BOSS DD-7 Service Manual

May. 2008 DD-7

SERVICE NOTES

Issued by RJA

Table of Contents

Cautionary Notes ..............................................................2

Main Specifications ...........................................................3

Location of Controls .........................................................4

Location of Controls Parts List........................................4

Exploded View ..................................................................5

Exploded View Parts List.................................................5

Parts List .............................................................................6

Verifying the Version Number........................................8

Performing a Factory Reset..............................................8

Updating the System ........................................................8

Test Mode ...........................................................................9

Circuit Board (Main Board) ...........................................17

Circuit Diagram (Main Board: Analog) .......................18

Circuit Diagram (Main Board: Digital) ........................20

Copyright © 2008 Roland Corporation

All rights reserved. No part of this publication may be reproduced in any form without the written permission
of Roland Cororation.

Printed in Japan (0290) (CC-KWS)17058564E0

May. 2008 DD-7

Cautionary Notes

Before beginning the procedure, please read
through this document. The matters described may
differ according to the model.

No User Data

This product cannot save user data. Backing up user data during servicing is
not required.

Parts List

A component whose part code is ******** cannot be supplied as a service part
because one of the following reasons applies.

• Because it is supplied as an assembled part (under a different part code).

• Because a number of circuit boards are grouped together and supplied as
a single circuit board (under a different part code).

• Because supply is prohibited due to copyright restrictions.

• Because reissuance is restricted.

• Because the part is made to order (at current market price).

Circuit Diagram

In the circuit diagram, “NIU” is an abbreviation for “Not in Use,” and
“UnPop” is an abbreviation for “Unpopulated.” They both mean non-mounted
components. The circuit board and circuit board diagram show silk-screened
indications, but no components are mounted.

2

May. 2008 DD-7

Main Specifications

DD-7: Digital Delay

Nominal Input Level

-20 dBu

Input Impedance

1 MΩ

Nominal Output Level

- 20 dBu

Output Impedance

1 kΩ

Recommended Load Impedance

10 kΩ or greater

Delay Time

1 ms to 6400 ms

* Values may vary according to the mode and connections.

Maximum Recording Time

40 seconds (in HOLD mode)

Dimensions

73 (W) x 129 (D) x 59 (H) mm

2-7/8 (W) x 5-1/8 (D) x 2-3/8 (H) inches

Weight

440 g / 1 lb (including battery)

Accessories

Owner’s Manual English (#G2507366R0)

Mode Sticker (#G2547154R0)

Application Sticker (#G2547160R0)

Leaflet (“USING THE UNIT SAFELY,” “IMPORTANT NOTES,” and
“Information”) (#********)

Dry battery/9 V type (6LR61) (#********)

* The battery that was supplied with the unit is for temporary use-intended

primarily for testing the unit’s operation.

We suggest replacing this with an alkaline dry cell.

Options

AC adaptor (PSA-series)

Controls

Pedal switch

E.LEVEL knob, F.BACK knob, D.TIME knob, MODE knob

Indicator

CHECK indicator

(Used for indication of TEMPO, HOLD, and to check battery)

Connectors

INPUT-A (MONO) jack, INPUT-B jack

OUTPUT-A (MONO) jack, OUTPUT-B jack

TEMPO/EXP jack, AC adaptor jack (DC 9 V)

Power Supply

DC 9 V:

Dry battery 6F22 (9 V) type (carbon)

Dry battery 6LR61 (9 V) type (alkaline)

AC Adaptor (PSA-series: optional)

Current Draw

55 mA (DC 9 V)

Expected battery life under continuous use:

Carbon: 1.5 hours

Alkaline: 6 hours

* These figures will vary depending on the actual conditions of use.

* 0 dBu = 0.775 Vrms

* In the interest of product improvement, the specifications and/or appearance of

this unit are subject to change without prior notice.

3

May. 2008 DD-7

Location of Controls

fig.panel.eps

Location of Controls Parts List

No. Part Code Part Name Description Q’ty

1 75E593C0R0 CASE 1
2 G2537516R0 PSA CAUTION CE 9V N225 1
3 13449717 ADAPTOR JACK HEC2392-01-150 1
4 F5029423R0 LED L-3VEGW 1
5 G2477127R0 ROUND KNOB D-CUT (BLUE/BLACK) 3

F3279852R0 POTENTIOMETER RD901-20-15FW-B54-006 3

6 G2477127R0 ROUND KNOB D-CUT (BLUE/BLACK) 1

F3229206R0 POTENTIOMETER RD901-20-15FW-B50K-08Q7 8CLIC 1
7 F3449150R0 JACK (STEREO+SW) 2LJ-650NHW00 2
8 03344701 6.5MM JACK HTJ-064-12DS 1
9 13449140R0 JACK(STEREO) HTJ-064-14D 2
10 75E592T0R0 PEDAL 1
11 22357304R0 PEDAL PLATE 1
12 G2217798R0 PANEL PLATE 1
13 40125101 THUMB SCREW M3X10 FE ZC 1

