EC 4790 CD
Schaltpläne und Druckplattenabbildungen / Circuit Diagrams and Layout of the PCBs
EC 4790 CD
Schaltpläne und Druckplattenabbildungen / Circuit Diagrams and Layout of the PCBs
GRUNDIG Service
3 - 9
GRUNDIG Service
3 - 10
12
11
10
1
2
3
L2060
*
CC2054
100N
100N
CC2057
*
CC501
100P
* CC502
100N
100N
CC2072
1N0
CC2073
1N0
CC2066
*
CC2062
22N
*
CC2063
1N0
1N0
CC2068
100N
CC2067
100N
CC2058
* CC507
560P
*
CC504
330P
*
CC508
100N
*
CC509
10P
*
CC506
100N
1
2
3
4
5
6
7
8
* CIC2051
L4949
BZX84C4V7
CD2061
BZX84C5V6
CD2066
F
10N
C2071
+
100U/25V
C2061
BC818/40
CT2051
BC808/40
CT2061
33K
R2068
+
1M0/6V3
C2056
BAT41
D2064
* CT2062
BC818/40
BC848C
CT2071
* CT2307
BC848C
* CT2304
BC848C
* CT2303
BC848C
BC848C
CT2306
*
CD2303
BAS16
* CD2302
BAS16
* CD2301
BAS16
BDP951
CT2064
BDP951
CT2063
1R0
R2067
12R
R2303
+
22U/63V
C2069
+
2U2/35V
C503
FMP2051
FMP2050
FMP2052
RDCL
T57
OSCO
OSCI
VDDD
VSSD
TEST
TSTLD
QUAL
RDDA
VREF
MUX
VDDA
VSSA
CIN
SCOUT
FIXED DIVIDER
VARIABLE AND
COSTAS LOOP
DEVIDER
OSZILLATOR
VP1
AND SYNC
REGENERATION
CLOCK
SELEKTOR SWITCH
OUTPUT
TESTLOGIC AND
GENERATOR
BIT
QUALITY-
COMARATOR
CLOCKED
DECODER
SYMBOL
BIPHASE
FILTER
ALIASING
ANTI
(8th ORDER)
BANDPASS
57KHZ
FILTER
RECONSTRUK.
VOLTAGE
REFERENZ
DECODER
DIFFERENTIAL
9
10
11
12
13
14
15
16
8
7
6
5
4
3
2
1
* CIC501
8305-826-579
SAA6579T
+
1U0/50V
C2052
+
1U0/50V
C2064
+
1U0/50V
C2301
5
6
7
8
4
3
2
1
* CIC2052
L78L05ACD
BC368
T2302
BC368
T2301
+
100U/6V3
C2051
+
47U/16V
C2053
+
10U/16V
C2302
47K
CR2051
100K
CR2054
3K3
CR2052
47K
CR2053
47K
CR2056
*
CR2057
100R
15K
CR2070
1K0
CR2066
22K
CR2064
27K
CR2069
*
CR503
0R
* CR2076
100R
* CR2077
100R
10K
CR2061
*
CR2062
100K
*
CR2063
390R
* CR2072
10K
10K
CR2073
1K0
CR2071
*
CR2311
22K
* CR2313
22K
* CR2302
100R
* CR2301
100R
3K9
CR2308
*
CR2306
100K
22K
CR2078
*
CR502
22R
*
CR501
22R
* CR2307
470R
5K6
CR2309
* CR2304
2K2
*
CR2058
100R
R2060
8R2
+G
+G
+G
+G
+G
+G
+S
+S
NACHT
NACHT
LK2
LICHT
+U
+U
-30V
+T
F+
F-
SDA
RDS-CLK
RDS-CLK
MUTE
UREF
K-SIG
FELDST
CD-SLEEP
CD-CS
RDS-DATA
CD-CLK
MPX1
+A
+A
+A
+A
SCL
LK1
TAST
GER-BEEP
ELAIS-ON
4MHZ332
4MHZ332
+5V
+5V
+5V
D_MS_CD
RESET
CD-SRQ
T
15.07.99
HAUPTPLATTE 19373-222.00
2V2
4V7
4V7
2V4
2V4
2V4
2V4
2V4
2V4
RDS DECODER
BELEUCHTUNG
ILLUMINATION
5V SWITCHED
5V GESCHALTET
ALL VOLTAGES ARE APPROXIMATES, MEASURED AT UB=14V WITH RESPECT TO NEGATIV
ALLE SPANNUNGEN SIND NÄHERUNGSWERTE, GEMESSEN BEI UB=14V GEGEN MINUS
WITH SIGNAL:TR
MIT SIGNAL:TB
WITHOUT SIGNAL:FM
OHNE SIGNAL:FM
OHNE SIGNAL:AM
WITHOUT SIGNAL:AM
WITHOUT SIGNAL
OHNE SIGNAL
MAIN BOARD
5V-STROMVERSORGUNG
5V POWER SUPPLY
* = BAUTEILE REFLOWSEITE
5V0
-23V
13V8
5V0
5V0
5V0
9V2
14V
9V2
5V0
5V0
14V
14V
14V
10V
10V
-23V
2V5
AC
13V8