GV 411-2
Platinenabbildungen und Schaltpläne / Layout of PCBs and Circuit Diagrams
GV 411-2
Platinenabbildungen und Schaltpläne / Layout of PCBs and Circuit Diagrams
Chassisplatte / Family Board – Video/Chroma (VS)
GRUNDIG Service
4 - 27
GRUNDIG Service
4 - 28
15
...V MEASURED IN PLAYBACK MODE
...V MEASURED IN RECORD MODE
0V
0V
0V
0V
0V
1.2V
0V
0.6V
3.0V
1.4V
0.3V
2.2V
1.5V
1.2V
0.6V
2.2V
0.5V
3.2V
0.6V
3.8V
5V
0.6V
11
12
21
16
18
19
20
17
14
13
for LP only
for LP only
68p for LP only
not used
to FV/IO
from DE
from DE
from DE
from DE
to IO
to DE
from IO
from DE
from DE
to/from DE
GNDA
FMPV
5VAS
CSYNC
TRIV
HSC
HP1
FMRV
GNDA
To OHA 1910
not used
not used
not used
FM PROCESSING
Y- REC
low pass filter
from DE
from DE
CHROMINANCE
not used
not used
ENVC
1,7V
1V
0,7V
5,2V
1,5V
2,2V
4,9V
5,2V
3,6V
2,9V
2,9V
2,3V
3,2V
2,3V
3,6V
2,9V
4,3V
3,2V
2,4V
3,3V
3V
4,7V
2,4V
4,6V
2,4V
3,1V
2,7V
1,6V
3,2V
3V
5V
0,5V
3,1V
2,1V
2,2V
0V
1,2V
2,2V
SYNC-FREQ.
WRITING
CURRENT PAL
5,1V
0V
5,2V
4,4V
5,2V
2,4V
5V
2,4V
2,3V
1,3V
2,4V
1,2V
2V
2V
5V
8,6V
1,4V
2,5V
2,6V
0,2V
2,5V
0V
2V
2,5V
0,1V
3,9V
2,7V
2,1V
5V
2,8V
2,8V
3,3V
2,4V
2V
1,5V
1,9V
5,2V
2,1V
VS
OFB3 (...62720)
OSCILLOGRAMS
..
3044 D 5
3043 L14
3042 M14
3041 J 5
3040 H 5
3039 G 5
3038 F 5
3037 F 6
3036 E 4
3035 F 5
3034 M 3
3033 M 2
3032 M 2
3031 N 5
3030 N 4
3029 M 4
3028 M 4
3027 L 5
3026 M 6
3025 M 7
3024 O 9
3023 K 7
3022 O11
3021 O10
3020 N10
3018 L 9
3016 N18
3015 L10
3014 J10
3013 M10
3012 K14
3011 M11
3010 K12
3009 J12
3006 C15
3002 D12
3001 C11
3000 C10
2069 J20
2068 J22
2067 J23
2066 F22
2065 F22
2064 F22
2063 F 4
2062 K17
2061 G20
2060 G19
2059 K 8
2058 L10
2057 K10
2056 O 9
2055 O 6
2054 N 7
2053 O 7
2052 K11
2051 O 8
2050 C 3
2049 E 5
2048 F 5
2047 H 5
2046 H 6
2045 I 5
2044 J 6
2043 M 2
2042 M 4
2041 M 4
2040 M 6
2039 L 6
2038 M 7
2037 K 7
2036 O 4
2035 O 4
2034 N19
2033 M16
2032 M 4
2031 O11
2030 O10
2029 O10
2028 K 8
2027 K 9
2026 K10
2025 H 3
2024 M10
2023 L12
2022 K12
2021 K12
2020 K13
2019 F 3
2018 K14
2017 K15
2016 K16
2015 K17
2014 F18
2013 I18
2012 E18
2011 E14
2010 E11
2009 E11
2008 E10
2007 E 9
2006 E 7
2005 D11
2004 D11
2003 E 8
