Grundig M 100-CF Serviceanleitung Seite 23

M 100-CF
IC Blockdiagramme
IC Block Diagrams
IC 101 µPC 1330 HA (REC/PB AUDIO HEAD SWITCH)
IC 102 CXA 1330 S (DOLBY B/C)
30 29
CXA 1330 S
1 2
IC 103 CXA 1198 AP (STEREO CASS. DECK RECORDING EQUALIZER)
IC 111 µPC 1297 CA (DOLBY HX-PRO)
V V V PH C C
CC R2 IN(R)2 2 IN2 OUT2
18 17 16 15 14 13
ABSO PEAK
COMP
DET DET
VOLTAGE THERMAL
µPC 1297 CA
PROTECTION
REGULATOR
ABSO PEAK
COMP
DET DET
1 2 3 4 5 6
V V V PH C C
ST R1 IN(R)1 1 IN1 OUT1
GRUNDIG Service
*
1 2 3 4
SW R1 GND SW P1 CONT
28 27 26 25 24 24
ATT
MOR
Mode
Control
MOR
ATT
3 4 5 6 7
G L G H I REF
G P
16 15 14 13
C O N T R O L
*
1 2 3 4
f / Q f Q f M REF
GND
V V V
NO. CONNECTION
OUT21 OUT22 IN(0)
12 11 10 1 VOLTAGE REGULATOR
2 COMP REF
3 SIGNAL INPUT
4 PEAK HOLD
VCA
5 COMP INPUT
6 COMP OUTPUT
7 VCA OUTPUT
8 VCA OUTPUT
PRE
9 GND
DRIVER
10 BIAS OSC INPUT
11 VCA OUTPUT
12 VCA OUTPUT
VCA
13 COMP OUTPUT
14 COMP INPUT
15 PEAK HOLD
16 SIGNAL INPUT
7 8 9
17 COMP REF
18
VCC
V V GND
OUT11 OUT12
Schaltpläne und Platinenabbildungen / Circuit Diagrams and Layout of PCBs
Inverter
µPC 1330 HA
Comparator
5 6 7 8 9
GND VCC SW P2 GND SW R2
23 22 21 20
HLS HDET LDET
HLS HDET LDET
8 9 10 11
VCC
IN (R) GND (R) OUT (R)
12 11 10 9
SIDE CHAIN
CXA 1198 AP
SIDE CHAIN
5 6 7 8
VEE IN (L) GND (L) OUT (L)
IC 403 X 24 COOP (EPROM)
CONTROL
S CL
LOGIC
1
1
1
1
1 INPUT/
S DA OUTPUT
11
BUFFER
12
21
22
2
2
X 24 COO
2
2
1
19 18 17 16
LLS
LLS
GND
IREF
12 13 14 15
NC 1
COMMAND/ADRESS
REGISTER
NC 2
X 24 COO
NC 3
Vss 4
SHIFT REGISTER
NC = NO CONNECT
Vss = GROUND
Vcc = SUPPLY VOLTAGE
SDA = SERIAL DATA
MEMORY ARRAY
SCL = SERIAL CLOCK
8 Vcc
7 NC
6 S CL
5 S DA
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