4

May. 2008 DD-7

Exploded View

fig.bunkai.eps

10

b

11

a

a

7

6

b

d

2

12

1

9

5

3

4

c

8

Exploded View Parts List

No. Part Code Part Name Description Q’ty

1 13129710R0 SWITCH(PUSH) JM-0404 1
2 22267333R0 CUSHION 1
3 F3419102R0 BATTERY CONNECTOR 006P BATTERY SNAP 1
4 G2537516R0 PSA CAUTION CE 9V N225 1
5 22357305R0 BOTTOM BASE 1
6 22027851R0 BOTTOM COVER 1
7 G2167301R0 INSULATING SHEET 1
8 22157702R0 PEDAL GUIDE BUSH 1
9 22177109R0 COIL SPRING 1
10 22357304R0 PEDAL PLATE 1
11 75E592T0R0 PEDAL 1
12 75E593C0R0 CASE 1

a 40125134 NYLON WASHER 3X6X0.5 2
b H5019413R0 SCREW M3X10 BINDING MACHINE FEBC 2
c H5029325R0 SCREW 3X6 B1FEBC 4
d 40125101 THUMB SCREW M3X10 FE ZC 1

5

May. 2008 DD-7

Parts List

fig.-part1-e.eps

SAFETY PRECAUTIONS:

The parts marked have
safety-related characteristics. Use
only listed parts for replacement.

NOTE: The parts marked # are new. (initial parts)

CASING

# 75E593C0R0 CASE 1
# G2217798R0 PANEL PLATE 1
# 75E592T0R0 PEDAL 1

KNOB, BUTTON

# G2477127R0 ROUND KNOB D-CUT (BLUE/BLACK) 4

JACK, EXT TERMINAL

# F3449150R0 JACK (STEREO+SW) 2LJ-650NHW00 2

SWITCH

22357305R0 BOTTOM BASE 1
22027851R0 BOTTOM COVER 1

22357304R0 PEDAL PLATE 1

03344701 6.5MM JACK HTJ-064-12DS 1

13449140R0 JACK (STEREO) HTJ-064-14D 2
13449717 ADAPTOR JACK HEC2392-01-150 1

13129710R0 SWITCH(PUSH) JM-0404 1

Due to one or more of the following reasons,
parts with parts code ******** cannot be supplied as service parts.

• Part supplied only as a component in a complete assembly

• Copyright does not permit the part to be supplied

• Part is sold commercially

The description "Q'TY" means a necessary number of the parts per one product.

PWB ASSY

# 75E593P0R1 MAIN SHEET ASSY 1

* This unit includes the following parts.

******** MAIN BOARD
******** VR BOARD
******** INPUT BOARD
******** CTL BOARD
******** LED BOARD

DIODE

F5029423R0 LED L-3VEGW 1

RESISTOR

F5399101R0 MTL.FILM RESISTOR 0J (1608TYPE) 12

# F5429516R0 MTL.FILM RESISTOR 1R0 J(1608TYPE) 12

POTENTIOMETER

F3279852R0 POTENTIOMETER RD901-20-15FW-B54-006 3

# F3229206R0 POTENTIOMETER RD901-20-15FW-B50K-08Q7

8CLIC

CONNECTOR

F3419102R0 BATTERY CONNECTOR 006P BATTERY SNAP 1

WIRING, CABLE

# F3487015R0 WIRING YELLOW 110X6EX6E (EXP) 1

H4009408R0 WIRING 1007 WHITE 85X6X3 1

# F3477063R0 WIRING RIBBON CABLE 6P X80MM 1

H4009498R1 WIRING 1P VIOLET L=160MM 1

# H4009305R0 WIRING ORANGE 100X3X6 (OUTPUT) 1

F3467053R0 WIRING 1007-26X3P L=65MM CONNECT X 1 1

# H4009610R0 WIRING GREY 100X3X6 (OUTPUT) 1

H4009499R1 WIRING 1P GREEN L=160MM 1

H4009597R0 WIRING 1007 BROWN 105X6X3 1
# H4009458R0 WIRING BLACK 45X6X6 (INPUT) 1
# F3467058R1 INPUT WIRING BOARD IN CONNECTOR 1

1

6

May. 2008 DD-7

SCREWS

# G2137403R0 WASHER HALF MOON SHAPE 1

PACKING

# G2627793R0 PACKING CASE 1

MISCELLANEOUS

ACCESSORIES (Standard)

# G6017474R0 OWNER’S MANUAL JAPANESE 1
# G2507366R0 OWNER’S MANUAL ENGLISH 1
# G2547154R0 MODE LABEL 1
# G2547160R0 APPLICATION LABEL 1

