VCR-SAT 1
Platinenabbildungen und Schaltpläne / Layout of PCBs and Circuit Diagrams
GRUNDIG Service
2 - 1
Platinenabbildungen und Schaltpläne / Layout of PCBs and Circuit Diagrams
Blockschaltplan – Netzteil / Block Circuit Diagram – Power Supply
+5V/D
Control
ca. +340V
L1700
SI1736
D1735
IC1725
TOP224P
D1712
5 (D)
1...3; 6...8
+13,5V/D
D1736
SI1734
+14 / 18V
&
+
–
U 14V/18V
U / LNC OFF
+12V
U / 22kHz
MF1002
LNC
POWER
+33V
STV
0056F
22kHz MODULATOR
4MHz
CS OSD
SAT TUNER
+12V/V
+12V/A
5V OSD
CIC
1710
RESET
CIC
1100
CIC
1420
IC
1402
22kHz
EEPROM
VCR
DECODER
DECK CONTROLLER CIC1400
+33V
+5V
+13,5V/D
U 14V / 18V
U / LNC OFF
U / STAND BY
REMOTE
SAT LINK
U / AV OUT
U / AV IN 1
+5V/D
IC1731
CT1746
CT1749
CD1731
CD1740
CT1745
CT1744
CT1743
1/
2 CT 1733
CT1736
CT1105
9
13
14
15
1
SCL
SDA
34
CIC
1330
SO 30
(OSD)
EXO SYNC
33
32
5
29
9
10
8
17
CR1331!
CR1000
CR1021!
32
25
5
6
1
2
8
28
31
26
12 / 15
13
19
21
16
17
27
29
27
SCL
SDA
26
31
44
10
CR1045!
CR1062!
CT1241/42
OK1736
C1717
D1722
D1723
1/2
CD1726
D1762
4 (C)
7
8
CD1733
CD1732
L = aktiv
L = 14V
L = On
L = On
POWER 1
CT1737
1/
2 CT 1733
POWER 2
5/6
4
3
7/8
2
1
1
4
1
4
2 / 3
1
2
1
2
3
3
4
5
4
5
SI1701
CIRCUIT NOT MAINS-ISOLATED
230V AC
L1718
L1768
L1727
L1728
+5V/T
LM2674N
2 / 3
5
4
P
P
P
P
8
8
CR1717!
INPUT SAT
Platinenabbildungen und Schaltpläne / Layout of PCBs and Circuit Diagrams
Blockschaltplan – Netzteil / Block Circuit Diagram – Power Supply
