Sony ICD-B200RS Service Manual ▷ View online
17
ICD-B200RS
• IC Block Diagrams
– AUDIO Board –
IC104 MM3111AWLE
1
BIAS
3
4
2
8
6
5
7
SHUTDOWN
BYPASS
+IN
-IN
VO2
GND
VDD
VO1
1
2
3
4
8
7
6
5
REG
GND
V+
OUT
IN-
NOISE
REG
STBY
IN+
IC102 NJM2781RB1
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
– MAIN Board –
IC704 RS5C348A-E2-FB
18
ICD-B200RS
• IC Pin Function Description
IC703 µPD780308GC-A77-8EU (MEMORY CONTROL, SYSTEM CONTROL) (MAIN BOARD)
IC703 µPD780308GC-A77-8EU (MEMORY CONTROL, SYSTEM CONTROL) (MAIN BOARD)
Pin No.
Pin Name
I/O
Description
1,2
KEY1, KEY2
I
Key signal input
3
DC-IN
I
Not used. (Open)
4
HOLD
I
Hold switch signal input
5
AMPPOW
O
Power down control signal output to the power amplifier IC (IC104)
6
AVREFON
I
A/D reference voltage input
7
XFMCE
O
Chip enable signal output to the flash memory IC (IC701)
8
VDD0
—
Power supply pin (+3.3 V)
9
AVREF
—
A/D reference voltage
10
XFMWE
O
Write enable signal output to the flash memory IC (IC701)
11
XFMALE
O
ALE signal output to the flash memory IC (IC701)
12
VSS1
—
Ground pin
13
XFMR/B
I
Ready/Busy signal input from the flash memory IC (IC701)
14
XFMCLE
O
CLE signal output to the flash memory IC (IC701)
15
HPJACK
O
Headphone detect signal input Not used in this set. (Open)
16
HPMUTE
O
Headphones mute switch
17
XFMRE
O
Read enable signal output to the flash memory IC (IC701)
18
KEY3
I
Key signal input
19
XFMWP
O
WP signal output to the flash memory IC (IC701)
20
HPAMPPOW
O
Power down control signal output to the headphones amplifier (Open)
21
BEEP
O
Beep signal output (2.4 kHz)
22
MICSENSE
O
Microphone sensitivity select (H: Conference, L: Dictation)
23 to 26
COM0 to COM3
O
LCD common signal output
27
BIAS
O
Connect to VDD. (LCD bias)
28 to 30
VLC0 to VLC2
—
LCD drive power supply pin
31
VSS0
—
Ground pin
32 to 63
S0 to S31
O
LCD segment signal output
64
XTEST
I
Test pin
65
DSPPOW
O
Digital signal processor registor control I/F enable signal output
66
LEDREC
O
OPR (REC) LED (D701: red) ON/OFF signal output
67
LEDPB
O
OPR (PLAY) LED (D701: green) ON/OFF signal output
68
RTCCE
O
Real time clock chip enable signal output
69
XDSPIFRQ
O
I/F request signal output to the DSP IC (IC101)
70
DSPIFRW
O
I/F data read/write signal output to the DSP IC (IC101)
71
XDSPRST
O
Reset signal output to the A/D, D/A converter, DSP IC (IC101)
72
SI0
I
I/F data signal input to the DSP IC (IC101)
73
SO0
O
I/F data signal output to the DSP IC (IC101)
74
SCK0
O
I/F signal clock output to the DSP IC (IC101)
75
RTCDI
I
Real time clock data signal input
76
RTCDO
O
Real time clock data and digital signal processor registor control data output
77
RTCCLK
O
Real time clock I/F data and digital signal processor registor control clock output
78
IC
—
Connect to ground.
79
X2
O
System clock output (5 MHz)
80
X1
I
System clock input (5 MHz)
81
VDD1
—
Power supply pin
82
XT1
—
Sub clock input (32.768 kHz)
83
XT2
—
Not used in this set. (Open)
84
XRESET
I
Reset signal input
19
ICD-B200RS
Pin No.
Pin Name
I/O
Description
85
XDCINDET
I
Not used. (Open)
86
WAKEUP
I
WAKE UP signal input
87
RTCINT
I
Real time clock (2 Hz) signal input
88
FLMPOW
O
Flash memory power ON/OFF signal output
89
DSPIFACK
I
I/F acknowledge signal input to the DSP IC (IC101)
90
LMUTE
O
Line mute ON/OFF signal output
91 to 98
FMI01 to FMI07
I/O
Data bus signal input/output
99
AVSS
—
Ground pin
100
BATT
I
Power supply voltage detection signal input
20
ICD-B200RS
SECTION 5
EXPLODED VIEWS
NOTE:
•
-XX and -X mean standardized parts, so they
may have some difference from the original
one.
may have some difference from the original
one.
•
The mechanical parts with no reference
number in the exploded views are not supplied.
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.
are seldom required for routine service.
Some delay should be anticipated when
ordering these items.
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
1
A-1084-535-A CASE (FRONT) ASSY
2
2-050-738-11 BUTTON (FRONT)
3
3-254-083-01 SCREW
4
2-050-730-31 LID, BATTERY CASE
5
A-1060-548-A SWITCH BOARD, COMPLETE
6
A-1084-532-A MAIN BOARD, COMPLETE
7
1-780-155-21 CONDUCTIVE BOARD, CONNECTION
8
2-050-736-01 SPACER (LCD)
9
2-050-735-02 HOLDER, LCD
10
3-254-014-01 SCREW
11
2-584-596-01 CUSHION (BATTERY CASE LID)
12
2-581-505-01 SPACER (SPEAKER)
LCD701 1-805-647-11 DISPLAY PANEL, LIQUID CRYSTAL
5-1.
MAIN BOARD SECTION
1
2
3
10
4
5
6
7
8
9
LCD701
11
12
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