Grundig GV 6400 HiFi Service Anleitung Seite 55

GV 6400 ..., GV 6401 NIC
REC PB
AC, 200mV/Div, 20µs/Div DC, 1V/Div, 20µs/Div
C2021 IC7051-(14)
14
10
PB PB
AC, 50mV/Div, 20µs/Div AC, 200mV/Div, 20µs/Div
IC7110-(23) IC7110-(18)
63 64
PB
AC, 50mV/Div, 20µs/Div
T7106 Emitter
67
GRUNDIG Service
Platinenabbildungen und Schaltpläne / Layout of PCBs and Circuit Diagrams
REC REC
0V
0V
DC, 500mV/Div, 20µs/Div AC, 50mV/Div, 50µs/Div
C2114 IC7110-(29)
60 62
PB REC
AC, 200mV/Div, 20µs/Div AC, 200mV/Div, 20µs/Div
IC7110-(1) IC7110-(17)
65 66
GV 6400 ..., GV 6401 NIC
Chassisplatte – Kopfverstärker / Family Board – Head Amplifier (HA)
Reference DE ............4-21 HA ............4-34 PAF ..........4-35 PDCG1.....4-44
AF ............4-39 FOME.......4-24 IO .............4-27 PBA22......4-41 PKG11 .....4-45
AL.............4-28 FV ............4-25 OS............4-24 PDCA1 .....4-41 PKG12 .....4-46
5 6 7 8
3163
150k
7161
A 1
DTC124EK
1
16 15
CAGC REC TRIV
2 REC IN
B
STV5742DT
20 19
7152
TO ROTATING TRANSFORMER
CAGC REC
REC IN
2
1915
560E
C
VH1 SH1
1 330E
9
STV5744DT
VHC SHC
8
7150 1
VH2 SH2
7
VCC
VH1'C LH2
6
D
REC
VH1' LHC
5
SP SP
LH1 I_OUT V1
4
1 2
AH2
3
AHC
2
E
AH1
I_OUT V1
1
1 2
GNDVS
F
1
3157
0E
G
H
0 NOT USED
5VA
1
ONLY FOR 4/2
2
ONLY FOR 2/2
I
HEAD SWITCHING TABLE
SWIN HEAD VARIANT
MIN MAX
2.5V 5V VH1
2/X
J
0V 1.5V VH2
4.3V 5V LH2
2.8V 3.8V LH1
1.3V 2.3V SH1 4/X
0V 0.8V SH2
K
5 6 7 8
4 - 33 GRUNDIG Service
Platinenabbildungen und Schaltpläne / Layout of PCBs and Circuit Diagrams
PMB .........4-17 SE ............4-32
PSM .........4-14 VS ............4-29
SD ............4-37
9 10 11 12 13 14
2152
220n
25V
14 13 12 11 10 9
CSYN GND2 YCPB VCC SWIN
SWR
18 17 16 15 14 13 12 11
YCPB
TRIV CSYN GND2 VCC SWIN ENVC I_OUT
REC 10n
SWR LP
H=AGC REC
=SP/LP TRIG
REC=H
I_OUT
LP
SP/LP H1/H2
7162
5VA
DTA124EK
VCC
1
SP LP SP SP LP LP
LP
V2 H2 H2
GND1 H1 H1 V2 V1
3 4 5 6 7 8 9 10
5VA
1
V2 C1 H2 GND1 H1 C2
3 4 5 6 7 8
1
7160
BFS19
1
1 2 2 1 1
1 5E6 1 560E
2 8E2 2 680E
2173
3172 3171
22p
50V
11 10 9
16 15 14 13 12 3167
1k
V1 IOUT GND2 PROT VMES VIN SW- SW-H
REC
PROT 3168
REC=H
4k7
SW LOGIC
3169
AH1=H
4k7
3170
STV5712/TR 100E
7151
VCC V2 C2 H2 GND1 H1 C1 FMOUT
1 2 3 4 5 6 7 8
Record (Luminance / Chrominance)
Playback (Luminance / Chrominance)
Record (Audio)
Playback (Audio)
9 10 11 12 13 14
15
1915 C 5
2150 D 7
2151 A 8
1 27k
A 2152 A10
2153 F 9
2 18k
2154 E10
2155 F10
2156 E10
2157 F10
2158 F11
TRIV
to DE 2159 F12
2160 A14
2161 D15
2162 B14
B 2163 B14
2164 E13
2165 F14
3159
2162
2166 K 8
FMRV
2k2
from VS 2168 K 8
50V
2169 J10
2170 J10
3158
2171 J11
CSYNC
39k
2172 J11
from VS
2173 H11
C 2174 I 7
FMPV
3150 D 7
from/to VS/SE
3151 E13
3152 D14
SWIN
3157 F 8
3158 C15
3159 B15
3160 F12
5VA
3161 A15
3162 A14
D 3163 A 7
5VA
3167 H13
from VS
3168 H13
3169 H13
3170 I13
3171 H11
GNDVS
3172 H10
from VS
3173 H 7
5150 D13
5151 I 8
E 7150 D 8
ISWS
7151 I 9
from DE
7152 B 6
7160 F14
7161 A 7
LP>SP=L
7162 D14
ENVC
9069 D15
to DE
9070 B15
9071 D15
F
G
GNDVS
FMAR
H
from IO
RAF
from IO
HP2
from DE
FMAP
to IO
I
J
K
HA(40250)
15
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