Grundig GV 640 NIC Betriebsanleitung Seite 38

Platinenabbildungen und Schaltpläne / Layout of PCBs and Circuit Diagrams
Blockschaltplan / Block Circuit Diagram (Video/Chroma)
Record Playback
TELETEXT (VT, OPTION)
Luminance Luminance
2
I C
Chrominance Chrominance
24 9
DISPLAY CONTROL (DC) 13
TELETEXT
7140 14
16 17 18 20
R G B
10
CV VIDEO
7080
RGB-PAL 6
ENCODER
4 2
2
1514
IO-BOARD
7039
19
20 22
12
Y
20
4
7150
7213
8
(DC)
16
Y 7100
8
10
RGB
15
SCL LPF
7098
20
8 16
16 1
SDA
3
6
10
only VPT
18 24
7077
19 3094
(only for OSD)
1639 1638
5 7 10
7664/7650
(OS)
SECAM
(TM) (TM)
7832
7834
13
7690 (OS)
2
5
1624
(TM) 1
Y 15 OPTION
BGI
7830
7115
7 (FE)
Y
1
7115 FOLLOW
TV
3
7035/19
(CC) 2 3
(FE) (FE)
EURO
1108
TV
Y 7115
10
1 10 17
1
TU MOD
14 8 2
Y
7050 (TM)
1750
7015-7045
(DE)
FE FAMILY BOARD
4 - 19
GV 64 ..., GV 65 ..., GV 66 ..., SE 6106 HiFi
(VP)
CVBS VT
7 VPS/PDC
7720
6 +5VW
2
1 25
I C 7550
only OSD 7552
29
V-SYNC 2
CS-VT
9
7120
4,3MHz
C- 28
SYNC
1 COLOUR
KILLER
3 FSC
1
1527
14
+
7320 (VS)
37
6 12 7 REC
4
PB
7
Y Y
5 7092 7165
2324
4
AGC
44 43
REC
11
11 V
INS
PB
7335
14
SYNC
SEP
36
9
Y
3435
:8
PHASE
not for OSD
MIX x321
SHIFTER
SYNC
7655
12
(OS)
7670/
7674
BAS
REC
Y-LPF
19 15
PB
3,5MHz
Y
REC/PB
REC/PB
DET
OSD
8 33 45
(SR6) PIC-CON
4,2V 7370 /4/5/13/14
5SW1
9 10 11 20 17
CS-VT
(CC)
(DE) 1528/1
7097-
7099
PLL-SYNC
7083
(DE)
7091
7092
(DE)
7
21 23 19 6
7019
SR1
Platinenabbildungen und Schaltpläne / Layout of PCBs and Circuit Diagrams
1,07MHz
25 24 21 19 15
REC
1:4
REC PB PB
7578
REC
x2
PB
32 31 8 10 3
U SEC-W
(SR5)
4,3MHz 2,14MHz
7380/6
4,3MHz
PB
38
REC C-LPF
4,43
PB
ACC REC
627kHz
FSC
MAIN
PB
BPF
REC
NTSC/PAL
17
5,06MHz
MESECAM
19
627KHz XO 27
VXO
SUB
4,43MHz 28
21
LP PB
NAP
25
23
Y/C
MIX
DOC
34
PICTURE
CONTROL
13
AGC
DOC
ON/OFF
NL 15
DEEMPHASIS
38
REC
46
PB
47
NL EM DEEMPHASIS
24
43
PREEM FM FM
LIM
W/D MOD DEMOD
3 2 1 48 44 22 26
UNORM
39
(SR5)
7380 / 4/12
(VS)
7275
5SW1
5V NTSC
MESECAM
2,5V
2 0 PAL
6 BAS
SYNC
CVS
3 SEP.
(VS)
7082
7360
5SW1 +5VW
(DE)
7370/6
(SR6)
NTSC
U PB U LP
DO
5 30 59
7085 (DE)
GRUNDIG Service 4 - 20
Reference CU .........4-70/77/84
Oscillograms ....4-85 DC .........4-67/75/82
AU....................4-36 DE ...................4-51
CC ...................4-47 FE....................4-27
SECAM-L (SE)
1,07MHz
27
18 16 14
1,07MHz
REC
17
3581
23
UNC. FM
PB
REC/PB DETECT 26
7560
ϕ
11
REFERENCE
U PB
9
7085/5
2557
7598
8
4,43MHz
SECAM
SECIDENT 1
7588/7593 DETECTOR
10
627kHz to TAPE
CAP
3387
7225
UNC.FM
40
45
4
2
1060 18
46
16
7235
5SW1
47
3
23
+
Y 7240
Y 8,2V
19
7340
Y
Y
12
22
X3 NTSC
48
(SR5)
34
SC
9
35
7
EP
LP
EQUAL.
SQ-PB
7380/6
SWEST
(SR5)
7185
7300
7184
7150
Y
42 3383
7180
SQ-PB
7165/
7170
VHS
SVHS ACC+
Y7203...Y7217
YAP
FM to TAPE
BPF
MIX-SYNC
7320/9
(from HC)
FMEP ENVC
AUTO
SEC-E
36 45 50 7 32
GV 64 ..., GV 65 ..., GV 66 ..., SE 6106 HiFi
HC ...................4-59 TM ...................4-61
IO.....................4-33 VP....................4-62
OS ...................4-62 VS....................4-55
PS....................4-23 VT....................4-39
7583
1,1MHz
23 15
31
28
33
27
LP
LP
19
7600
(HC)
1
NP
30
SP
18
32
21 24
FLY. ER.
14A
7615
(HC)
+12VF
1
7649
(HC)
(HC)
3 5 7618
U REC
SP/LP
18 61
27
FLY-ER
GRUNDIG Service