GRUNDIG Service
GRUNDIG Service
Platinenabbildungen und Schaltpläne / Layout of PCBs and Circuit Diagrams
Platinenabbildungen und Schaltpläne / Layout of PCBs and Circuit Diagrams
KM 12
KM 12
3 - 19
3 - 20
73 74
66 65
XT
AI
XT
A
O
ZER
OL
ZER
OR
69 NLPWM
70 LPWM
78 RPWM
77 NRPWM
61 DOUT
55 XROF
27 LOCK
26 MDS
25 MDP
24 MON
5 SQCK
4 SQSO
3 EXCK
2 SBSO
1 SCOR
22 XLON
19 SPOB~D
11 CLOK
10 XLAT
9 DATA
7 SENS
17 CLKO
16 XLTO
15 DATO
63
EMPHI
FSTT
59
C4M
60
RF
36
ASYI
38
ASY
O
39
ASYE
40
BIAS
37
XPCK
50
FILO
29
FILI
30
PCO
31
CL
TV
34
FOK
23
SEIN
13
CNIN
14
43
LRCK1
45
PGMDI
47
BCK1
6
MUTE
46
BCK
44
BCMD
42
LRCK
41
WDCK
54
C2PO
52
RFCK
58
MNT0
57
MNT1
56
MNT3
64
WFCK
62
EMPH
51
GFS
49
XUGF
48
GTOP
Digital Filter
+
1bit DAC
D/A
Interface
error
corrector
digital
OUT
digital
CLV
16K RAM
digital
PLL
Servo auto
sequencer
asymmetry
corrector
clock
generator
EFM
demodulator
SUB code
Processor
CPU
Interface
IC-Block-Diagramme / IC Block Diagrams
IC01 CXA1782BG
IC02 TC9173P
LATCH
LATCH
DRIVER
SERIAL I/O
CONTROL CIRCUIT
C
Y
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
I/O-9
(OP-9)
I/O-8
(OP-8)
I/O-7
(OP-7)
I/O-6
(OP-6)
I/O-5
(OP-5)
I/O-4
(OP-4)
I/O-3
(OP-3)
I/O-2
(OP-2)
I/O-10
(OP-10)
I/O-1
(OP-1)
GND
V
DD
STB
CK
SO
SI
Note: The name in ( ) is the terminal name for TC9174P/F.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
19
17
16
15
18
20
21
22
23
24
25
26
27
28
LEVEL
SHIFT
LEVEL
SHIFT
LEVEL
SHIFT
LEVEL
SHIFT
20K
20K
20K
20K
20K
20K
20K
20K
+
–
+
–
+
–
+
–
+
–
+
–
+
–
+
–
19.9K
19.9K
10K
10K
10K
10K
19.9K
19.9K
Vcc
Vcc
MUTE
Vcc
µ
C
+
–
+
–
+
–
–
+
–
+
–
IC03 BA5941FP
IC04 CXA2508Q
IC102 LA1831
IC101 LA1186N
RF-IN
GND
IF OUT
Vcc
RF-OUT
OSC
OSC
RF
MIX
REG
OSC
BUFFER
V
ref
1 2 3 4 5 6 7 8 9
LA
1
186
GND
REFERENCE
DIVIDER
PHASE DETECTOR
CHARGE PUMP
SWALLOW COUNTER
1/16, 1/17 4BIT
12 BIT PROGRAMMABLE
DIVIDER
SHIFT REGISTER
LATCH
UNIVERSAL
COUNTER
1
2
22
16
15
20
23
5
4
3
2
18
19
24
1
LC7218
12
11
10
9
13
14
17
7
8
21
6
PD2
HCTR
LCTR
V
DD
Vss
PD1
DO
CL
DI
CE
AMIN
FMIN
XOUT
XIN
OUT3
OUT2
OUT1
OUT0
OUT4 OUT5 OUT6
IN0
IN1
SYC
IC103 LC7218