Ic Block Diagram - Sanyo ICR-B100 Service Manual

Digital voice recorder
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IC BLOCK DIAGRAM

The figure which isn't mentioned please watch a schematic diagram.
IC401 UPD703017 (MICRO COMPUTER)
No.
Pin Name
I/O
1 LCD DATA
I/O LCD Driver IC data output
2 LCD CLK
I/O LCD Driver IC clock output
3 P CON
O
Power control (Power ON=high)
4 A MUTE1
O
Audio mute (Mute=high)
5 A MUTE2
O
Audio mute (Mute=high)
6 VDD
O
Power supply
7 VSS
O
GND
8 DAC PWR
O
DAC Power control (Power OFF=LOW)
9 DD PWR
O
DD Converter power control (Power ON=high)
10 PULL UP
O
PULL UP Resister power control (Power ON=high)
11 AMP PWR
O
AMP Circuit power control (Power ON=high)
12 MCLK IN
I
MCLK Count input
13 ADC POW
O
ADC Power control (Power OFF=LOW)
14 ADC CLK
O
A/D,D/A Converter master lock output
15 DAC LRCK
I/O ADC/DAC LRCK output
16 BEEP
O
Beap signal output
17 LCD RESET
I/O LCD Controller Reset output
18 IC/VPP
General action =LOW/FLASH time = high
19 USB 0
I/O Data input/output
20 USB 1
I/O Data input/output
21 USB 2
I/O Data input/output
22 USB 3
I/O Data input/output
23 USB 4
I/O Data input/output
24 USB 5
I/O Data input/output
25 USB 6
I/O Data input/output
26 USB 7
I/O Data input/output
27 USB WR
O
Data lead select (Lead=LOW)
28 USB RD
O
Data lead select (Lead=LOW)
29 USB STP
I
Device detector (Permission=HIGH)
30 USB CE
O
Chip enable (Enable=LOW)
31 RESET
I
Reset signal
32 XT1
I
33 XT2
34 VDD
35 X2
Main oscillation (Ceramic 16.384 MHz)
36 X1
I
Main oscillation (Ceramic 16.384 MHz)
37 VSS
GND
38 CLKOUT
39
I/O
40 WPB
O
Write protect
41 R/B
I
Ready/Busy check (Busy=low)
42 WEB
O
Write enable
43 REB
O
Lead enable
44 CEB
O
Chip enable
45 ALE
O
Address ratch
46 CLE
O
Command ratch
47 I O0
I/O Smart media (input/output data)
48 I O1
I/O Smart media (input/output data)
49 I O2
I/O Smart media (input/output data)
50 I O3
I/O Smart media (input/output data)
Function
- 7 -
No.
Pin Name
I/O
51 I O4
I/O Smart media (input/output data)
52 I O5
I/O Smart media (input/output data)
53 I O6
I/O Smart media (input/output data)
54 I O7
I/O Smart media (input/output data)
55 BVDD
56 BVSS
57 USB ON
I
USB ON/OFF check (ON=High)
58 AC IN
I
AC Adapter detect (AC have=LOW)
59 MIC IN
I
Detect the external mic presence (There is a Mic=LOW)
60 SSFDC SW
I
SmartMedia insert switch
61 SSFDC IN
I
Detect the SmartMedia presence (Yes=LOW)
62 SSFDC 3V
I
Detect the 3.3V SmartMedia (3.3V=High)
63 SSFDC REC
I
Check write on a SmartMedia (Ability=High)
64 R/B
I/O
65 MIC SEL1
O
Mic change control
66 MIC SEL 2
O
Mic change control
67 MIC SEL 3
O
Mic change control
68 MIC SENS1
O
Mic sensitivity control (1)
69 MIC SENS2
O
Mic sensitivity control (2)
70 SEL 24H
I
Select the 12H/24H change (12H=LOW)
71 AVDD
72 AVSS
73 AVREF
74 KEY0
I
Key input
75 KEY1
I
Key input
76 FOOT IN
I
FOOT SW input
77 BATT IN
I
Battery residual quantity check
78 HOLD SW
I
Hold SW input
79 FAST SW
I
High speed listening (ON=LOW)
80 SLOW SW
I
Low speed listening (ON=LOW)
81 VAS IN
I
Sound signal level detect
82 LEVEL IN
I
Volume/VAS sensitivity level input
83
I
84 CASE SW
I
Battery lid detect switch
85
I
86
O
87
O
88 USB STOP
O
89
O
90 ENROL
I
Enrol output permission (Permission=LOW)
91
O
92
O
93 LCD CS
I/O LCD Driver IC chip select output
94 RTC DATA
I/O Real time clock IC data output
95 LCD RS
I/O LCD Driver IC resister select output
96 RTC CLK
I/O Real time clock IC clock output
97 DAC IN
I
ADC serial data input
98 DAC OUT
O
DAC serial data output
99 DAC CLK
O
ADC/DAC clock output
100
O
Function

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