H5039158R0 WASHER M9X14X0.5T NI 5

40125101 THUMB SCREW M3X10 FE ZC 1

40125134 NYLON WASHER 3X6X0.5 2

22137709R0 WASHER 9.6X14X1.0 1

H5019413R0 SCREW M3X10 BINDING MACHINE FEBC 2

H5029325R0 SCREW 3X6 B1FEBC 5

H5039205R0 TOOTH WASHER 9.1X13 5

H5039510R0 NUT M9X12X2T NI 5

H5039521R0 NUT M7 4

G2627738R0 INNER BOX 1

H2369451R0 LED SPACER LEDH-5 5MM 3P 1

G2537516R0 PSA CAUTION CE 9V N225 1

22177109R0 COIL SPRING 1

22267333R0 CUSHION 1

G2167301R0 INSULATING SHEET 1

22157702R0 PEDAL GUIDE BUSH 1

22257257R0 EARTH TERMINAL 2

7

May. 2008 DD-7

Verifying the Version Number

1. Connect an AC adaptor.

2. Turn down all controls all the way counterclockwise.

3. Holding down the foot pedal and inserting a plug into the INPUT jack

makes the CHECK LED light up.

* Continue holding down the pedal until the LED goes dark.

After approximately 2 seconds, the CHECK LED goes dark.

* The CPU and DSP checks are performed before the LED goes dark as just

described. If a problem is found in the CPU, DSP, or the like, the LED may not
go out.

After approximately 1 second the CHECK LED flashes, and the number
of flashes indicates the version.

1 flash: Ver. 1.00

2 flashes: Ver. 1.01

3 flashes: Ver. 1.02

4. After the version display, execution shifts to the Test Mode.

Performing a Factory Reset

This product has no factory-reset feature.

Updating the System

A system update cannot be performed for this product. If an update is
required, replace with an updated circuit board.

8

May. 2008 DD-7

Test Mode

Items Required

• Oscillator x 2

• Oscilloscope x 1

• Noise meter x 2

• AC adaptor (PSA series device or 9 V DC power source) x 1

• Powered monitor x 2

• Expression pedal (EV-5) x 1

• 47-kΩ short plug x 2

Entering the Test Mode

1. Refer to the figure below and connect the measuring equipment to a connector other than the INPUT jack.

fig.DD-7-connection.eps

MonitorSpeakerNoise MeterOscilloscope

Power

Supply

9V

6.5V

2. Turn down all controls all the way counterclockwise.

3. Holding down the foot pedal and inserting a plug into the INPUT jack makes the CHECK LED light up.

* Continue holding down the foot pedal until the LED goes dark.

400Hz
800mV
Square

Signal Genelator

400Hz

4.0V
Sine

47kΩ
Dummy Plug

EV-5

After approximately 2 seconds, the CHECK LED goes dark.

* The CPU and DSP checks are performed before the LED goes dark as just described. If a problem is found in the CPU, DSP, or the like, the LED may not go out.

After approximately 1 second the CHECK LED flashes, and the number of flashes indicates the version.

1 flash: Ver. 1.00

2 flashes: Ver. 1.01

flashes: Ver. 1.02

4. Release the foot pedal.

Quitting the Test Mode

Pull out the plug from the INPUT jack and switch off the power.

9

May. 2008 DD-7

Test Items

1. VR Check (E.LEVEL) (p. 10)

2. VR Check (F.BACK) (p. 10)

3. VR Check (D.TIME) (p. 11)

4. VR Check (MODE) (p. 12)

5. DA Check (EXP [Expression Pedal] Check) (p. 13)

6. DSP Through Check (INPUT B Check) (p. 14)

7. DSP Through Check (INPUT A Check) (p. 14)

8. DSP Through Check (OUTPUT A Check) (p. 15)

9. DSP Through Check (OUTPUT B Check) & CLIP Check (p. 15)

10. Residual Noise Check (p. 16)

11. Battery Operation Check (p. 16)

1. VR Check (E.LEVEL)

Make the connections shown below to the INPUT and OUTPUT jacks on the
DD-7, using the settings indicated.

INPUT A: Input a rectangular wave at 400 Hz, 800 mVp-p.

INPUT B: Input a rectangular wave at 400 Hz, 800 mVp-p.

OUTPUT A: Connect the oscilloscope.

OUTPUT B: Connect the oscilloscope.

Set the oscilloscope to 500 mV/DIV, 1 ms/DIV, and coupling: DC.

1. Verify that the E.LEVEL control is turned down counterclockwise all the

way.

The CHECK LED lights up orange.

fig.DD-7-wave-1.eps_75

4. Adjust the E.LEVEL control to the 12 o’clock position. With the control

turned down counterclockwise all the way, turn it clockwise to the 12
o’clock position, and verify that the CHECK LED goes dark. At the 12
o’clock position, the LED lights up red.

fig.DD-7-wave-3.eps_75

5. Turn the E.LEVEL control clockwise all the way. Verify that while the

control is being turned all the way clockwise from the 12 o’clock position,
the CHECK LED stays dark. When the control has been turned clockwise
all the way, the LED lights up red.

fig.DD-7-wave-1.eps_75

2. With the E.LEVEL control turned down counterclockwise all the way,

turn it clockwise to the 9 o’clock position.

