Sony ICD-P320 Digital Voice Editor 2 User manual

SERVICE MANUAL
Sony Corporation
Connect Business Division
Published by Sony Techno Create Corporation
US Model
Canadian Model
AEP Model
UK Model
E Model
Chinese Model
IC RECORDER
9-879-994-02
2006B04-1
© 2006. 02
Ver. 1.1 2006. 02
SPECIFICATIONS
ICD-P320
Recording media Built-in flash memory 64 MB,
Monaural recording
Recording time HQ: 7 hours 20 minutes
SP: 19 hours 35 minutes
LP: 32 hours 10 minutes
Frequency range HQ: 260 Hz – 6,800 Hz
SP/LP: 220 Hz – 3,400 Hz
Speaker approx. 2.8 cm (1 1/8 in.) dia.
Power output 250 mW
Input/Output • Earphone jack (minijack) for
8 – 300 ohms ear receiver/headphones
•Microphone jack (minijack, monaural)
Plug in power
Minimum input level 0.6 mV
3 kilohms or lower impedance microphone
•USB connector
Power requirements Two LR03 (sizeAAA) alkaline batteries:
3 V DC
Dimensions (w/h/d) (not incl. projecting parts and controls)
34.6 ×109.5 ×18.0 mm (1 3/8 ×4 3/8 ×23/32 in.)
Mass (incl. batteries) 68g (2.4 oz)
Supplied accessories Operating instructions (for the IC recorder (1)/for
the application software (1))
LR03 (size AAA) alkaline batteries (2)
(US, CND model)
Headphone (1) (E, CH, KR model)
Carrying pouch (1) (E, CH, KR model)
USB connecting cable (1)
Application software (CD-ROM) (1)
Design and specifications are subject to change without
notice.
• Abbreviation
CND: Canadian model
CH : Chinese model
KR : Korean model

2
ICD-P320
TABLE OF CONTENTS
1. GENERAL ...................................................................... 3
2. DISASSEMBLY
2-1. Case (Front) Assy ............................................................... 4
2-2. MAIN Board....................................................................... 5
2-3. USB Board ......................................................................... 5
3. TEST MODE .................................................................. 6
4. DIAGRAMS
4-1. Block Diagram ................................................................... 9
4-2. Printed Wiring Board – MAIN Section – ........................ 11
4-3. Schematic Diagram – MAIN Section (1/2) – .................. 12
4-4. Schematic Diagram – MAIN Section (2/2) – .................. 13
4-5. Printed Wiring Board – USB Section –.......................... 14
4-6. Schematic Diagram – USB Section –.............................. 15
5. EXPLODED VIEWS
5-1. Case (Front) Section ......................................................... 19
5-2. Case (Rear) Section .......................................................... 20
6. ELECTRICAL PARTS LIST ................................... 21
Flexible Circuit Board Repairing
•Keep the temperature of the soldering iron around 270 °C
during repairing.
•Do not touch the soldering iron on the same conductor of the
circuit board (within 3 times).
•Be careful not to apply force on the conductor when soldering
or unsoldering.
Notes on chip component replacement
•Never reuse a disconnected chip component.
•Notice that the minus side of a tantalum capacitor may be
damaged by heat.
UNLEADED SOLDER
Boards requiring use of unleaded solder are printed with the lead-
free mark (LF) indicating the solder contains no lead.
(Caution: Some printed circuit boards may not come printed with
the lead free mark due to their particular size)
: LEAD FREE MARK
Unleaded solder has the following characteristics.
•Unleaded solder melts at a temperature about 40 °C higher
than ordinary solder.
Ordinary soldering irons can be used but the iron tip has to be
applied to the solder joint for a slightly longer time.
Soldering irons using a temperature regulator should be set to
about 350 °C.
Caution: The printed pattern (copper foil) may peel away if
the heated tip is applied for too long, so be careful!
•Strong viscosity
Unleaded solder is more viscou-s (sticky, less prone to flow)
than ordinary solder so use caution not to let solder bridges
occur such as on IC pins, etc.
•Usable with ordinary solder
It is best to use only unleaded solder but unleaded solder may
also be added to ordinary solder. Operating instructiondd

