Platinenabbildungen und Schaltpläne / Layout of PCBs and Circuit Diagrams
GV470…
Platinenabbildungen und Schaltpläne / Layout of PCBs and Circuit Diagrams
GV470…
4 - 8
GRUNDIG Service
4 - 8
GRUNDIG Service
Blockschaltplan (Analog) / Block Circuit Diagram (Analog)
MIX SYN
INPUT/OUTPUT (IO)
FAMILY BOARD
FM AUDIO (AF)
KEYBOARD UNIT (DC II)
FRONT END (FE)
S-VHS BOARD
LUMINANCE (SH)
CHROMINANCE
(SF)
TELETEXT ”DOS” (VT)
26
39
56
66
26
65
29
Y
C
69
57
60
30
25
Y
C
SECAM
PAL
TRANSCODER (SP)
5/1514
C
DC
S-IN
Y
3/1514
CVS FRONT
CH FRONT
EURO-AV2
(DECODER)
SC2 in
R_SC2 CHROMA
CCVS
17
16
15
19
20
14
13
12
11
10
9
8
7
RGB
CVBS I/O
YC
IN
IN
G_SC2
B_SC2
AV2in L
AV2in R
16-9out
(DC OFFSET)
CCVS
HF
(FBAS
HF)
CCVS OS
CH OC
(DCI)
(SF)
(SH)
CVSOS
CH OS
CVS
(FE)
(SH)
13
3/1524
2/1524
2/1525
1/1525
K2
K1
3/1525
5.74MHz
5.5/6MHz
TUNER
22
20
2
28
7 MHz
RF-BOOSTER/
MODULATOR
27
1
1
7800
1138
1134
SECAM
PAL
VIDEO
CLAMP
AUDIO
MOD
AERIAL
MOD
PLL
CHANNEL
ADJUST
MOD
G
IN
AERIAL
OUT
18
1148
3PYH
1152
14 13
5
1180
1
20
SOUND TRAP
14
13
12
13
17
15
16
2
19
22
27
10
7
CVS
TO SECAM BOARD SE, 1/1523
CH
CCVS SF
CCVS SF
PB
REC
EE
AN3255
7840
7615
7930
1090
7840
7470
7170
PAL
SEC
PB
48
18
REC
M52062
7898
+5VW
NP
VHS
V
S
R
PB
1080
48
5
5
10
8
6
16
14
6 14
COMP
4
1 3
46
16
24
21
13
1530
(DE/IO)
5
EE
LEVEL
CCVS/CVS
+5VF
34
SYNC
PB
RAE*
24
5
FROM SE 3/1523
FM
DEMOD
LIM
LIM
VHS
DET
EQ
SYNC
SEP
AGC
DET
3MHz
5MHz
40
8
12
1
2
3
4
STROBE(DE)
DATA_2(DE)
CLOCK(DE)
DATA_3(AF)
5
3
10
8
FBASHF
(IO)
(IO)
(IO)
(LUMINANCCE OUT)
(IO)
(CHROMA OUT)
AFC
(DE)
(AF)
MOD
7790
SHIFT REGISTER
7900
TDA 3852
19
18
AGC
DET.
AFC
DET.