Verify that the CHECK LED goes dark.

3. Turning the control all the way counterclockwise again makes the

CHECK LED light up red.

fig.DD-7-wave-2.eps_75

2. VR Check (F.BACK)

Make the connections shown below to the INPUT and OUTPUT jacks on the
DD-7, using the settings indicated.

INPUT A: Input a rectangular wave at 400 Hz, 800 mVp-p.

INPUT B: Input a rectangular wave at 400 Hz, 800 mVp-p.

OUTPUT A: Connect the oscilloscope.

OUTPUT B: Connect the oscilloscope.

Set the oscilloscope to 500 mV/DIV, 1 ms/DIV, and coupling: DC.

1. Verify that the F.BACK control is turned down counterclockwise all the

way.

The CHECK LED lights up orange.

fig.DD-7-wave-1.eps_75

10

May. 2008 DD-7

2. With the F.BACK control turned down counterclockwise all the way, turn

it clockwise to the 9 o’clock position.

Verify that the CHECK LED goes dark.

3. Turning the control all the way counterclockwise again makes the

CHECK LED light up red.

fig.DD-7-wave-2.eps_75

4. Adjust the F.BACK control to the 12 o’clock position. With the control

turned down counterclockwise all the way, turn it clockwise to the 12
o’clock position, and verify that the CHECK LED goes dark. At the 12
o’clock position, the LED lights up red.

fig.DD-7-wave-3.eps_75

3. VR Check (D.TIME)

Make the connections shown below to the INPUT and OUTPUT jacks on the
DD-7, using the settings indicated.

INPUT A: Input a rectangular wave at 400 Hz, 800 mVp-p.

INPUT B: Input a rectangular wave at 400 Hz, 800 mVp-p.

OUTPUT A: Connect the oscilloscope.

OUTPUT B: Connect the oscilloscope.

Set the oscilloscope to 500 mV/DIV, 1 ms/DIV, and coupling: DC.

1. Verify that the D.TIME control is turned down counterclockwise all the

way.

The CHECK LED lights up orange.

fig.DD-7-wave-1.eps_75

5. Turn the F.BACK control clockwise all the way. Verify that while the

control is being turned all the way clockwise from the 12 o’clock position,
the CHECK LED stays dark. When the control has been turned clockwise
all the way, the LED lights up red.

fig.DD-7-wave-1.eps_75

2. With the D.TIME control turned down counterclockwise all the way, turn

it clockwise to the 9 o’clock position. Verify that the CHECK LED goes
dark.

3. Turning the control all the way counterclockwise again makes the

CHECK LED light up red.

fig.DD-7-wave-2.eps_75

4. Adjust the D.TIME control to the 12 o’clock position. With the control

turned down counterclockwise all the way, turn it clockwise to the 12
o’clock position, and verify that the CHECK LED goes dark. At the 12
o’clock position, the LED lights up red.

fig.DD-7-wave-3.eps_75

11

May. 2008 DD-7

5. Turn the D.TIME control clockwise all the way. Verify that while the

control is being turned all the way clockwise from the 12 o’clock position,
the CHECK LED stays dark. When the control has been turned clockwise
all the way, the LED lights up red.

fig.DD-7-wave-1.eps_75

4. VR Check (MODE)

Make the connections shown below to the INPUT and OUTPUT jacks on the
DD-7, using the settings indicated.

INPUT A: Input a rectangular wave at 400 Hz, 800 mVp-p.

INPUT B: Input a rectangular wave at 400 Hz, 800 mVp-p.

OUTPUT A: Connect the oscilloscope.

OUTPUT B: Connect the oscilloscope.

Set the oscilloscope to 500 mV/DIV, 1 ms/DIV, and coupling: DC.

1. Verify that the MODE control is at the REVERSE position.

Verify that waveforms like those shown in the figure below are output.

The CHECK LED lights up orange.

fig.DD-7-wave-1.eps_75

3. Adjust the MODE knob to the MODULATE position.

Verify that waveforms like those shown in the figure below are output.

The CHECK LED lights up orange.

fig.DD-7-wave-1.eps_75

4. Adjust the MODE control to the HOLD position.

Verify that waveform output stops.

The CHECK LED goes dark.

fig.DD-7-wave-2.eps_75

2. Adjust the MODE knob to the ANALOG position.

Verify that waveform output stops.

The CHECK LED goes dark.

fig.DD-7-wave-2.eps_75

5. Adjust the MODE control to the 50 ms position.

Verify that waveforms like those shown in the figure below are output.

The CHECK LED lights up orange.

fig.DD-7-wave-1.eps_75

12

May. 2008 DD-7

6. Adjust the MODE control to the 200 ms position.

Verify that waveform output stops.

