Grundig GV400 Servicehandbuch Seite 49

www.freeservicemanuals.info
Platinenabbildungen und Schaltpläne / Layout of PCBs and Circuit Diagrams
Chassisplatte – Standardton / Family Board – Standard Sound (AL)
1 2
to DE
CTL1 CTL2
A
B
C
D
F7
35
MEH2
3
MEH
MEH1
2
E
1
162
to Deck L8
36
F
F8
1
CTL1
CTL
2
CTL2
3
AEH1
AEH
4
G AEH2
5
APH
38
6
R/P
7
ARH
161
H
to Deck L3
I
J
K
1 2
4 - 14
3 4 5 6
0V
10.4V
7604
BC328-40
12V
0.1V
9.8V
10.4V
7603
2621
0.1V
1n
0.6V
0V
BC337-40 0.1V
12V
0.3V
7605
BC848B
3618 3617
2618
100k 22k
330p
BIAS
6
4
3
2
1
37 ERASE & BIAS OSCILLATOR
3600
47E
..V MEASURED IN PLAYBACK MODE
..V MEASURED IN RECORD MODE
..O OSCILLOGRAMS
3 4 5 6
Platinenabbildungen und Schaltpläne / Layout of PCBs and Circuit Diagrams
7 8 9 10
to VSIO to DE
+12A
REV
12V
10.5V
3626
MTA LP
IPALAL
47E
7607
BC328-40
12V
3627
9.8V
3k3
3625
12V
33E
10.5V
3624
3k3
2617
47u
0V
5.3V
3622
7606 0.6V
47k
BC848B
0V 0V
0.7V
0V
0.1V
0V
24 23 22 21 20
4.8V
REC/EE EE/PB MUTE EP LP
7602 CTL CTL CTL CTL CTL
BC848B
0V
7601
LA7282
EE/PB EP EP
REC
1 2 3 4 5
0.1V
only for
Longplay
2603
1n
7 8 9 10
GRUNDIG Service-Technik 4 - 14
11 12 13 14
AMLP
31
+12A
only for
Longplay
34
33
4.3V 1.4V
12V 9.1V
3.8V
4.2V 1.5V
16 15 14 13 3.7V
19 18 17
EP REC
POWER
POWER
LP EE
RIPPLE
MUTE MUTE
FILTER
AMP MUTE
BUF
AMP MUTE
ALC
ALC
DET
PB REC
EQ
EE
6 7 8 9 10 11 12
0.5V 3.6V 3.8V 3.8V
0.5V
3603
2604
12k
10n
3604
390k
11 12 13 14
It`s Free
15 16
161 H 2
162 E 2
2600 H 6
to VSIO
2601 G10
2602 G10
2603 G10
A
2604 G11
AMLR
2605 H11
2606 G12
2607 G13
2608 H12
2609 H12
2610 G13
2611 D13
2612 C12
32 2613 B12
2614 D11
2615 C11
B
2616 C11
2617 B 8
2618 C 4
2619 B 5
2620 C 4
2621 B 3
2622 E 3
2623 A 7
3600 G 5
3601 H 6
C
3602 F10
3603 G11
3604 H11
3605 H11
3606 H11
3607 H13
3608 D 8
3609 D 8
3610 G14
D 3611 G14
3612 C13
3613 C13
3614 B13
3615 D12
3616 C12
3617 C 6
3618 C 5
3619 C 4
3620 B 4
3621 C 8
E
3622 C 7
3623 C 7
3624 B 8
3625 B 8
3626 A 8
3627 A 8
3628 C 7
5601 D12
5602 G 3
5603 E 4
F
7601 E10
7602 E 7
7603 B 4
7604 B 6
7605 C 7
7606 C 8
7607 A 7
G
3611
33k
H
I
J
Audio linear 9314
K
A.N. 9318
15 16
GRUNDIG Service-Technik