Grundig GV 6400 HiFi Service Anleitung Seite 51

GV 6400 ..., GV 6401 NIC
Chassisplatte / Family Board – IN/OUT (IO)
2 3 4 5
To PAF-Connector 1916 To PAF-Connector 1912
AUDIO
A B
B
+12A
GNDAL
1917
5ASW
5VA
SCART 1 GNDA
21 TRIA
C
20
VideoIn
pin10
10
VOUT1
19
VideoOut
18
VFV
-7V
14
2592 VIN1
17
D
-7V -7V
100n 25V
red
15
red/c
13
green
11
green
9
blue
7
E blue
blanking
16
blanking
8SC1
8
Swtching
AIN1L
6
AudInL
5
4
F
-7V AOUT1L
3
AudOutL
-7V AIN1R
2
G AudInR
-7V AOUT1R
1
AudOutR
not used
H
-7V
VSB VSB
from VS
VIDOUT VIDOUT
from OS
13
I
8SC1
8SC1
SDA
SDA
SCL
SCL
HP2
HP2
J FMAR
FMAR
RAF
RAF
FMAP
FMAP
SSIF
SSIF
ALR
ALR
K
A2R
A2R
VFV
VFV
2 3 4 5
AC, 200mV/Div, 20µs/Div
T7725 - Emitter
28
GRUNDIG Service
Platinenabbildungen und Schaltpläne / Layout of PCBs and Circuit Diagrams
Reference DE ............4-21 HA ............4-34 PAF ..........4-35 PDCG1.....4-44 PMB .........4-17
AF ............4-39 FOME.......4-24 IO .............4-27 PBA22......4-41 PKG11 .....4-45 PSM .........4-14
AL.............4-28 FV ............4-25 OS............4-24 PDCA1 .....4-41 PKG12 .....4-46 SD ............4-37
6 7 8 9 10
To PAF-Connector 1911 To PAF-Connector 1913
2.SCART HEAD-AMPLIFIER
C D
GNDA -7V
GNDA GNDVS
GNDA
2513
100n
25V
2514 1.5V
4
100n 25V
2515 1.5V
6
100n
25V
2516
1.1V
8
-7V 100n 25V
2517 2V
10
100n
25V
2518 1.1V
12
100n
25V
5
7
13
5VA
3513
4k7
-28V
Pos 7540:
SDA5642 for VPS only; SDA5648 for PDC; SDA5649 forPDC + time download
2544
VCS
5
5ASW 5VA
3549 4,1V
9 PD1
3546
100E
3k3 1,3V DATA-
10 INUL
SYNC-
0V
11 VCO
SLICER
CLOCK-PLL
5,1V
12 IREF
DATA-
1,2V
13 FBAS
AQUISITION
PDC-Option
TIMING
5,2V
14 UDD
DAVN EHB
6 7 8
VPS/PDC
+12SW +12A 5ASW 5VA -28V
..
OSCILLOGRAMS
...V MEASURED IN PLAYBACK MODE
...V MEASURED IN RECORD MODE
+12SW +12A 5ASW 5VA -28V
from FV from DE
6 7 8 9 10
REC
REC
AC, 500mV/Div, 200µs/Div AC, 500mV/Div, 200µs/Div
C2611
R3611 / IC7551 - (3)
31
32
GV 6400 ..., GV 6401 NIC
SE ............4-32
VS ............4-29
11 12 13 14
1592 B 3
To PAF-Connector 1970
1917 C 1
2512 D12
E FRONTEND
2513 C10
2514 D10
2515 D10
2516 D10
B 2517 E10
2518 E10
2519 D12
2540 J 8
GNDA
GNDVS 2541 J 8
+12SW
2542 J 7
2543 I 6
2544 H 6
2545 G 7
2570 F 3
5VA
C 2571 G 3
2572 G 3
AMCO
4.9V
AMCO 2575 H 3
5510
to FV 2590 E 6
6u8
2591 E 6
VIN1
2592 D 2
VIN1
19
3 17 18 20
to FOME 3513 F10
3515 E12
3516 E12
2
0.5V VREC
VREC 3517 F11
x1
D
to VS/SE 3518 F10
3540 H13
3541 I13
8SC2
3542 I 8
8SC2
3543 J 8
TRIA
3515
16 1.4V VOUT1 3544 J 7
TRIA
x2
10k 75E 3545 J 6
ARLI
3546 H 6
ARLI
3547 G 6
ALLI
3548 H 7
ALLI
E 3549 H 7
3550 G 8
1.2V VOUT2 3551 G 8
15
x2
75E 3552 G 6
APH
APH 3553 G 7
3516
IIC
3570 D 3
ARH 3572 F 3
BUS ARH
1 3573 F 4
STV6400
3580 G 3
7552
9 11 14 3590 F 7
F 3591 E 7
5510 C11
6570 D 3
6572 D 3
6573 F 2
SCL
6574 F 3
6575 G 3
6576 G 3
SDA
6577 H 3
6590 E 6
G
7540 H11
7552 F11
9604 B 4
9608 B 5
9610 B 4
7540
SDA5642-5
H
CSO
4
5,3V
I2C-BUS SDA
3
INTERFACE
5,3V
SCL 2
I
USS
1
TI
J
K
I/O(40250)
11 12 13 14
REC REC
0V
DC, 1V/Div, 10ms/Div
Connector 1961-(7)
36
4 - 27 GRUNDIG Service
Platinenabbildungen und Schaltpläne / Layout of PCBs and Circuit Diagrams
Chassisplatte – Löschoszillator / Standardton (AL)
Family Board – Erase Oscillator / Standard Sound (AL)
2 3 4 5
+12A +12A +12A
A
10,5V
0.3V
12.7V
0V
0.2V
3638
10,6V
10E
7604
B
BC328-40
7609
10V
BC817-40
12V
+5D
C 0V
12V
2,5V
7606
BC848B
0V
3V
D
IEO
from DE
E
CTL1
to DE
CTL2
to DE
3600
F
APH
47E
to IO
ARH
from I/O
38
G
+12A
+12A
from DE
H
.. OSCILLOGRAMS
GNDAL
I
..V MEASURED IN PLAYBACK MODE
..V MEASURED IN RECORD MODE
2 3 4 5
PB REC
0V
DC, 500mV/Div, 20µs/Div AC, 200mV/Div, 200ns/Div
IC7051-(16), T7821 - Emitter Tuner 1701-(17)
13 26
REC REC
0V
AC, 10V/Div, 5µs/Div AC, 10V/Div, 5µs/Div
C2621, Connector 1961-(5) Connector 1961-(1)
37 38
6 7
1961 E 6
1962 H 6
2617 A 2
2618 D 5
2619 A 4
A
2620 B 5
2621 B 5
2622 C 7
3600 F 3
3618 D 5
3619 C 4
6
3620 A 5
3621 C 2
2621
3623 C 3
37
3624 A 2
1n
B
3625 A 3
50V
3626 D 2
3638 B 5
4 5602 F 5
5603 C 6
3 7604 B 3
7606 C 3
7609 B 5
2 9603 F 4
9611 D 5
C
1
GNDAL GNDAL GNDAL
D
36
1961
E
CTL1
7
CTL2
6
AEH1
5
AEH2
4
F
APH
3
2
ARH
1
GNDAL
G
H
1962
MEH2
3
MEH1
2
1
I
AL(40250)
6 7
REC
AC, 0,5V/Div, 500µs/Div
C2751
27
REC
AC, 200mV/Div, 20µs/Div
T7500 Basis
80
4 - 28