The CHECK LED goes dark.

fig.DD-7-wave-2.eps_75

7. Adjust the MODE control to the 800 ms position.

Verify that waveforms like those shown in the figure below are output.

The CHECK LED lights up orange.

fig.DD-7-wave-1.eps_75

5. DA Check (EXP [Expression Pedal]
Check)

Make the connections shown below to the INPUT and OUTPUT jacks on the
DD-7, using the settings indicated.

INPUT A: Input a rectangular wave at 400 Hz, 800 mVp-p.

INPUT B: Input a rectangular wave at 400 Hz, 800 mVp-p.

OUTPUT A: Connect the oscilloscope.

OUTPUT B: Connect the oscilloscope.

Set the oscilloscope to 500 mV/DIV, 1 ms/DIV, and coupling: DC.

1. Adjust the MODE control to the 800 ms position.

Verify that the CHECK LED is lighted up orange.

2. Connect the EV-5 to the TEMPO/EXP jack.

Verify that the CHECK LED is lighted up red.

fig.DD-7-wave-1.eps_75

8. Adjust the MODE control to the 3,200 ms position.

Verify that waveform output stops.

The CHECK LED goes dark.

fig.DD-7-wave-2.eps_75

3. Depress the heel of the EV-5 pedal all the way.

fig.DD-7-wave-2.eps_75

4. Depress the toe of the EV-5 pedal, and stop when the intermediate

position is reached.

Verify that the CHECK LED is lighted up green.

fig.DD-7-wave-3.eps_75

13

May. 2008 DD-7

5. Depress the toe of the EV-5 pedal all the way.

Verify that the CHECK LED is lighted up red.

fig.DD-7-wave-1.eps_75

6. Unplug the EV-5 from the jack.

6. DSP Through Check (INPUT B Check)

Make the connections shown below to the INPUT and OUTPUT jacks on the
DD-7, using the settings indicated.

INPUT A: Input a rectangular wave at 400 Hz, 800 mVp-p.

INPUT B: Input a rectangular wave at 400 Hz, 800 mVp-p.

OUTPUT A: Connect the oscilloscope.

OUTPUT B: Connect the oscilloscope.

Set the oscilloscope to 500 mV/DIV, 1 ms/DIV, and coupling: DC.

1. Adjust the MODE control to the 200 ms position.

Verify that the CHECK LED goes dark.

fig.DD-7-wave-1.eps_75

3. Insert the plug into the INPUT B jack.

Verify that the CHECK LED goes dark.

fig.DD-7-wave-1.eps_75

7. DSP Through Check (INPUT A Check)

Make the connections shown below to the INPUT and OUTPUT jacks on the
DD-7, using the settings indicated.

INPUT A: Input a rectangular wave at 400 Hz, 800 mVp-p.

INPUT B: Input a rectangular wave at 400 Hz, 800 mVp-p.

OUTPUT A: Connect the oscilloscope.

OUTPUT B: Connect the oscilloscope.

Set the oscilloscope to 500 mV/DIV, 1 ms/DIV, and coupling: DC.

1. Adjust the MODE control to the 50 ms position.

Verify that the CHECK LED lights up orange.

fig.DD-7-wave-1.eps_75

2. Disconnect the plug from the INPUT B jack.

Verify that the CHECK LED lights up green.

fig.DD-7-wave-4.eps_75

If the waveforms grow larger, operation is correct. If the waveforms
show no change, operation is faulty.

14

2. Disconnect the plug from the INPUT A jack.

Verify that the CHECK LED lights up red.

fig.DD-7-wave-5.eps_75

If the waveforms grow larger, operation is correct. If the waveforms
show no change, operation is faulty.

May. 2008 DD-7

3. Insert the plug into the INPUT A jack.

Verify that the CHECK LED lights up orange.

fig.DD-7-wave-1.eps_75

8. DSP Through Check (OUTPUT A Check)

Make the connections shown below to the INPUT and OUTPUT jacks on the
DD-7, using the settings indicated.

INPUT A: Input a rectangular wave at 400 Hz, 800 mVp-p.

INPUT B: Input a rectangular wave at 400 Hz, 800 mVp-p.

OUTPUT A: Connect the oscilloscope.

OUTPUT B: Connect the oscilloscope.

Set the oscilloscope to 500 mV/DIV, 1 ms/DIV, and coupling: DC.

1. Adjust the MODE control to the HOLD position.

Verify that the CHECK LED has gone dark.

fig.DD-7-wave-1.eps_75

3. Insert the plug into the OUTPUT A jack.

Verify that the CHECK LED goes dark.

fig.DD-7-wave-1.eps_75

9. DSP Through Check (OUTPUT B Check)
& CLIP Check

Make the connections shown below to the INPUT and OUTPUT jacks on the
DD-7, using the settings indicated.

INPUT A: Input a sine wave at 400 Hz, 4.0 V p-p.

INPUT B: Input a sine wave at 400 Hz, 4.0 V p-p.

OUTPUT A: Connect the oscilloscope.

