Sony ICD-B5 Service Manual ▷ View online
ICD-B5
11
11
1
A
B
C
D
E
F
G
H
I
J
2
3
4
5
6
7
8
9
10
11
12
IC701
R702
TP701
TP702
X101
TP107
TP708
TP106
TP101
J101
MIC
(PLUG IN POWER)
J102
EAR
MIC101
MIC
SP101
SPEAKER
D701
OPR
RV101
VOL
TP102
TP501
TP110
FB103
TP706
TP745
TP508
TP503
TP108
TP504
IC502
TP109
TP502
TP707
TP704
TP705
TP506
TP507
TP505
TP104
TP746
TP703
TP105
Q101
S D G
R121
R123
R124
R122
R757
R105
C110
C502
C714
R132
R133
R126
R127
R115
R112
C115
R111
R113
R114
C109
C116
R110
C114
C505
C509
R709
R125
R130
C127
IC101
R134 R129 R128
R131
R708
C707
C703
R136
C126
C101
C103
C104
C120
C129
C128
R102
FB102
FB101
R103
C107
31
51
60
70
80
30
20
10
1
50
40
100
81
90
R116
C106
C105
C105
R104
R135
FB104
C
C
BE
B
R727
R726
4
5
3
2
1
Q701
E
B
C
B
C
EB
C
Q502
D701
(REC)
R117
R101
C124
IC103
C125
4
1
5
8
C121
C702
R705
R711
R712
R712
R713
LCD701 LIQUID CRYSTAL DISPLAY PANEL
R704
C701
1
5
10
15
20
25
30
25
26
50
51
C715
R724
R725
R703
R723
C708
Q501
L501
5
1
6
10
44
C504
C510
X702
IC504
ORG
ORG
IC704
D702
4
5
3
2
1
R506 C508
C507 R501 R504 R505
R502
R503
IC505
D501
4
5
3
2
1
D
S
G
IC506
IC503
1
2
3
1
3
2
4
5
R730
R508
C711
CN701
R756
R507
C712
R736
R734
R760
R758
C728
1
10
13
Q705
B E
C
R741
SL701
R729
Q704
Q702
Q703
R701
R732
R731
R733
E B
C
B C E
E B
C
R707
C706
X701
C705
R755
R766
R714
R719
R715
22
76
75
IC703
C704
23
32
35
R706
C730
C730
R710
IC702
C123
R120
R120
BLK
RED
R119
C132
1 2
3
C119
C131
1
100
RED
GRN
(PLAY)
-1
-2
F-SW
BOARD
CN501
1
1-685-023-
11
1-685-023-
11
MAIN BOARD (SIDE A)
MAIN BOARD (SIDE B)
6
10
1
5
34
3-4. PRINTED WIRING BOARD — MAIN SECTION — • Refer to page 14 for Common Note on Printed Wiring Boards.
: Uses unleaded solder.
(Page 12)
D501
H-9
D701
E-2
D702
I-10
IC101
C-5
IC103
H-3
IC502
C-9
IC503
G-9
IC504
I-10
IC505
H-10
IC506
G-10
IC701
H-8
IC702
H-4
IC703
H-5
IC704
I-9
Q101
E-8
Q501
H-10
Q502
G-10
Q701
E-2
Q702
G-8
Q703
G-8
Q704
G-8
Q705
G-9
• Semiconductor
Location
Ref. No.
Location
ICD-B5
12
12
3-5. PRINTED WIRING BOARD — F-SW SECTION — • Refer to page 14 for Common Note on Printed Wiring Boards.
: Uses unleaded solder.
