Platinenabbildungen und Schaltpläne / Layout of PCBs and Circuit Diagrams
GV 6400 …, GV 6401 NIC
Platinenabbildungen und Schaltpläne / Layout of PCBs and Circuit Diagrams
GV 6400 …, GV 6401 NIC
4 - 25
GRUNDIG Service
4 - 26
GRUNDIG Service
Chassisplatte – Empfangseinheit / Family Board – Frontend (FV)
28
80
31
26
..
OSCILLOGRAMS
*
Pos.
VERSION
..V
MEASURED IN PLAYBACK MODE
FV(40250)
not used
24,2V
24,2V
0V
1-9V
2,8V
1,5V
2,1V
5V
3,8V
3,1V
3,1V
2,5V
-4C
-4B
-4A
offset
from DE
from DE
to IO
only for PAL-I
680E
15u
PAL-I-FULL-BAND
NICAM STEREO
TMRG1-104A
J1980M
TRAP 6MHz
BP 6MHz
47p
270E
0E
TDA9800T
TRAP 6,5MHz
0E
1n
HEF 4053
0E
15u
330E
0E
47p
1n
BP 5,74MHz
BP 5,5MHz
BP 6,5MHz
TRAP 5,5MHz
TDA9813T
G3962M
K9460M
TMRG-201A
4772
1n
1n
2722
NOT USED
NOT USED
FM STEREO
PAL-BG/SEC-DK
3760
1k
680E
delete for <6W
for <6W only
47p
BP 5,74MHz
*
12u
15u
15u
5740
*
*
2.9V
2.9V
*
OFW
32.4MHz
Band 1
40.4/33,05MHz
BAND-1
Adj.
*
*
*
*
*
*
OFW
*
*
*
delete for PAL-BGI,SEC-LL'
for PAL-BGI,SEC LL'only
*
*
only for PAL-BGI,SEC-LL'
from OSD
*
LOW LEAKAGE
AGC-Adj.
from DE
AFC-Adj.
for TDA 9800T only 2703, 2746, 3706, 3732, 3743, 3760, 4710, 4712, 4716, 4718, 4719, 4722, 4724.
for TDA 9813T only 2703, 2728, 2744, 2749, 3704, 3735, 3736, 3764, 4708, 4711, 4713, 4723, 4725.
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
1,9V
1,2V
0V
0V
2,5V
2V
2,4V
2,1V
2,5V
1,7V
2,2V
2,7V
2,8V
2,7V
2,8V
2,8V
2,6V
4,9V
3,4V
3,4V
3,3V
3,3V
1,3-7V
1,1V
3,1V
2,1V
2,1V
2,6V
5V
1V
3,1V
0V
2V
2V
2,1V
2,8V
2V
2,3V
*
OFW
*
for TDA 9814T only 2708, 2728, 2741, 2744, 2749, 3704, 3735, 3736, 3764, 4708, 4711, 4713, 4723, 4725, 4750.
Phase-
*
*
and PAL-I-fullband
*
PAL-BG
FM STEREO
PAL-BG
NICAM STEREO
PAL-I
NICAM STEREO
PAL-BGI/SEC-LL'
FM u.NICAM STEREO
TP 916
1701
TP 916
TP944
TP926
1719
L9454M
1720
J1980M
G1984M
G1984M
1721
K3953M
1740
TRAP 5,5MHz
TRAP 5,5MHz
TRAP 5,5MHz
1741
TRAP 6MHz
1745
1746
BP 5,5MHz
1747
BP 5,5MHz
BP 6MHz
2706
220p
2745
220p
3709
100E
2730
47p
47p
47p
2731
2732
BP 6MHz
47p
3747
270E
270E
390E
3749
680E
3750
330E
4715
0E
0E
4717
7720
7723
7722
TDA9800T
TDA9800T
TDA9814T
HEF 4053
delet for TP926
delet for TP926
SEC-L' = H
PAL,SEC-L = L
SEC = L
PAL = H
PAL-BG = H
PAL-I = L
from IO
from DE
to DE
(BGIS)
from DE
to IO
to IO,FOME
to IO
to DE
from DE
from DE
TRAP 6,5MHz
4754
0E
0E
*
0E