OUTPUT B: Connect the oscilloscope.

Set the oscilloscope to 2.0 V/DIV, 1 ms/DIV, and coupling: DC.

1. Adjust the MODE knob to the MODULATE position.

Verify that the CHECK LED lights up orange.

Verify that the waveforms are not clipped.

fig.DD-7-wave-7.eps_75

2. Disconnect the plug from the OUTPUT A jack.

Verify that the CHECK LED lights up green.

fig.DD-7-wave-6.eps_75

2. Disconnect the plug from the OUTPUT B jack.

Verify that the CHECK LED lights up red.

fig.DD-7-wave-8.eps_75

15

May. 2008 DD-7

3. Insert the plug into the OUTPUT B jack.

Verify that the CHECK LED lights up orange.

fig.DD-7-wave-7.eps_75

4. Adjust the MODE knob to the ANALOG position.

Verify that the CHECK LED lights up orange.

Verify that the waveforms are not clipped.

fig.DD-7-wave-7.eps_75

6. Insert the plug into the OUTPUT B jack.

Verify that the CHECK LED lights up orange.

fig.DD-7-wave-7.eps_75

7. Adjust the MODE control to the REVERSE position.

Verify that the CHECK LED lights up orange.

Verify that the waveforms are not clipped.

fig.DD-7-wave-7.eps_75

5. Disconnect the plug from the OUTPUT B jack.

Verify that the CHECK LED lights up red.

fig.DD-7-wave-8.eps_75

10. Residual Noise Check

Make the connections shown below to the INPUT and OUTPUT jacks on the
DD-7.

INPUT A: Connect a 47-kΩ dummy plug.

INPUT B: Connect a 47-kΩ dummy plug.

OUTPUT A: Connect a noise meter (JIS-A) and monitor speaker.

OUTPUT B: Connect a noise meter (JIS-A) and monitor speaker.

1. Adjust the MODE knob to the ANALOG position.

Verify that the CHECK LED goes dark.

Verify that residual noise is -93.0 dB or less.

Verify that no audible noise or shock noise is present.

2. Adjust the MODE control to the REVERSE position.

Verify that the CHECK LED lights up orange.

Verify that residual noise is -99.0 dB or less.

Verify that no audible noise or shock noise is present.

3. Detach the plugs from the INPUT A and INPUT B jacks and switch off

the power.

11. Battery Operation Check

1. Insert batteries into the battery compartment, connect the AC adaptor (to

INPUT A), and switch on the power.

Make sure the CHECK LED lights up.

2. Rapidly disconnect the AC adaptor and verify battery operation.

* Failing to disconnect rapidly triggers a reset. If reset occurs repeatedly, a

problem such as faulty contact in the AC adaptor jack may be present. If the
CHECK LED is dark, check the battery voltage.

16

May. 2008 DD-7

Circuit Board (Main Board)

fig.b-main.eps

17

May. 2008 DD-7

A

D

0

D(05%)10k

0

4

5

VEE

VDD

3

Circuit Diagram (Main Board: Analog)

fig.d-main-analog.eps@L

PWB F2927058R0 1/6
ASSY 75E593P0R0

D6

AVCC

UnPop

2

Q1

3

2SK880-GR(TE85R,F)

3

12

R19

R57

1M

10k

AGND

AVCC

D4

UnPop

2

1

1

TP2

11

C6

10uF 10V

D (0.5%)

R42 UnPop

C5

C6 ; Unpop -> 10/10
R61; Unpop -> 39k
R70; 0 -> 39k

3

3

R59

1M

AGND

IN_REFV

D (0.5%)

TP37

D (0.5%)

C2

10V10uF

TP51

12

Q2

2SK880-GR(TE85R,F)

R28

10k

D (0.5%)

10V

10uF

C8

C43

0.1uF

10V

10uF

C10

A+3.3

R39
0

R24

10k

D (0.5%)

10V10uF

C11

R22

D1

1

3

TP49

10k

D (0.5%)

C4

10V10uF

C29

AGND

0.1uF

1

DGND

IN_A_DET

<2C7>

IN_B_DET

<2C7>

TP19

TP61

0.1uF

D13

GS1G

VBAT

C57

16V

100uF

UDZS TE-17 9.1B

0

R38

0.1uFC49

D14

D12

SS14

2SC4117-GR(TE85L,F)

0.1uFC40

1

23

Q17
2SC4116-GR(TE85R,F)

23
1

R17

22k

Q19
2SA1586-GR(TE85R,F)

D15

UDZS TE-17 9.1B

TP59

Q20
2SA1586-GR(TE85R,F)

23
1

R8

22k

R98

DGND

10V10uF

C23

2200pF

C21

2200pF

D (0.5%)

TP11

R76

R31

560

TP40

R97

UnPop

TP26

R70

1

39k

2

R61

39k

R60

39k

1

3

IC4
NJM4558M(TE1)

