Sony ICD-S7 Service Manual

ICD-S7

Chinese Model

Tourist Model

SERVICE MANUAL

IC RECORDER

SPECIFICATIONS

Ver 1.0 2002. 11

Sony Corporation

Personal Audio Company

Published by Sony Engineering Corporation

9-874-221-01

2002K1600-1

© 2002.11

Recording media Built-in flash memory 64MB, Monaural recording
Recording time SP: 532 minutes, LP: 1,418 minutes
Speaker approx. 15 mm (

19

/32 in.) dia.
Power output 80 mW
Input/Output • EAR/MIC (Earphone/microphone) jack (minijack,

monaural)
–

output

for 16 - 100 ohms earphone/headphones

– input for plug in power, minimum input level

0.6 mV, 3 kilohms or lower impedance microphone

• USB connector
Playback speed control +100% to -50% (DPC)
Power requirements Two LR03 (size AAA) alkaline batteries: 3 V DC
Dimensions (w/h/d)

(not incl. projecting parts and controls)

28.0 ⋅ 116.0 ⋅ 13.8 mm (1 1/8⋅ 4 5/8⋅9/16in.)
Mass (incl. batteries) 65 g (2.29 oz)
Supplied accessories Earphone ⋅ 1

USB Connecting cable ⋅ 1
Application Software (CD-ROM) ⋅ 1
LR03 (size AAA) alkaline battery ⋅ 2
Handstrap x 1

Optional accessories Stereo ear receiver MDR-ED228LP, MDR-E818LP/

Active speaker SRS-T77/Electret condenser
microphone ECM-DM5P, ECM-T15, ECM-T115,
ECM-Z60 (zoom microphone)/Connecting cable RK­G64/AC power adaptor AC-E30HG

Your dealer may not handle some of the above listed optional accessories. Please
ask the dealer for detailed information.

Design and specifications are subject to change without notice.

2

ICD-S7

TABLE OF CONTENTS

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.

* Replacement of IC6201, IC7102 used in this set requires a special

tool.

• The voltage and waveform of CSP (chip size package) cannot be
measured, because its lead layout is different from that of conven­tional IC.

• Lead layouts

Unleaded solder

Boards requiring use of unleaded solder are printed with the lead­free 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 viscous (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.

surface

Lead layout of

conventional IC

CSP (chip size package)

1. GENERAL ·········································································· 3

2. DISASSEMBLY

2-1. Cover (jack) ·································································· 4
2-2. Case··············································································· 5
2-3. Ornamental Belt, SW Board ········································· 5
2-4. AUDIO Board ······························································· 6
2-5. Cover (Chassis), Microphone Unit (MIC3201) ············6
2-6. MAIN Board, Liquid crysal,

Display Panel (LCD3201) ············································ 7

3. TEST MODE ······································································ 8

4. DIAGRAMS ······································································ 10

4-1. Block Diagrams

– Main Section-1 –······················································ 11
– Main Section-2 –······················································ 12

– Panel/Key Section – ················································· 13
4-2. Printed Wiring Board – AUDIO Board – ···················· 14
4-3. Schematic Diagram – AUDIO Board (1/2) –·············· 15
4-4. Schematic Diagram – AUDIO Board (2/2) –·············· 16
4-5. Printed Wiring Board – MAIN Board – ····················· 17
4-6. Schematic Diagram – MAIN Board (1/3) – ··············· 18
4-7. Schematic Diagram – MAIN Board (2/3) – ··············· 19
4-8. Schematic Diagram – MAIN Board (3/3) – ··············· 20
4-9. Printed Wiring Board – SW Board – ·························· 21
4-10. Schematic Diagram – SW Board – ····························· 22
4-11. IC Block Diagrams ····················································· 23
4-12. IC Pin Function Descriptions ······································ 25

5. EXPLODED VIEWS

5-1. Case Section································································ 31
5-2. Chassis Section ··························································· 32

6. ELECTRICAL PARTS LIST ······································· 33

3

ICD-S7

SECTION 1

GENERAL

This section is extracted from
instruction manual.

Step 2: Setting the Clock

You need to set the clock to use the alarm function or record the date and
time.
Clock setting display appears when you insert batteries for the first time,
or when you insert batteries after the unit has been without batteries for a
certain period of time. In this case, proceed from step 4.

1

Turn the jog lever toward
MENU.

The menu mode will be displayed in
the display window.

2

Press the jog lever up or down
(>/.) to select “SET DATE”.

3

Press the jog lever (x•B).

The date and time setting window is
displayed. The year digits will flash.

4

Set the date.