3
ICD-P320
SECTION 1
GENERAL This section is extracted
from instruction manual.
Index to Parts and Controls
Main unit
* There is a tactile dot beside the control to show the
direction to turn up the volume.
** The button has a tactile dot.
MIC (built-in microphone)
(microphone) jack
Display window
DISPLAY/MENU
DIVIDE
x STOP
zX REC (record) /PAUSE
– . (review/fast backward) /
>+
(cue/fast forward) (SELECT)
Speaker
OPR (operation) indicator
ERASE
VOL (volume) control*
HOLD
Nx PLAY/STOP (ENTER)**
i (earphone) jack
Rear
Battery
compartment
Hook for handstrap
(not supplied)
USB connector
Display window
Folder indication
Remaining battery
indicator
Microphone sensitivity
Alarm indicator
Selected message number
REC DATE (recorded date)
indication
REMAIN indicator
Remaining memory
indicator
Recording mode
indication
REC (recording)
indicator
Repeat play indicator
Number of messages in
a folder/Menu
indication/Counter /
Remaining time
indication /Recording
date indication /Current
time indication /
Messages
EASY-S (Easy Search)
indicator

4
ICD-P320
Note : Follow the disassembly procedure in the numerical order given.
2-1. CASE (FRONT) ASSY
SECTION 2
DISASSEMBLY
Note : Disassemble the unit in the order as shown below.
2-1. CASE (FRONT) ASSY
(Page 4)
2-2. MAIN BOARD
(Page 5)
SET
2-3. USB BOARD
(Page 5)
8
2 screw
9 two screws
0 two brackets (speaker)
qa speaker
qs case (front) assy
3 claw
4 claw
6 claw
7 claw
5 two claws
1 battery case lid

5
ICD-P320
2-2. MAIN BOARD
2-3. USB BOARD
2 USB board
1 two screws
3
4
5 MAIN board
S701
CN2001
1 insulating sheet
2 screw

6
ICD-P320
5-3. BEEP Test
To enter the BEEP Test, press the [ERASE] button.
1. Outline of the TEST MODE
The TEST MODE is designed to help verify the set when servicing
it.
TheTEST MODE is onlymenu driven to selectmodes forservicing.
2. Entering and Canceling the TEST MODE
With the power on, turn on the [HOLD] switch while pressing the
x STOP button and the [DISPLAY/MENU] button at the same time.
3. Canceling the TEST MODE
The TEST MODE can be cancelled by turning off the power
(unplugging the dry battery).
4. Menu Key Designation
The menu has the five modes described below. The following keys
are assigned on the initial screen (version display).
5. Key Assignment
From within TEST MODE, the intended menu can be entered by
using the appropriate one key of the following key.
LCD Test (All OnyAll Off) DISPLAY/MENU
BEEP Test (1.3 kHz) ERASE
HQ-DSP LOOP zX REC/PAUSE
SP-DSP LOOP .–
LP-DSP LOOP >+
USB Test Nx PLAY/STOP(ENTER)
REST MENU Test DIVIDE
Initial Display from each mode xSTOP
5-1. Initial Display in TEST MODE
LCD indications (destination information, memory capacity, CPU
FW information and MIC sens) when TEST MODE is entered:
SECTION 3
TEST MODE
5-2. LCD Test
To enter the LCD Test, press the [DISPLAY/MENU] button. The LCD
Test has two modes: All On and All Off First all the indicators are
on. All the indicators are off when the button is pressed again.
Press the x STOP button to return to the initial display (destination
information, memorycapacity, CPU FW informationand MIC sens).
Press the x STOP button to return to the initial screen (memory and
CPU version).
5-4. DSP LOOP
The DSP LOOP modes can be entered selectively by pressing the
appropriate one of the following three keys.
Within the LOOP test menu, “LOOP” is displayed. The sensitivity
character H or L is displayed depending on the position into which
the [HOLD] switch is placed.
The sensitivity H is displayed when [HOLD] switch is in the ON
position. The sensitivity L is displayed when [HOLD] switch is in
the OFF position.
To change the DSP LOOP test mode, press the x STOP button, then
select the zX REC/PAUSE button, .– button, or >+ button.
In a DSP Test mode, to select another DSP Test mode and to select
the other sensitivity, the x STOP button also has to be pressed.
Memory capacity
(128-128 MB)
(64-64 MB)
(32-32 MB)
(16-16 MB)
MIC sens
Destination
information
CPU FW information
H
ALL ON
DISPLAY/MENU
Switch between
the modes.
ABCD
REQ
FM
LP
EASY-S
REC
REMAIN
LOCAL YH MM MHz DS
DATE
SPHQ
LH
ALL OFF
Beep: Frequency 1.3 kHz only
zX REC/PAUSE
.
>
HQ
H
LP
H
SP
H