1
A
B
C
D
E
F
G
H
I
J
2
3
4
5
6
7
8
9
10
MAIN
BOARD
CN701
1
P-SW
BOARD
2
TP744
TP747
TP741
1
5
6
10
TP742
CN501
TP743
TP749
TP748
R744
R747
R745
R742
R753
R743
R746
DRY BATTERY
SIZE "AAA"
(IEC DESIGNATION LR03)
2PCS, 3V
S715
S706
S705
S707
S709
W703
W704
W702
W701
W706
S704
S708
MIC SENS
INDEX
DISPLAY
MENU
STOP
ERASE
FOLDER
1-685-024-
11
1-685-024-
11
F-SW BOARD (SIDE B)
F-SW BOARD (SIDE A)
(Page 13)
(Page 11)
ICD-B5
13
13
1
A
B
C
D
E
F
2
3
4
5
6
7
8
9
10
11
12
13
14
R749
R750
R751
R748
R752
TP754
W713
W714
W712
W711
W716
TP755
TP753
TP751
TP752
S710
S714
(SELECT)
S703
HOLD
OFF ON
S713
S712
S711
1-685-025-
11
1-685-025-
11
P-SW BOARD (SIDE A)
P-SW BOARD (SIDE B)
F-SW
BOARD
2
.
>
X
PAUSE
REC/STOP
B
• x
PUSH B
PLAY/STOP
(ENTER)
3-6. PRINTED WIRING BOARD — P-SW SECTION — • Refer to page 14 for Common Note on Printed Wiring Boards.
: Uses unleaded solder.
(Page 12)
ICD-B5
14
14
3-7. IC BLOCK DIAGRAMS
VDD
VDD
OSCIN
OSCOUT
CE
INTR
32KOUT
SCLK
SO
SI
VSS
32 kHz
OUTPUT
CONTROL
COMPARATOR
W
COMPARATOR
D
ADDRESS
REGISTER
I/O
CONTROL
ADDRESS
DECODER
DECODER
SHIFT
REGISTER
INTERRUPT
CONTROL
OSC
DETECT
VOLTAGE
DETECT
ALARM W REGISTER
(WEEK, MIN, HOUR)
ALARM D REGISTER
(MIN, HOUR)
DIV
OSC
DIVIDER
CORRECTION
9
10
8
7
6
2
3
4
5
1
TIMER COUNTER
SEC, MIN, HOUR, WEEK,
DAY, MONTH, YEAR
IC704 RS5C348A-E2
IC103 LM4890MMX
1
BIAS
3
4
2
8
6
5
7
SHUTDOWN
BYPASS
+IN
-IN
VO2
GND
VDD
VO1
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.)
Common Note on Schematic Diagrams:
• All capacitors are in µF unless otherwise noted. pF: µµF
• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
and tantalums.
• All resistors are in
Ω
and
1
/
4
W or less unless otherwise
specified.
•
f
: internal component.
•
C
: panel designation.
•
A
: B+ Line.
• Power voltage is dc 3V and fed with regulated dc power
supply from battery terminal.
• Voltage and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : PB
(
no mark : PB
(
) : REC
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Circled numbers refer to waveforms.
• Signal path.
E
: PB
a
: REC
Common Note on Printed Wiring Boards:
• X
: parts extracted from the component side.
• Y
: parts extracted from the conductor side.
•
f
: internal component.
•
: Pattern from the side which enables seeing.
Lead layout of conventional IC
Caution:
Pattern face side:
Pattern face side:
Parts on the pattern face side seen from
(SIDE B)
the pattern face are indicated.
Parts face side:
Parts on the parts face side seen from
(SIDE A)
the parts face are indicated.
•
Lead Layouts
• Waveforms
1
IC101
ta
(XOUT)
0.5V/div 0.1µsec/div
4.02MHz
2
IC704
1
(32KOUT)
1.0V/div 10µsec/div
32.768kHz
3
IC704
8
(OSCOUT)
0.5V/div 10µsec/div
4
IC703
ul
(X2)
1.0V/div 0.2µsec/div
32.768kHz
5MHz
1.0Vp-p
2.2Vp-p
1.2Vp-p
3.2Vp-p
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