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nRESET
CDP_nRST
MMC_CLK
SCLK_BM0
LRCK_BM1
ENC_MCLK
DSP_DOUT_BM2
DSP_SCKO
DSP_LRCK
DSP_DOUT
ENC_DAI
SD_CKE
SD_CLK
SD_nCS
CDP_nRST
NOR_nCE
TDO
nTRST
TCK
TMS
TDI
CDP_nRST
MMC_CS
NOR_nCE
nWE
nOE
SD_CKE
SD_CLK
nWE
SD_nCS
MMC_DO
MMC_CLK
MMC_DI
MMC_CS
MMC_CD
CDP_A0
CDP_nSTB
DSP_LRCK
DSP_SCKO
DSP_DOUT
FEEDF
FEEDR
CDP_ADSW
CDP_SI
CDP_SCK
CDP_SO
CDP_INTQ
SCLK_BM0
LRCK_BM1
ENC_MCLK
nWE
nOE
SLED_ORG
LOAD_START
nRESET
SCLK_BM0
LRCK_BM1
DSP_DOUT_BM2
ENC_DAI
MMC_DO
MMC_DI
nRESET
USB_DETECT
TXD_R
TXD
SENS_O
CDP_A0
CDP_nSTB
FEEDF
CDP_SO
CDP_SI
CDP_SCK
TXD_R
TXD
RXD
RXD
nRESET
DECK_OPTION
CDP_INTQ
MMC_CD
SLED_ORG
USB_DETECT
FEEDR
SCLK_BM0
LRCK_BM1
SENS_O
CD_CE
LOAD_START
CD_CE
RFOK
RFOK
SENS_IN
LDEND_CHK
EJEND
EJEND
CD_LOCK
LDEND_CHK
CD_LOCK
DSP_DOUT_BM2
SVCC
VREF
SVCC
SVCC
SVCC
SVCC
SVCC
SVCC
VCC
SVCC
VREF
SVCC
SVCC
VCC
AVCC
VCC
AVCC
AVCC
VCC
VCC
8V
VREF
8V
3V
8V
8V
SVCC
3V
VCC
8V
SVCC
USB_5V
760_VDD
760_VDD
760_VDD
760_VDD
760_VDD
760_VDD
760_VDD
760_VDD
760_VDD
760_VDD
760_VDD
XVCC
760_VDD
760_VDD
760_CORE
760_CORE
USB_5V
USB_5V
760_VDD
760_CORE
760_VDD
760_VDD
760_VDD
3V
760_VDD
XVCC
760_VDD
USB_5V
760_VDD
760_VDD
760_VDD
SVCC
SVCC
760_VDD
760_VDD
R49
OPEN
U7
IP1642L
1
2
3
4
5
6
7
8
9
VIN
NC
NC
RST
VO1
VO2
Td
PGND1
PGND2
C32
104
R8
10K
C53
104
ZD2
6.2V
C49
104
U2
U
P
D
63712
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
LD
PD
PN
AVDD
DGND
RFOK
INTQ
RST
A0
STB
SCK
SD
SI
DVCC
DAVDD
ROUT
DAGND
REGC
DAGND
LOUT
DAVDD
XVDD
XTAL1
XTAL2
XGND
DVDD
CID1/FZD
CID2/TZD
C2D1/RMUTE
C2D2/LMUTE
C2D3/SHOKD/SBSY
LOCK/FR
WFCK/MIRR
RFCK/HOLD
PLCK
C16M
DGND
TX
EMPHRAMOVER
FLAG
DVDD
LIMIT
XTALEN
DGND
DIN
DOUT
SCKIN
SCKO
LRCKIN
LRCK
DVDD
FD+
FD-
TD+
TD-
SD+
SD-
MD+
MD-
DGND
TESTEN
TEST4
TEST3
TEST2
TEST1
TEST0
ADGND
EFM
ASY
ADVDD
RFI
EQ2
EQ1
RF-
RF2-
AGCO
AGCI
RFO
ATEST
C3T
AGND
A
C
B
D
F
E
VRFOIN
AVDD
REFOUT
REFC
FE-
FEO
ADCIN
TE-
TEO
TE2
TEC
AGND
PWMSW
C57
104
C15
104
R20
5K1
R79
OPEN
R107
18K
R99
OPEN
R126
100
SD2
EL-23
C1
104
EFM1
1
1
R118
2K2
R75
1K
R104
1K
R101
20K
C84
104
C65
360pF
R59
OPEN
C81
104
R55
15K
EC8
10uF
U4
IP
9004
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
