K-RCD 110
Schaltpläne und Platinenabbildungen / Circuit Diagrams and Layout of PCBs
GRUNDIG Service
3 - 11
SLICE LEVEL
CONTROL
VCO
CLOCK OSCILLATOR
CLOCK CONTROL
2K x 8 bit
RAM
RAM ADDRESS
GENERATOR
COMPLEMENT
MUTE
C1, C2 ERROR DETECT
&
CORRECTION FLAG
PROCESSING
SYNCHRON DETECT
EFM DEMODULATION
CLV
DIGITAL SERVO
SUBCODE ISOLATION
0 CRC
µ
COM
INTERFACE
SERVO
COMANDER
XTAL
TIMING
GENERATOR
DIGITAL FILTER
DAC OUTPUT
INTERFACE
DIGITAL
OUT
24
5
61
1
18
2
9
23
28
7
6
4
3
19
8
56
10
12
11
48
46
51
53
54
27
62
59
58
57
29
34
60
39
64
63
49
45
33
35
36
37
30
43
41
38
42
40
EFM0
EFM0
PD0
A1
A0
PCK
VSS
VDD
TEST
5
TEST
4
TEST
3
TEST
2
TEST
1
CONT
SMP
1
SMP
2
SMP
LRCLK
DACLK
DF OUT
CS
EFLG
FSK
X IN
X OUT
CKL
22 21
THLD, TGL
EMPH
LASER
16,9 MHz
4,23 MHz
14 13
FSD, FOCS
FZD
HFL
TES
T
OFF
20
17
16
15
32
31
DEMO
M/L
CQCK
COIN
RWC
WRQ 50
SQOUT 52
SBSY
SFSY
PW
SBCK
V/P
CLV-
CLV+
FSEQ
EFMIN
C2F
LRSY
C2FCLK
DOUT
ROMOUT
DFIN
DFOFF
LC 7861
1
3
18
20
11
13
14
12
6
7
+ -
+ -
LC 78815 M
TIMING
CONTROL
AND
TEST
LEVEL SHIFT
DAC
R-STRING
DAC
LEVEL SHIFT
DAC
R-STRING
DAC
5
8
9
CH1
OUT
V REF
H
V REF
L
CH2
OUT
TST OUT
DATA R
DATA L
LRCK
BCLK
SYSCLK
FSEL
MODE2
MODE1
CH1 LATCH
CH2 LATCH
SIPO
REGISTER
PWM
DAC
PWM
DAC
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Amp 1
Amp 2
Amp 3
Amp 4
+
-
+
-
+
-
+
-
+
-
Buffer
Amp
VCC
MUTE
OUT1
GND
GND
OUT2
VIN1-
VIN1+
VBIN
VBOUT
OUT4
GND
GND
OUT3
VIN2-
VIN2+
LA 6531
1
2
3
4
5
6
7
8
9
-
+
-
+
V+
A-OUT
A-IN
A+IN
V-
B+IN
B-IN
B-OUT
V+
LA 6458 S
IC 302 LC 7861
IC 304 LC 78815 M
IC 305 LA 6458 S
IC 307/308 LA 6531