Inhaltsverzeichnis
Werbung
Platinenabbildungen und Schaltpläne / Layout of PCBs and Circuit Diagrams
Chassisplatte / Chassis Board – Video/Chroma (VS), Standardton / Standard Sound (AL)
1
2
3
4
5
A
Record
AINFL
AINFL
Luminance
AINFR
Chrominance
AINFR
Standard Sound
AIN1L
AIN1L
AIN1R
B
AIN1R
AIN2L
AIN2L
3134
AIN2R
AIN2R
220E
1710
1750
AOUT1L
1
1
AOUT1L
C
2
2
AOUT1R
AOUT1R
GNDAIO
3
3
AOUT2L
AOUT2L
3135
1909
AOUT2R
1
220E
AOUT2R
5130
2
D
AMLR
AMLR
for cinchout rear only
AMLP
AMLP
AF,FV
VFV
VFV
E
VMOD
VMOD
AF1
AF1
VFV
VFV
F
VBS
CROT
VBS
2FSC
CSCP
2FSC
VOUT
VOUT
G
VSB
VSB
CSYNC
CSYNC
MTA
VS_S,DE,HA
VREC
H
VREC
AIN1
VS_S,VPS/PDC
CSP
AMLR
CSP
VS_S
12SW
FMPV
for 2scart or stereo only
FMPV
HA
3528
AIN2
2519
I
25V
47k
100n
AF1
3027
2520
CROT
CROT
27k
100n
25V
FFP
FFP
MONO only
CTL1
GNDAL
J
CTL1
GNDAL
1SC
2SC
CTL2
CTL2
3028
5k6
3k3
8SC1
AMLP
8SC1
CSCP
CSCP
K
7V
FMRV
FMRV
HA
SCL
SCL
7V
GNDAL
7600
6,3V
-22V
SDA
BC856B
7V
SDA
3600
L
CKDET
CKDET
3V
-22V
0V
SDA2
0,7V
SDA2
3602
7601
BC846B
SCL2
4k7
SCL2
-17V
0V
ISWS
M
ISWS
3612
7602
MTA
BC846B
2k2
MTA
-22V
8SC2
0,7V
(LIN.Audio PB SWITCH)
8SC2
12SW
IREV
GNDAL
GNDAL
IREV
3625
N
10,4V
33E
10,5V
0,3V
7604
12V
BC328-40
0,5V
12VA
9,8V
GNDEO
0,3V
(Erase-Oscillator-SWITCH)
12V
12SW
12VA
7609
0V
0,1V
-28V
BC817-40
O
0V
12V
(Erase-Oscillator)
4,3V
7603
-28V
0V
BC847B
5VASW
5VASW
12SW
GNDEO
12SW
P
5VA
5VA
1
2
3
4
5
4 - 25
GV 27 ..., GV 47 ..., GV 7...
6
7
8
9
10
Playback
Luminance
Chrominance
Standard Sound
1911
CINCH
LEFT
2
9381C
1
1912
CINCH
RIGHT
2
9381B
6135
1
BZX79-C12
3V
5V
0V
2,1V
64
63
62
ACK
OUT
3023
KIL
1,8V
65
PQ1
DET
SERIAL
220k
not used
DECODER
0,6V
66
C-ROT
IN
5VASW
AGC
0V
67
CSCP_IN
AGC
68
PAL-PULSE
2,1V
69
NC-CTL
7007
AGC
0V
70
MUTE
LA71525M
CTL
0V
(VIDEO & LIN. Audioprocessor)
3,3V
71
1V
AGC
AGC
0V
72
9013
IN1
3,4V
73
2
ALC
IN3
2049
3,4V
74
VREF
47u
GNDAL
16V
GNDAL
3,4V
75
ALC
DET
7V
76
A-VCC
39
2652
3,4V
77
LINE
MUTE
AMP
10u
16V
3034
0V
78
15k
GNDAL
3,4V
REC
2647
79
GNDAL
GNDAL
100n
25V
2657
5601
3,4V
80
REC
A-GND
10m
AMP
15n
50V
22k
GNDAL
1
2
3
GNDAL
3,5V
0V
0V
3655
2656
50V
39n
680E
GNDAL
5604
GNDAL
3u3
HEAD
9034
3618
BIAS
3604
2059
9073
BIAS2
IC
1u
50V
3606
100k
22k
5605
47E
6
38
GNDEO
3638
36
10E
GNDAL
4
3
2
1
TD1
GNDEO
GNDEO
GNDEO
6
7
8
9
10
Platinenabbildungen und Schaltpläne / Layout of PCBs and Circuit Diagrams
11
12
13
14
15
16
5VASW
2048
2p7
18
1000
2029
4,433619MHz
10n
50V
1,5V
3,3V
3,9V
3V
3,9V
2,9V
3V
2,1V
5,1V
1,4V
2,7V
4,2V
61
60
59
58
57
56
55
54
53
52
51
50
49
BGP
RL
2FSC/
C-GND
PB-H
OUT
AMP
REC
VXO1
APC
DET
LPF
VCO
INV
SLD
COMB
PB
AFC
DET
APC
DET
TH
P
P
PB
BGA-A
R
PB
R,A
BGA-B
B
N.L.
