Read Sony ICD-B500 Service Manual online
9
9
ICD-B500
ICD-B500
4-1. BLOCK DIAGRAM
SECTION 4
DIAGRAMS
47 MIP
HSSPOOT
RV101
VOL
33
MIC101
HOLD
OFF
ON
Q106
AMP
J102
i
A/D,D/A CONVERTER,DSP
IC101
MEMORY CONTROL,
SYSTEM CONTROL
IC703
FLASH MEMORY
IC701
4
8
5
3
2
–IN
1 SHUTDOWN
+IN
BIAS
VO1
VO2
SP101
SPEAKER
DSP+3V
5
4
DSP+3V REG
IC501
VOUT
VIN
1
CE
5
EXT
1
FB
MUTE
Q101
SPEAKER AMP
IC102
MUTE
Q102
DRY BATTERY
SIZE "AAA"
(IEC DESIGNATION IR03)
2PCS,3V
S701
23 EGPIO11
SI1
XDSPIFRW
SCK1
SO1
XDSPIFACK
XDSPRST
XDSPIFACK
XDSPRST
XDSPIFREQ
SCK1
XDSPIFRW
SO1
SI1
SI1
XDSPIFACK
XDSPRST
XDSPIFREQ
XDSPIFREQ
SCKI
DSPCLKOUT
DSPIFRW
SO1
SI1
SI1
XDSPIFACK
XDSPRST
DSPIFREQ
DSPIFREQ
EGPIO12
EGPIO13
EGPIO14
EGPIO14
EGPIO15
RSTN
RSTN
BGPIO2
24
25
26
27
54
58
52 XIN
• Signal path
: PB
: REC
100
I
69
61
I
68
15
54
55
56
56
57
58
59
60
29
I
32
•
41
I
44
7
19
9
16
17
18
8
FLMRB
13
XHPMUTE 12
AMPPWR
47
BEEP
45
LMUTE
XFLMRE
XFLMCSO
FLMCLE
FLMALE
XFLMWE
XFLMWP
UCOM+3V
UCOM+3V
OPR
R/B
WP
CE
CLE
ALE
ALE
WE
RE
XREDLED
XGRNLED
DC+3V
ODC1
OSC2
DSPDPWR
35
BATTEN(VSS)
26
BATT
SEG0
I
SEG31
I/O1
I
I/O4
I/O5
I
I/O8
LIQUID
CRYSTAL
DISPLAY
PANEL
LCD701
BATTERY
CHECK
Q702
D702
OPR
D701
X701
8MHz
1
I
4
COM0
I
COM3
40
41
41
42
RESET
IC702
46
39
43
44
52
27 KEYIN0
28 KEYIN1
48 WAKEUP
49 HOLDSW
23
17
18
XI
XO
X702
32.768MHz
20
21
XRESET
10
11
11
WAKE UP
SWITCH
Q703
KEY
MATRIX
S702-709
DSP+3V
3
4
VOUT
VIN
1
CE
DECT
D505
D505
L501
DC/DC
CONVERTER
IC506
UCOM+3V
3
4
VOUT
VIN
1
CE
DC+3V
3
CE
BATTERY
VOLTAGE
VOLTAGE
DETECT
IC504
SWITCHING
Q506
VOLAGE
DETECT
Q507,508
m
UCOM+3V REG
IC503
DSP+3V REG
IC502
DSPCLKOUT
SCKI
SO1
SO1
SI1
XDSPRST
DSPIFREQ
DSPIFRW
XDSPIFACK
FLMIO0
I
FLMIO7
DC+3.3V
DC+3.3V
J101
(PLUG IN POWER)
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