FWD
OPIN1+
OPIN1-
OPOUT1
OPIN2+
OPIN2-
OPOUT2
MSC
GND
VCCI
VOL-
VOL+
VO2-
VO2+
VO1-
VO1+
VO4+
VO4-
VO3+
VO3-
GND1
BIAS
MUTE
REGO
REB
OPOUT3
OPIN3-
OPIN3+
OPOUT4
OPIN4-
OPIN4+
REV
PGND
PGND
C11
104
R43
3R0
R31
10K
C74
OPEN
C91
104
C20
104
R91
33K
C83
104
R21
1K2
C56
33P NPO
J3
CON_4P
1
2
3
4
1
2
3
4
R127
100
X1
16.9344MHz
C3
104
C36
104
C70
104
R46
4K7
C29
152 NPO
EC7
10uF
R110
0R
R100
10K
EC13
10uF
C16
104
C46
104
Q4
KRC104S
R103
7K5
C24
102
R84
33K
C18
104
C43
104
R109
OPEN
R9
10K
EC15
10uF
R68
1K
C35
104
R78
OPEN
ZD6
6.2V
C45
104
R39
10R
R119
2K2
EC17
10uF
R25
10K
R114
470K
R69
100K
C55
33P NPO
C10
104
C4
104
C79
102 NPO
EC6
10uF
R96
OPEN
BD3
10
J4
CON_2P
1
2
1
2
R44
33K
R73
1K
C58 101P NPO
R66
100K
R95
100K
R67
1K
EC11
10uF
EC10
1uF
C64
104
BD4
10
C82
104
C60 101P NPO
J5
CON_15P_MAIN
1
2
3
4
5
10
11
6
7
8
9
13
14
15
12
L_CH_OUT
AGND
R_CH_OUT
USB_5V
nRESET
SENS1IN
SENS1O
M_RXD
M_TXD
MAIN_8V
GND
L_CHO_ADC
ENC_GND
R_CHO_ADC
M_CE
C22
47P NPO
U5
SST 39VF800A70IEKE
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
A15
A14
A13
A12
A11
A10
A9
A8
NC1
NC2
/WE
/RESET
NC3
NC4
RY/BY
NC/A18(800)
A17
A7
A6
A5
A4
A3
A2
A1
A0
/CE
VSS1
/OE
DQ0
DQ8
DQ1
DQ9
DQ2
DQ10
DQ3
DQ11
VDD
DQ4
DQ12
DQ5
DQ13
DQ6
DQ14
DQ7
DQ15
VSS2
/BYTE
A16
Q1
D1225
R24
10K
R30
10K
C75
104
R36
1K
C73
OPEN
R42
3R0
D1
1N4148
C72
152
R37
33K
R82
OPEN
R13
5K1
C5
104
R17
10K
Q3
KRA106S
R74
1K
R12
0R
C89
104
R72
1K
C76
101 NPO
R76
1K
R80
100K
R92
82K
U3
CS5341
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
M0
MCLK
VL
SDOUT
GND
VD
SCLK
LRCK
RST
AINL
VQ
AINR
VA
REF_GND
FILT+
M1
U6
HY57V161610ET-7
35
26
50
10
21
22
23
24
27
28
29
30
31
32
2
3
5
6
8
9
11
12
39
40
42
43
45
46
48
49
16
34
14
36
17
15
18
7
13
38
44
1
25
20
19
4
33
37
47
41
CLK
VSS
VSS
VSSQ
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
DQ8
DQ9
DQ10
DQ11
DQ12
DQ13
DQ14
DQ15
CAS
CKE
LDQM
UDQM
RAS
WE
CS
VDDQ
VDDQ
VDDQ
VDDQ
VDD
VDD
A10
A11/BA0
VSSQ
NC1
NC2
VSSQ
VSSQ
C61
OPEN
R7
10K
R98
15K
J6
CON_3P
1
2
3
1
2
3
C51
104
R28
47K
R88
10K
C9
104
R71
1K
EC5
10uF
EC1
100uF
R64
0R
R10
10K
R60
OPEN
R113
0
ADCIN1
1
1
R48
1
M
MSPI
NC
DO
VSS
CLK
VDD
VSS
DI
CS
NC
SD
D1
D0
VSS
