Sony ICD-BX700 / ICD-PX720 Service Manual ▷ View online
ICD-BX700/PX720
13
5-10. Key Count
This mode is mainly used for key duration test. Upon entry into
this mode, a 5-digit counter is displayed. The counter is increment
each time one of the buttons and switches is operated once. The
digits indicate “00000” to “99999”. “00000” is redisplayed after
“99999”.
This mode is mainly used for key duration test. Upon entry into
this mode, a 5-digit counter is displayed. The counter is increment
each time one of the buttons and switches is operated once. The
digits indicate “00000” to “99999”. “00000” is redisplayed after
“99999”.
DPC
N
H
$06/5
#ENTER
To exit from each mode, be sure to remove the power. That is,
release the set from the test mode.
release the set from the test mode.
ICD-BX700/PX720
14
SECTION 4
DIAGRAMS
For Schematic Diagrams.
Note:
• All capacitors are in μF unless otherwise noted. (p: pF) 50
• All capacitors are in μF unless otherwise noted. (p: pF) 50
WV or less are not indicated except for electrolytics and
tantalums.
tantalums.
• All resistors are in
Ω and 1/4 W or less unless otherwise
specifi ed.
• f : internal component.
• C : panel designation.
• C : panel designation.
• A : B+ Line.
• Power voltage is dc 3V and fed with regulated dc power
• Power voltage is dc 3V and fed with regulated dc power
supply from battery terminal.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : REC
( ) : PB
• Voltages are taken with VOM (Input impedance 10 M
( ) : PB
• Voltages are taken with VOM (Input impedance 10 M
Ω).
Voltage variations may be noted due to normal production
tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal production
Voltage variations may be noted due to normal production
tolerances.
• Circled numbers refer to waveforms.
• Signal path.
E :
E :
PB
a :
REC
THIS NOTE IS COMMON FOR PRINTED WIRING
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed
in each block.)
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed
in each block.)
For Printed Wiring Boards.
Note:
• X : parts extracted from the component side.
• f : internal component.
•
• X : parts extracted from the component side.
• f : internal component.
•
: Pattern from the side which enables seeing.
• Indication of transistor.
C
B
These are omitted.
E
Q
Caution:
Pattern face side:
(SIDE B)
Parts face side:
(SIDE A)
Pattern face side:
(SIDE B)
Parts face side:
(SIDE A)
Parts on the pattern face side seen from
the pattern face are indicated.
Parts on the parts face side seen from
the parts face are indicated.
the pattern face are indicated.
Parts on the parts face side seen from
the parts face are indicated.
• Waveforms
– MAIN Board –
IC4541 JE (XOUT1)
0.2 V/DIV, 0.1
μsec/DIV
IC4541 JK (XIN32K)
0.1 V/DIV, 20
μsec/DIV
32.768 kHz
0.4 Vp-p
12 MHz
0.6 Vp-p
ICD-BX700/PX720
ICD-BX700/PX720
15
15
4-1. BLOCK DIAGRAM
J1002
J
(SPEAKER)
SP101
+
-
+
-
+
-
56
55
58
57
61
60
59
63
55
58
57
61
60
59
63
DIN/PCM_ADDT
DOUT/PCM_DADT
LRCK/P12/PCM_LRCK
BCK/PCM_BCK
