GV470…
Platinenabbildungen und Schaltpläne / Layout of PCBs and Circuit Diagrams
GV470…
Platinenabbildungen und Schaltpläne / Layout of PCBs and Circuit Diagrams
AUDIO LINEAR (AL)
KEYBOARD UNIT (DCII)
SECAM BOARD (SE)
#
HEAD AMPLIFIER (HA/HV)
50
49
78
48
63
64
61
62
76
35
(DE)
41
(SH)
42
EE
(SF)
6
(DE)
5
4,43MHz
C
17
47
45
EE
V-
INSERT
V
PC_1/2/3
NTSC
FSC/2FSC
34
30
32
36
5.06MHz
SEC
+5VF1
SYNC
FREQ.
VHS
SVHS
SVHS
VHS
25
21
20
7840
FM
MOD
S
V
SPC_1
SPC_2
UNC:FM
TO SE
7/1523
6.27kHz
SPC_1
SPC_2
1
11
6
21
15
38
PB
E1/E2
ACC
7
43
EF
M
SVHS
COMPOSITE
2
HI-CH
NTSC
SECIDENT
SYNC
PLL
VCXO
SUB
M
PILOT
BURST
GEN
321 fH
PLL
ROTARY
V
SHARP
NESS
NP
11,12
13
7840
HOR
NOISE
CANC
YNR
DO COMP
42
40
19
DEVITATION
DO
V
S
7950
CCVS*
64
µ
S
4
17
SDA
20kHz
REC
MUTE
61
51
55
3455
1.4MHz
1.8MHz
11
56
6
1
2
3
26
24
13
7250
MUTE AL
MUTE MICRO
12
EE\PB
11
4
7
WR-AL3
CLOCK2(DE)
27
25
24
20
12
9
21
8
23
7220
LA7282
AUDIO PB
22
11
34
DATA1(DE)
29
2/1507
4/1507
5/1507
6/1507
HP2
FMAP
FMAP
RAF
2L7
3L7
4L7
6L7
(DE)
WR-AF1
HI-S
IO,1.3/7.375
30
AUTOSEC
35
(DE)
(DE)
23
(DE)
22
(DE)
4
STROBE(DE)
WR-AL2
REC\EE
SHIFT
REGISTER
5
FMES
FMAR
LIMITTER
LOGIC
FM
DEMOD
SAMPLE
AND HOLD
FM MOD
1.4MHz
AUDIO
CLIPPER
PB
NOISE
REDUCTION
RIGHT CHANNEL
LEFT CHANNEL
OUTPUT SELECTION
LINEAR
STD-PB
RIGHT
LEFT
SDA SCL
47
6
5
33
MICRO
3385
AUDIO LEVEL L
AUDIO LEVEL R
AUDIO PB
9/1518
10/1518
MUTEAF
WR/AF2
32
31
AUDIO REC
CENTER
FREQU.
3380
3402
IN/OUT (I/O)
31
WRV
+12VD1
26
12
12
8L6
7L6
HSC
REV
REV
REV
REV
HP1
analog_9404
HG–M9
SDA–A
SDA–A
HSC
HP1
AGC
23
ENVC
IFEH2
TRIV
15
33
11
10
9
21
11
2/1506
9/1506
4L6
17
27
1
20
21
11L6
FMRV
FMPV
11/1506
5/1506
6/1506
25
28
9
UNC.FM
HI-P
(DE)
(DE)
(DE)
INSERT
MIXSYN
(SH,DE)
CHROMA
ROTATION
BSL
FMEP(DE)
NP/LP(DE)
4
1
20
CON.FM
3684
7/1506
6L6
9L6
HSC
HP1
HSC
FEH2
REC
REC
REC
REC
REC
REC
FE-HEAD
OSCILLATOR
IFEH2
FEH1
REV
HSC2
HP1
NORMAL PLAY
NORMAL PLAY
LONG PLAY
LONG PLAY
10L6
4/1506
3/1506
HI-P(DE)
NP/LP(DE)
3
FMT.T.
1530
(IO)
1.6MHz
SEC-E
COMB
FILTER
1H/2H
1H/2H
180
°
CLK
FSC/2FSC
+15VW*
HI-CH
+15WV*
UNC.FM
SYNC FREQU.
+5VF1
Cloche
2.2MHz
4.4MHz
1.1MHz
Anticloche
1.07MHz
x2
x2
1082
1205
3/1523
9/1523
SW/SE
12/1523
3220
SECAM
WRITING
CURRENT
11/1523
5/1523
1.1MHz
LA7311
7015
SECAM
IDENT
FSECAM
SEDIDENT
7/1523
1/1523
14/1523
IIC BUS
x2
2L6
19
CPV
REV
REV
SH1
9L10B
3L10B
MAIN ERASE
OSCILLATOR
4
6
15
WR-AL3
PB
17
13 14
2,6,5
MAIN
ERASE
HEAD
LINEAR
AUDIO
REC/PB
HEAD
LINEAR
AUDIO
ERASE
HEAD
HLK
AWK
TLK
3/1503
1/1503
4/1503
3312
ERASE
OSC.
5/1503
2/1504
1/1504
1
REC
REC
PB LEVEL
PB
REC
ALC
AUT.
LEVEL
CTL.
EP
LP
(DE)LP
(DE)
EP (FOR NTSC-PB)
MUTE
WR-AL2
BIAS ADJ.
11
10
9
8
7150
TEA5712
2L10B
1L10B
2L10C
1L10C
ROTATING
TRANS-
FORMER
7050
TEA5704
– REC –
(HA)
AUDIO
VIDEO
(HV)
– PB –
6
7
4
9
8
11
8L10B 7L10B 6L10B 5L10B 4L10B
SHC
SH2
LH2
LHC
LH1
HEAD-
DISC
GRUNDIG Service
4 - 9
GRUNDIG Service
4 - 9