Frontend (Fv) - Grundig GV 8000 GB Service Manual

Platinenabbildungen und Schaltpläne / Layout of PCBs and Circuit Diagrams
Chassisplatte – Empfangseinheit / Chassis Board – Frontend (FV)
2 3 4
B
Amtsblf. PAL-BG PAL-BG
Pos.
FM STEREO NICAM STEREO
1701 "MK2" 75988 041 4300 75988 041 4300
1719
1720 G1984M
C G1984M
1721
1722
1740 TRAP 5,5MHz TRAP 5,5MHz
1745 EFC 5,5MHz
1746 EFC 5,5MHz
1747 EFC 5,74MHz
1748
D
2730 47p
2731 47p
2732 47p
2735
2745
2750 2u2
E
2791
2792
2793 15p 15p
2795 1n 1n
3735 390E
3747 270E 270E
3748 4k7(PLL)
F
3749
3750
3760 1k
3764 1k
3915 0E 0E
3917 0E 0E
G
3972 0E
3973
3984 0E
3985 0E
3987 0E 0E
3988
H
5740 15u 15u
5741 39u 39u
7720 TDA9800T
7721 TDA9813T
7722
for TDA 9800T only 2726, 2743, 2746, 3706, 3732, 3737, 3910, 3912, 3916, 3918, 3919, 3926, 3989, 3990.
for TDA 9812T only 2729, 2741, 2744, 2749, 2750, 2751, 3704, 3736, 3911, 3913, 3923, 3925, 3950, 3986.
I
for TDA 9813T only 2728, 2733, 2744, 2749, 2750, 2751, 3704, 3765, 3911, 3913, 3923, 3925, 3986.
for TDA 9814T only 2728, 2733, 2741, 2744, 2749, 2750, 2751, 3704, 3765, 3911, 3913, 3923, 3925, 3950, 3986.
delete for MK2 Tumod
J
for MK2 Tumod only
3914
5V
0E
GNDA GNDA
K
1701
**
(Tuner/Modulator)
L
RF-in
M
passive
loop through
NOTE: Optional
RF-out
N
AS
PLL_suppl
15
12
O
P
GNDA 5VASW GNDA
2 3 4
26
5 6
* VERSION STEREO
PAL-I/fullband PAL-BG PAL-BGI/SEC-LL'
NICAM STEREO FM/NIC. STEREO FM/NIC. STEREO
75988 041 4500 75988 041 4300 75988 041 4400
K9456M
G1984M K3953M
J1980M
TRAP 6,0MHz TRAP 5,5MHz TRAP 5,5MHz
EFC 6,0MHz EFC 6,0MHz
EFC 5,5MHz EFC 5,5MHz
EFC 5,74MHz EFC 5,74MHz
47p 47p
47p 47p
47p 47p
220p
2u2 2u2
4u7 4u7
4u7 4u7
15p 15p 15p
1n 1n
390E 390E
270E 270E 390E
4k7(PLL) 22k(BD1)
680E
330E
820E
1k 820E
0E 0E
0E
0E
0E
0E
0E
0E
0E 0E
0E
15u 15u 12u
39u 39u 39u
TDA9800T
TDA9813T TDA9814T
HEF4053D
12SW
3725
33k
GNDA
6 5
Tun_supply I III
AGC
VCO
I III
I'
BPF AGC MIX
BPF AGC MIX
BPF
III'
AGC
BPF MIX
UHF'
UHF
VCO
UHF
NOTE: UHF only for TP944
I' III' UHF'
NOTE: Not in TP 926
MIX
+
MOD VCO
video sound
1 3 A 11
31
80
GNDA
GNDA 33V
GNDA
VMOD AMCO AMLP
from AF from AL
from IO
5 6
7 8
PAL-BG/SEC-DK PAL-BG/SEC-DK PAL-BG
FM STEREO FM/NIC. STEREO FM MONO
75988 041 4800 75988 041 4800 75988 041 4300 75988 041 4500
K9463M K9463M
G3956M G3956M
G1961M
TRAP 5,5MHz TRAP 5,5MHz TRAP 5,5MHz
EFC 6,5MHz EFC 6,5MHz EFC 5,5MHz
EFC 5,5MHz EFC 5,5MHz
EFC 5,74MHz EFC 5,74MHz
EFC 6,25MHz EFC 6,25MHz
47p 47p 47p
47p 47p
47p 47p
47p 47p
2u2 2u2
4u7
4u7
1n 1n 1n
390E 390E
330E 330E 330E
4k7(PLL)
1k
820E 820E
0E
15u
15u 15u
TDA9800T
TDA9813T
TDA9813T
HEF4053D
HEF4053D
GNDA
26
17
16
I III UHF
3708
13 GNDA
100E
PLL
3707
14
100E
3702
C
100E
PLL
3703
B
100E
2
GNDA GNDA
delete for booster
5VA GNDA
SDA
from/to DE/DC
7 8
GV 8000..., GV 8300..., GV 8400...
9 10 11
* VERSION MONO
PAL-I/fullband
PAL-BG/I/SEC LL' SEC-K1 PAL-BG/SEC-DK/K'
FM MONO FM/AM MONO FM MONO
FM MONO
75988 041 4400 – 75988 041 4800
K9456M
G1965M
J1980M K2955M G1966M
L9360M
TRAP 6,0MHz TRAP 5,5MHz TRAP 6,5MHz TRAP 5,5MHz
EFC 6,0MHz EFC 6,0MHz EFC 6,5MHz EFC 5,5MHz
EFC 5,5MHz EFC 6,5MHz
47p 47p 47p 47p
47p 47p
220p
2u2
15p 15p
1n 1n
180E
270E 390E 270E 330E
4k7(PLL) 22k(BD1) 4k7(PLL) 4k7(PLL)
680E
330E
820E 1k
820E
0E
0E
0E
0E
15u 12u 15u 15u
39u 39u
TDA9800T TDA9800T TDA9800T
TDA9812T
HEF4053D
*
2722
1n
25V
*
2795
1n
50V
3709
2706
100E 220p
50V
5721
6 3
2
40,4MHz Falle
4 1
GNDA
only for PAL-BG,I/SEC-LL'
SCL
SCL
9 10 11
GRUNDIG Service
1n
1k
0E
0E
0E