Schaltpläne und Druckplattenabbildungen / Circuit Diagrams and Layout of the PCBs
EC 4790 CD
Schaltpläne und Druckplattenabbildungen / Circuit Diagrams and Layout of the PCBs
EC 4790 CD
3 - 4
GRUNDIG Service
3 - 3
GRUNDIG Service
CD-Teil / CD Part
HF-Teil / RF Part
10R
CR1472L
100K
CR1474L
100K
CR1473L
47K
CR1481L
100K
CR1476L
47K
CR1477L
+
47U/6V3
C1476L
+
47U/6V3
C1473L
100N
CC1474L
100N
CC1477L
100N
CC1476L
100N
CC1472L
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
* CBU1471L
+
100U/16V
C1478L
3R3
R1471L
1R
R1472L
+
47U/16V
C1471L
+
47U/16V
C1477L
FMP1471
FMP1472
FMP1473
1
2
3
8305-007-808
L7808CV
IC1472L
1
2
3
8305-205-703
7805
IC1471L
D_CD_MS
CD-NF-R
CD-INSW
CD-NF-L
+5V
CD-SLEEP
CD-RESET
CD-SRQ
CD-CS
+U
+G
+G
CD-CLK
D_MS_CD
ABGLEICHPUNKTE
MESSPUNKTE
09.04.99
* = BAUTEILE REFLOWSEITE
HAUPTPLATTE 19373-222.00
CD-LAUFWERK SONY SCD-333A
8V (ACC)
MAIN BOARD
SRQ
D_CD_MS
D_MS_CD
SCK
CS
-SLEEP
-RESET
5V (BU)
5V (ACC)
GND (ACC)
GND (ACC)
GND (ACC)
5V (A)
5V (A)
LEFT
GND (A)
RIGHT
GND (A)
INSW
WITH SIGNAL:TR
MIT SIGNAL:TB
WITHOUT SIGNAL:FM
OHNE SIGNAL:FM
OHNE SIGNAL:AM
WITHOUT SIGNAL:AM
WITHOUT SIGNAL
OHNE SIGNAL
ALL VOLTAGES ARE APPROXIMATES, MEASURED AT UB=14V WITH RESPECT TO NEGATIV
ALLE SPANNUNGEN SIND NÄHERUNGSWERTE, GEMESSEN BEI UB=14V GEGEN MINUS
13V8
5V0
5V0
D
S
G
BF543
CT606A
+
10U/16V
C603A
1SV172
CD01
BU01
+
22U/16V
C30
BC818/40
CT603A
BC848C
CT604A
BC848C
CT607A
C606A
*
CC12
3P9
12P
CC05
*
CC10
4P7
8P2
CC07
*
CC25
100N
15P
CC08
* CC09
1P0
2P2
CC04
*
CC20
COG
1N0
8P2
CC06
3P3
CC02
22N
CC21
47N
CC604A
100N
CC609A
*
CC613A
*
CC614A
1N0
COG
1N0
CC22
CC617A
10N
CC612A
COG
1N0
CC11
100N
CC608A
*
CC605A
47N
27P
CC625A
1N0
CC615A
*
CC601A
2N2
2N2
CC603A
15P
CC611A
1K0
CR03
*
CR06
10R
47K
CR08
*
CR09
150R
100K
CR07
100K
CR01
47K
CR05
1K0
CR02
CR102
*
CR622A
82R
1K5
CR612A
560K
CR602A
820K
CR601A
*
CR04
10R
22K
CR611A
270R
CR607A
1M0
CR606A
2K7
CR608A
*
CR621A
120R
3K3
CR617A
47K
CR613A
680K
CR619A
100K
CR614A
120R
CR618A
100R
CR604A
82R
CR609A
220K
CR610A
* CR605A
1K0
1M0
CR615A
*
CL600A
2UH2
*
CL605A
4UH7
*
CL02
2UH2
S
D
G
BF999
CT02
47K
DTA143ZK
4K7
CT100
1
2
3
4
L01
1
2
34
L03
1
2
3
4
6
7
8
F101
FMP1
FMP04
FMP24
FMP25
FMP606
FMP603
FMP02
FMP602
FMP604
7
8
1
3
4
6
L604A
7
8
1
3
4
6
L603A
K
33P
C01
K
1N0
C03
BB512
CD603A
G1
G2
S
D
BF992A
CT602A
+
470N/50V
C31
200R
1,7V
+
+
50uA
MIXER
BALANCED
16
15
14
13
4
3
2
1
* CD601A
Z47
BB814
CD02
BB814
CD04
+FM
+S
FM-ABST
ABGLEICHPUNKTE
MESSPUNKTE
1V7
1V0
1V0
10
5
4
9
5
4
10
9
8V
8V7
8V7
8V6
0V0
= 2V85
93MHZ5
ABSTSPG.:FM
LW: 1V0...5V0
MW: 1V2...7V8
ABSTSPG.:AM
0V72
0V96
7V8
3V0
7V0
3V1
7V8
FM
LW
MW
9V2
9V (FM)
0V (AM)