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 - 29
GRUNDIG Service
4 - 30
GRUNDIG Service
Chassisplatte / Family Board – Video/Chroma (VS)
17
12
11
15
21
16
18
13
14
20
19
..
OSCILLOGRAMS
0.6V
5V
3.8V
0.6V
3.2V
0.5V
2.2V
0.6V
1.2V
1.5V
2.2V
0.3V
1.4V
3.0V
0.6V
0V
0V
0V
1.2V
0V
0V
0V
0V
0V
...V MEASURED IN RECORD MODE
...V MEASURED IN PLAYBACK MODE
VS(40250)
CSP
CSP
CSYNC
CSYNC
FFP
FFP
CROT
CROT
HSC2
HSC2
FSC
FSC
LPV
LPV
LPV
FMPV
FMPV
CKPAL
CKPAL
VSB
VSB
FMRV
FMRV
CSR
CSR
MES
MES
MES
ACC2
ACC2
ACC2
CSI
CSI
IPBV
INTSC
INTSC
ACC1
ACC1
ACC1
ITRICK
ITRICK
IREV
IREV
DO
DO
VREC
VREC
0,7V
1,6V
1,0V
1,9V
2,5V
2,5V
2,5V
2,5V
2,5V
2,5V
2,5V
1,5V
1,5V
9V
8,8V
2,3V
2,3V
0,9V
0,8V
3,7V
3,6V
0,4V
0,4V
1,9V
1,9V
for OSD only
for MSTND only
for LP only
from SE
from SE
from IO
from IO/OS
from SE
from HA
to HA
only for mstd
0.4V
0V
2V
1.8V
0.9V
0V
1.8V
1.8V
2.7V
0.3
5.1V
2.7V
3V
2.2V
1.2V
2.8V
2V
4.2V
2V
4.6V
2.7V
2.9V
2V
2.6V
3.8V
2.7V
3.3V
2V
2.8V
2.2V
2.2V
0V
2.2V
0V
1.6V
0V
3V
0.1V
3.6V
2.4V
1.7V
5.1V
2.6V
2.6V
2.1V
2.9V
1.7V
2.6V
1.7V
1.4V
1.0V
from DE
not used
for mstd or mes only
220p...for mstd or mes only
Pos.2055
56p...for LP only
for MULTISTANDARD or
LP only
for ACC only
for NTSCPB only
for ACC only
FROM TO DE
FM-PROCESSING
for ACC only
-4A
-4B
-4C
-4D
5.1V
5.1V
5.3V
0.2V
5.3V
2.2V
5.2V
5.3V
3.3V
2.7V
5.3V
5.3V
2.7V
2.1V
5.3V
5.1V
0.4V
4.5V
5.3V
5.3V
0V
0V
to HA,DE,SE,OS
for MESECAM only
SECAMCurr
SYNC
FREQUENCY
3041 G 8
3040 G 6
3039 F 6
3037 D 8
3036 E 6
3035 D 7
3034 J 3
3031 L 5
3030 L 4
3029 K 4
3028 K 5
3027 J 5
3026 J 7
3025 J 7
3024 K10
3023 K14
3022 M14
3021 M15
3020 L14
3018 L16
3017 I27
3016 O 3
3015 L17
3014 K16
3013 N15
3012 K21
3011 K18
3010 M 3
3009 L 3
3008 K21
3007 K21
3006 B22
3004 B20
3003 C19
3002 D19
3001 B18
3000 C17
2094 L10
2087 N10
2086 J18
2085 J17
2084 J18
2083 L15
2081 N 6
2077 B22
2074 A27
2073 A28
2072 A29
2071 D26
2070 A28
2069 L26
2068 I29
2067 I27
2066 I29
2065 L26
2062 I 7
2060 I26
2058 L16
2057 K14
2056 E17
2055 L 7
2054 L 8
2053 L 8
3081 M18
2052 M 8
2051 M 9
2050 B 5
2049 D 6
2048 E 6
2047 G 7
2046 G 7
2045 G 7
2044 G 8
2043 K24
2042 J 4
2041 J 4
2040 J 6
2039 J 7
2038 J 8
2037 J11
2036 M 5
2035 M 5
2034 O 3
2033 O 5
2032 K 3
2031 M15
2029 L14
2028 K15
2027 K16
2026 K17
2025 K16
2024 M17
