Sony ICD-B5 Service Manual ▷ View online
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
15
ICD-B5
SECTION 4
EXPLODED VIEWS
Ref. No.
Part No.
Description
Remark
4-1. CASE SECTION
Ref. No.
Part No.
Description
Remark
NOTE:
• The mechanical parts with no reference
number in the exploded views are not supplied.
• Items marked “*” are not stocked since
they are seldom required for routine service.
Some delay should be anticipated
when ordering these items.
Some delay should be anticipated
when ordering these items.
• Color Indication of Appearance Parts
Example :
KNOB, BALANCE (WHITE) ... (RED)
Parts Color Cabinet’s Color
• Accessories are given in the last of this
parts list.
R
R
1
X-3382-067-1 LID ASSY, UPPER (JAPAN)
1
A-3355-874-A LID ASSY, UPPER (CHINESE)
* 2
3-592-350-01 PAPER, VIBRATION PROOF (A) (JAPAN)
3
3-375-114-31 SCREW
4
3-334-565-11 SCREW (B1.7X10), TAPPING
5
3-318-203-82 SCREW (B1.7X7), TAPPING
6
X-3382-066-1 CASE ASSY (JAPAN)
6
A-3355-876-A CASE ASSY (CHINESE)
7
3-224-509-61 LID, BATTERY CASE
8
3-046-359-01 CUSHION (BATTERY LID)
9
4-973-264-01 SCREW (1.7X2.5)
SP101
1-825-127-11 SPEAKER (3.2cm)
4
6
9
1
3
2
7
8
5
not
supplied
SP101
Ver 1.1
• Abbreviation
JAPAN
: Japanese production model.
CHINESE: Chinese production model.
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