Circuits imprimés et schémas électriques / Layout of PCBs and Circuit Diagrams
Circuits imprimés et schémas électriques / Layout of PCBs and Circuit Diagrams
4 - 29
GRUNDIG Service
4 - 30
GRUNDIG Service
Circuit principal / Family Board – Video/Chroma (VS)
13
14
19
16
15
1
21
17
12
11
3V
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
norm
schl
s.gut
ACC+1 ACC+ 40
11
0
0
0
0
1
1
2V 2.5V
2.5V
2,5V
1,5V
BAND
CROT
CROT
FFP
FFP
FMRV
FMRV
HP1
HP1
HSC
HSC
TRIV
TRIV
ENVC
ENVC
CSYNC
CSYNC
CSYNC
HSC2
HSC2
FMPV
FMPV
FMPV
LPV
IPBV
IPBV
CSR
CSR
VSB
VSB
INTSC
INTSC
ACC+1
ACC+1
ACC+
1
CSP/H_2
CSP/H_2
ACC+
2
ACC+2
ACC+2
FMSW
FMSW
ITRICK
ITRICK
IREV
IREV
FSC
MES
MES
DO
DO
VREC
VREC
CKPAL
CKPAL
0.4V
0V
2.4V
1.7V
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
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
not used
From DE
From DE
To IO
(2,5V)
(2V)
(1,5V)
not used
for mstd or palbg/secdk only
560p...for PAL only
Pos.2055
68p...for LP only
Pos.2035
for MULTISTANDARD or
LP only
for ACC+ only
To OHA 1910
only for mstd
for VPT/TXT only
for NTSCPB only
Pos.2025, 3056, 3057 not used
for ACC+ only
GNDA
FMRV
HP1
HSC
TRIV
ENVC
CSYNC
5VSWA
FMPV
GNDA
FROM TO DE
FROM TO IO
FM-PROCESSING
for ACC+ only
only for mstd
not used
not used
SECAM Curr.
PAL Curr.
-4A
-4B
-4C
-4D
5.1V
0.7V
1.3V
0.4V
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
4
5
6
1
7
8
9
10
11
12
13
14
15
16
17
18
2
19
20
21
22
23
24
3
M
L
K
P
J
I
H
G
F
E
D
C
B
A
O
N
4
5
6
1
7
8
9
10
11
12
13
14
15
16
17
18
2
19
20
21
22
23
24
3
CSP/H_2
FSC
5VSWA
5VA
5VPB
FMPV
LPV
IPBV
IREV
FMSW
HSC2
INTSC
MES
ITRICK
CKPAL
DO
ACC+2
VREC
VSB
CROT
FFP
ACC+1
CSR
HP1
ENVC
HSC
CSYNC
TRIV
560E
3007
2%
1k3
3021
100k
3056
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
470E
3030
1k5
3050
4k7
3016
22k
3003
8k2
3001
4k7
3072
47k
3071
100k
3070
1k8
3002
2k2
3024
1k
3040
22k
3006
1k5
3044
4k7
3046
470E
3041
470E
3085
1k
3045
1k
3000
5%
680E
3015
47E
3012
47k
3075
1k5
3013
2k2
3018
1k
3022
2%
4k7
3020
2k2
3023
2k7
3039
3k9
3037
8k2
3043
2%
2k7
3014
22k
3076
22k
3081
10k
3080
33k
3079
18k
3074
18k
3073
0E
3935
22k
3004
3035
100k
3011
3055
68p
2032
2%
200p
2029
10n
2062
2%
68p
2030
120p
2052
100p
2051
1n
2043
100n
2038
47p
2042
27p
2041
68p
2040
82p
2039
330p
2055
27p
2054
33p
2053
82p
2035
56p
2036
10n
2087
47n
2004
10n
2007
22n
2001
100n
2006
47n
2003
22p
2049
33p
2024
180p
2045
10n
2080
100n
2020
2022
2025
10p
2031
1n
2037
68p
2044
220p
2046
18p
2047
56p
2048
100n
2050
2%
2026
390p
10n
2011
47p
2094
10n
2019
47p
2081
100n
2009
2056
5%
10p
2083
10n
2057
5014
560u
5008
8u2
5007
27u
5005
15u
5004
100u
5013
15u
5006
15u
5002
6u8
5003
100u
5009
27u
5011
100u
5010
15u
5012
220u
5015
10u
5000
10u
5VPB
5VA
5VSWAS
5VA
5VSWAS
5VPB
5VPB
5VSWA
5VPB
5VSWAS
5VSWAS
5VSWAS
5VSWAS
5VSWAS
5VSWAS
5VSWAS
5VSWAS
5VA
5VSWA
5VSWAS
5VSWAS
5VSWAS
5VPB
5VSWAS
DTC124EK
7038
DTC124EK
7039
DTC124EK
7040
DTC124EK
7036
2017
10u
2034
220u
2033
47u
2085
10u
2018
10u
2021
10u
2028
10u
2027
10u
2086
22u
7009
BC848B
7013
BC848B
7014
BFS19
7020
BFS19
7030
BC848B
7019
BC848B
7007
BC848B
7018
BFS19
7010
BC848B
BC858C
7004
BC558B
7006
7021
BF824
DTA124EK
7003
DTA124EK
7000
DTA124EK
7002
DTA124EK
7015
DTA124EK
7016
2005
1u
2002
1u
2008
1u
2010
47u
LM339
2
5
4
3
12
7035
LM339
9
8
14
7035
LM339
11
10
13
7035
LM339
7
6
1
7035
10k
3057
10k
3042
10k
3038
1k2
3036
1911
1
2
3
4
5
6
7
8
9
10
LA7437
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
ME
R
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
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
11
32
12
31
10
33
13
30
14
29
15
28
GND
VCC
VCC
1000
4,433619MHz
1N4148
6000
10
EE/RE
V puls
Pin 27
Color Vector
Normal
LP features
NTSC-PB
H (5V)
L (0V)
Z (1.2…3V)
Sync.
Frequ.
