In/Out (Io) - Grundig GV 27 Servicehandbuch

GV 27 ..., GV 47 ..., GV 7...
Reference
Oscillograms ....4-38
AF....................4-29
61
GRUNDIG Service
Platinenabbildungen und Schaltpläne / Layout of PCBs and Circuit Diagrams
AL ....................4-25 FV....................4-21 IO.....................4-27 QMB ................4-15 VS....................4-25
DC ...................4-35 FM ...................4-24 OS ...................4-24 QNIC ...............4-36 VS-S ................4-28
DE ...................4-33 HA ...................4-30 PS....................4-31 VP....................4-24
GV 27 ..., GV 47 ..., GV 7...
Blockschaltplan (Standardton) / Block Circuit Diagram (Standard Sound)
Front end (FV)
12SW 5VASW
33V 5VA
7720
2 6 A 12
26
1720
17 1
1701
2
TUMOD
31
3
14 13 15,16
SDA SCL
(DC) (DC)

In/Out (IO)

1917
7510
6
AIN1
2
3
1
1918
7512
6
AIN2
2
3
1
39
12SW SCL2(DE) SDA2(DE)
71 73 75 76
A-VCC
ALC Line
REC
PB
77
Rec-Amp
Linear-Aud. Proc.
79
EQ-Amp
REC
A-GND
2 11 10
3610
Linear-Audio (AL)
4 - 9 GRUNDIG Service
Platinenabbildungen und Schaltpläne / Layout of PCBs and Circuit Diagrams
5VASWB
20
27
5,5MHz(BG)
6.0MHz(I)
7725
6,5MHz(DK)
18 11 9 AF1
1745
TDA 9800T Demod.
24
Display Control (DC)
5VA
SCL SDA
7507
3
(FV) (FV)
Video
9 SDA
7201
Input Sel.
11 SCL 75
STV6400
Display
7 5 Controller
23
5VA
7513
9 10 16
AMLP 5 Deck Electronics (DE)
4
AIN2 3
IREV MTA SCL2
2
AF1 5DV2 (AL) (AL) (AL)
15
AIN1 1
56
HEF4053
7400
58 33 29
8 7
Deck
-7V
Controller
26,43,57
MTA(DE) 12SW IREV(DE)
7007
63 64 70
MUTE
7604
Serial-Bus
Control
7609
Erase
1961/5 TD1/3
Mute
Osc.
Audio Erase
-
Head
mute
1961/4 TD1/4
BIAS
1962/1 TD2/2
3618
38
LA71525M Main Erase
Head
1962/2 TD2/1
1
1961/1 TD1/7
PB
REC/PB
7
Head
5 1961/3 1961/3 TD1/5
PB
HD 6
REC 7600
SW
7601
7602
40
Tape Deck
5DV1
33
15
SDA2
(AL)
59 60
4 - 10