CLK
VDD
VSS
CMD
D3
D2
MMC
SSPI
CS
RSV
RSV
DO
VSS
CLK
VDD
VSS
DI
CON1
MMC_SOCKET
1
2
3
4
5
6
7
8
9
10
11
12
NC
DATA
VSS
CLK
VDD
VSS
CMD
RSV
NC
WP
CD
GND
R54
22K
C6
104
Q2
A812
Y1
12MHz
EC2
100uF
R15
10K
C90
104
R41
OPEN
R111
120R
R63
39K
C50
10P NPO
EC14
10uF
C12
104
ATES
T
1
1
1
C63
104
R120
10K
C14
104
C54
104
EC3
100uF
R5
4R7 1/4W DIP
R90
39K
R47
5R1
EC16
10uF
R32
10K
C7
104
C66
22P NPO
R57
6M2
C78
101 NPO
ZD3
6.2V
ADDRESS BUS
DATA BUS
JTAG
CLOCK
MEMORY
CONTROL
EXTERNAL
INTERRUPT
AD
CONVERTER
SYSTEM
CONFIG
CODEC
INTERFACE
UART
INTERFACE
USB
INTERFACE
GSIO &
SYSTEM
CONFIG
+2.7V
+1.8V
GND
+1.8V
+3.3V
U1
99
100
101
102
103
56
44
46
17
18
19
20
21
22
23
26
27
28
29
30
31
34
35
36
37
38
39
40
42
43
125
126
127
128
2
3
4
5
6
9
10
11
12
13
14
15
47
48
49
50
57
58
59
104
105
106
107
108
111
113
114
115
116
117
118
51
52
53
54
60
61
62
63
66
67
68
94
92
93
90
91
95
74
75
78
69
70
121
122
123
124
82
83
84
72
73
98
112
76
64
33
16
119
109
87
71
41
24
7
89
81
77
97
65
45
32
1
120
110
88
55
25
8
96
86
85
80
79
TDI
TMS
TCK
TDO
nTRST
SD_CKE/GPIO_B[0]
SD_CLK
SD_nCS/GPIO_B[1]
XA[0]
XA[1]
XA[2]
XA[3]
XA[4]
XA[5]
XA[6]
XA[7]
XA[8]
XA[9]
XA[10]
XA[11]
XA[12]
XA[13]/SD_BA[0]
XA[14]/SD_BA[1]
XA[15]/SD_nCAS
XA[16]/ND_ALE/SD_nRAS
XA[17]/ND_CLE
XA[18]
XA[19]
XA[20]/DQM[1]
XA[21]/DQM[0]
XD[0]
XD[1]
XD[2]
XD[3]
XD[4]
XD[5]
XD[6]
XD[7]
XD[8]
XD[9]
XD[10]
XD[11]
XD[12]
XD[13]
XD[14]
XD[15]
nCS[0]/ND_nOE[0]/GPIO_B[2]
nCS[1]/ND_nOE[1]/GPIO_B[3]
nCS[2]/ND_nOE[2]/GPIO_B[4]
nCS[3]/ND_nOE[3]/GPIO_B[5]
ND_nWE/GPIO_B[7]
nWE
nOE
GPIO_A[0]/SDO_[0]
GPIO_A[1]/SCK_[0]/CBCLK
GPIO_A[2]/FRM_[0]/CLRCK
GPIO_A[3]/SDI_[0]/CDAI
GPIO_A[4]/SDO_[1]
GPIO_A[5]/SCK_[1]
GPIO_A[6]/FRM_[1]
GPIO_A[7]/SDI_[1]
BW[0]/GPIO_A[8]/SDO_[2]
BW[1]/GPIO_A[9]/SCK_[2]
GPIO_A[10]/FRM_[2]
GPIO_A[11]/SDI_[2]
USB D+/GPIO_B[26]
USB D-/GPIO_B[27]
USB HD+/GPIO_B[28]
USB HD-/GPIO_B[29]
UART_TXD/GPIO_B[8]
UART_RXD/GPIO_B[9]
BM[0]/GPIO_B[21]/BCLK
BM[1]/GPIO_B[22]/LRCK
GPIO_B[23]/MCLK
BM[2]/GPIO_B[24]/DAO
GPIO_B[25]/DAI
GPIO_D19
GPIO_D17
GPIO_D18
GPIO_D15
GPIO_D16
GPIO_D20
XIN
XOUT
XFILT
XTIN
XTOUT
EXINT[0]/GPIO_A[12]
EXINT[1]/GPIO_A[13]
EXINT[2]/GPIO_A[14]
EXINT[3]/GPIO_A[15]