1 Press the jog lever up or down

(>/.) to select the digits of
the year.

Jog lever

Press the
center (x•B).

Press up (>).

Press down (.).

Turn
toward
MENU.

2 Press the jog lever (x•B).

The month digits will flash.

3 Set the month and day in

sequence, then press the jog lever
(x•B).
The hour digits will flash.

5

Set the time.

1 Press the jog lever up or down

(>/.) to select the digits of
the hour.

2 Press the jog lever (x•B).

The minute digits will flash.

3 Set the minute.
4 Press the jog lever (x•B).

The menu mode will be

displayed again.

Note

If you do not press the jog lever
(x•B) for more than one minute,
the clock setting mode is cancelled
and the window will return to
normal display.

6

Turn the jog lever toward
MENU.

The window will return to normal
display.

1 If the unit is left unused for more than 3 seconds in the stop mode after the

clock is set, the display will show the current time (page 25).

v

1 Built-in microphone (11)
2 OPR (operation) indicator

(11, 18)

3 DPC ON/OFF switch (28)
4 INDEX/

(bookmark)

button (30, 37)

5 Display window (22)
6 A-B

(repeat)/ (priority)

button (31, 42)

7 ERASE button (34)
8 EAR/MIC (earphone/

microphone) jack (13, 15)

Index to Parts and Controls

9 zREC (record) /REC

PAUSE button (11, 32)

0 xSTOP button (12, 19)
qa Jog lever

FOLDER/MENU/

.(review/fast backward)/
> (cue/fast forward)/
x• B (play/stop•enter)

qs VOL (volume) +/– buttons

(18)

Refer to the pages indicated in parentheses for details.

Front Rear

qd HOLD switch (27, 49)
qf Speaker
qg Battery compartment (6)
qh Clip*
qj USB connector (55)
qk DC IN 3V jack (6)
ql Slit for the supplied

handstrap

*Notes

•To prevent the clip from breaking,
avoid hooking it on thick fabric,
such as a pocket of a heavy coat.

•When bending down or running
with the unit clipped on your
pocket, be careful not to drop the
unit.

Index to Parts and Controls (continued)

4

ICD-S7

SECTION 2

DISASSEMBLY

Note : Follow the disassembly procedure in the numerical order given.

2-1. Cover (jack)

Note : Disassemble the unit in the order as shown below.

COVER(JACK)

(Page 4)

AUDIO BOARD

(Page 6)

ORNAMENTAL BELT, SW BOARD

(Page 5)

CASE

(Page 5)

COVER (CHASSIS),

MICROPHONE UNIT(MIC3201)

(Page 6)

MAIN BOARD,

LIQUID CRYSTAL

DISPLAY PANEL (LCD3201)

(Page 7)

SET

4

Screw (M 1.7 × 3)

6

Screw

(M 1.7

×

3)

2

Screw (M 1.4)

1

Battery lid

3

Lid (connector)

5

Cover (jack)

5

ICD-S7

2-2. Case

1

Sliding the chassis up to

the position of Connector.

3

Remove the chassis by sliding.

2

Connector

(CN7104)

Note : When assembling the chassis,

insert flexible board

.

2-3. Ornamental Belt, SW Board

2

Remove the ornamental belt

in the direction of the arrow.

Claws

3

SW board

(Cautions five claws)

1

Remove the knob (HOLD) .

6

ICD-S7

2-4. AUDIO Board

2

Speaker (1.5cm) (SP3201)

Claw

Chassis

Claw

Claw

1

Cover (chassis)

(Cautions three claws

)

3

Microphone unit (MIC3201)

2-5. Cover (Chassis), Microphone Unit (MIC3201)

7

AUDIO board

AUDIO board

4

Holder (LCD)

Two claws

Two claws

6

Turn over the AUDIO board

and
remove soldering (two points)
from Microphone cable.

3

Remove soldering
(two points)
from speaker cable.

2

Connector

(CAN7201)

5

Liquid crystal
display panel
(LCD3201)

1

Screw (M1.7 )

7

ICD-S7

2-6. MAIN Board, Liquid Crystal, Display Panel (LCD3201)

8

MAIN board

3

Chassis

6

Terminal (-), battery

5

Terminal (+), battery

Cap (terminal)

4

Remove soldering (two points).

2

Remove the slot of a chassis.

7

Liquid crystal display panel

(LCD3201)

1

Screw (M1.7)

8

ICD-S7

SECTION 3

TEST MODE

[Setting Method of the Test Mode]

There are two different methods to enter the test mode:
(1)To enter the test mode, turn on the HOLD switch while pressing

the STOP key and VOLUME+ key at the same time with the
power on.

