Grundig RRCD 2420 MP3, Service Documents

Page: 9 / 15

RRCD 2420 MP3
ǵ
DM
-
12
GND2
13
OP
OUT
14
OP
I-
15
OP
I+
16
TR-
17
TR+
18
TRO
19
(T
R
O
)
20
V
CC1
21
V
CC2
22
BI
A
S
23
(FOO)
24
FM-
1
FM+
2
FMO
3
(FMO)
4
TRB
5
TREG
6
MU
T
7
GND
8
(DMO)
9
DM
O
10
DM
+
11
FO
O
25
FC
+
26
FC
-
27
GND
28
GND3
29
GND4
30
U706
MM1469PH
AD 0
12
IO1
13
IO2
14
IO3
15
GND
16
IO4
17
IO5
18
IO6
19
IO7
20
IO8
21
CE1
22
AD 10
23
OE
24
NC
1
AD 16
2
AD 14
3
AD 12
4
AD 7
5
AD 6
6
AD 5
7
AD 4
8
AD 3
9
AD 2
10
AD 1
11
AD 11
25
AD 9
26
AD 8
27
AD 13
28
WE
29
CE2
30
AD 15
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
MD I
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
AD 5
15
CE
16
OE
17
2V
5
18
S
T
ANDB
Y
19
VS
S
20
VS
S
L
21
VR
AL
22
AD 10
33
LD
23
2V
5L
24
2V
5R
25
RO
26
VR
AR
27
VS
S
R
28
TESTP
29
CK
S
30
AD1
2
31
AD1
1
32
AD 9
34
3V3T
35
AD 8
36
AD 7
37
AD 6
38
REQ
39
VSS
40
AD 13
41
AD 14
42
WR
43
AD 16
44
RESET
1
MI MD
2
AD 0
3
AD 1
4
SDA
5
SCL
6
AD 2
7
3V3T
8
SDo
9
AD 3
10
AD 4
11
AD 15
45
io0
46
io1
47
GND
48
io
2
49
io
3
50
io
4
51
2V
5
52
io
5
53
io
6
54
io
7
55
GNDP
56
Pdo
57
Vc
o
1
58
2V
5P
59
Cko
60
2V
5X
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
P
LLD
A
T
A
33
FUNCT A
23
FUNCT B
24
EQ1
25
KEY-AD 1
26
KEY-ED2
27
TUNER BAND
28
PUH SELECT
29
REQ
30
SD
A
31
SC
L
32
PLL-
CLK
34
PLL-
CE
35
EQ
2
36
F
UNT
IN/OUT
37
VOL
-DN
39
VOL
-UP
40
MU
T
E
41
DE
CODE
R R
E
S
E
T
42
DOUT
43
SB
SY
44
SB
O
K
45
S1
1
S2
2
S3
3
S4
4
S5
5
S6
6
S7
7
S8
8
S9
9
S10
10
S11
11
+5
V
46
GND
47
P2V
R
E
F
48
PD
O
49
TM
A
X
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
DM O
72
2VREF
73
SEL
74
+5V
75
GND
76
XGND
77
DVS
R
81
RO
82
DVR
R
83
DVDD
84
DVR
L
85
DVS
L
87
NC
88
NC
89
RS
T
90
HOL
D
91
REM
O
TE
92
MX
O
93
MX
I
94
MG
N
D
95
XO
79
X+5V
80
M+5V
96
CO
M
1
97
CO
M
2
98
CO
M
3
99
CO
M
4
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
R791
10K
C785
100P
C784
100n
R738
***
R790
560
R789
10
C781
100n
C783
100n
+
C782
100u
C799
15P
C780
15P
X701
19.93MHz
R780 10K
C778
10n
C777 47n
C776
47n
C775 47n
C774 47n
C773 470P
C772
470P
R804
3K3
2
+
C787
47u
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
C714100n
R736
10K
R711
10K
R751
10K
C712
100n
+
C711
47u
+
C725
47u
+
C709
47u
C710
100n
C708
2n2
C705
2n2
C704
2n2
C707
2n2
R710220
R708
220
R709 220
R707
220
+
C703
10u
+
C706
10u
AD0
0
AD0
1
AD0
2
AD0
3
AD0
4
AD0
5
AD1
8
AD1
9
IO7
IO6
IO5
IO4
IO3
IO2
R747 10K
C737
100n
R745
270
R746
270
C735
330n
C734
100n
AGND(PLL)
IO1
IO0
AD 15
AD 16
AD 17
AD 14
AD 13
AD 06
AD 07
AD 08
AD 09
AD 10
3V3
R705
10K
L=FUNC I N
R784
10K
C770
10n
+
C771 47u
+
C769
47u
C768
47P
R783
47K
+
C761
47u
R781
15K
C767
15n
C766
10n
C765
2n7
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
16PINS
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
R787
10K
R788
22K
GND
SLT+
FM+
FM-
DM -
DM +
TO CD MECHANISM
R774
33K
R799 220
R773 1K
TEO
T2
C7494n7
R772
56K
+
C759
47u
+
C750
100u
R771
15
Q706 9015C
L708 10uH
R770
JR
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 DA 11V)
FC-
TR-
TR+
FC+
PD
