
3
4
5
6
7
8
9
VIDEO
AGC
VCO
IF
AGC
WAVE
DIVIDER
DETECTOR
TRAVELING
DETECTOR
FREQUENCY
AND PHASE
DEMODULATOR
AGC
DETECTOR
TUNER
VOLTAGE
INTERNAL
REFERANCE
3-stage
IF-amplifier
8p2
BUFFER AND
AFC
CLIPPING
NOISE
AMPLIFIER
VIDEO
AMPLIFIER
FM-PLL
AF
1721
3
1
2
4
5
1722
1
2
3
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