Sony ICD-U50 / ICD-U60 / ICD-U70 Service Manual ▷ View online
17
17
ICD-U50/U60/U70
ICD-U50/U60/U70
4-5. SCHEMATIC DIAGRAM – MAIN BOARD, USB BOARD –
• See page 12 for Waveform.
• See page 18 for IC Block Diagrams.
• See page 18 for IC Pin Function Description.
IC B/D
IC B/D
no mark : PLAY
( ) : REC
( ) : REC
*
: Impossible to measure
*
*
*
*
*
*
*
*
*
*
2.8
2.7
2.7
2.7
2.7
0
2.8
2.7
2.7
2.8
0
0
0
0
0
0
2.7
2.7
2.7
2.7
2.6
0
0
0
0
2.1
1.7
0.5
0.6
0
(1.2)
2.7
2.1
2.8
2.8
2.7
0
(0)
(2.7)
2.8
0
(2.7)
*
* * * *
*
*
*
*
*
*
*
*
*
*
*
*
*
0
1.5
1.5
1.2
2.8
0
1.5
1.5
0
0
0
0
0
0
0
2.6
0
2.7
0
0
0
2.8
2.8
2.8
2.8
2.8
2.8
2.8
2.8
2.8
2.8
2.8
2.8
2.8
2.8
0
0
2.7
2.7
2.8
0
2.8
1.5
2.1
1.5
1.5
0
2.8
1.5
1.5
1.5
1.5
2.8
0.5
1.5
2
*
0
2.6
2.8
0
2.6
2.1
IC702
K05SONY03 (U50)
K9F4G08UOM-PCBOT (U60)
K9K8G08UOM-PCBOT (U70)
K9K8G08UOM-PCBOT (U70)
MAX1797EUA+TG069
LIQUID
CRYSTAL
DISPLAY
DRY BATTERY
SIZE "AAA"
(IEC DESIGNATION LR03)
1PCS, 1.5V
TOTAL CURRENT
PLAY : 86mA
REC : 91mA
PLAY FF : 145mA
PLAY FR : 143mA
STOP : 1.3mA
A
JACK
BOARD
CN704
(Page 15)
.
u
>
VOL +
VOL –
REC/PAUSE
STOP
A-B
MENU
MAIN BOARD
1
USB BOARD
REAL TIME CLOCK
IC703
SYSTEM CONTROLLER
IC701
DC DC
CONVERTER
CONSUMPTION
VOLTAGE DETECTOR
Q501
VOLTAGE
CONTROLLER
IC504
IC505
IC501
REG
REG
IC502
IC503
BOOST CONVERTER
NAND FLASH
MEMORY
B
Ver. 1.1
18
18
ICD-U50/U60/U70
ICD-U50/U60/U70
• IC Block Diagrams
– MAIN Board –
IC501 TPS61020DRCR
IC703 RTC8564NB
EN
Anti-
Ringing
Backgate
Control
VOUT
Vmax
Control
Gate
Control
Regulator
Control Logic
Oscillaor
Temperature
Control
Vref=0.5V
Error
Amplifier
PGND
PGND
20pF
10k
Ω
GND
Low Battery
Comparator
Comparator
Vref=0.5V
GND
GND
1
2
VOUT
3
FB
4
LBO
5
GND
10 PGND
9
SW
8
PS
7
LBI
6
VBAT
10
1
2
3
4
5
6
7
8
9
20
19
18
17
16
15
14
13
12
10
OSC
32.768kkHz
CRYSTAL
POR
OUTPUT
CONTROL
Voltage Detector
Control 1
Control 2
Seconds
Minutes
Hours
Days
Weekdays
Month/Century
Years
Minutes Alarm
Hour Alarm
Day Alarm
Weekend Alarm
CLKOUT frequency
Timer Control
Timer
0F
DIVIDER
CONTROL
LOGIC
ADDRESS
REGISTER
I
2
C-BUS
INTERFACE
GND1
INT
GND2
NC1
SDA
SCL
CLKOUT
VDD
CLKOE
NC2
NC3
NC4
NC5
NC6
NC7
NC8
NC9
NC10
NC11
NC12
11
00
• IC Pin Function Description
MAIN BOARD IC701 DE53SN589AM8BLC (SYSTEM CONTROLLER)
MAIN BOARD IC701 DE53SN589AM8BLC (SYSTEM CONTROLLER)
Pin No.