2002 D10
2001 C10
1911 D 2
1100 M19
1000 D12
5011 H 6
5010 G 5
5009 J 6
5008 M 4
5013 N 7
5007 M 6
5006 N 4
5005 M 6
5004 O 6
5012 F 5
5003 O11
5002 M17
5001 F18
5000 M19
3914 C16
3069 G22
3068 F22
3063 E 4
3056 O 2
3055 L11
3048 O 8
3047 O 9
3046 C 4
3045 E 3
3054 J11
3053 J11
3052 N 6
3051 O 7
3050 M 8
3049 N 7
7060 H21
7051 H 7
7022 M14
7021 N 6
7020 M 5
7019 D 4
7018 D 4
7016 K 2
7015 I 2
7014 N 8
7013 M 9
7012 M11
7011 L11
7010 K 6
7009 O 3
7007 L 9
7006 M18
7000 C10
6000 K 9
5014 F 4
4
5
6
7
8
9
10
11
12
13
14
15
16
17
2
18
19
20
21
22
23
3
M
L
K
J
I
H
G
F
E
D
C
B
O
N
M
L
K
J
I
H
G
F
E
D
C
B
O
N
4
5
6
7
8
9
10
11
12
13
14
15
16
17
2
18
19
20
21
22
23
3
220E
3063
820E
3036
2063
270p
2062
10n
2059
10n
2057
47p
2058
180p
2%
10p
2056
10n
2013
10n
2011
2%
2029
200p
2026
390p
2%
100n
2050
10n
2066
10n
2064
1n
2067
10n
2068
10n
2069
10n
2060
2048
56p
18p
2047
220p
2046
68p
2044
1n
2037
10p
2031
2%
68p
2030
2022
100n
2020
100n
2009
180p
2045
18p
2024
22p
2049
47n
2003
100n
2006
22n
2001
10n
2007
47n
2004
330p
2014
10n
2012
10n
2019
100p
2051
1n
2043
100n
2038
47p
2042
27p
2041
68p
2040
68p
2039
560p
2055
27p
2054
33p
2053
82p
2035
56p
2036
47p
2032
2025
5014
560u
5012
220u
5010
15u
5011
100u
5009
27u
5003
100u
5001
15u
5002
6u8
5000
10u
5008
8u2
5007
27u
5005
15u
5004
100u
5013
15u
5006
15u
5VAS
5VA
IPBV
ITRICK
HSC2
LP
FFP
CROT
VSB
CSYNC
VBS
CSYNC
CSYNC
ENVC
TRIV
HSC
HP1
DO
IREV
LP
7009
BC848B
7007
BC848B
7018
BFS19
7019
BC848B
7013
BC848B
7014
BFS19
7020
BFS19
7010
BC848B
3k9
3056
8k2
3011
3035
1k
3042
3055
100k
100k
3053
22k
3006
2%
2k7
3014
1k
3068
82k
3069
2k7
3037
2k7
3039
2%
1k3
3021
2%
4k7
3020
1k
3022
2k2
3018
18k
3013
220E
3012
560E
3015
1k
3000
1k
3045
470E
3041
4k7
3046
3044
1k5
1k
3040
1k8
3002
8k2
3001
4k7
3016
3009
3010
2k2
3023
2k2
3024
680E
3048
470E
3047
18k
3033
18k
3032
330E
3034
1k
3029
270E
3028
560E
3031
680E
3027
390E
3052
330E
3026
1k2
3025
560E
3051
1k
3049
1k5
3050
470E
3030
2k7
3043
3914
5VPB
5VAS
5VA
5VSE
5VPB
5VSE
5VA
5VPB
5VAS
5VPB
5VSE
5VPB
5VAS
5VSE
5VSE
5VSE
5VSE
5VSE
5VSE
5VSE
5VSE
5VSE
5VSE
5VSE
5VSE
DTA124EK
7012
DTA124EK
7016
DTA124EK
7015
16V
2052
22u
