Platinenabbildungen und Schaltpläne / Layout of PCBs and Circuit Diagrams
Platinenabbildungen und Schaltpläne / Layout of PCBs and Circuit Diagrams
4 - 12
GRUNDIG Service-Technik
4 - 12
GRUNDIG Service-Technik
Chassisplatte / Family Board – Video/Chroma, In/Out (VSIO)
not for 4 head
not for 4 head
only for Longply
...V MEASURED IN RECORD MODE
...V MEASURED IN PLAYBACK MODE
4.8V
0V
0V
0V
0V
0V
2.5V
2.5V
5.0V
5.0V
4.2V
0.4V
0.7V
0.7V
1.8V
2.4V
4.8V
2.6V
3.3V
4.8V
8.0V
1.9V
2.4V
1.9V
2.5V
0.5V
0.6V
4.8V
3.1V
0.5V
0.5V
3.1V
1.6V
1.3V
4.8V
3.6V
4.8V
2.0V
2.2V
3.1V
2.2V
2.2V
2.5V
1.2V
2.8V
2.9V
1.6V
2.1V
2.1V
3.7V
2.0V
0.5V
2.4V
4.2V
3.0V
4.8V
1.9V
2.3V
3.3V
3.3V
3.2V
3.8V
0.6V
0.5V
2.2V
0.6V
1.2V
1.5V
2.2V
0.3V
1.4V
3.0V
0.6V
1.6V
2.3V
4.8V
0.6V
3.1V
1.4V
3.3V
3.0V
0.6V
2.2V
2.1V
2.7V
4.2V
2.4V
2.4V
4.2V
2.5V
2.4V
2.9V
2.1V
2.7V
2.3V
3.0V
3.4V
0.4V
4.8V
2.0V
1.2V
0.6V
4.8V
3.0V
3.4V
2.8V
2.4V
4.8V
0.4V
4.6V
0.2V
0V
0V
1.1V
1.3V
4.8V
4.8V
0V
0V
1.2V
1.2V
0V
0V
0V
0V
0V
0V
1.2V
0V
0V
0V
0V
0V
.. OSCILLOGRAMS
11
12
13
14
15
16
17
18
19 20
21
ENVC
TRIV
HSC
HP1
FMPV
FMPV
FMPV
FMRV
FMR
V
AMLP
REV
VBS
CSYNC
VSB1
VSB1
BGP
BGP
VSB
LP
LP
LP
DO
DO
FMR
FMR
AMLR
CSI
CSI
FFP
SECDET
SECDET
SDA
SCL
CROT
VFV
AFV
only for Secam
not for 4 head
2%
2%
2%
2%
2%
2%
2%
F5
TO DE
TO FV
to Head amplifier L6
GNDA
FMPV
+5A
REV
ENVC-IFEO
HSC
HP1
FMR
V
GNDA
TRIV
VPS
FM PROCESSING
E/E LEVEL
SYNC FREQ
.
DEVIA
TION
Y-PB LEVEL
1H CCD
Y REC LPF
CHR PB LPF
CHROMINANCE
WRITING CURRENT
LUMINANZ
WRITING CURRENT
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
1n
2099
10n
2107
2005
100n
2090
2098
33n
2301
27p
2300
100n
2302
15p
2106
100n
2025
82p
2027
120p
2033
100p
2026
100n
2064
1n
2063
33p
2000
1n
2061
47n
2056
100n
2055
100n
2088
47p
2029
120p
2028
100n
2042
22n
2034
1n
2086
47p
2071
27p
2069
68p
2068
68p
2065
330p
2087
27p
2066
33p
2067
18p
2004
220p
2003
180p
2002
68p
2001
2019
150p
390p
2013
150p
2039
1n
2080
10n
2045
47n
2048
27p
2050
1n
2010
10n
2015
27p
2017
47p
2014
10n
2079
2020
100p
68p
2038
47n
2057
47p
2096
47p
2095
2097
22n
2043
82p
2070
47p
2211
120p
2101
100p
2018
1n
2072
27p
2100
5023
330u
5024
560u
5006
8u2
5015
56u
5016
27u
5008
8u2
5010
27u
501
1
15u
5012
100u
5013
15u
5004
15u
5003
100u
5014
8u2
5009
15u
5025
27u
5017
56u
5002
27u
5005
27u
5VL2
5VL2
5VL2
5VL2
5VPB1
5VPB1
5VPB1
+5D
+12A
5VA
-28V1
5VAS
+5D
5VL2
5VL2
5VL2
5VL2
5VL2
5VL2
5VPB1
5VL2
5VL2
5VL2
5VL2
5VL2
5VL2
5VL2
5VL2
5VPB
5VL2
-7V
7051
LA 7191
DO
STOP
FM
K
LPF
SUB
LIM
DEMOD
DOUBLE
MAIN
ROTARY
DE EMPH
SHIFT
1/2fH
LP/SP
AMP
FM MOD
VIDEO
+
+
INSERT
FBC
LIM
CORR
+
6dB
ENH
VCC1
DETAIL
6dB
P
R
P
R
-
+
NL
BGP
EMPH
LPF
DOC
N
CHROMA
-6dB
AGC
W/D
CLIP
VIDEO
MAIN
EMPH
CLAMP
DET
AGC
DELAY
LPF
CLAMP
DO
3.5MHz
DET
CLAMP
-
CLIP
o
ID
DE EMPH
BGP
P
5.06M
BPF
PAL
VCA
CLAMP
BGP
ID
SW
P
R
PROTECT
3RDLOCK
SHIFTER
4PHASE
1/2
CONV
VXO
SUB
XO
321xfH
BGP1
BGP GEN
VCO
+
BGP2
DIV
NOICAN
SIDEL.
