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CIRCUIT DIAGRAM -MAIN + KEY BOARD PART1
U301
LM1117-3.3V
3 I
2
O
NET306
GNDA
GNDF
Q302
NET302
R317
2k2
D3.3V
22k
R302
BUCK
D3.3V
SLT+
BUS3
(ON-ON)
AT24C32
D3.3V
C300
GND_D
10u/50
Q300
JP304
9014C
GND_D
4 - 1
NC
GNDA
C353
3.3u/50
R330
7k5
6
RO
5
AGND
C352
R331
7k5
4
LO
3
3.3u/50
2
8V
1
GNDF
NET305
GND_D
NET301
NET303
1
NET304
GNDF
C2xx uses condensor type
GND
GNDX
C325
15p
GNDX
R328
26
220
XVSS1
27
XI
C301
15p
28
XO
D1.5V
29
XVDD1
30
R334
P4-0/DCK/SI1
31
GNDX
0
P4-1/RSD/SO1
GND
32
R4-2/RCK/SCK1
BUS3
33
R4-3/SCK2/SCL
BUCK
34
R5-0/SO2/SDA
35
P5-1/SI2/INTR3
36
GND
VSS
37
VDD1
38
D1.5V
P6-0/S16/S20
39
P6-1/S15/S19
40
P6-2/S14/S18
GND
41
R335
P6-3/S13/S17
42
0
P7-0/S12/S16
43
P7-1/S11/S15
44
P7-2/S10/S14
45
P7-3/S9/S13
SYNC-REC
46
P8-0/S8/S12
MUTE
47
P8-1/S7/S11
48
GND_D
P8-2/S6/S10
49
P8-3/S5/S9
50
D3.3V
VDD3
As near as possible
OPEN
CN303
3
1
GND_D
2
GND
CLOSE
C334
0.1u
GND
KEY0
GNDF
GNDF
KEY
MUTE
LCD301
DISC
CARD
USB
888
Mode: Pin 7
Volt
Slave
0V
LED 16k EEPROM
1.35V
LED 32k EEPROM
1.9V
LCD 32k EEPROM
2.45V
LCD 16k EEPROM
3.3V
Pin 32
1. R16 change to 91
2. Pin 8 add USB power control
USB Enable
Pull Up
3. Pin 7 LCD/LED/Slave/Standalone SEL
PUH SEL
Pin 6
Volt
R8
R17
USB Disable
Pull Down
4. Add R10: 4.7k ohm
Sony KSS-213CL
0V
Open
15k
5. R123 change to 8.2k ohm
6. Change R18 to open, R19 to 10k
Richly R801
1.2V
27k
15k
Pin 40
7. Add R20 10k ohm
Sanyo DA11VF
2V
10k
15k
SD Enable
Pull Up
8. Add R49 2.2k ohm
Sony KSS-900AAA
3.3V
10k
Open
SD Disable
Pull Down
C360
220U/16V
Slave/Standalone SEL
C364
LCD/LED SEL
100u/16
R311
10k
C315
0.1u
R320
27k
C316
0.1u
GND_D
PUH SEL
R336
10K
R337
15k
Q301
1
2
GND_D
KEY0
2SB1457
GND
KEY1
C327
0.1u
C351
47u/16
GNDA
As near as possible
C341
0.1u
TRO
GND_D
GNDA
LD
100
TRO
99
C302
VRO
470p
FOO
98
AVDD3
A3.3V
97
TEZI
C307
33000p
96
TEI
95
FEI
94
SBAD/RFDC/FTE
93
RFRP
92
C344
33000p
RFZI
GNDA
91
GNDA
AVSS3
90
LDO
89
MDI
MDI
88
VRO
TC94A77FG-203
VRO
87
TNI
TNI
86
TPI
TPI
85
FPI1
FPI1
84
FPI2
IC301
FPI2
83
FNI1
FNI1
82
FNI2
FNI2
81
GNDA
RVSS3
C347
10p
80
R307
0
VRO
EQSET
79
CN301
RFO
C328
33p
78
C330
0.1u
AGCI
1
77
RFGO
2
C326
76
0.1u
TNI
RFRPI
3
C349
GNDA
4700p
FPI2
4
FNI1
5
FPI1
6
FNI2
7
TPI
8
R309
9
C336
0.1u
LD
91
10
C339
0.1u
11
MDI
12
2
1
GNDA
OT-1B
13
C355
100u/16
As near as possible
OT-4A
14
OT-4B
15
OT-1A
16
GND
C342
10000p
GNDA
CFF5116
R324
15k
C333
15000p
GNDA
R323
47k
VRO
C348
10000p
GNDA
R322
5.6k
C332
47p
R321
330k
GNDA
As near as possible
GNDA
MP3
RANDOM
REPEAT
PROGRAM
REPEAT
REPEAT
REPEAT
4 - 1
CN302
OT-2B
1
DM+
OT-2A
2
DM-
OT-3A
3
FM+
OT-3B
4
FM-
5
SLT+
6
SLT-
U302
MM1669XH/D9258
GNDF
GNDF
R318
10
2
1
L301
10uH
GNDA
A3.3V
Vc
Vcc
E
D
A
B
C
F
GND
LD
VR
PD
FC+
TR+
TR-
FC-
PROG
S403
3
1
4
2
PROG
PLAY MODe
S408
3
1
4
2
MODE
FD- DOWN
3
S402
1
4
2
FD-DOWN
FD- UP
3
S401
1
4
2
FD-UP
UP/FF
3
S404
1
4
2
UP-FF
DOWN/FR
3
S407
1
4
2
DOWN/FR
STOP
3
S406
1
4
2
STOP
PLAY/PAUSE
S405
3
1
4
2
PALY
C401
100p
GND
KEY
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