7
ICD-P320
To change the sensitivity again, press the x STOP button and change
the [HOLD] switch.
In a DSP Test mode, changing the mode and changing the sensitivity
require the x STOP button be pressed.
5-5. USB Test
In this test, the ON/OFF status of VBUS is displayed and the
SUSPEND test is performed.
The Nx PLAY/STOP(ENTER) button is pressed to display the status of
VBUS by “On” or “OFF” indication.
With theVBUS ON, the [HOLD] switch is operated (ON) to perform
the SUSPEND test.
• VBUS Test
with VBUS
Nx PLAY/STOP
(ENTER)
without VBUS
k
Kx STOP
H
with VBUS
Nx PLAY/STOP
(ENTER)
SUSPEND mode
VBUS OFF
k
K
K
j
x STOP
x STOP HOLD
ON
J
H
Sensitivity H
HOLD
ON
OFF
H
Sensitivity L
HOLD
L
5-6. RESET MENU
To enter the RESET MENU test, press the [DIVIDE] button.
When all of the buttons or controls located on the set are operated,
the system shows “Ok” if all of them are normally operated.
An operation of a switch is indicated by the number for verification
in order to make a simple indication.
Note 1: When 10 different operations of the switches are normally
madein anyorder (regardlessofthe order thatpushbuttons
are pressed and the slide switch is set to ON and OFF),
the system shows “Ok”.
Note 2: Clear memory when“ACCESS”is blinking on the display.
(Do this before “Ok” is shown.) To exit from this menu,
the power has to be turned off (battery to be removed).
• SUSPEND Test
With the VBUS ON, turn the [HOLD] switch ON to enter the
SUSPEND mode.
When this mode is cancelled, the VBUS is turned OFF.

8
ICD-P320
• Switches and corresponding LCD indications
Switch Indication
DIVIDE 1
DISPLAY/MENU 2
zX REC/PAUSE 3
Nx PLAY/STOP(ENTER) 4
.–5
xSTOP 6
>+7
ERASE 8
HOLD-OFF 9
HOLD-ON 10
r
rPress DIVIDE button.
Indication after DIVIDE
button is pressed.
Indication after DISPLAY/MENU
button is pressed.
Indication after zX REC/PAUSE
button is pressed.
Indication after HOLD is
set to OFF.
Indication after HOLD is
set to ON.
t If any key is not pressed,
the system waits for the key
to be pressed.
Clear memory when "ACCESS" is
blinking on the display.
The system shows "Ok".
：
：
：
r
r
r
H
1 2
8
10
34
567
DIVIDE
REC/PAUSE
− STOP ＋
PLAY/STOP(ENTER)
DISPLAY/MENU
ERASE
VOL
HOLD
ON
9
OFF

