Rds-Decoder - Grundig Allixx SCC 5460 RDS Service Manual

Allixx SCC 5460 RDS / Allixx SCD 5490 RDS
CR934 INKREM1
603
22K INK1-INIT
CR932
DIS-SCLK
603
DIS-SID
100R
CR935 DIS-RST
603
RDS-CLK
100R
CR924
BLINK
603
DAB-TXD
1K0
CR927
+G2
603
CR926
10K
603
10K
+G
CL921
+5V
M21B272S
DAB-RXD
CR914
DIS-RS
603
DIS-CS
100R
CR912 CD-MUTE
603
10K
CR909
CD-STS
603
CR908
CD-SRQ
1K0
603
CD-IN
1K0
CR906 CD-STBY
603
CD-RESET
1K0
CR903
CD-CMD
603
CD-SCK
1K0
CR901
CD-CS
603
BED-ON/OFF
1K0
CR905
RDS-MUTE
603
1K0
CR894 CR896
603 603
+G
47K 47K
RESET
CR888
ON/OFF
603
CLIP
10K
NACHTABS
8
+A 13V9
7
CIC802
+U 13V9
6
BR24C16F
+G 5V0
5
+S 9V1
GRUNDIG Service
Schaltpläne und Platinenabbildungen / Circuit Diagrams and Layout of the PCBs
+A
+5V
CR977
EXT-TXD
805
100R
CT971 CT972
BC858B BC848C
CR973
603
5K6
TXD
DGND DGND
+5V
RXD CR981
603
2K2
+A
CR985
CT981
603
BC848B
100K
CR986
CT982
EXT-RXD
603
BC848C
680K
DGND DGND DGND
HAUPTPLATTE
MAIN BOARD
OHNE SIGNAL
WITHOUT SIGNAL
MIT SIGNAL:TB
WITH SIGNAL:TR
ALLE SPANNUNGEN GEMESSEN BEI UB=14V GEGEN MINUS
ALL VOLTAGES MEASURED AT UB=14V WITH RESPECT TO NEGATIV
18.12.01
Allixx SCC 5460 RDS / Allixx SCD 5490 RDS
RDS-Decoder / RDS Decoder
DGND
1 2 3
QUAL RDDA VREF
DIFFERENTIAL
DECODER
BIPHASE
SYMBOL
DECODER
QUALITY-
BIT
GENERATOR
CLOCK
REGENERATION
AND SYNC
RDCL T57 OSCO
16 15 14
2V5
DGND
3 - 5 GRUNDIG Service
Schaltpläne und Platinenabbildungen / Circuit Diagrams and Layout of the PCBs
CR2509
10K

RDS-DECODER

603
DECODEUR RDS
CR501R
603
12R
4V8
DGND
DGND
CC502R
603
10N
2V5 2V5 4V9 2V5 2V5
4 5 6 7 8
MUX VDDA VSSA CIN SCOUT
VP1
REFERENZ
VOLTAGE
ANTI 57KHZ
RECONSTRUK.
ALIASING BANDPASS
FILTER
FILTER (8th ORDER)
COSTAS LOOP
CLOCKED
VARIABLE AND
COMARATOR
FIXED DIVIDER
CIC501R
TESTLOGIC AND
OSZILLATOR
SAA6581T
OUTPUT
DEVIDER
SELEKTOR SWITCH
OSCI VDDD VSSD TEST TSTLD
13 12 11 10 9
2V4 1V8 4V9
DGND DGND DGND
4.332MHz
CQ501R
1 3
2
DGND DGND
ALLE SPANNUNGEN GEMESSEN BEI UB=14V GEGEN MINUS
ALL VOLTAGES MEASURED AT UB=14V WITH RESPECT TO NEGATIV
OHNE SIGNAL
WITHOUT SIGNAL
MIT SIGNAL:TB
WITH SIGNAL:TR
HAUPTPLATTE
MAIN BOARD
+A 13V9
+U 13V9
+G 5V0
+S 9V1
18.12.01
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