Pin Name
I/O
Description
1
SPOUTP
O
Speaker output
2
BCLK
O
Not used (open)
3
TXMOD
O
Not used (open)
4
RSSI
I
Not used (connected to ground)
5
XIN
I
Clock input terminal (4.096MHz)
6
XOUT
O
Clock output terminal (4.096MHz)
7
VDD
—
DSP core power supply output terminal
8
VCCIN
—
DSP core power supply terminal
9
GND1
—
Ground terminal for digital circuit
10
USBP
I/O
USB data signal (+)
11
USBM
I/O
USB data signal (–)
12
VCC1
—
Power supply terminal for digital circuit
13
DCDCGND
—
LCD backlight LED drive ground
14
DCDCIN
I
LCD backlight LED drive power supply terminal
15
DCDCOUT
O
LCD backlight LED drive (Pull up)
16
RSTN
I/O
External reset signal input and output
17
BGPIO0
O
Chip enable signal output for NAND Flash Memory pull-up terminal
18
BGPIO3
O
Address latch enable signal output for NAND Flash Memory
19
BGPIO4
O
Command latch enable signal output for NAND Flash Memory
20
BGPIO5
O
Not used
21
BGPIO6
O
Chip enable signal output for NAND Flash Memory (Not used)
22
EGPIO14
I
Test mode start signal input (for factory use)
23
BGPIO1
O
[PLAY] LED drive control signal output
24
BGPIO2
O
[REC] LED drive control signal output
25
BGPIO11
I/O
Not used (open)
26
BGPIO12
O
Not used (open)
27
BGPIO13
O
Headphones mute control signal output
28
BGPIO15
O
Not used (open)
29
CGPIO3
I
USB connection detect signal input
30
GND2
—
Ground terminal for digital circuit
31
VCC2
—
Power supply terminal for digital circuit
32
EGPIO12
O
LCD controller chip select signal output
33
EGPIO13
O
LCD controller serial clock signal output
34
EGPIO11
O
LCD controller serial data signal output
35
BGPIO7
O
LCD controller address signal output
36
BGPIO8
O
External speaker mute control signal output (not used)
37
BGPIO9
O
External speaker shutdown control signal output (not used)
38
BGPIO10
I
NAND Flash Memory Ready/Busy signal input
39
DGPIO10
I/O
NAND Flash Memory CS1/CS2 select signal input (not used)
40
DGPIO9
O
USB connection detect signal input
41
DGPIO8
I
RTC interrupt input
42
DGPIO7
I/O
NAND Flash Memory data bus
43
DGPIO6
I/O
NAND Flash Memory data bus
44
DGPIO5
I/O
NAND Flash Memory data bus
45
DGPIO4
I/O
NAND Flash Memory data bus
46
DGPIO3
I/O
NAND Flash Memory data bus
47
DGPIO2
I/O
NAND Flash Memory data bus
Ver. 1.1
19
ICD-U50/U60/U70
48
DGPIO1
I/O
NAND Flash Memory data bus
49
DGPIO0
I/O
NAND Flash Memory data bus
50
GND3
—
Ground terminal for digital circuit
51
VCC3
—
Power supply terminal for digital circuit
52
DRDN
O
Read enable signal output for NAND Flash Memory
53
DWRN
O
Write protect signal output to NAND Flash Memory
54
AGPIO1
O
Not used (open)
55
AGPIO3
O
RTC clock output acknowledge output
56
AGPIO4
O
MIC power control signal output
57
AGPIO5
O
MIC sensitivity select signal output
58
AGPIO6
I
REC/PAUSE key signal input
59
AGPIO7
I
NX key signal input
60
AGPIO8
I
STOP key signal input
61
AGPIO9
I
> key signal input
62
EGPIO7
I
. key signal input
63
EGPIO8
I
A-B
key signal input
64
EGPIO9
I
VOL+ key signal input
65
EGPIO10
I
VOL– key signal input
66
EGPIO15
I
z
, MENU key signal input
67
GND4
—
Ground terminal for digital circuit
68
VCC4
—
Power supply terminal for digital circuit
69
TCK
I
JTAG clock signal input (Pull up)
70
TMS
I
JTAG mode select signal input (Pull down)
71
TDI
I
JTAG data input (Pull down)
72
TDO
O
JTAG data output (Pull up)
73
DGPIO15
I
USB resume detection signal input
74
DGPIO14
I
WAKE UP interrupt input
75
DGPIO13
I
HOLD switch signal input
76
DGPIO12
I
DPC switch signal input
77
DGPIO11
I
Headphones detect signal input
78
AGPIO0
I
Pull down
79
AGPIO2
I
Pull down
80
AGPIO10
O
I
2
C clock input for RTC control
81
AGPIO11
I/O
I
2
C data input/output for RTC control
82
AGPIO12
O
Test mode control UART data output (not used)
83
AGPIO13
I
Test mode control UART data input (Pull down)
84
BGPIO14
O
USB control signal output
85
GND5
—
Ground terminal for digital circuit
86
DCIN3/PDN
I
Not used (connected to ground)
87
DCIN1/IBAT
I
Battery voltage detect and battery consumption detect signal input
88
VREF
O
Reference voltage output terminal for analog circuit
89
MIP
I
MIC signal input
90
MIN
I
Not used
91
DCIN2/MPWR
I
Not used
92
GNDA
—
Ground terminal for analog circuit
93
VCCA
—
Power suplly for analog circuit
94
LINO
I
Not used (connected to ground)
95
DCINO
I
Not used (connected to ground)
96
LOUT0
O
Headphones [L] signal output
Pin No.
Pin Name
I/O
Description
20
ICD-U50/U60/U70
Pin No.
Pin Name
I/O
Description
97
HSSPOUTS
O
Headphones [R] signal output
98
VCCPA
—
Power supply for amplifier
99
SPOUTN
O
Speaker output
100
GNDPA
—
Ground terminal for power amplifier
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