VR
LD
GND
F
C
B
A
D
E
VCC
VC
C748 220n
C747 220n
T5 REGO
C794
100n
C743
10n
C760
56P
+
C742
47u
+
C739
47u
C745
100n
R775
220
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
128K X 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
AD 15 AD 16
AD 17
AD 14
AD 13
AD 06
AD 07
AD 08
AD 09
AD 10
AD 00
AD 01
AD 02
AD 03
AD 04
AD 05
AD 18
AD 19
AD 11
AD 12
AD 11
AD 12
IO(0-7)
AD(00-19)
1
2
3
CN701
3PINS
R808
27K
R807
27K
R702
4K7
R701
4K7
DE
CODE
R GND
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
OUT IN
G
U708
B1117N
L703 47uH
L702 47uH
3V3
+
C715
100u
+
C716
220u
C717
100n
C718
100n
L701
CAF03A
FOR SANYO DA11V PI CK-UP
C A B
ER
E
0 1
1 0
1 1
DI GITAL 3V3 REGULA TOR
ANOLOG 2V5
(PLL)
ANOLOG 2V5
(DAC)
X' TAL 2V5
DI GITAL 2V5
DGND
DGND X' GND
R-CH
GND
L-CH
R-CH
GND
GND
L-CH
R-CH
L-CH
115
GND
GND
V+
GND
RECTIFIER BOARD
R143
220K
AC SOCKET
Q113
9014C
R145
150K 1%
R146 3K9
R144A
100KH-R
R112
4K7
R113
100K
R114
100K
R117
1
R118
1
R138
15K
R127
82OK
D501 1N4001
D503
1N4001
C501
20n 50V
C502 20n 50V
C504
20n 50V
+
C119
100u
C123
100n(M)
C124
100n(M)
+
C131
1u
D102
1N4148
D101 1N4148
Q103
9014C
Q104
9014C
Q106
9014C
Q107
9014C
R202
180
SW1
SOCKET SW
R201
180
1
2
3
4
CN202B
4PINS
1
2
3
4
CN202A
4PINS
+
C120
100u
C503
20n 50V
D504 1N4001
D502
1N4001
R111
4K7
+
C111
u47
+
C112
u47
+
C121
1000u
+
C122
1000u
C113
1n
C114
1n
D108 1N4148
R115
150
R116
150
+
C128
2200u 16V
T H E R M A L
F U S E
C
T1
SP202
5.7 ohm
SP201
5.7 ohm
+
C505
2200u 16V
3
2
11
10
1
12
PR
E
G
N
D
6
5
9
7
8
4
IC101
DV3287B
R120
33K
R119
33K
C129 100n
Q105
9012H
+
C130
100u
+
C117
100u
+
C118
100u
JK201
STEREO
JACK
BATT1
1.5X6=9V
R147
120
D109
1N4148
3V+
1
2
3
CN101
3PINS
1
2
3
CN501
3PINS
BA TT2
1.5X2=3V
+
C136
47u
Q112
9014C
R142
1K
Q111
9012/H
D105
1N4148
D104
1N4148
+
C109
u47
D106
1N4148
R128
3K3
R141
1K
R129
330
R140
1K
R130
6K8
R131 18K
D103
1N4148
C133
20n
+
C132
1u
R139
2K2
+
C134
100u R132
6M8
R134
39K
R133
390K
Q108
9014C
R135
18K
R136
82K
Q110
9014C
R137
680
Q109
2SB772Q
PHONE BOARD
L-CH
GND
R-CH
L-CH
GND
R-CH
1
2
3
CN201
3PINS
1
2
3
CN107
3PINS
C137
20n
C127
20n
C126
100/16V
R121
2K2
C125 100u
C135
10u
C110
u47
R203 150
R204 150
JP201 JP
R144
15K 1%
8V
R156
***
J778
JP
J798
JP
J710
JP
J722
JP
JR703 JR
J708
JP
J724
JP
J743
JP
J753
JP
J718 JP
J711 JP
JR705 JR
J752
JP
JR713
JR
JR714
JR
JR715
JR
JR718
JR
J795
JP
J727 JP
J728 JP
J712
JP
J706
JP
J759 JP
J763
JP
J702
JP J713
JP
J707
JP
J716 JP
J715
JP
J723
JP
J726
JP J751
JP
J749
JP
J744 JP
J725
JP
J717
JP
JR15 JR J742
JP
J745
JP
J747 JP
JR
1
6
JR
JR
723
JR
J704
JP
J746
JP
J705
JP
J707
JP
J766
JP J780
JP
J774
JP
JR722
JP
J793
JP
J792
JP
J795
JP
J773
JP
J789
JP
JR
721
JR
J772
JP
J779
JP
JR
709
JR
JR
711
JR
J721
JP
J714
JP
J712
JP
JR706 JR
J720
JP
J719
JP
J754
JP
J755
JP
JR702 JR
JR701 JR J729
JP
J736
JP
J734
JP
J731
JP
J735
JP
JR725
JR
J732 JP
J760
JP
JR707 JR
J733
JP
J769 JP
J770
JP
J739
JPJ740 JP
J758
JP
J738
JP
J796 JP
J756
JP
J757
JP
J764
JP J771
JP J762
JP
JR724
JR
JR726 JR
R800
10K
R809
10K
R810
10K
J768
JP
J781 JP
C204
2n
C201
2n