2023 M14
2022 L19
2021 K19
2020 K19
2019 F 6
2018 K21
2017 J22
2016 K23
2015 K24
2014 E25
2013 L25
2012 E24
2011 D20
2010 E18
2009 O17
2008 E17
2007 E16
2006 E14
2005 B18
2004 C18
2003 C15
2002 C16
2001 C16
1000 D19
3052 K 6
3051 L 7
3050 J 9
3080 L18
3048 L 9
3047 L 9
3046 B 6
3045 D 5
3044 C 6
3043 D 4
3042 E 4
3060 C27
3057 M16
3056 L17
3080 L18
3079 N18
3076 L18
3075 L18
3074 N17
3073 O17
3068 L29
3064 A29
3063 A27
3062 C26
3061 D26
7060 J28
7051 G13
7050 B26
7040 O 6
7039 M11
7038 O11
7036 K19
7035 M19
7035 N19
7035 L19
7035 N16
7021 K 7
7020 J 5
7019 C 5
7018 C 6
7016 G 5
7015 F 4
7014 K 9
7013 J10
7010 I 8
7009 M 4
7008 M 3
7007 K15
7006 O 4
7005 L 4
7004 K22
7003 B20
7002 A20
7000 C17
6000 K16
5014 L 8
5013 K 8
5012 E 6
5011 H 7
5010 F 7
5009 G 8
5008 J 4
5007 K 6
5006 M 5
5005 J 7
5004 L 7
5003 M14
5002 N 4
5001 F25
5000 O 3
3085 M10
4
5
6
7
1
8
9
10
11
14
15
16
17
18
19
2
20
21
22
23
24
25
26
27
28
29
3
M
L
K
J
P
I
H
G
F
E
D
C
B
A
O
N
M
L
K
J
P
I
H
G
F
E
D
C
B
A
O
N
4
5
6
7
1
8
9
10
11
14
15
16
17
18
19
2
20
21
22
23
24
25
26
27
28
29
3
10n
2077
50V
10n
2069
50V
100n
2068
25V
10n
2066
50V
100n
2050
25V
22p
2049
50V
1n
2071
6V3
47p
2032
50V
200p
2029
2%
63V
10n
2062
50V
68p
2023
2%
63V
120p
2052
6V3
100p
2051
50V
100n
2038
25V
47p
2042
50V
27p
2041
50V
68p
2040
50V
68p
2039
50V
560p
6V3
2055
27p
2054
50V
33p
2053
50V
68p
6V3
2035
33p
2036
6V3
10n
2087
6V3
10n
2012
50V
330p
2014
50V
47n
2004
50V
10n
2007
50V
22n
2001
50V
100n
2006
25V
47n
2003
50V
33p
50V
2024
180p
2045
50V
100n
2020
25V
10n
2022
6V3
47p
2025
50V
10p
2031
50V
1n
2037
50V
68p
2044
50V
220p
2046
50V
18p
2047
50V
68p
2048
50V
1n
2067
50V
390p
2026
2%
63V
10n
2011
50V
10n
2013
50V
47p
2094
6V3
10n
2019
50V
47p
2081
6V3
100n
2009
220n
2056
25V
10p
2083
50V
10n
2057
50V
180p
2058
2%
63V
10n
2043
50V
100n
2084
25V
10n
2060
50V
8k2
3043
1k5
3068
47k
3010
3k9
3035
3k9
3037
1k5
3044
1k
3045
1k3
3021
2%
100k
3056
680E
3048
470E
3047
470E
3034
1k
3029
270E
3028
560E
3031
680E
3027
390E
3052
330E
3026
1k2
3025
560E
3051
1k
3049
470E
3030
1k
3050
4k7
3016
22k
3003
8k2
3001
1k8
3002
2k2
3024
1k
3040
22k
3006
470E
3041
470E
3085
1k
3000
560E
3015
220E
3012
47k
3075
1k5
3013
2k2
3018
1k
3022
4k7
3020
2%
2k2
3023
2k7
3039
2k7
3014
2%
10k
3017
22k
3076
22k
3081