R62

39k

6

7

5

IC4
NJM4558M(TE1)

AVREF AVREF

C34

C59

47pF

R52

R45

22k

22k

D (0.5%)

D (0.5%)

2

R82

3

56k

D (0.5%)

IC1
NJM2115V(TE1)

R100

UnPop

D (0.5%)

R80

56k

C58

47pF

R46

R51

22k

22k

D (0.5%)

6

5

IC1
NJM2115V(TE1)

A+3.3

8

0.1uFC41

4

VDD

IC1
NJM2115V(TE1)

VEE

AGND

AVCC

2SC4116-GR(TE85R,F)

Q18

TP20

23

1

2.2k

10V10uF

C55

10V47uF

C74

AGND

TP45

Q16

23

1

C54

10V10uF

10V47uF

C73

DGND

TP9

LED_CHK_RED
LED_CHK_GRN

UnPop

TP8

AVCC

8

VDD

IC4

0.1uF

NJM4558M(TE1)

4

VEE

AGND

TP27

2

C15

10V10uF

1

TP12

2

C13

10V10uF

7

SD_DA

<2F5>

LRCK

<2E5>

MCK

<2E5>

BCK

<2E5>

CODEC_PDN

<2C7>

Q6 ; Unpop -> DTC114TUAT106
R7 ; Unpop -> 56k
R58; Unpop -> 1M

1

C67; Unpop -> 0.047uF

<2E5>
<2D7>
<2F5>
<2E5>
<2C7>

<2C7>
<2C7>

C13; 10(3216) -> 10/10
C14; 10(3216) -> 10/10

2

C15; 10(3216) -> 10/10
C18; 10(3216) -> 10/10
C64; 1u -> 10/10

R1

10

C9

10V10uF

C31

0.1uF

AGND

2

LIN

1

RIN

13

SDTI

14

LRCK

15

MCLK

16

BCLK

7

DEM1

6

DEM0

17

PDN

12

CKS3

11

CKS2

10

CKS1

9

CKS0

C130

0.1uF

C129

0.1uF

0.1uF

AGND

BYPASS_A_MUTE
DA_A_MUTE
BYPS_A_TO_B_MUTE
BYPASS_B_MUTE
DA_B_MUTE

AGND

C128

DGND

R93

R96

TP7

R94

_BYPASS_B

A+3.3

0

R43

C7

4V100uF

C45

5VD4

0.1uF

VA

LOUT

ROUT

SDTO

VCOM

VSS
IC6
AK4552VTP

3

C38

0.1uF

111

TP23

TP43

TP52

TP24

TP64

2.2k
D (0.5%)

18k

D (0.5%)

TP54

R72

47k

47k

D (0.5%)

C50

470pF

_BYPASS_A

TP60

2

C18

DA_A

AGND

TP33

19

20

DA_B_AD_B

8

2

R92

100

SD_AD

18

2

10V

0.1uFC37
10uF

C64

DGND

AVCC

R7
56k

R58

DTC114TUAT106

Q6

1M

1

23

DGND

AGND

FB_1.5

<G10>

FB_3.3

<G10>

Digital 3.28->3.1

4

R75 ; 3.3k (D) -> 0

0

R75

R95

47k

D (0.5%)

R44

22k

D (0.5%)

22k

D (0.5%)

10V10uF

22k

D (0.5%)

C14

10V10uF

<2F5>

AVREF

0.1uF

C32

C3

TP4

0.047uFC67

1

1000pF

C53

R74

47k

C52

470pF

INPUT BOARD

PWB F2927058R0 4/6
ASSY 75E593P0R0

JK1
2LJ-650NHW00

INPUT AINPUT B

JK2
2LJ-650NHW00

SHASSIS

TP68

6
7
8
4
3
2

6
7
8
4
3
2

SHASSIS

BG608 INPUT WIRING

BLK 45mm

Battery 006P

LED BOARD

PWB F2927058R0 3/6
ASSY 75E593P0R0

L_RED

L_GRN

132

TP67
TP70
TP83
TP75
TP71
TP78

TP79

LED1
L-3VEGW

1
2
3

CN2

RIBBONCABLE 3P

MAIN BOARD

1SS362FV(TPL3)

1

BRN 60mm

TP65

YEL 70mm

TP76

BLK 70mm

TP77

AGND

GRN 60mm

TP73

ORG 70mm

TP66

Adaptor PSA-***S

JK3
HEC2392-0101509

TP74

BLU 70mm

TP80

Connect to SHASSIS

TER1

EARTHTERMINAL

TER2

EARTHTERMINAL

CN1

AGND

R30

10k

TP30

IN_REFV

1SS362FV(TPL3)

TP28

R25

10k

TP39

AVCC

10V10uF

C1

AGND

D+3.3

R16

22k

1SS362FV(TPL3)

