Grundig RCD 1420 MP3 Technical manual

RCD 1420 MP3
Service Document
Exchange Set
Es gelten die Vorschriften und Sicherheitshinweise
gemäßdemServiceManual"Sicherheit",Material-
nummer720108000001,sowiezusätzlichdieeven-
tuell abweichenden, landesspezifischen Vorschrif-
ten!
The regulations and safety instructions shall be
valid as provided by the "Safety" Service Manual,
part number 720108000001, as well as the
respective national deviations.
S
Dieses Service Dokument ist nur in Datenform verfügbar
This Service Document is only available as data
Änderungen vorbehalten/Subject to alteration
Made by GRUNDIG in Germany • H-S43 1204
http://www.grundig.com
S
Service
Manual
Sicherheit
Safety
Materialnr./Part No.
720108000001
ǵ

RCD 1420 MP3
ǵ
AUDIO
CONTROL
VR401
LCD DISPLAY
TUNER
IC601
uP
U701
KEY BOARD
MUTING
CIRCUIT
Q103 Q104
POWER
AMPLIER
IC101
FUNCTION SWITCH
SW601 Q105 Q106
CD
MECHANISM
DA11
CD SERVO SYSTEM
+MP3 DECODER
U702 U703 U705 U706
POWER
SUPPLY
Q108 Q109
Q110 Q111
Q112 Q113
AC
SUPPLY
SPEAKER
FM ANT.
10.5V
7.5V
5V