(2) While pressing the VOLUME- key, turn on the power in state

that the test land (TP7101 (side B) or SL7101 (side A)) on the
main board is shorted to GND.

[Exiting Method of the Test Mode]

Exit the test mode by turning off the power.

[Initial Status of the Test Mode]

When the test mode is set, the LCD display appears as shown below.

LCD display

102 3C 01 J

Destination information
LPEC version
DSP version
CPU version

102 3C 01 J

LCD TEST

. >

SET AREA

. >

AUDIO TEST

. >

SLEEP TEST

. >

BEEP TEST

. >

SIO TEST

. >

KEY TEST

.

>

.

>

RESET MENU

> .

READ DATA

> .

DC JACK

> .

USB TEST

> .

LED TEST

> .

BATT TEST

> .

Initial status of test mode
Version display
Destination setting information display

END

TEST MODE

START

TEST MODE

[Operation in the Test Mode]

After entering the test mode, you can move within the test menu by
pressing the . / > key. You can move to the submenu by
pressing the x•B key. Then each test mode can be executed.

1. LCD test

• LCD is tested of all light-on and all light-off.

• Use the . / > key to adjust the contrast of the LCD. The
setting value is written in the EEPROM with the x•B key. If the
LCD test ends with OK, “**** OK ****” is displayed. If the
LCD test ends with NG, “****NG****” is displayed.
The default value is “0x12”.

x•B

LCD TEST

LCD ALL

LCD OFF
LCD CHECK
LCD ALL

LCD CHECK

:

:

STOP

STOP STOPSTOP

(select), (set)

.

>

x•B

LCD OFF

2. Setting destination

• NO destination information.

3. Audio test

Perform the through-playback and sine wave output.

• Contents of the submenu

ADA SP: AD/DA-through-SP mode
ADA LP: AD/DA-through-LP mode
DSP SP: DSP-through-SP mode
DSP LP: DSP-through-LP mode
1 kHz SIN: 1 kHz sine wave output mode

• Select the microphone sensitivity with the HOLD switch.

ON: High sensitivity OFF: Low sensitivity

•The VOR detection operation can be checked by the LED.

Sound: The red LED is turned on. No sound: The red LED is

turned off.

• MUTE can be set to “ON” or “OFF” with the ERASE key.

•The sound volume can be adjusted with the VOLUME+ key or
VOLUME- key during the audio test except the MUTE mode.

•The microphone sensitivity, sound volume and MUTE (on/off)
are displayed on the bottom of the LCD.

x•B

SET AREA

JAPAN USB

STOP

x•B

:

:

DSP SP
ADA LP
ADA SP
1K SIN
DSP LP

AUDIO TEST DSP LP

DSP LP H 10 DSP SP H 10 ADA LP H 10

(select), (set)

.

>

x•B

STOP STOP STOP

STOP

[Flow Chart of the Test Mode]

9

ICD-S7

4. Sleep test

•Pressing the x•B key causes the set to enter the sleep state.

•When the HOLD switch is ON, the LCD is turned off. When
OFF, the LCD is turned on.

•Press any keys to exit the sleep state.

5. Beep test

• Beep sound of 1.3 kHz or 2 kHz is output.

6. SIO test

•Perform the connection test of the RTC, EEPROM and serial to
parallel conversion IC.

• As to the test result, if all of the connection test are OK,
“****OK****” is displayed. If the connection test of the RTC is
NG, “**RTCNG**” is displayed. If the EEPROM is NG,
“**EEPNG**” is displayed.

7. Key entry test

•When the any key is pressed, the entry key and the A/D converted
value (hexadecimal) of the two channel keys are displayed.

•When the STOP key is pressed, the A/D value of the key is
displayed while the key is depressed. When the key is released,
the screen returns to the test menu.

8. Battery remaining power test

•The detected A/D value (hexadecimal) of the battery remaining
power is displayed.

9. LED/EL test

• LED (red and green) and EL are all turned on.

any keys any keys

SLEEP TEST

SLEEP IN

LCD OFF

(with HOLD OFF status)

x•B

(with HOLD ON status)

x•B

x•B

BEEP TEST

1.3K BEEP

2.0K BEEP

1.3K BEEP

1.3K BEEP

2.0K BEEP

:

:

(set)

x•B

(select),

.

