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Grundig CCF 23 - Page 19

Grundig CCF 23
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CCF 23 Schaltpläne und Druckplattenabbildungen / Circuit Diagrams and Layout of PCBs CCF 23 Schaltpläne und Druckplattenabbildungen / Circuit Diagrams and Layout of PCBs
GRUNDIG Service 3 - 5 GRUNDIG Service 3 - 6
0V
0V
0V
4.5V
5V
4.3V
0V
12V
0V
0.7V
0.7V
0V
PAGE 3-11
-25V
19V
-24V
5V
5V
-34V
9.2V
8.5V
12V
11.4V
00V
0.7V
12V
0V
5.7V
5V
9.2V
12V
0V
9.2V
9.2V
8.5V
MAGNET
SOLENOID
MAGNET
SOLENOID
DECK A
CRF 477
DECK B
CRF 478
PAGE 3-11
LAUFWERKSCHALTER
DRIVE MECH. SWITCHES
REC-F = AUFNAHMESPERRE NORMALLAUF
RECORD LOCK FWD
REC-R = AUFNAHMESPERRE REVERSLAUF
RECORD LOCK REV
HALF = CASSETTENERKENNUNG
CASSETTE "LOADED" IDENT.
MODE = KOPFSCHLITTENSCHALTER
HEAD CARRIER SWITCH
CRO2 = BANDSORTENERKENNUNG
TAPE SELECT
CONTROL
LOGIC
INPUT/
OUTPUT
BUFFER
COMMAND/ADRESS
REGISTER
SHIFT REGISTER
MEMORY ARRAY
S CL
S DA
X 24 COO
1
2
3
4
8
7
6
5
NC
NC
NC
Vss
Vcc
NC
S CL
S DA
X 24 COO
NC = NO CONNECT
Vss = GROUND
Vcc = SUPPLY VOLTAGE
SDA = SERIAL DATA
SCL = SERIAL CLOCK
IC502 XT24COOP (EPROM)