DOUT/PCM_DADT
LRCK/P12/PCM_LRCK
BCK/PCM_BCK
110 AN3/MICHP_AD
108 AN1/KEY_AD0
AN1/KEY_AD1
109
49
48 EXTINT1/P22/KEY_HOLD
EXTINT2/P23/KEY_WAKE
102 DP
103 DM
103 DM
13 EXTFIO/P2F/VBUS_XDET
82 XIN1
83 XOUT1
12
11
13
14
10
11
13
14
10
9
17
7
SDTO
SDTI
19
SDI1/P16/SP_PWR
18
20
20
P43/SI/RX/SPI0_MOSI
P44/SO/TX/SPI0_MISO
P45/SCK/SPI0_SCK
P42/INT1/PWC/SCPU_CS
P44/SO/TX/SPI0_MISO
P45/SCK/SPI0_SCK
P42/INT1/PWC/SCPU_CS
SP_PWR
15
16
16
SDO0/P09/SPI0_MOSI
SDI0/P0A/SPI0_MISO
SCK0/P08/SPI0_CLK
TIOCA1/P18/SCPU_CS
NRES/MCPU_XRST
NTRST/JTAG_NTRST
25
14
17
23
11
7
VDD_DDCOUT3.3
VDD_MCPU1.1
VDD_UNREG
VDD_RTC
VDD_NAND3.1
VDD_CPU3.1
(+1.1V)
88
VDET/RTC_VDET
51
EXTINT4/P25/RTC_XINT
89
RTCINT
22
23
X0
33
X1
19 /RST/SCPU_XRST
20
107
TXD1/P2A/ADA_PWR
ANO/BATT_AD
18
SDO1/P15/GPIO_P15
12
PHI/P11/BATT_XEN/UPG_RESULT
ADA_PWR
VDD_ANA2.9
VDD_MCPU1.1
BATT_AD
VBUS_SPPWR
BATT_XEN
LRCK
BICK
CDTI/SDA
CCLK/SCL
MCKI
PDN
SDTO
SDTI
LRCK
BICK
I2C_SDA
I2C_SCL
MCKI
ADA_XRST
SDTI
LRCK
BICK
I2C_SDA
I2C_SCL
MCKI
ADA_XRST
I2C_SDA
SCL/P28/I2C_SCL
MCLK/P13/PCM_MCLK
ADA_XRST
SCL/P28/I2C_SCL
MCLK/P13/PCM_MCLK
ADA_XRST
MICHP_DPC_AD
I/01
I
I/07 1
31
32
32
30
29
29
LIN1/IN1-
1 MPWR
RIN1/IN1+
LIN2/IN2+
RIN2/IN2-
RIN2/IN2-
36
7
R/B1
30
8
XRE
34
9
XCE1
32
16
CLE
31
17
ALE
29
18
XWE
35 XFWP/NAND_XWP
XFCE0/NAND_XCE0
XALE/NAND_ALE
XEWE/NAND_XWE
XEWE/NAND_XWE
XCLE/NAND_XCLE
XFBSY/NAND_XRB
FD0/NAND_D0
I
FD7/NAND_D7
XFRE/NAND_XRE
19
XWP
KEY_AD0
KEY_AD1
KEY_AD1
KEY_AD0_WAKE
KEY_AD1_WAKE
KEY_HOLD
1 mSHUTDOWN
4 IN-
27
LOUT/
LOP
21
HPR
22
HPL
29
–
32,
41
–
44
1 37,38,
41
–
46
COM0
–
COM3
SEG0
–
SEG33
I
SEG36
–
SEG41
P17/SEG35/LED_XRED
5
OUT+
6
VDD
VDD_UNREG
8
OUT-
19
P30/LED_XGRN
D6051 (RED)
D6052 (GREEN)
(OPERATION)
5
–
1,64
–
57,
55
–
53,32
–
27
9
–
6
1
–
4
5
–
44
LCD101
LCD CONTROL
IC5521
D3051
LIQUID
CRYSTAL
DISPLAY
PANEL
87 XIN32K
86 XOUT32K
MAIN CPU
CORE+1.5V
REG.
IC3670
VBUS+3.3V
REG.
IC3610
RTC INT SWITCH
Q6093
KEY MATRIX
S6002
–
6006,6011
S6012
–
6016
KEY WAKEUP SWITCH
Q6092
VDD BATT SWITCH
Q3022 (2/2)
SWITCH
Q3006
X4543
12MHz
X5521
4MHz
X4542
32.768kHz
2 VIN
Q3001 (1/2)
Q3001 (2/2)
D3001
+5.7V DETECT
IC3001
1
VOUT
4 VIN
+4.0V DETECT
IC3002
3
VOUT
Q3022
(1/2)
VOUT
RESET
IC3061
2
VDD
VOUT
RESET
IC3062
2
VDD
4
1
VDD_DDCOUT3.3
OUT
VOLTAGE DETECT
IC8021
2
VDD
4
VOUT
+1.4V DETECT
IC3021
4
VIN
3
VOUT
L3601
BX700
BX700
PX720
BX700
PX720
PX720
PX720
PX720
DRY BATTERY
SIZE “AA”
IEC DESIGNATION
LR03
2PCS,3V
BX700
DC/DC CONVERTER
IC3600
3
BAT
2
LX
4
EN
10
FB
8
MODE
9
MAIN CPU
CORE+1.1V
REG.
IC3680
CODEC
AUDIO
+2.9V REG.
IC3640
VBUS POWER
SWITCH
Q3007,3008
VDD BAT
SWITCH
Q3025
SWITCH
Q3024
RTC
BACK UP
REG.
IC3051
MAIN CPU
IO+3.1V
REG.
IC3620
MIC101
J1001
(MICROPHONE)
S6021
HOLD
FLASH MEMORY
IC7501
MIC/HP AMP,
CODEC(ADC,DAC),
IC2001
SPEAKER AMP
IC1001
MEMORY CONTROL,SYSTEM CONTROL
IC4541
CN4541
(USB)
1
2
3
5
D+
VBUS
D
–
ON
3
OFF
(PLUG IN POWER)
N
VBUS
SWITCH
Q3002
Signal path
: REC
: PB
ICD-BX700/PX720
ICD-BX700/PX720
16
16
4-2. PRINTED WIRING BOARD – MAIN Section (1/2) –
•
: Uses unleaded solder.