99
ICD-P320
ICD-P320
4-1. BLOCK DIAGRAM
SECTION 4
DIAGRAMS
47 MIP HSSPOOT
XOUT
XIN
RV101
VOL
33
51
52
MIC101
MICROPHONE
J101
(PLUG IN POWER)
Q106
A/D,D/A CONVERTER,DSP
IC101
SYSTEM CONTROL,
USB/LED/LCD DRIVER
IC703
FLASH MEMORY
IC701
48
3
2
–IN
1SHUTDOWN
+IN
BIAS
VO2
5
VO1
SP101
SPEAKER
DSP+3V 34
DSP+3V REG
IC501
VOUT VIN
1
CE
5
EXT
1
FB
MUTE
Q101
SPEAKER AMP
IC102
HEADPHONE AMP
IC2002
DRY BATTERY
SIZE "AAA"
(IEC DESIGNATION LR03)
2PCS, 3V
23 EGPIO11
SI1
XDSPIFRW
SCK1
SO1
XDSPIFACK
XDSPRST
XDSPIFREQ
SCK1
XDSPIFRW
SO1
SI1
XDSPIFACK
XDSPRST
XDSPIFREQ
SCKI
DSPIFRW
SO1
SI1
XDSPIFACK
XDSPRST
DSPIFREQ
EGPIO12
EGPIO13
EGPIO14
EGPIO15
RSTN
BGPIO2
24
25
26
27
54
58
• Signal path
: PB
: REC
100
I
69
61
I
68
15
54
55
56
57
58
59
60
29
I
32
•
41
I
44
7
19
9
16
17
18
8
FLMRB
13
XHPMUTE 12
SP AMPPWR
14
HP AMPPWR
47
BEEP
45
LMUTE
XFLMRE
XFLMCSO
FLMCLE
FLMALE
XFLMWE
XFLMWP
UCOM+3V
UCOM+3V
OPR
(PB) (REC)
R/B
WP
CE
CLE
ALE
WE
RE
XREDLED
XGRNLED
DC+3V
OSC1
OSC2
DSPPWR
29
HOLDHPDET
9
FLMPWR
51
XVBUSDET
46
TRON/CLKOUT
33
D+
34
D–
31
XBATTEN
26
BATT
SEG0
I
SEG31
I/O1
I
I/O4
I/O5
I
I/O8
LIQUID
CRYSTAL
DISPLAY
PANEL
LCD701
BATTERY
DETECT
Q702
D702
OPR
D701
X701
8MHz
1
I
4
COM0
I
COM3
40
41
42
RESET
IC702
39
43
44
52
27 KEYIN0
28 KEYIN1
48 WAKEUP
HOLD
OFF
ON
S701
23
17
18
XI
XO
X702
32.768kHz
20
21
X2001
4.096MHz
XRESET
10
11
WAKE UP
SWITCH
Q703
KEY
MATRIX
S702-709
DSP+3V 34
VOUT VIN
1
CE
DECT
D505
DC/DC
CONVERTER
IC506
UCOM+3V 34
VOUT VIN
1
CE
DC+3V
3
CE
VOLTAGE
DETECT
IC504
SWITCHING
Q506
VOLTAGE
DETECT
Q507,508
SWITCH
Q509
BUFFER
Q704
VBUS
DETECT
Q2002
m
J102
i
4
5
3
2
–IN
1SHUTDOWN
+IN
BIAS VO1
HP MUTE
Q2001
UCOM+3V REG
IC503
FLM+3V 43
VOUT VIN
1
CE
FLM+3V REG
IC2001
DSP+3V REG
IC502
SCKI
SO1
SI1
XDSPRST
DSPIFREQ
DSPIFRW
XDSPIFACK
FLMIO0
I
FLMIO7
DC+3.3V
DC+3.3V
DC+3.3V
CN1001
VBUS
DATA+
DATA–
(USB)
+
–

1010
ICD-P320
ICD-P320
THIS NOTE IS COMMON FOR PRINTED WIRING
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. (p: pF)
50 WV or less are not indicated except for electrolytics
and tantalums.
•All resistors are in Ωand 1/4W 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
():REC
•Voltagesaretaken witha VOM(Input impedance10 MΩ).
Voltage variations may be noted due to normal produc-
tion tolerances.
•Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
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.
Caution:
Pattern face side: Partson thepatternface sideseen 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.
•Waverforms
– MAIN board –
2 IC703 qk (OSC2)
0.5 V/DIV, 0.1 µ sec/DIV
3 IC703 wa (XO)
0.5 V/DIV, 20 µ sec/DIV
0.5 V/DIV, 0.1 µ sec/DIV
1 IC101 ta (XOUT)
1.2 Vp-p
4.096 MHz
8 MHz
2.8 Vp-p
32.768 kHz
3.5 Vp-p
Ref. No. Location
(D505) H-6
D701 E-12
D702 E-12
D2001 E-12
D2002 C-6
D2004 C-5
(D2007) I-6
D2008 A-12
IC101 C-9
IC102 D-10
(IC501) J-6
(IC502) G-6
(IC503) I-6
(IC504) H-3
(IC506) I-6
(IC701) I-8
(IC702) G-10
(IC703) I-10
IC2001 D-8
IC2002 D-11
(Q101) G-11
Q106 B-10
(Q506) H-5
(Q507) I-4
(Q508) I-4
Q509 C-4
(Q702) G-10
Q703 C-8
Q704 C-5
(Q2001) H-12
Q2002 C-5
• Semiconductor
Location (MAIN
Section)
( ): SIDE B

