Ic Block Diagrams - Grundig Rcr 1750 Serviceanleitung

IC Block Diagramme
IC301 LA 1810 SSK (AM/FM
3
LA 1610 SSK
2 RF - AMP. MIX
23 REG.
2
ICIOI LA 1186N (FM FRONTEND)
LA 1186 N
V rof
MIX
o o
IC902 LA 4558 (POWERAMP.)
PRE INPUT PONER
GND
8 9
7
INPUT
AMP 1
SMALL
RIPPLE
FILTER
INPUT
AMP 2
4
5
6
POWER
DC INPUT
2
2
I-CHIP RADIO)
2 20
5 1
DET.
LEVEL- DET.
GND
4 12
6
BUFFER
o o
o o o
GND IF OUT
OUTPUT Voc
GND
10 11 12
a-JTPUT
AMP 1
a.)TPUT
AMP 2
3 2 1
OUTPUT DC
AMP BS
2 2
GND 2

IC Block Diagrams

13
11
1 16
POST
AMP.
pHASE
MUTING
TUNING
INDIC.
DRIVE
8 18
19
M51166P (PRE-AMP.)
901
A-NF 1
2
A-IN-t
A-NF-2 3
A-IN-2
4
A-GND 5
B. IN-2 6
7
B-lN-1 8
B -NF-I 9
12
7
15
14
PILOT STEREO
TRIG.
t.OlC. DRIVE
STEREO
SWITCH
9 10
"51 tee p
1
OET
1
21
A • ALCCONTROL
RIPSW
A-OUT-I
A-OUT-2
B-GNO
RIPPLE
B-WT-2
B-OUT-I
RIPSW