0E
1n
1n
*
*
BP5,5
BP5,74
*
only for PAL-BGI/SEC LL'
and PAL-BG/SEC-DK
PAL-BG/SEC-LL'
PAL-BG/SEC-DK
PAL-BG = H
SEC-DK = L
only for PAL-BGI/SEC LL'
PAL-BG/SEC-LL'
PAL-BG/SEC-DK
= H
PAL-BGI/SEC-LL'
PAL-BG/SEC-DK
PAL-BG = H
SEC-DK = L
0E
15u
270E
0E
1n
BP 5,74MHz
BP 5,5MHz
TDA9813T
47p
47p
0E
0E
4709
0E
2750
2u2
2u2
*
*
*
47p
47p
0E
0E
0E
40.4MHz
7723 F18
7722 O19
7722 P16
7722 O16
7721 L20
7720 G14
7500 N 8
6780 B20
6761 E10
6760 E10
5750 L22
5740 M17
5727 K14
5725 D17
5721 I10
5720 K 7
5705 N 4
5704 I 6
5703 H 4
5702 N 2
4772 E13
4771 F11
4770 C10
4754 M21
4750 N14
4725 G21
4724 H21
4723 J20
4722 I20
4719 J14
4718 J19
4717 M19
4716 M18
4715 M16
4713 K16
4712 J16
4711 J15
4710 J15
4709 K18
4708 M20
3782 A21
3781 B22
3780 C22
3771 D11
3770 F10
3769 D10
3768 F 9
3767 E 9
3766 D 9
3764 L20
3762 M20
3761 K21
3760 L20
3754 M22
3753 L21
3750 N17
3749 M17
3748 D18
3747 M17
3744 L12
3743 N14
3742 K14
3736 K20
3735 E14
3732 D14
3731 E21
3730 E21
3726 K11
3725 J11
3709 H 9
3706 I13
3705 O 5
3704 I13
3703 M 7
3702 M 7
3701 K10
3505 O 4
3502 N10
3501 N 8
3500 M 9
2750 E14
2749 E14
2748 E16
2747 E20
2746 D14
2745 M17
2744 I21
2743 K14
2742 K13
2741 K16
2740 L13
2735 K20
2732 L19
2731 K19
2730 K19
2728 H20
2727 G20
2722 G 8
2710 K20
2709 N 6
2708 K 9
2707 I10
2706 H10
2705 N 5
2704 I 3
2703 K 8
2702 O 5
2701 N 2
2700 I 3
1747 L19
1746 K19
1745 K19
1741 L21
1740 M17
1721 H12
1720 G12
1719 E12
1701 I 2
9708 N 6
7781 B21
7780 D22
7730 E11
7729 F10
7726 C17
7724 L13
4
5
6
1
7
8
9
10
11
12
13
14
15
16
17
2
18
19
20
21
22
23
3
N
L
K
J
I
H
G
F
E
D
C
B
A
O
N
L
K
J
I
H
G
F
E
D
C
B
A
O
4
5
6
1
7
8
9
10
11
12
13
14
15
16
17
2
18
19
20
21
22
23
3
GNDA
GNDA
GNDA
GNDA
GNDA
GNDA
GNDA
GNDA
GNDA
GNDA
GNDA
GNDA
GNDA
GNDA
GNDA
GNDA
GNDA
GNDA
GNDA
GNDA
GNDA
GNDA
GNDA
GNDA
GNDA
GNDA
GNDA
GNDA
GNDA
GNDA
GNDA
GNDA
GNDA
GNDA
GNDA
GNDA
GNDA
GNDA
GNDA
GNDA
GNDA
GNDA
GNDA
GNDA
GNDA
GNDA
GNDA
GNDA
GNDA
GNDA
GNDA
GNDA
GNDA
GNDA
GNDA
GNDA
GNDVS
9708
220n
2710
25V
10n
2735
6V3
100n
2705
25V
1n
2722
6V3
220p
2745
6V3
100n
2700
25V
100n
2701
25V
100n
2702
50V
2706
6V3
120p
2707
6V3
8p2
2748
50V
100n
2747
25V
100n
2743
25V
100n
2741
6V3
220n
2749
6V3
100n
2746
6V3
47p
2731
6V3
47p
2730
6V3
100n
2709
50V
47p
2732
6V3
+33V
5ASW
5VA
5VAF
+12SW1
5ASW
5VAF
5VAF
+33V
5ASW
+12SW
5VA
5ASW
5ASW
+12SW1
+12SW
+33V