11 11
ICD-P320
ICD-P320
4-2. PRINTED WIRING BOARD — MAIN SECTION — • Refer to page 10 for Semiconductor Location. : Uses unleaded solder.
1
A
B
C
D
E
F
G
H
I
J
23456789101112
13 14
A
USB
BOARD
CN1002
W502
R748
S702
DRY BATTERY
SIZE "AAA"
IEC DESIGNATION
LR03
2PCS, 3V
S705
. –
DIVIDE
zX
REC/PAUSE
z DISPLAY/
MENU
Nx
PLAY/STOP
(ENTER)
x STOP
> +
D2004
R745
TP104
SP101
SPEAKER
RED
BLK
R747
TP508
W501
TP105
IC504
IC506
D505
TP2001
C515
IC502
W7001
IC701
IC703
CN2001
R702 R703
RV101
R714
R707
Q702
R523
C743
R2010
R2011
R721
R2014
R2025
R2012
R754
R706
R126
C124
W7004
W7006
X701
W7005
W7002
W7003
R713
R712
Q101
C2005
R727
R728
S708
R753
C126
S701
S701
HOLD
VOL
S708
ERASE
OFF ON
Q506
R515
R503
Q508
R519
R520
Q507
R521
C505
L501
R518
R516
R517
IC501
C513
C514
C510
C512
IC503
C516
C509 C2003
C701
C702
R726
R2004
C2004
R138
C131
R2015 R2013
R711
R131
IC702
R124
C511
S704
TP703
C518
Q509
Q2002
G D S
Q2001 S D G
G D S
S D G
G D S
G D S
G D S
S D G
B C E
TP502
TP504
Q704
E C B
R513
S707
S709
TP505
TP701
C715
C128 R723
X2001
CN701
R116
RB101
C732
IC101
LCD701
LIQUID CRYSTAL DISPLAY PANEL
C127
C106
R2021 C122
R121
R129
C113
R2019
C2014 C2013
C707
R110
R105
C708
R2001
TP107
FB2001
C101
D2001
C2001
OPR
D701
D702
(REC)
(PB)
W2001
TP106
C119
C2011
R118
R119
C108
R128
IC102
C103
R108
Q106
E C B
R109 C105
R101
R102
FB103
X702
W101
D2008
D2007
TP103
W102
TP102
J101
MIC101
MICROPHONE
m
(PLUG IN POWER)
J102
i
TP101
R722
R120
C2008
IC2001
C731
R709
C716
Q703
R736
C712
R749
C711
S706
R2020
R524
TP507
S703
C742
TP704
R528
TP702
D2002
R512
R511
R526 R525
R750
R751
R752
R733
R710
R734
R510
C504
R757
R701
C109
C110C132 C120
C104
R2024 R2023
FB105
FB106
R130
R2002
C2012
C111
R122 R104
C107
C130
C102
FB101
R106
R107
R135
R137
R724
FB701
FB702
R746
76
100
50
26
1
1
3
5
4
25
75
36 1
51
85
14
IC2002
41
58
100
76
1
25
26
50
51
75
4825
1
2
12
43
4
3
1
2
220
119
4
3
1
2
4
3
54
13
124
MAIN BOARD (SIDE A)
MAIN BOARD (SIDE B)
1-869-159-
(11)
11
1-869-159- (11)
11
12
43
BLK
RED
(Page 14)

1212
ICD-P320
ICD-P320
• Refer to page 10 for Waveform.
4-3. SCHEMATIC DIAGRAM — MAIN BOARD (1/2) — • Refer to page 16 for IC Block Diagrams.
(Page 13)
IC B/D
IC B/D
IC B/D
J101
FB101
RB101
C124
L501
W101
W102
TP101
TP102
R102
FB103
TP103
C107
C130
R110R105
R107
R106
C105
R101
R108
R109
C106
MIC101
IC101
C103
R104
C131
C110
C132
R120
C2008
R2021
RV101
R126
R124 R128
C108
R119
R118
R122 C111
C113
C109
IC102
R121
R129
SP101
IC2002
C2014
R2002 C2012
C2011
C2013
C2005 R138
FB105
FB2001
FB106
R2001
TP106
TP107
C2004
R2004
W2001
D2001
C104
R137
C127
C128
C516
C514
C510
IC504
C505
R521 R503
Q507
Q508
R520
R518
D505
Q506
IC506
TP504
R516
R515
R525 R511
C504
R510
R513
R512
R519 D2004 C518
R526
C511
IC503
C509
R517 C513 C515 C512 R524
TP502
C2001
R131
C126
R2024
R2023
CN2001
J102
TP507TP505
C120
C119
X2001
R116
TP105
TP104
IC501 IC502
W501
W502
TP508
Q106
R130
Q101
Q2001
R135
Q704
Q509
D2008
C102
C122
R2019
C101
D2002
D2007
(Page 15)

