GV 26 EURO, GV 6000 EURO, GV 6300 EURO
Circuits imprimés et schémas électriques / Layout of PCBs and Circuit Diagrams
GV 26 EURO, GV 6000 EURO, GV 6300 EURO
Circuits imprimés et schémas électriques / Layout of PCBs and Circuit Diagrams
GRUNDIG Service
4 - 23
GRUNDIG Service
4 - 24
Circuit principal / Family Board – OSD/Follow TV (OS)
Reference
AL..............4-34
DE .............4-21
FV..............4-25
HV .............4-33
IO ..............4-27
OS .............4-24
PDCG1......4-36
PIO ............4-35
PKG11.......4-37
PKG12.......4-38
PMB ..........4-17
PSM ..........4-14
SE .............4-32
VS .............4-29
13
84
14
85
81
83
82
OSCILLOGRAMS
..
OS(39620)
to IO
.. V MEASURED IN RECORD MODE
.. V MEASURED IN PLAYBACK MODE
0,5V
0,6V
5,1V
2,5V
2,5V
5V
5V
2,5V
0V
4,3V
3,7V
5,1V
5,1V
5,2V
4,7V
4,5V
1,9V
1,9V
1,9V
2,5V
1,9V
2,5V
from IO
from IO
from DE (2
µ
P) / IO (3
µ
P)
from DE (2
µ
P) / IO (3
µ
P)
from DE (2
µ
P) / IO (3
µ
P)
FOLLOW-TV - OPTION
0V
0V
0V
0V
0.3V
2.3V
5V
/4-C
/4-B
/4-D
from IO/ DE
for Secam only
for one Background-Colour only
for eight Background-Colors only
not used
to DE
to IO
from IO
from DE
from VS
from VS
from VS
delete for OSD
for 1scart or OSD only
7852 J 5
7851 I 5
7850 I 4
7850 K 4
7850 K 5
7850 J 7
7830 A 6
7821 D10
7811 F 6
7810 G 6
7802 G11
7801 D 6
7800 D 4
6830 A 3
5831 A 5
5830 A 1
5810 F 5
5802 B 7
5801 F 2
5800 D 2
3885 A14
3884 B13
3883 C12
3882 A12
3881 B11
3880 B10
3873 D10
3872 E 2
3871 E 2
3870 E 1
3867 J 3
3866 H 3
3865 J 5
3864 I 8
3863 J 7
3862 J 6
3861 I 6
3860 I 6
3858 H 4
3857 I 5
3856 H 4
3855 K 3
3854 J 3
3853 K 2
3852 I 2
3851 I 2
3850 I 2
3838 A 6
3837 E 9
3832 B 1
3831 A 6
3830 A 1
3820 C 2
3814 F 9
3813 G 6
3812 F 6
3811 G 5
3810 G 5
3809 D 5
3808 E 6
3807 E 5
3806 G11
3805 F 5
2860 I 9
2858 J 6
2855 K 3
2854 K 3
2853 I 3
2852 I 3
2851 J 2
2850 I 2
2840 F11
2832 A 5
2831 A 2
2830 A 1
2822 B 2
2821 B 2
2820 A 2
2810 G 5
2804 B 5
2803 B 6
2802 F 2
2801 D 2
2800 D 2
1982 B 9
1820 B 2
7880 C11
4
5
6
7
1
8
9
10
11
12
13
14
2
3
H
G
F
E
K
D
C
B
A
J
I
H
G
F
E
K
D
C
B
A
J
I
4
5
6
7
1
8
9
10
11
12
13
14
2
3
VPSVID
VSB
SAKI
ODAT/SACO
FSC
FOME
VIN1
VFV
VOSD
OFP
ODAT/SACO
OCLK
OCS
CSYNC
100E
3873
100E
3838
3810
100k
3811
1k
3814
100E
3837
1k
3872
10k
3871
10k
3870
10k
4k7
3813
4k7
3812
180E
3831
3k3
3830
0E
3832
0E
3820
3858
2k2
3857
4k7
3860
4k7
3856
2k2
3855
10k
3854
15k
3853
10k
3852
10k
3851
10k
3850
15k
3865
4k7
3866
4M7
3867
4M7
3864
4k7
3863