RCD 1420 MP3
ǵ

RCD 1420 MP3
ǵ
12-Oct-2004
DM-
12
GND2
13
OPOUT
14 OPI- 15
OPI+ 16
TR- 17
TR+ 18
TRO 19
(TRO) 20
VCC1 21 VCC2 22
BIAS 23
(FOO) 24
FM-
1
FM+
2
FMO
3
(FMO)
4
TRB
5
TREG
6
MUT
7
GND
8
(DMO)
9
DMO
10
DM+
11
FOO 25
FC+ 26
FC- 27
GND 28
GND3
29 GND4 30
U706
MM1469PH
AD0
12
IO1
13
IO2
14
IO3
15
GND
16 IO4 17
IO5 18
IO6 19
IO7 20
IO8 21
CE1 22
AD10 23
OE 24
NC
1
AD16
2
AD14
3
AD12
4
AD7
5
AD6
6
AD5
7
AD4
8
AD3
9
AD2
10
AD1
11
AD11 25
AD9 26
AD8 27
AD13 28
WE 29
CE2 30
AD15 31
3V3 32
U705
1M SRAM ( SOJ)
2VRO 12
TEN 13
TEO 14
SBAD 15 FEO
16
FEN
17
SEB
18
VRO
19
RERP
20
BTC
21
RFCT
22
PKC
23
RFRPIN
24
VCC3 1
RFGC 2
GMAD 3
FNI 4
FPI 5
TPI 6
TNI 7
MDI 8
LDO 9
SEL 10
TEB 11
RFGO
25
GVSW
26
AGCIN
27
RFO
28
GND
29
RFN2
30
U703
TA2153FN
SDIo
12
BCKiO
13
LRCKiO
14
AD5
15
CE
16
OE
17
2V5
18
STANDBY
19
VSS
20
VSSL
21
VRAL
22
AD10 33
LD
23
2V5L
24
2V5R
25
RO
26
VRAR
27
VSSR
28
TESTP
29
CKS
30
AD12
31
AD11
32
AD9 34
3V3T 35
AD8 36
AD7 37
AD6 38
REQ 39
VSS 40
AD13 41
AD14 42
WR 43
AD16 44
RESET
1
MIMD
2
AD0
3
AD1
4
SDA
5
SCL
6
AD2
7
3V3T
8
SDo
9
AD3
10
AD4
11
AD15 45
io0 46
io1 47
GND 48
io2 49 io3 50 io4 51
2V5 52
io5 53 io6 54 io7 55
GNDP 56
Pdo 57
Vco1 58
2V5P 59
Cko 60
2V5X 61
xi 62
xo 63
GNDX 64
U702
TC94A02F-007
S12
12
S13
13
LRCK
14
BCK
15
DATA
16
DOOR-SW
17
INNER-SW
18
+5V
19
GND
20
POWER OUT
21
CDRW/STEREO
22
PLLDATA
33
FUNCT A
23
FUNCT B
24
EQ1
25
KEY-AD1
26
KEY-ED2
27
TUNER BAND
28
PUH SELECT
29
REQ
30
SDA
31
SCL
32
PLL-CLK
34
PLL-CE
35
EQ2
36
FUNT IN/OUT
37
VOL-DN
39
VOL-UP
40
MUTE
41
DECODER RESET
42
DOUT
43
SBSY
44
SBOK
45
S1
1
S2
2
S3
3
S4
4
S5
5
S6
6
S7
7
S8
8
S9
9
S10
10
S11
11
+5V
46
GND
47
P2VREF
48
PDO
49
TMAX
50
NC
38
LPFN 51
LPFO 52
RVREF 53
VCOF 54
AGND 55
SLCO 56
RFI 57
A+5V 58
RFCT 59
RFZI 60
RFRP 61
FEI 62
SBAD 63
TEI 64
TEZI 65
FDO 66
TRO 67
VREF 68
RFGC 69
TEBC 70
XI 78
FMO 71
DMO 72
2VREF 73
SEL 74
+5V 75
GND 76
XGND 77
DVSR 81
RO 82
DVRR 83
DVDD 84
DVRL 85
DVSL 87
NC 88 NC 89
RST 90
HOLD 91
REMOTE 92
MXO 93
MXI 94
MGND 95
XO 79
X+5V 80
M+5V 96
COM1 97 COM2 98 COM3 99 COM4 100
LO 86
U701
TC94A09F-209
Q707
TL431
S1
S2
S3
S4
S5
S6
S7
S8
S9
C1
C2
C3
C4
C786
10n
C723
15P
C724
15P
X702 75KHz
R737
2K7
R791
10K
C785 100P
C784 100n
R738
2K
R790
560
R789
10
C781
100n
C783
100n
+
C782
100u
C799
15P
C780 15P
X701
16.93MHz
R780 10K
C778
10n
C777 47n
C776 47n
C775 47n
C774 47n
C773 470P
C772
470P
R804 3K3
1
2
3
4
5
6
7
8
9
10
11
12
13
CN713 C1
C2
C3
C4
S1
S2
S3
S4
S5
S6
S7
S8
S9
R704
10K
R703
4K7
R793
4K7
R794
10K
SANYO DA11V
TUNER BAND
AREA=GEN2PUH SELECT
R795
10K
1
2
CN708
DOOR SW
GND
R801
10K
R802
10K
R796 22K
1
2
3
4
CN710
TO KEY BOARD CN502
TO CD DOOR SW
TO TUNER MAIN BOARD
TO KEY BOARD CN501
+
C787
47u
R811
47K
R812
47K
D704
4148
D702
4148
L710
47uH +C713
220u
R792 10K
+
C702
100u
+
C701
220u
L709
47uH
R756 1K
R755 1K
R754 1K
R758
4K7
R7594K7 R7574K7
R712 10K
R750
10K
C740 100n
C736
100n
3V3
R785
2K2
C738 100n
R748 2M2
R752 10K
R753 2K2
R749
4K7
R782
220K
C733
100n
C714 100n
R736
10K
R711 10K
R751
10K
C712
100n
+
C711
47u
+
C725
47u
+
C709
47u
C710
100n
C708
2n2
C705
2n2
C704
2n2
C707
2n2
R710 220
R708
220
R709 220
R707
220
+
C703
10u
+
C706
10u
AD00 AD01 AD02 AD03 AD04 AD05 AD18 AD19
IO7
IO6
IO5
IO4
IO3
IO2
R747 10K
C737
100n
R745
270
R746
270 C735
330n C734
100n AGND(PLL)
IO1
IO0
AD15
AD16
AD17
AD14
AD13
AD06
AD07
AD08
AD09
AD10
3V3
R705
10K
L=FUNC IN
R784
10K
C770
10n
+
C771
47u
+
C769
47u
C768
47P
R783
47K
+
C761
47u
R781 15K
C767 15n
C76610n
C7652n7
C764 4n7
C762
10n
+
C763
47u
C746 47n
R798
220
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
CN702
1
2
3
4
5
6
CN709
6PINS
R803 220
R797
10K
Q701
8550C
Q702
9014C
C751
10n
+
C788
470u
+
C752
100u
+
C722
220u
R706
1K
R786
47K
7V+
R787
10K
R788
22K
SLT-
SLT+
FM+
FM-
DM-
DM+
TO CD MECHANISM
R774 33K
R799
220
R773 1K
TEO
T2
C749 4n7
R772
56K
+
C759
47u
+C750
100u
R771 15
Q706
9015C
L708
10uH
R770
WIRE
R769
62K
R768 68K
R767 68K
R766 68K
R765 68K
R764 62K
R763 15K R762 15K R761 15K R760 15K
C741
10n
L713
10uH
TO CD PUH(SANYO DA11V)
FC-
TR-
TR+
FC+
PD
VR
LD
GND
F
C
B
A
D
E
VCC
VC
C748 220n
C747 220n
T5 REGO C794100n
C743
10n
C760
56P
+ C742
47u
+C739
47u
C745
100n
R775220
R778
18K
C744
2P
T1
VREF
R776
43K
R777
2K2
R779
1K
T4
FEO
T3
RFO
R730 10K R729 10K R728 10K R727 10K R726 10K R725 10K R724 10K R723 10K R722 10K R721 10K R720 10K R719 10K R718 10K R717 10K
C732 100n
+
C731 47u
128KX 8 (15ns)
R735 10K R734 10K R733 10K R732 10K R731 10K R744 10K R743 10K R742 10K R741 10K R740 10K R739 10K
3V3
IO7
IO6
IO5
IO4
IO3
IO2
IO1
IO0
AD15AD16
AD17
AD14
AD13
AD06
AD07 AD08
AD09
AD10
AD00
AD01
AD02
AD03
AD04
AD05
AD18
AD19
AD11
AD12
AD11
AD12
IO(0-7)
AD(00-19)
R808
68K
R807
68K R702
10K
R701
10K
+7V
R-CH
AGND
L-CH
L707
47uH
+
C730
47u +
C720
47u
R716
10K
R715
33
C729
100n
+
C728
220u
Q708
TL431
L705 47uH
+C726
47u
+C719
10u
R714
10K
R713
33
+
C721
47u
+
C727
47u
L706 47uH
L704
47uH
OUT IN
G
U709 7805
OUTIN
G
U708
B1117N
L703
47uH
L702
47uH
3V3
+
C715
100u
+
C716
220u
C717
100n
C718
100n
18 : 8. 8
DGND
+7V
K504
DOWN/REW
K503
UP/FF
K502
STOP/BAND
K501
PLAY/ PAUSE
R503
2K7 R502 2K R501 1K5
R520
390 D501
LED
1 2 3 4 5 6 7 8 9 10 11 12 13
CN501
K512
PROG/MEM
K514
DIR/M.DN
K513
DIR/M.UP
K511
MODE
R513
2K7 R512 2K R511 1K5
1
2
3
4
CN502
AD2
AD1
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
LCD701
TO CD BOARD CN713