17
SDA-A
AST(DE)
20
U
UHF
VHF
MIX
MIX
G
G NOT FOR
PAL I
3
9
10
7
8
11
12
AUDIO
VIDEO
20
7160
7120
VPS
16
17
1
9
10
44
45
47
R
G
B
36
7140
7190
RGB
YC
CXA1145
COMUTER
CONTROLLED
TELETEXT
1
7850
AUDIO-R
HF_MONO
ONLY PAL
AUDIO-L
SCL-A
RAM
8k
SDA-A
NOT FOR PAL I
STEREO/
DUAL SOUND
DECODER
10 9
NICAM
DECODER
FM2
DEMOD
FM1
DEMOD
AM
DEMOD
NIC-CARR
14
(SF)
15
2
4
6 8
20
18
17
16
B
G
R
14
13
11
7390
1
3
5
15
10
CH(CHROMA out)
SCL-A
(AF)
(AF)
(AF)
37
38
39
SCL-A
SDA-A
SDA-A
R SC1(CHROMA)
CH
AV2out R
AV2out L
6
3
2
1
C
S-OUT
Y
2
IIC BUS
7
(DCI)UAV2
(DCII) U16/9
IIC BUS
17
15
19
SC1 in
SC1 out
G
B
CCVS/CVS
(VIDEO LUMINANCE
INPUT)
R/CHROMA
RGB OUT
YC I/O
CVBS I/O
16-9 out
K
4
5
6
7
11
12
13
10
3
WR AF1
1
14
M
L
BOX/SEC
20
EURO-AV1
SHIFT
REGISTER
7375
SR4
14
13
12
11
10
9
8
7
6
3
2
1
7380
3
1 5
20
6
16
17
14
18
2
4
13
CCVS TR
CVBS
SDA-A
SCL-A
15
11
5
5
6
8
3
1
TXT INSERT
TXT
INSERT
CVS OS
CSVS VP
(LUMINANCE OUT)
7400
1
3
16
10
14
7410
7415
8
11
10
1/1514
7400
7346
16
1
6
9
7410
7408
6
TXT INSERT
CVS OS
CVS
CCVS OS
11
14
8
CINCH
FRONT
(DC II)
B
G
R
CHROMA
SR_A
DATA
STROBE
CLOCK
DATA_5
SHIFT
REGISTER
SR_B
SR_C
SR_D
SR_E
SR_F
SR_G
4
10
5
3
1
6
7370
SR3
7
14
13
11
12
2
PB
SW/SE
S+5VA
B/W
COMPOSITE
SEC-W
SEC-E
NTSC
S1/S2
SVHS
VHS
SEC
IVP
PC_1
PC_2
PC_3
EDIT
PB
SPC_2
SPC_1
EE
A1
TRANSC
COMP
LP
4
EE
42
4
14
EF
(DE)
3
19
12
(DE)
13
DATA
(DE)
5
3
3
3
1
10
10
1
1
2
2
2
7
6
11
SHIFT REGISTER 7
12 13
7480
14
4
5
7
6
11
SHIFT REGISTER 6
12 13
7590
STROBE
CLOCK
SHIFT REGISTER 5
7610
14
4
5
7
6
11 12 13 14
COL.KILL.
PILOT
BURST
ERASE
7670
U
R
G
B
V
Y
C
SYN
17
3
7640
IIC BUS
V
S
7
S
S
VHS
29
S 26
42
5
4,43MHz
NTSC
NTSC
SWEST
NTSC TO
QUASI-PAL
CONVERTER
SYNC
HPLL
2
+45
-45
B/W
SEC-E
9
45
V
V
30
1
2
3
3
8
10
9
8
EE
V
INS
V
FS
NTSC
7
43
42
DO
V
S
7881
7950
CCVS
64
µ
S
EF
1
5
6
IIC BUS
1
18 4 3 19 32
7420
SDA-A
23
7
41
SDA-A
SDA-A
CVS
SCL-A
SCL-A
LOGIC
SVHS-DET
UAV1
(FE)
(DE)
(DE)
(DE)
38
AUDIO-R
(FE)
39
14
11/1530
18/1530
AUDIO-L
(FE)
40
AUDIO-MOD
(FE)
37
HF-MONO
(FE)
(SF)
DATA3
AUDIO-L REC
AUDIO-R
AUDIO-L
HEAD
PHONE
LINE IN
RIGHT
EE/PB
EE/PB
AUDIO MOD
CFVR_R
2/1518
3/1518
7/1518
5/1518
7300
23
22
27
30
28
48
7
3
9
4
8
10
16
17
SCL SDA
20kHz
LE
TDA9610
OU
AUDIO-R REC
LINE
IN L
MUTEAF
STD–PB
(PAL I mono)
MUTEAF
LINE
IN R
REC
PB
STD-PB
(PAL I mono)
AV2in L
20
AV2out L
AV1out L
AV1in L
LINE
OUT L
LINE IN
LEFT
LINE
OUT R
21
17 19
16
18
8
6
15
7280
AUDIO
IN/OUT
SELECT
AUDIO
IN/OUT
SELECT
14
AV1in R
4
AV2in R
5
AV2out R 11
AV1out R 13
SDA-A
OPTION
ONLY FOR SECAM L
NOT FOR SECAM L
SCL-A
60
61
57
56
(SCL-B)
(SDA-B)
16:9 (+5V)
PLAYBACK VIDEO/YC
PLAYBACK AUDIO
RECORD AUDIO
RECORD VIDEO/YC