100k
3861
22k
3862
15k
3805
47E
3807
220E
3808
22k
3809
10k
3806
1k
3880
2k2
3881
2k2
3882
4k7
3884
10k
3885
10k
3883
10k
+5D
+5D
+5D
5ASW
5ASW
5ASW
5ASW
5ASW
5VA3
5VA3
5VA3
5VA3
5VA
5VA
5VA
5VA
5VA
5VA3
5VA3
5ASW
6830
BAV70
GNDA
GNDA
GNDA
GNDA
GNDD
GNDD
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
GNDD
7821
BC848B
7852
BC848B
7851
BC848B
7810
BC848B
7811
BC848B
7801
BC848B
7880
BC848B
7881
BC848B
1982
25V
2840
100n
6V3
100n
2832
6V3
56p
2830
6V3
10n
2831
6V3
2822
33p
6V3
2854
4n7
6V3
2853
560p
6V3
2855
560p
6V3
2852
4n7
25V
2860
100n
6V3
2803
100n
50V
2821
22p
6V3
2800
18p
6V3
2801
33p
6V3
2810
120p
6V3
2802
100n
7830
BC858B
7802
BC858B
6V3
2858
10u
6V3
2851
10u
6V3
2850
10u
6V3
2804
1u
17,734475MHz
1820
22u
5830
5802
6u8
5800
33u
5810
10u
5801
6u8
5831
5P
1
2
3
4
6
7800
LC74781
LC74782
5
9
4
21
22
15
13
14
6
7
23
10
18
20
19
11
8
17
24
12
16
1
2
3
CSYNout
SEPin
CTRL1
CTRL2
Xout
CTRL3
OSCin
SEPout
Xin
RST
VSS1
VDD1
SYNC
SYNin
CS
VDD3
SCLK
CVin
SIN
NC
VDD2
CVout
OSCout
SEPC
12
3
7850
4
5
2
LM339
7850
14
8
9
LM339
7850
13
10
11
LM339
7850
1
6
7
LM339
2820
7,5-50p
7881 B13
DC, 500mV/Div, 20
µ
s/Div
0V
IC7051-(16), T7821 - Emitter
13
PB
DC, 1V/Div, 20
µ
s/Div
0V
IC7051-(14), R3808
14
PB
DC, 0,5V/Div, 5ms/Div
0V
T7463, Emitter
42
PB
DC, 1V/Div, 5ms/Div
0V
IC7460-(6/7)
43
WIND
DC, 1V/Div, 10ms/Div
0V
OK7466, Collector / R3474
44
THR
AC, 100mV/Div, 10
µ
s/Div
Connectors 1946-(6)
46
PB
DC, 1V/Div, 10
µ
s/Div
0V
IC7400-(25)
47
PB
DC, 500mV/Div, 500
µ
s/Div
Connectors 1946-(4)
48
PB
1V
DC, 1V/Div, 10ms/Div
IC7460-(2)
49
REC
0V
DC, 1V/Div, 10
µ
s/Div
0V
IC7400-(24)
PB
50
DC, 1V/Div, 10
µ
s/Div
0V
IC7400-(10)
51
THR
DC, 1V/Div, 500
µ
s/Div
0V
Connector 1930-(4)
55
PB
DC, 2V/Div, 2ms/Div
0V
Connector 1930-(1…3)
56
PB
AC, 100mV/Div, 10ms/Div
Connetor 1930-(5)
57
PB
DC, 1V/Div, 10ms/Div
0V
IC7300-(6), IC7400-(12)
58
PB
DC, 1V/Div, 10
µ
s/Div
0V
IC7460-(16)
59
PB
AC, 1V/Div, 100ns/Div
T7830 Basis
REC
81
DC, 500mV/Div, 5ms/Div
0V
C2851
REC
82
DC, 500mV/Div, 20
µ
s/Div
0V
C2850
REC
83
DC, 1V/Div, 20
µ
s/Div
0V
T7802 Basis
REC
84
DC, 1V/Div, 20
µ
s/Div
0V
IC7800-(17)
PB
85
LC74781
LC74782
VSS1
NC
VDD2
VDD1
VDD1
DISPLAY POS. COUNTER
MUX
MUX
MUX
DISPLAY RAM
CHARACTER GENERATOR
CHARACTER ROM
MIX
SYNCSEPARATOR
SYNC-AND BACKGR. GEN.
CHECK
OUT
SYNC-PROCESSING
PORT 1
PORT 0
CONTROL-REGISTERS
RESET
BUS-INTERFACE
0SCILLATOR
21
22
23
24
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
1
2
3
7800
0SCILLATOR