+12A
5ASW
5VA
5VAF
5VAF
5VA
ALR
A2R
SB1
SCL
SDA
VIDOUT
AGC
AFC
VFV
PSS
INT
SSIF
AMCO
STBY
5k6
3736
0E
3782
220k
3781
1k
3780
0E
4725
100k
3768
100k
3770
4k7
3771
4k7
3769
47k
3766
4k7
3767
3709
330E
3750
3747
0E
4715
22k
3705
1k
3701
100E
3703
100E
3702
680E
3749
100k
3505
1k
3501
1k
3502
1k
3500
1k
3764
0E
4719
0E
4718
0E
4722
0E
4713
0E
4723
0E
4724
3760
150k
3744
1k
3762
18k
3731
8k2
3725
18k
3730
390E
3735
1k
3761
680E
3704
0E
4712
0E
4717
0E
4710
0E
4711
390E
3732
0E
4716
680E
3706
0E
4750
27k
3726
270E
3753
2k2
3754
0E
4754
0E
4770
0E
4771
0E
4772
0E
4709
0E
4708
1745
1
2
3
1746
1
2
3
1747
1
2
3
5704
6u8
5703
5740
6u8
5702
1u
5720
6u8
5727
10u
5750
6u8
5705
BZX79-C12
6780
MTD15N06V
7781
DTC124EK
7780
DTC124EK
7726
HEF4053BT
10
15
1
2
7722
S
Z
Y0
Y1
E
HEF4053BT
9
4
3
5
7722
S
Z
Y0
Y1
E
10u
2703
16V
22u
2708
16V
22u
2742
16V
2u2
2740
50V
2u2
2750
6V3
22u
2728
6V3
22u
2727
16V
2u2
2744
6V3
47u
2704
16V
2
3
1
1740
2
3
1
1741
4
5
1719
1
2
3
4
5
1721
1
2
3
4
5
1720
1
2
3
BC848B
7730
BC848B
7729
BC848B
7500
BC848C
7724
22k
3748
4k7
3743
22k
3742
BA792
6760
BA792
6761
HEF4053BT
11
14
12
13
7722
6
16
7
8
Vee
S
Z
Vss
Y0
Y1
Vdd
E
TP916/PAL-G
1701
11
13
14
16
17
2
5
15
A
B
C
NC
12
6
3
1
III
I
III
UHF'
III'
I'
I
UHF
III
UHF
I
UHF
PLL_suppl
NOTE: UHF only for TP944
Tun_supply
passive
loop through
NOTE: Optional
RF-in
RF-out
AGC
sound
NOTE: Not in TP926
video
D
AS
MIX
PLL
PLL
BPF
MIX
VCO
MIX
MIX
VCO
VCO
AGC
AGC
AGC
BPF
BPF
BPF
MOD
+
I' III' UHF'
4
6
5721
41645
1
2
3
7KM
5725
1
2
3
4
6
7723
10
11
20
13
3
6
25
8
23
12
24
9
14
7
27
28
15
4
16
5
21
22
1
2
19
18
17
26
AM DEMOD.
QSS MIXER &
SINGEL REF.
SIF AGC
SIF AMP.
FM DETECT
FM DETECT
PLL
PLL
TDA9800T/V3
7720
10
11
12
13
14
15
16
17
18
19
1
20
2
3
4
5
6
7
8
9
DETECTOR
VIDEO
VCO
WAVE
IF
AGC
DIVIDER
DETECTOR
TRAVELING
DETECTOR
FREQUENCY
AND PHASE
DEMODULATOR
AGC
TUNER
AGC
8p2
BUFFER AND
CLIPPING
NOISE
AFC
AMPLIFIER
VIDEO
AMPLIFIER
FM-PLL
AF
VIF AMP
IRV
BC858B
7721
27
Reference
AF ............4-39
AL.............4-28
DE ............4-21
FOME.......4-24
FV ............4-25
HA ............4-34
IO .............4-27
OS............4-24
PAF ..........4-35
PBA22......4-41
PDCA1 .....4-41
PDCG1.....4-44
PKG11 .....4-45
PKG12 .....4-46
PMB .........4-17
PSM .........4-14
SD ............4-37
SE ............4-32
VS ............4-29