>

STOP

STOP STOP

x•B

SIO TEST

SIO OK

STOP

x•B

KEY TEST

0-FF 1-FF

STOP

x•B

BATT TEST

STOP

10. USB test

• When the menu starts the USB self-check, either presence or
absence of the Vbus is judged.
(Vbus is present: “VBUS: ON”, Vbus is absent: “VBUS: OFF”)

•The USB driver always works regardless of presence or absence
of the USB signal only when Vbus is available during the USB
test. At this time, turning on HOLD causes the set to move to the
suspend state. Turning off the Vbus causes the set to return to the
test menu.

11. DC-IN test

LCD : Detection result of external DC power supply is display is

displayed of LCD.

12. DATA READ test (not used)

Not use for test command design check or verification.

13. Rest menu

•Pressing the x• B key causes the set to enter the menu
initialization standby state.

•When the following keys are all entered and the x•B key is
pressed, the initialization is executed. At the same time, the
Wak eUp signal is checked, too.

Check keys: VOLUME+ , VOLUME– , A-B REPEAT ,

INDEX , STOP , zREC , ERASE , . ,
x•B , > , MENU , FOLDER
and check states of Memory Stick insert and
outsert ( EJECT ).

• If all tests end in success, “**ALLOK**” is displayed. If the key
entry is NG or if any of the keys is not pressed yet, “**KEYNG**”
appears. If saving in the EEPROM is NG, “**MENUNG**”
appears.

x•B

LED TEST

LED EL ON

STOP

x•B

RESET RESET KEY

RESET OK

x•B

In the case that the key entry
and saving in the EEPROM end correctly,
after the check key is entered.

STOP

STOP

x•B

Suspend

USB VBUS ON

LCD OFF

When Vbus is on, HOLD key turns on.

STOP
or cut Vbus

STOP
cut Vbus

x•B

DC JACK JACK ON OFF

( )

STOP

10

ICD-S7

SECTION 4

DIAGRAMS

Note on Schematic Diagrams:

• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
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.

•Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : REC
[]: PB

∗

: Impossible to measure

•Voltages are taken with a VOM (Input impedance 10 MΩ).

Voltage variations may be noted due to normal produc­tion tolerances.

•Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc­tion tolerances.

• Circled numbers refer to waveforms.

• Signal path.

F : PB
L : REC

* Replacement of IC6201, IC7102 used in this set requires

a special tool.

• The voltage and waveform of CSP (chip size package)
cannot be measured, because its lead layout is different
from that of conventional IC.

Note on Printed Wiring Boards:

• Y : parts extracted from the conductor side.

• b : Pattern from the side which enables seeing.

Caution:
Pattern face side: Parts on the pattern face side seen from
(SIDE B) the pattern face are indicated.
Par ts face side: Parts on the parts face side seen from
(SIDE A) the parts face are indicated.

* Replacement of IC6201, IC7102 used in this set requires

a special tool.

• Lead layouts

• WAVEFORMS

surface

Lead layout of

conventional IC

CSP (chip size package)

1 IC7101 wd (SCK1)

2 IC7101 wl (SIPCLK)

3 IC7101 es

(DSPSYSCK)

5 IC7101 ej (MSCLK)

6 IC7101 yd (CF2)

8 IC8101 qd (X OUT)

(USB Connection)

2 V/DIV, 4 µs/DIV

2 V/DIV, 40 ns/DIV

2 V/DIV, 4 µs/DIV

2 V/DIV, 200 ns/DIV

1 V/DIV, 40 ns/DIV

5.7 µs

567 ns

3.0 Vp-p

4 Vp-p

70 ns

3.1 Vp-p

3.9 Vp-p

71 ns

2 V/DIV, 20 ns/DIV

2 V/DIV, 40 ns/DIV

3.7 Vp-p

8.33 ns

5.1 µs

3.1 Vp-p

4.0 Vp-p

50 ns

4 IC7101 ef (FSCLK)

2 V/DIV, 10 µs/DIV

31 µs

3.0 Vp-p

7

IC7113 wd (XO)

1111

ICD-S7

4-1. Block Diagrams – Main Section-1 –

Signal path

: REC

: PB

33239124343029

92 2

34

28

27

42

40

4

2

32

22
14

25

17

13

15

33

6

44

5

11

39

40

30

31

25

26

28

27

1

2

48

47

11
10

9
43
45
46

13

MIC3201

13

7

11

2

3

12

8

5

6

10

9

4

14

IC7107

SI/PO DRIVER

DATA

CLOCK

XLMUTE

SPPWR

HPPWR

HPMUTE

XREDLED

XGREENLED

XDSPRST

XEEPCS

15

XUSBRST

EEPRST

MICSEL

MICSEL

XBATTEN

XBATTEN

MICSENSE

D7102

RED(REC)

GREEN(PB)