10k
3080
33k
3079
18k
3074
18k
3073
18k
3004
100k
3011
2k7
3008
47k
3009
1M
3060
10k
3061
8k2
3062
820E
3063
22k
3064
1k
3007
5VA1
5VA1
5VA1
5VA1
5ASW
5VPB
5VPB
5VPB
5VA
5VPB
5VA1
5VPB
5VA1
5VA1
5VA1
5VA1
5VA1
5VA1
5VA1
5VA1
5VA1
5VA1
5VA1
5VA1
5VA1
47u
2065
6,3V
10u
2017
16V
220u
2034
6,3V
47u
2033
6,3V
10u
2085
16V
1u
2015
50V
1u
2016
50V
10u
2018
16V
10u
2021
16V
10u
2028
16V
10u
2027
16V
22u
2086
16V
2u2
2070
6V3
2u2
2074
6V3
100u
2072
6V3
4u7
2073
6V3
LC89979M-TE-L
7060
10
11
12
13
1
2
3
4
5
6
7
8
9
CLOCK
OUTPUT AMP
AND HOLD
SAMPLE
GENERATOR
RD VOLTAGE
GEN
TIMING
OUTPUT AMP
AND HOLD
CLOCK
SAMPLE
AUTO BIAS
CIRCUIT 1
853 STAGES
CCD
852 STAGES
CCD
CLOCK
CLOCK
CENTER
BIAS
CIRCUIT 2
AUTO BIAS
CENTER
2.5 STAGES
CCD
SHAPER
WAVE
SYNC TIP
CLAMP
BIAS
848.5 STAGES
CCD
PHASE
COMP
DRIVER
CLOCK
1/3
VCO
CIRCUIT
SWITCHING
CLOCK
VCC
NC
CLK
NC
GND
BC848B
7008
BC848B
7005
BFS19
7018
BC848B
7019
BC848B
7013
BFS19
7014
BFS19
7020
BC848B
7007
BC848B
7010
4k7
3046
1k2
3036
10k
3057
10k
3042
CSR
CSP
FMRV
CSYNC
FMPV
FSC
5ASW
LPV
IPBV
IREV
HSC2
INTSC
MES
ITRICK
CKPAL
DO
ACC2
VREC
VSB
CROT
FFP
ACC1
CSI
BC558B
7006
BF824
7021
BC858C
7004
LA7311
7050
VCC
PK DET
DEM
B.G
GND
13
14
2
11
12
9
7
10
3
8
4
1
6
5
16
15
DTA124EK
7003
DTA124EK
7000
DTA124EK
7002
DTA124EK
7015
DTA124EK
7016
DTC124EK
7038
DTC124EK
7039
DTC124EK
7040
DTC124EK
7036
DTC124EK
7009
560u
5014
8u2
5008
27u
5007
15u
5005
100u
5004
15u
5013
15u
5006
6u8
5002
15u
5001
100u
5003
27u
5009
100u
5011
15u
5010
220u
5012
6u8
5000
1u
2005
50V
1u
2002
50V
1u
2008
50V
47u
2010
6,3V
LM339
2
5
4
7035
LM339
9
8
14
7035
LM339
11
10
13
7035
LM339
7
6
1
7035
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
4,433619MHz
1000
1N4148
6000
10
Pin 25
LP
Z (2.5V)
S-LP
SP
H (5V)
L (0V)
Pin 27
Color Vector
Normal
LP features
NTSC-PB
H (5V)
L (0V)
Z ( )
Pin 30
MESECAM Z (2.5V)
NTSC
PAL
H (5V)
L (0V)
Cassette
normal
bad
good
ACC1
L
L
H
ACC2
L
H
L
Pin 40
2V
2.5V
1.5V
Pin 11
2.5V
3V
2.5V
IC7051
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
WHI
CLAMP
NOI CAN
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
+
-
GND
VCC
GND
VCC
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
Chrominance
Luminance
Playback
Record
Record
Playback
Chrominance
Record (Chrominance)
Playback (Chrominance)
Luminance