16V
2065
47u
50V
2061
1u
16V
2027
10u
16V
2028
10u
16V
2021
10u
16V
2018
10u
50V
2016
1u
50V
2015
1u
16V
2023
10u
16V
2033
47u
6,3V
2034
220u
16V
2017
10u
DTC124EK
7011
10k
3038
10k
3054
7006
BC558B
7021
BF824
BC858B
7000
BC858B
7022
16V
2010
47u
50V
2008
1u
50V
2002
1u
50V
2005
1u
1911
1
2
3
4
5
6
7
8
9
10
1100
T1A
LC89973M
7060
10
11
12
13
14
15
16
17
18
19
1
20
21
22
23
24
2
3
4
5
6
7
8
9
CLOCK
SHAPER
OUTPUT AMP
WAVE
AND HOLD
SAMPLE
PHASE
COMP
DUTY CYCLE
DRIVER
CLOCK
DETECTOR
GENERATOR
TIMING
OUTPUT AMP
AND HOLD
CLOCK
SAMPLE
AUTO BIAS
CIRCUIT 1
853 STAGES
CCD
852 STAGES
CCD
CLOCK
CLOCK
CENTER
BIAS
RD VOLTAGE
GEN
CIRCUIT 2
AUTO BIAS
CENTER
2.5 STAGES
CCD
SYNC TIP
CLAMP
BIAS
848.5 STAGES
CCD
1/3
VCO
CIRCUIT
SWITCHING
CLOCK
VCC
GND
GND
FSC
VCC
GND
GND
VCC
GND
GND
LA7437A
7051
CROT
4 PHASE SHIFTER
+
6dB
BGP.GEN
COM
REF
KILLER
MAIN
4.2V
YNR-CTL
DEEMPH
(TO AVNS)
P
DO
DO
FM
DET
MOD
SHIFT
ACC-DET
CARRIER
DET
SHIFTER
4PHASE
FM
FM
AGC
LPF
SUB
LIM
DEMOD
DOUBLE
FMAGC
KILLER
HALF H.
DET
AFC
REC
NL
ENH
EMPH
DETAIL
90
W/D
PAL
P.S.
CLIP
SLD
MAIN
EMPH
MIX
Y/C
CHROMA N.C.
x2
BGP2
VCO
DELAY
321FH
CONTROL
PICTURE
ID-DET
KIL-DET
P
NL
WHP
CLAMP
NOICAN
DEEMPH
PB
BGP1
BGP2
DET
APC
C-LPF
6dB AMP
REC
P
AMP
ACC
K1
K2
+
LPF
Pin 41
+
+
MESEC
-
ACC
PB
DET
MESEC
SLP/LP/SP
CLAMP
DO
-
P
+
LPF
VCA
MESEC
REC NTSC
INVERT
PB ALL
PB APC-DET
REC APC-DET
ATT
B.G.
REC NTSC
B
MESEC
SW1
P
A
B.G.
CLAMP
PROTECT
3RDLOCK
LPF
SW2
BGP2
VXO
XO
CONV
P
VIDEO
DELAY
SUB
1/2
AGC
6dB
SYNC
BPF
FSC
SEP
PAL /
MESECAM
NTSC
2FSC
2FSC
NT*REC
P
P
BGP2
BGP1
CHARA INS
QV/QH INS
KILLER
B.DEEM
BP.AMP
W/D CLIP
BPF
FSC
NAP
CLAMP
CLAMP
BALANCER
SW1
CONV
MAIN
DET
APC
REC
Y-LPF
Y/C-MIX
KIL
BGP1
CHROMA
-
N.C.
P
DO
EMPH
BURST
VIDEO
AGC
DET
AMP
CORR
B.G.
LIM
LIM
R
R
R
R
R
R
R
R
R
BPF
SUB
P
P
P
R
P
R
R
P
R
R
+
-
3
40
9
34
2
41
1
42
8
35
7
36
6
37
5
38
4
39
16
27
17
26
18
25
19
24
20
23
21
22
11
32
12
31
10
33
13
30
14
29
15
28
GND
VCC
GND
VCC
1000
4,433619MHz
1N4148
6000
10
PB
REC
Pin 19
EE/REC/PB
Test Picture
V puls
H ( 5V)
L (0V)
Z (1.2…3.3V)
Pin 25
LP
Z (2.5V)
S-LP
SP
H (5V)
L (0V)
Pin 27
Color Vector
Normal
LP features
L (0V)
Z (1.2…3V)
Record
Playback