6

3

1

IC6202

CLOCK GEN

IC7101 (1/3)

CPU

CLKIN

CE

Q0

Q1201,2201

MUTE

Q3201

SWITCH

Q3202

SWITCH

Q3206

SWITCH

J3201

(SPEAKER)

2

3

4

1

6

4

5

6

7

3

8

IC7106

EEPROM

IC7108

REAL TIME CLOCK

SK

DI

DO

CS

RESET

CLK

DATA

CE0

CE1

/AIRQ

/TIRQ

IC3201

MIC AMP, AGC,

HP AMP, POWER AMP

MICIN

35

MICVCC

LGAININ

BIASOUT

ROUT

LOUT

SPOUT+

SPOUT-

AGCDET

AGCSW
STBYSW

GAINSW

RECOUT

RIN

LIN

BEEPIN

MICPWR

HPPWR

SPPWR

MUTE

IC3202

ADC, DAC

RIN1

LIN1

ROUT2

LOUT2

OPGAR

ROUT1

OPGAL

LOUT1

STDO

STDO

BCLK

LRCK

SDTI

CDTI
CDTO
CCLK

XCS

XRST

XPD

MCK0

BCLK

LRCK

SO

ADACDTO

ADACDTI

ADACCLK

XADACS

XRST

MCLK

XUSBRST

HPJACK

AUPWR

AUPWR

SIPCLK

BEEP

5

MICPWR

FSCLK

RTCCS

SDO1

SDI1

SCK1

SP3201

B

A

C

F

D

E

WAKEUP

(OPR)

MIC

MIC

1

3

4

HPPWR

Q3207

Q1202,2202

Q3203,3208,
3209

DSPIVDD

IC3204

1212

ICD-S7

– Main Section-2 –

Signal path

: REC

: PB

68-75,
77-84

23-34,
37-40

43-49,
51-58,
26,27

12,17,18,23,
29,35,36,42,
7,13,14,20,
26,32,31,37

3-5,9,10,
15,16,22,

44-47,39,40,

33,34,28

16

42

17

41

1

8

XWE

XLB LB

WE

UB

XUB

7

31

60
20

6

USBDET

DREQ

XUSBCS

XUSBIRQ

D0-D15

56-53,
42-39

29-32,
41-44

MD0-MD7

I/O1-I/O16

A0-A16

A0-A16

A0-A16

15

3

11

2

XSRCS

XOE

XOE

OE
CS

IC7102
S-RAM

IC6203

FLASH MEMORY

45

35

47

40

8
7
6
5

138

46

48

52

159

150

49

160

157

50
55

158

11

12

5

2

6

3

1

14

13

12

35

32

8

38

37

39

62

63

13

MICSENSE

MICSENSE

2

5

1

IC7112

D-FF

D

CK

Q

8

9

17

CE
RE

ALE

CLE

R/B

I/O1-I/O8

16

7

1921

18

WE

WPXRST

XWE

XRE

XCE0

ALE

CLE

XBSY

IC7103

FLASH MEMORY

IC7113

MEMORY CONTROL

IC6201

DSP

ADASI

BCLK

LRCLK

SO

ADACDTO
ADACDTI
ADACCLK
XADACS
XRST

MCLK

TSO

TSCK

TSOEN

TSIEN

TSIOEN

TSI

REQ

CLKIN

FMSDIO

FMSCK

XFMWP

XFMCS

SDI

SDO

SCK

XWP

XCS

SDI0

SCK0

XDSPSIOEN

SDO0

DSPIFREQ

DSPSYSCK

MSDIO

MSCLK

MSBS

SDIO

SCKI

SBS

CF1

CF2

X7101

14.112MHz

14

13

XIN

5

VBUS

3

D-

4

D+

6

TRON

XOUT

X8102
12MHz

24

23

XI

XO

X7102
20MHz

G

D

A

IC7101 (2/3)

CPU

IC5108

D8101

21

Q7103

SWITCH

Q7102

SWITCH

47

45
42

41

44

43

17-22

DREQ0

CS

46

RST

INT0

HWR

LWR

RD

D0 - D15

D0 - D15

D0 - D15

A1 - A6

A0 - A5

1
2
3

VBUS

D­D+

IC8101

USB CONTROLLER

VOLTAGE

DETECT

CN8101

KEYGND

H

E

DDCOUT

XUSBRST

φ

STDO

BCLK

LRCK

SO

ADACDTO
ADACDTI
ADACCLK
XADACS
XRST

MCLK

6

9

3

37
52
51
47
49
50

21

IC7114

RESET

MSVDD