NL
ADJ
DET
1/2H
KILL
GND
SELECT
FILTER
MIX
Y/C
SYNC
X 2
P
-
PICTURE
CONTROL
NOICAN
WIDE
SEPA
SYNC
B.DEEM
KILLER
PB-AMP
SYNC
4.2V
REF
6dB
B.G
ACC
DET
ACC
AMP
S
P
P
P
B.G
DET
P/S
BALANCER
W/D
P
VCC2
BURST
P
EMPH
VIDEO
SP
LP
BGP
B.G
R
4.43M
ID DET
BPF
KIL DET
1MHz
MAIN
CONV
KILL
LPF
P
90
P
R
R
P
R
R
R
R
R
R
P
P
P
R
R
R
R
PB APC
REC APC
DET
DET
REC AFC
DET
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
0E
3951
0E
3905
2k2
3040
3136
3k3
3097
12k
31
16
100E
3309
100E
3308
3k9
3038
6k8
3301
3k3
3300
1M
3302
5k6
3307
1M
3306
1
330
100k
3135
820E
3055
100E
31
19
18k
31
17
2k2
3030
10k
31
13
2k2
31
12
680E
3027
470E
3111
5k6
3054
2k2
3046
1k
3044
22k
3088
18k
3078
100k
3025
33k
3031
560E
3064
18k
3077
4k7
3045
470E
3001
1k
3100
1k2
3105
4k7
3104
5k6
3019
10k
3017
270E
3063
1k8
3062
560E
3043
1M
3087
820E
3086
22k
3085
1k
3073
270E
3072
560E
3109
680E
3071
390E
3070
390E
3067
1k2
3066
560E
3069
1k
3068
1k
3065
2k7
3021
1k2
3037
3k9
3036
820E
3022
3k3
3092
1k
3089
1M
3051
8k2
3052
270E
3106
1k
3033
2k2
3034
1k5
3093
1k
3090
4k7
3028
1k
3023
2k2
3094
1k
3121
22k
3008
22k
3128
470E
3075
5k6
3091
680E
3132
4k7
3029
100E
31
14
330E
3076
1k
3137
7004
DTA124EK
7038
DTA124EK
7037
DTA124EK
2035
1u
2085
100u
2046
1u
2047
1u
2032
1u
2040
10u
2041
10u
2009
10u
10k
3096
4k7
3010
4k7
3018
2k2
3099
10k
3039
4k7
3020
DO
+5D
+12A
VFV
AFV
5VA
-28V1
SDA
SCL
MODON
CROT
I8SC112
IPBV
ESPBH
FFP
CSYNC
LP
HP1
HSC
TRIV
ENVC
2012
1u
9011
7036
BC848B
7017
BFS19
7031
BC848B
7016
BC848B
7032
BC848B
7019
BFS19
7026
BC848B
7025
BC848B
7029
BFS19
7030
BC848B
7001
BC848B
7007
BC848B
7018
BF824
7006
BC858B
COMBFILTER
1603
CF873
2
1
4
3
DTC124EK
7020
LM339
2
4
5
7053
LM339
1
6
7
7053
LM339
9
8
14
7053
101
1
2
3
4
5
6
7
8
9
10
6001
1N4148
6004
BA
T85
6002
1N4148
4k7
3026
BZX79-C6V8
6508
2058
2u2
2059
1u
2052
10u
2084
4u7
2083
2u2
2082
2u2
201
1
10u
12
3
10
11
13
7053
LM339
1601
4.43MHz
7504
MSM 7403 RS
VOB
OUT
VIDEO
IN
VCC
VIDEO
CLK
VSS
VDD
COMP
5
4
3
6
2
7
1
8
SEC BG DETEKTOR
7505
LA7311
VCC
PK DET
DEM
B.G
GND
13
14
2
11
12
9
7
10
3
8
4
1
6
5
16
15
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