1
A
B
C
D
E
F
G
2
3
4
5
6
7
8
9
10
11
12
13
14
1-878-019-
11
(11)
MAIN BOARD (SIDE A)
D3610
RB6068
R3030
R3032
R3033
R3034
FB1001
R3036
FB1002
C3061
C3062
1
1
7
2
8
2
4
3
4
3
1
2
4
3
1
2
4
3
1
33
32
17
49
64
48
16
1
2
4
3
1
2
4
1
5
8
2
1
3
4
2
1
3
4
2
1
8
5
1
4
3
4
4
3
1
7
1
8
2
7
1
8
2
2
2
3
1
4
S6005
C3640
IC3610
C3641
JL7502
IC3620
R5577
R3061
IC3061
C3670
IC3640
C3671
C3680
C3681
C3682
C3683
JL7552
JL7553
IC3670
JL7554
X4543
JL7558
D3681
R4620
R3680
IC3680
JL7567
JL7568
JL7569
C3101
JL1001
JL1002
BLK
RED
RED
X5521
X5521
JL1005
JL1006
JL1007
JL1008
RED
BLK
R3105
R4687
R4688
R4689
C1001
R6001
C1019
C1020
C1021
C1022
C1023
C1024
C1025
R1001
IC1001
R3143
R3146
R1012
S6002
S6003
SP101
(SPEAKER)
DRY BATTERY
SIZE”AAA”
IEC DESIGNATION
LR03
2PCS,3V
R1014
S6004
S6006
S6012
R1023
R1024
S6015
R3169
C6071
R1036
R1037
R1039
J1002
J
J1001
MIC101
(MICROPHONE)
N
D6051
D6052
D6051
(OPERATION)
(RED)
D6052
(OPERATION)
(GREEN)
R6051
C2005
R6052
R6053
R1042
R1044
C2014
C2015
R6063
R6063
R6064
C6092
Q6093
R6070
R6071
JL3001
JL3002
JL3004
–
+
Y
[
REC
/PAUSE
DIVIDE
[DISPLAY/ MENU
#
ENTER
PLAY/STOP
JL5521
JL3007
C4554
C4555
C4556
C4557
C4560
R6092
C4565
JL3211
C4566
JL3212
C4567
JL3213
C4568
JL3215
JL3216
JL3217
RB6001
RB6002
RB6003
PX720
PX720
PX720
PX720
PX720
PX720
PX720
BX700
BX700
BX700
BX700
C4570
RB6005
C3002
C3004
Q3002
C5524
Q3006
Q3007
Q3008
C8021
C8022
JL6501
JL6502
JL6503
JL6504
JL6505
JL6506
JL6507
JL6508
JL6509
JL6510
C3021
JL651
1
JL6512
JL6513
JL6514
C3024
JL6515
D3001
JL6516
Q3022
D3002
JL6517
Q3024
JL6518
JL6519
Q3025
5
8
4
1
1
3
6
4
R3001
JL6520
R3008
JL6521
IC3001
JL6522
IC3002
JL6523
JL6524
C3610
JL6525
IC5521
LCD101
LIQUID CRYSTAL DISPLAY PANEL
C3611
JL6526
JL6527
JL6528
JL6529
R4590
R4591
IC8021
JL6530
JL6531
JL6532
JL6533
R4598
JL6534
C3620
R4599
JL6535
C3621
JL6536
JL6537
JL6538
RB4500
JL6539
R3022
R3023
R3024
R3025
R3026
R3602
R3027
R3604
JL6540
R3028
JL6541
R3029
IC3021
JL6542
JL6543
JL6544
JL6545
PX720: E
MODEL
PX720: E
MODEL
EXCEPT
PX720: E
MODEL
EXCEPT
PX720: E
MODEL
Ref. No. Location
• Semiconductor Location
Ref. No. Location
D3001 C-9
D3002 B-9
D3610 D-10
D3681 C-12
D6051 F-2
D6052 F-2
D3002 B-9
D3610 D-10
D3681 C-12
D6051 F-2
D6052 F-2
IC1001 B-11
IC3001 B-9
IC3002 C-9
IC3021 E-13
IC3061 F-10
IC3610 C-10
IC3620 D-9
IC3001 B-9
IC3002 C-9
IC3021 E-13
IC3061 F-10
IC3610 C-10
IC3620 D-9
IC3640 E-11
IC3670 C-11
IC3680 C-12
IC5521 E-5
IC8021 C-6
IC3670 C-11
IC3680 C-12
IC5521 E-5
IC8021 C-6
Q3002 B-8
Q3006 E-13
Q3007 B-10
Q3008 C-9
Q3022 F-12
Q3024 E-12
Q3025 F-13
Q6093 D-7
Q3006 E-13
Q3007 B-10
Q3008 C-9
Q3022 F-12
Q3024 E-12
Q3025 F-13
Q6093 D-7
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