13 13
ICD-P320
ICD-P320
(Page 12)
• Refer to page 10 for Waveforms.
4-4. SCHEMATIC DIAGRAM — MAIN BOARD (2/2) — • Refer to page 17 for IC Pin Description.
IC703
CN701
LCD701
R528
R733
R2025
R2012
R2015
R721
R722
R723
R724
S701
R710
R2020
R709
C732
R748R747R746R745
R736
C712 S702 S703 S704 S705
C731R757
C711
R749 R750 R751 R752
S706 S707 S708 S709
R734
R714
R707
R706
C702
TP704
TP703
TP702
R711 R712
R713
C708
C707
C743
C716
R703 R702
C715
IC2001
R523
C701
IC702
W7001
W7002
W7003
W7004
W7005
W7006
R727 R726
R728
C2003
D701
D702
TP701
TP2001
R701
R2014
X702
X701
Q702 Q2002
Q703
R2010
R2011
FB701
FB702
IC701
R2013
R754
R753
C742

1414
ICD-P320
ICD-P320
4-5. PRINTED WIRING BOARD — USB SECTION — : Uses unleaded solder.
1
A
B
C
D
E
F
G
2345678910111213
A
MAIN
BOARD
CN2001
USB BOARD (SIDE A) USB BOARD (SIDE B)
CN1002
220
1
1
8
9
6
7
5
19
W1001
R1011
TP1001
C1008
R1030
R1003
R1004
R1010
CN1001
(USB)
1-869-170- (11)
R1031
R1019
11
1-869-170- (11)
11
(Page 11)

15
ICD-P320
4-6. SCHEMATIC DIAGRAM — USB SECTION —
(Page 12)
R1010
R1011
R1019
R1003
R1030
R1031
R1004
C1008
TP1001
CN1001
CN1002

16
ICD-P320
• IC Block Diagrams
IC506 XC9105D091MR (MAIN Board (1/2))
IC102 MM3111AWLE (MAIN Board (1/2))
IC2002 MM3111AWLE (MAIN Board (1/2))
5
BUFFER
DRIVER
PHASE
COMPENSATION
PHASE
COMPARATOR RAMP WAVE
GENERATOR,
OSC
4
CURRENT
RIPPLE DETED
AND FB
VREF WITH
SOFT START,
CE
PWM/PFM
CONTROLER
ERROR
AMP
1 2 3
FB VDD CE
EXT GND
1
BIAS
3
4
2
8
6
5
7
SHUTDOWN
BYPASS
+IN
-IN
VO2
GND
VDD
VO1

17
ICD-P320
• IC Pin Description
IC703 MN101C93KSB (SYSTEM CONTROL, USB/LED/LCD DRIVER) (MAIN BOARD (2/2))
Pin No. Pin Name I/O Pin Description
1 to 4 COM0 to 3 O LCD common 0 to 3 signal output
5 to 7 VLC3 to 1 I LCD VLC 3 to 1 signal input
8NCINot used. (Open)
9FLMPWR O Flash memory power ON signal output (H: ON, L: OFF)
10 XREDLED O Red LED (REC) ON/OFF signal output (Open drain)
11 XGRNLED O Green LED (PB) ON/OFF signal output (Open drain)
12 HPMUTE O Headphone muting signal output (H: Headphone muting)
13 SPAMPPWR O Speaker power amplifier power ON signal output (H: ON, L: OFF)
14 HPAMPPWR O Headphone power amplifier power ON signal output (H: ON, L: OFF)
15 DSPPWR O DSP power ON signal output (H: ON, L: OFF)
16 VSS — Ground
17 OSC1 I Main clock input (8 MHz)
18 OSC2 O Main clock output (8 MHz)
19 VDD — Power supply pin (+3.1 V)
20 XI I Sub clock input (32.768 kHz)
21 XO O Sub clock output (32.768 kHz)
22 NMOD I Connect to VSS.
23 XRESET I CPU reset signal input
24 DMOD I Connect to VDD.
25 VREF — Power supply pin (+) for A/D converter. (+3.1 V)
26 BATT I Battery level A/D signal input
27 KEYIN0 I Key 0 A/D signal input
28 KEYIN1 I Key 1 A/D signal input
29 HOLDHPDET I HOLD switch/headphone detection signal input
30 SHIMUKE I Destination setting pin
31 XBATTEN O Battery level sense enable signal output
32 VDD — Power supply pin (+3.1 V)
33 D+ I/O USB D+ signal input/output
34 D– I/O USB D– signal input/output
35 VSS — Ground
36 FM_SCK O FM tuner serial clock signal output (Not used in this set)
37 FM_SDAO(TX) O FM tuner serial data signal output (Not used in this set)
38 FM_SDAI(RX) I FM tuner serial data signal input (Not used in this set)
39 SCK1(DSP) O DSP I/F serial clock signal output
40 SO1(DSP) O DSP I/F serial data signal output
41 SI1(DSP) I DSP I/F serial data signal input
42 XDSPRST O DSP reset signal output (L: Reset)
43 DSPIFREQ O DSP I/F request signal output
44 DSPIFRW O DSP I/F read/write signal output
45 LMUTE O Audio line muting signal output
46 TRON/CLKOUT O USB TRON signal output
47 BEEP O Beep signal output (PWM: 16 bit timer)
48 WAKEUP I Wakeup interruption signal input
49 FM_LCLDX O FM Local/DX ON signal output (H: Local, L: DX) (Not used in this set)
50 FM_SCE O FM serial chip select signal output (L: Enable) (Not used in this set)
51 XVBUSDET I VBUS detection signal input (L: VBUS ON)
52 XDSPIFACK I DSP acknowledge interruption signal input
53 FM_PWR O FM tuner power ON signal output (H: ON, L: OFF) (Not used in this set)
54 FLMRB I Flash memory ready/busy signal input
55 XFLMWP O Flash memory write protect signal output
56 XFLMCS0 O Flash memory chip select signal output