ADIN[0]
ADIN[2]
ADIN[4]
nRESET
READY/MODE[0]
MODE[1]
VDDIO_0
VDDIO_1
VDD3_USB
VDDIO_2
VDDIO_3
VDD_COR_0
VDD_COR_1
VDD_COR_2
VDD_OSC
VDD_COR_3
VDD_COR_4
VDD_COR_5
PKG1
VDDA_ADC
VDDA_PLL
VSS3D_0
VSS3D_1
VSS3D_2
VSS3D_3
VSS3D_4
VSS2D_0
VSS2D_1
VSS2D_2
VSS2D_3
VSS2D_4
VSS2D_5
GPIO_D21
VSS_ADC_0
VSS_ADC_1
VSS_PLL_0
VSS_PLL_1
SD1
EL-23
C21
152 NPO
C39
104
R29
10K
R34
30K
C26
103 NPO
R87
0R
R85
47
C67
22P NPO
C40
104
R94
10
C44
103
R14
10K
R23
10K
C80
224
R6
220R
R61
OPEN
R50
7K5
C37
104
C42
33P NPO
C87
104
C62
104
C2
104
R27
1R5
ZD4
6.2V
C38
104
R52
33K
R108
47K
ZD7
6.2V
C85
104
C17
223
C71
152
C48
104
R83
47
C31
2P NPO
R45
47K
C28
152 NPO
C27
152 NPO
C92
104
C77
102 NPO
C33
104
R121
18K
SW1
SW1AB-270
R51
7K5
R16
10K
R35
30K
C88
104
C25
560P NPO
R97
15K
C13
104
C34
104
C19
104 NPO
C59
OPEN
R19
10K
BD2
OPEN
C23
20P NPO
CON2
USB_HOST A_TYPE
1
3
2
4
VCC
D+
D-
GND
ZD5
6.2V
R105
4K7
R102
7K5
R53
33K
J1
CON_16P_FUP
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
SVCC
F
E
LD
LDG
VSS
A
VSS
B
VREF
LPD
VSS
TR-
TR+
FO-
FO+
GND
GND
R38
OPEN
R70
100K
R81
47
R33
0R
ZD1
3.6V
R93
10
R112
220K
R26
1R5
C41
33P NPO
R40
33K
R18
10K
C30
3P NPO
RFO1
1
1
R22
1K2
C8
104
R125
100
R106
10M
EC4
100uF
EC12
10uF
R77
47K
R11
10K
J2
CON_2P
1
2
1
2
R117
2K2
R65
0R
C52
103
EC9
1uF
R89
47
R86
0R
R56
33K
C47
104
R62
1K
28
SCHEMATIC DIAGRAM (CD SERVO BOARD)
Summary of Contents for ACR-127MMC
Page 1: ...SERVICE MANUAL Model ACR 127MMC CD MP3 RECIVER www akai ru ...
Page 4: ...4 DISASSEMBLY DIAGRAM ...
Page 6: ...6 BLOCK DIAGRAM ...
Page 7: ...7 ALIGNMENT LOCATIONS FM TUNER BOARD ...
Page 9: ...9 PRINTED CIRCUIT BOARDS MAIN BOARD TOP VIEW ...
Page 10: ...10 MAIN BOARD BOTTOM VIEW ...
Page 11: ...11 KEY BOARD TOP VIEW ...
Page 12: ...12 KEY BOARD BOTTOM VIEW ...
Page 13: ...13 CD SERVO BOARD TOP VIEW ...
Page 14: ...14 CD SERVO BOARD BOTTOM VIEW ...
Page 15: ...15 FRONT EJ BOARD TOP VIEW ...
Page 16: ...16 FRONT EJ BOARD BOTTOM VIEW ...
Page 17: ...17 SD CARD PCB BOARD ...
Page 18: ...18 EXPLODED VIEW PANEL ...
Page 20: ...20 EXPLODED VIEW CABINET ...
Page 23: ...23 EXPLODED VIEW DECK ...
Page 26: ...26 SCHEMATIC DIAGRAM MAIN BOARD ...