Grundig GV 6400 HiFi Service Anleitung Seite 50

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