RCD 1420 MP3
ǵ
14-Oct-2004
L-CH
GND
R-CH
GND
GND
R-CH
GND
L-CH
R-CH
GND
GND
L-CH
R-CH
L-CH
115
NOTE : RESISTOR IN OHM
CAPACITOR IN F
INDUCTOR IN H
UNLESS OTHER SPECIFY
VR-L
VR-R
R-OUT
L-OUT
GND
GND
V+
GND
POWER BOARD
RECTIFIER BOARD
AC SOCKET
R105
220K
R106
220K
R107
4K7
R108
4K7
R112
4K7
R113
100K
R114
100K
R117
1
R118
1
R121
2K2
R138
15K
R127
82OK
D301
1N4001
D303
1N4001
C301
20n 50V
C302
20n 50V
C304
20n 50V
+
C101
u47
+
C102
u47
C103
22n(M)
+
C105
u47
+
C106
u47
C104
22n(M)
+
C119
100u
C123
100n(M)
C124
100n(M)
C127
20n
+
C131
1u
D102
1N4148 D101
1N4148
Q101
9014C
Q102
9014C Q103
9014C
Q104
9014C
Q106
9014C
Q107
9014C
R202
180
SW1 SOCKET SW
R201
180
1
2
3
4
CN202B
1
2
3
4
CN202A
+
C120
100u
C303
20n 50V
D304
1N4001
D302
1N4001
1
2
3
CN104
R111
4K7
+
C111
u47
+
C112
u47
+
C121
1000u
+
C122
1000u
C113
1n
C114
1n
1
2
3
CN501
1
2
3
CN503
R115
150
R116
150
+
C128
2200u 16V
+
C126
100u 16V
T H E R M AL
F U S E
C
T1
SP202
8 OHM
SP201
8 OHM
+
C305
2200u 16V
R110
47K
3
2
11
10
1
12
PRE GND
6
5
9
7
8
4
IC101
TA8227P
R406
3K9
C402 600p(M)
R405
3K9
C401 600p(M)
R401
39K
R109
47K
R402
39K
R404
10K
R403
10K
+
C135
22u
R120
33K
R119
33K
+
C125
100u
C129
100n
Q105
9012H
+
C130
100u
+
C117
100u
+
C118
100u
1
2
3
CN106
JK201
STEREO
JACK
BATT1
1.5X6=9V
C405
120n(M)
C406
120n(M)
C403
600p(M)
C404
600p(M)
R103
18K
R104
18K
+
C107
u47
+
C108
u47
1
2
3
4
CN105
1
2
3
4
CN502
1
2
3
SW401A
2P2TD
OFF
ON
4
5
6
SW401B
2P2TD
OFF
ON
+
C109
u47
+
C110
u47
R141
1K
R140
1K
R203
150 R204
150
R122
1K
2
3
4
1
SW101A
4P3TD
RA
OFF
CD
10
11
12
9
SW101C
4P3TD
RA
OFF
CD
R139
2K2
V+
7V
CONT
MUTE
GND
R
G
L
CD-R
GND
CD-L
1
2
3
CN201
1
2
3
CN107
R-CH
GND
L-CH
R-CH
GND
L-CH
PHONE BOARD
VOLUME BOARD
Q109
2SB772Q
R137
1K
Q110
9014C
R136
82K
R135
18K
Q108
9014C
R133
390K
R134
22K
R132
6M8
+
C134
100u
+
C132
1u C133
20n
D103
1N4148
R131
18K
R130
6K8
R129
330
R128
3K3
D106
1N4148
D104
1N4148
D105
1N4148
Q111
9015C
R142
1K
Q112
9014C
R143
220K
Q113
9014C
R144
680K 1%
R146
39K 1%
R145
6M8
+ C136
47u
C137
20n
14
15
16
13
SW101D
4P3TD
6
7
8
5
SW101B
4P3TD
RA
OFF
CD
5V6
CD+
RA-R
RA-L
1
2
3
CN103
1
2
3
CN603
+
C116
4u7
GND
RA+
MUTE
3V9
BATT2
1.5X2=3V
1
2
3
CN301
1
2
3
CN101
D108
1N4148 3V+
RADIO BOARD
FUNCTION SWITCH
1 3
2
VR401A
50KB
46
5
VR401B
50KB
1
2
3
4
CN604
7V
1
2
3
4
5
6
7
CN102
1
2
3
4
5
6
7
CN602
3V
CD+
D109
1N4148
R147
120
L1
5T
L1
5T
L2 4T
L2 4T
L2 4T
L3
4T L3 4T
L3
4T
(DV3287B)
TP101
TP102
TP103
R149
33K 1%
R148
50K
C201
2n
C202
2n
R150
T100K
R151
12K