18
ICD-P320
Pin No. Pin Name I/O Pin Description
57 FLMCLE O Flash memory command latch enable signal output
58 FLMALE O Flash memory address latch enable signal output
59 XFLMWE O Flash memory write enable clock signal output
60 XFLMRE O Flash memory read enable clock signal output
61 to 68 FLMIO0 to 7 I/O Flash memory address/data bit0 to 7 signal input/output
69 to 100 SEG31 to 0 O LCD segment 31 to 0 signal output

19
ICD-P320
SECTION 5
EXPLODED VIEWS
NOTE:
•-XX and -X mean standardized parts, so
they may have some difference from the
original one.
•Items marked “*” are not stocked since
they are seldom required for routine service.
Some delay should be anticipated when
ordering these items.
•The mechanical parts with no reference
number in the exploded views are not supplied.
Ref. No. Part No. Description Remark
5-1. CASE (FRONT) SECTION
Ref. No. Part No. Description Remark
13-254-083-01 SCREW
23-254-003-01 SCREW
32-634-641-01 BRACKET (SPEAKER)
4X-2103-430-1 CASE (FRONT) SUB ASSY (P)
52-633-879-02 WINDOW (LED)
62-633-875-02 BUTTON (FRONT)
SP101 1-826-097-41 SPEAKER (2.8cm)
1
2
3
5
4
6
SP101

20
ICD-P320
5-2. CASE (REAR) SECTION
Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark
51 2-633-874-01 BUTTON (SIDE)
52 2-633-876-01 TERMINAL (+.–), BATTERY
53 2-633-870-01 KNOB (HOLD)
54 X-2103-428-2 CASE (REAR) SUB ASSY (P)
55 2-177-065-01 CUSHION (BATTERY TERMINAL)
56 2-634-640-01 LID (CONNECTOR)
57 A-1158-387-A USB BOARD, COMPLETE
58 2-633-877-01 TERMINAL (+), BATTERY
59 2-590-020-01 SHEET, INSULATING
60 2-633-878-01 TERMINAL (–), BATTERY
61 3-251-410-02 SHEET, INSULATING
62 2-661-298-01 SPACER (LCD-P)
63 2-633-872-01 HOLDER (LCD)
64 1-780-296-21 CONDUCTIVE BOARD, CONNECTION
65 A-1158-384-A MAIN BOARD, COMPLETE
66 2-653-251-01 SHEET
67 3-254-014-01 SCREW
LCD701 1-802-035-11 DISPLAY PANEL, LIQUID CRYSTAL
MIC101 1-542-650-11 MICROPHONE, ELECTRET CONDENSER
51
MIC101
LCD701
52
53
54
55
55
59
58
60
65 62
63
64
66
67
67
56
57
61
Ver. 1.1