Grundig GDM5051 Serviceanleitung Seite 27

CDM 900
IC Innenschaltpläne / IC Block Diagrams
IC1
TC9284BF
64 63 62 61 60 59 58
TESTX
DATA SLICLER
PLL CIRCUIT
HS
GNDD
TMAX DETECTION CIRCUIT
SPDA INTERNAL
CLV SERVO CIRCUIT
STATUS
SYNC
COFS
SEPARATION
CIRCUIT
WDCK
EF M
CORRECTION
DEMODULATION
CHCK
OUTPUT
CIRCUIT
CIRCUIT
BCK
AUDIO OUTPUT
AOUT
CORRECTION
EMPH
CIRCUIT
DOUT
DIGITAL OUT
TEST2
V
DDX
XI
XO
GNDX
1 2 3 4 5 6 7
IC201
BA3308
IC2
TA2065F
GRUNDIG Service
57 56 55 54 53 52 50 49 46 45 44
51 48 47
AC CONVERTER
ADDRESS
CIRCUIT
SERVO STATUS
SIGNAL
GENERATING
CIRCUIT
15 18 20 21
8 9 10 11 12 13 14 16 17 19
-
ch1
+
3 4
1 2
NF1 INPUT 1 OUTPUT 1 GND
Platinenabbildungen und Schaltpläne / Layout of PCBs and Circuit Diagrams
IC3
TA2092N
43 42 41 41
PW GND
DMPC OUT(-)1
DMFC
PV CC1
DMON
FOCUS/
OUT(+)1
TRACKING
TEST
SERVO
FMFB
V
IN1
TEST
V RI
FMON
TRACKING
TKIC
SEARCH
V
CONTROL
TGUH1
CIRCUITR
TGUH2
V
IN2
TGUL
OUT(+)2
TEL1
PV CC2
TEL2
DFCT
OUT(-)2
GNDD
V
DDD
PW GND
22 23 24
MUTE
-
ch2
+
Cont
8
6 7
5
ALC OUTPUT 2 INPUT 2
Vcc
1
-
2 -
3
4 + +
5
6
7
CI
8
9 + +
10
- -
11
12
9
NF 2
24 PW GND
23
OUT(-)4
22
PV CC4
21 OUT(+)4
V IN4
20
SV CC1
19
18 SGND
17
V IN3
16 OUT(+)3
PV CC3
15
14
OUT(-)3
13
PW GND
COSC
3 - 13