DE-EM
P
DHP
BPF1
NC
R
PIC
CNC
SUB
P
R
CTL
CONV
REC
Y C
BPF2
BGA
MIX
SUB
BPF
ACC
DET
R
MAIN
ACC
AMP
CONV
P
MAIN
MOD
EMPH
P
R
P
VREF
FM
REC
AGC
P
SQ
C-LPF
EQ
R
PB-EQ
AMP
KIL
HD
BAL
PB-
LP,SP
SW
TC1
PM
4
5
6
7
8
9
10
11
12
13
14
15
16
7V
3,6V
3V
4,5V
3,4V
3,4V
0,2V
3,3V
3,3V
3,3V
3,3V
2,3V
1,6V
0V
3,4V
1,5V
2,6V
70
40
3609
8k2
3610
BIAS1
2k2
for stereo only
72
for 2/X 8k2
2603
10n
5VASW
50V
3607
390k
7001
5VASW
MMUN2112LT1
(SWITCH)
9154
GNDAL
GNDAL
GNDAL
GNDAL
for 4/2 only
3000
3001
1k
1k
7021
TD2
BC857B
for 2/X 22p
(SWITCH)
GNDAL
11
12
13
14
15
GRUNDIG Service
4 - 26
Reference
AL ....................4-25
FV....................4-21
IO.....................4-27
Oscillograms ....4-38
DC ...................4-35
FM ...................4-24
OS ...................4-24
AF....................4-29
DE ...................4-33
HA ...................4-30
PS....................4-31
16
17
18
19
20
21
5VASW
1,9V
0V
0,9V
2,4V
14
13
12
11
10
GND
NT
CLK
SAMPLE
PHASE
AND HOLD
COMP
OUTPUT AMP
CLOCK
15
WAVE
DL
SHAPER
CLOCK
DRIVER
DL
AUTO BIAS
DL
CIRCUIT 2
DL
CLOCK
CLOCK
7003
SWITCHING
LC89980M
CIRCUIT
(DELAY-Line)
AUTO BIAS
SYNC TIP
CENTER
CENTER
CIRCUIT 1
BIAS
BIAS
CLAMP
NC
VCC
1
2
3
4
5
2,5V
2,5V
2,2V
3010
1k
2028
2027
10n
2,6V
50V
10n
2V
50V
7008
BC857B
20
0V
2V
1,9V
0V
5VASW
5,14V
5000
48
47
46
45
44
43
42
41
10u
C-VCC
PQ2
NTSC
VCC2
BPF
19
P
40
3V
2021
YNR
CLP
R
10u
NPP
16V
39
3V
2020
LPF
10u
16V
KIL
B.D.
1,8V
VIDEO
38
AMP
P
R
14
37
0,5V
36
5,1V
Y-VCC
1/2
3,1V
35
VIDEO
AGC
2,3V
60
34
0,2V
33
QV/QH
0,4V
INS
1,8V
for 1Scart only
P
32
0,1V
2521
SYNC
R
SEPA
100n
25V
4,1V
2017
3
31
FBC
2
R
10u
1,8V
1
16V
2015
30
2,3V
P
100n
2V
P
25V
2014
29
2,5V
R
N.L.
DETAIL
EMPH
EMPH
0u47
AGC
2,2V
50V
DET
28
0V
100n
2022
75
25V
27
Y-GND
DOUBLE
REC
LIMIT
2012
26
3,1V
EQ
CLP
4u7
DEMOD
74
25V
R
25
1,8V
SUB
LPF
P
REC
HIGH
MAIN
OUT
PEAKING
EMPH
17
18
19
20
21
22
23
24
4,8V
0V
2,4V
2,4V
1,9V
71
1,6V
2,6V
2,7V
0,2V
0,3V
73
5VASW
7011
BC847B
5VASW
2036
3036
5036
56u
82p
470E
5%
50V
2007
3004
5004
7006
7004
BC847B
47u
BFS19
39p
5%
680E
(Buffer)
for mstd,mstds,
7000
secdk,secdks,secdkns;
(Buffer)
50V
BFS19
(Phase-Shift)
2026
5026
3003
100u
220p
5%
680E
50V
3011
2066
2k2
10n
50V
16
17
18
19
20
21
GV 27 ..., GV 47 ..., GV 7...
QMB ................4-15
VS....................4-25
QNIC ...............4-36
VS-S ................4-28
VP....................4-24
22
23
24
25
9.5V
9
8
1/3
VCO
TIMING
GENERATOR
RD
VOLT
GEN
SAMPLE
AND HOLD
OUTPUT AMP
6
7
1,5V
1,5V
7005
BC857B
(Buffer)
2,1V
76
VSB
VBS
CSYNC
VREC
FFP
VFV
7002
BC847B
(Deemphasis)
7009
MMUN2112LT1
AINFR
AINFL
VFR
12VA
GNDVSIO
GNDAIO
for Cinch-IN front only
22
23
24
25
GRUNDIG Service
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