RCD 1420 MP3
ǵ
8-Oct-2004
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
IC601
TB2132FN
C613
30P
C612
30P
C611
30P
L606
4.5X3T5
FMANT
+
C614
22u
C615
100n
+
C616
220U
4
6
3
2
1
T601
7AL-321F CF604
SFE10.7MS3
CF601
SFE10.7MS3
CF602
SFU450B
+
C617
10u
C618
330P
CF603
CDA10.7M7GA128
C619
20n R607
3K3
C621
220n
X1
75KHZ
C628
20P
C629
20P
C623
10n
R606
330
R609
4K7
R608
4K7
C622
10n C624
2n2
C625
2n2
+
C627
1u
+
C626
1u
R611
33K
R610
33K
R612
10K
R613
10K
L603
72:30T
TD603
SVC384
TC603
T10P
L602
COIL
TC602
10P
C605
20P
TD602
SVC201
C604
1n
L601
4X3T5
TC601
10P
C602
20P
TD601
SVC201
C601
1n
D601
1N4148 D602
1N4148
C603
4n7
R601
47K R602
47K
R603
47K
L604
4X2T5
C607
TD604
SVC201
R604
47K
C606
18p
3
1
6
4
L605
7AL-369SO
C609
330P
C608
30P
C610 10P
C642
10n
R605
100K
C646
100n
CLK
DA
CE
MUT
ST
D603
1N4148
L608
100uH
R620
5K6
R621
5K6
FA
FB
R614
150
Q603
9014C
Q604
9014C
R624
2K
R625
200
C640
100n
+
C639
10u R623
390
R622
3K3
4
6
3
2
1
T602
7076A
C635
15p
D604
1N4148
R615
4K7
C633
20n
+
C634
47u
Q601
9014C
Q602
9014C
C637
20P
C632
20n
+
C631
10u
L607
100uH
C636 22p
R617 68K
R619
39K
R618
820K
R616
330
RLLPF2
C638
10n
3V9
C641
1n
RA-R
GND
RA-L
RA+
MUTE
3V9
D605
1N4148
R626
10K
GND
D606
3V3
FMR TVR VDD AMR FMO AMO CE CLK DA P+ DO FB FA PG XO
XILPF1MPXDETQUADAIFVCCFIFAGCMIXGNDANT
7V
1
2
3
4
5
6
7
8
9
10
11
CN601
7V
3V
3V
R627
1K
R628
220K
R631
10K
CD+
R630
10K
C645
3p
C644
100p
Q605
9018F
C643
100p
R629
68
C647
100n
C630
100n
C648
4n7
1
2
CN602
1
2
CN901
SW901
1P2T
STEREO
MONO
ST/MO BOARD
RADIO BOARD
TP601
TP602 TP605
TP603
TP604
TP608
TP607
TP606
C620
100n

RCD 1420 MP3
ǵ

RCD 1420 MP3
ǵ

RCD 1420 MP3
ǵ

RCD 1420 MP3
ǵ