GRUNDIG Service
9
GV 67 …, GV 69 …
Platinenabbildungen und Schaltpläne / Layout of PCBs and Circuit Diagrams
Blockschaltplan / Block Circuit Diagram (S-VHS – Luminanz / Luminance, SH)
H/V
U EE
+5VW
5SW3
SR7
+5VW
43
VIDEO
OUT
7588
V
MIX.SYNC
VIDEO IN
Y/FBAS
48
46
SYNC
SEP
DET
AGC
3487
5
3
2484
BAS-OUT
4
7598
1052
7606
7612-
7634
-
+
7608
U NTSC
7806
SR7
7615
10
HI-P
7636
S-VHS
LPF
1054
LPF
1056
7654
BIAS
+
VHS
+5VW
7684
7678
7656-
7674
+
-
1060
2680
7713
7715
+5VW
6
9
8
7702
7700
S-SUB
EMPHA
14
7
5
14
11
1
16
3
6
8
7
9
7728
LPF
1058
7725
DELAYLINE
13
3
5
2FSC from CF
1525/11
7722/
3723
1-12 MHz
BPF
1-8 MHz
BPF
7770
7762
7766
PB-FM
25
20
21
19
18
+5V
7518
+
22
23
30
29
15
7530
PBA-VHS
35
36
EQUALIZER
PBA-
S-VHS
U SVHS
U
VHS
40
38
6
REC-EE/PB
VHS
DET
LIM
FM
DEMOD
VCA
DO
APT COUNT
CRISPENING
WC/DC
EMPHASIS
FM
MODULATOR
DOC
DO
S
V
S
V
PB
S
V
7689
7734-
7744
11
12
13
7800
SR8
14
7
7508
S
V
7562
7585
42
2
3
5
6
7
REC
PB
16
14
REC
PB
PB
REC
7810
2
7
12
REC
PB
11
12
7768
7764
7717
PB
REC
τ
7782
1524/14
1524/13
3610
3608
6
1
4
(CRISPENING)
APERTURE VHS
(CRISPENING)
APERTURE S-VHS
7686
7688
PB - S-VHS DET
FFP
S-SUBEMPHASIS
REC-FM
6
1
14
7
1530
to CF
7050/3
to CF
7050/1
from CF
7062
7520
5
4
U VHS
U SVHS
U PB
U LP
DELA
Y
LINE
NP/LP
PC-1
PC-2
PC-3
5800
from SF
to SF
8
1
1 2 3
9
3765
3513
3507
3509
3503
3515
3521
7546
32
U NP
U NP
U VHS
3637
YNR
from/to VS
3543
+5VW
34
7690
REC
108
96
97
98
99
100
101
103
106
105
89
86
DC
WC
WV-…
SV-…
YWV
DP
EE
104
102
Reference
Oscillograms...4-85, 27
AU ......................4-36
CC ......................4-47
CF..........................15
CU ............4-70/77/84
DC ............4-67/75/82
DE ......................4-51
FE.......................4-27
HC ......................4-59
IO .......................4-33
OS ......................4-62
PS ......................4-23
SF ..........................21
SH .........................17
SP ................not used
TM ......................4-61
VP ......................4-62
VS ......................4-55
VT.......................4-39
Seiten "4-…" – siehe Basis-Service-Manual / Pages "4-…" – see Main Service Manual