2

R13

22k

R11

1k

L3
WQT-0460

1

3

2

24
3
1
5
4

C42

0.1uF

1

1

TP3

TP58

2

R87

270

1
2

2

3

3

R86

180

TP48

R91

39k

R86; 100 -> 180

3

R3; 47K -> 39K
R86; 180 -> 100

2

R87; 220

C77
1uF

TP31

AGND

C78
1uF

IN_REFV

R21

10k

R20

12k

D+3.3

1SS362FV(TPL3)

2

R15

1k

D2

3

TP6

C30

2

R3

-> 270

39k

C133
68pF

R49

22k

D (0.5%)

R81
56k

R48

D (0.5%)

2

3

AVREF

IC5
NJM4558M

C127
68pF

R50

C22

220

22k

D (0.5%)

R79

R47

56k

D (0.5%)

6

5

NJM4

AVREF

R23

10k

0.1uF

D (0.5%)

C27

R101

12k

D (0.5%)

10V10uF

Q8

1

AGN

TP4

AVCC

R5

56k

R53

DTC114TUAT106

0.047uF

1M

23

C66

DGND

AGND

TP35

TP1

D (0.5%)

D (0.5%)27k

R83

R84

1000pFC51

27k

C2

22

7

IC

8

4

R18

18

May. 2008 DD-7

D

(0

5%)10k

VEE

VDD

fig.d-main-analog.eps@R

1

C17

1

10uF

_DA_A

C16

TP36

10uF

0pF

1

(TE1)

pF

TP53

_DA_B

558M(TE1)

VCC

IC5

NJM4558M(TE1)

C17; Unpop -> 10u(3216)
D9 ; Unpop -> 1SS387
Q12; Unpop -> 2SK879-Y
R64; Unpop -> 39k
R35; Unpop -> 470k

TP21

1

1

R35

470k

1SS387(TPH3,F)

AVREF

TP32

R33

AVREF

470k

TP46

2SK879-Y(TE85L,F)

C20

10uF

AVREF

R32

470k

TP10

C19

10uF

39k

AVREF

R34

470k

R64

39k

R63

39k

R66
UnPop

UnPop

R65

39k

R69

1

C61

68pF

R68

1

D9

39k

2SK879-Y(TE85L,F)

Q12

3

2

12

3

22pF

C62

TP55

12

Q9

3

2SK879-Y(TE85L,F)
D10

1SS387(TPH3,F)

Q11
UnPop

12

3

D8

Q13

3

3

1SS387(TPH3,F)

C60

68pF

R67

39k

6

12

5

22pF

D11

C63

TP5

1SS387(TPH3,F)

12

Q10
2SK879-Y(TE85L,F)

D7

TP44

C76

10uF16V

1

IC3
NJM4558M(TE1)

AVREF

C75

10uF16V

TP25

7

IC3
NJM4558M(TE1)

AVREF

AVCC

8

VDD

0.1uFC35

4

VEE

AGND

TP22

R85

1k

R90

100k

AGND

TP14

R88

1k

R89

100k

AGND

IC3
NJM4558M(TE1)

TP82

TP72

TP81

TP69

GRY 100mm

BRN 105mm

WHT 85mm

ORG 100mm

OUTPUT A

JK5

HTJ-064-14D

2
3
1

SHASSIS

OUTPUT B

JK6

HTJ-064-14D

2
3
1

SHASSIS

1

AVCC

Q7

R54

UnPop

UnPop

1

23

DGND

C70

0.01uF

.

D (0.5%)10k

R26

TP63

TP13

R2

UnPop

Q4

DTC114TUAT106

1

C69 UnPop

AGND

DGND

C71

R73

1000pF

47k

R71

47k

TP17

R29

10k

D (0.5%)

TP57

R99

C48

0.1uF

C28

0.1uF
3

1

RST_DCDC

Q3

2

DTC114TUAT106

TP16

AVCC

R4

56k

R56

0.047uFC65

1M

1

23

AGND

15

FB1

16

INV1

13

DTC1

6

FB2

5

INV2

7

DTC2

4

NON2

19

STB

1

SEL1

2

15k

RT

3

CT

D (0.5%)

14

SCP

17

VREF

C72

470pF

R27

D (0.5%)10k

<2B4>

TP15

AVCC

R6

56k

DTC114TUAT106

Q5

R55

0.047uFC68

1M

23

<2C7>

AGND

<2C7>

DGND

18

VCC

12

PVCC1

11

OUT1

8

PVCC2

9

OUT2

10

PGND

GND
IC2
BD9851EFV-E2

20

DGND

C44

0.1uF

C36

0.1uF

1SS362FV(TPL3)

1

TP29

DGND

OUT_A_DET
OUT_B_DET

TP34

PVCC

C56

10V47uF

TP62

1

R78

56

TP50

R77

56

1

52

Q15
QS5U27TR(PB FREE)
Q15
QS5U27TR(PB FREE)

D+3.3

D5

2

3

R9

22k

R10

1k

D3

1SS362FV(TPL3)

1

2

3

R12

22k

R14

1k

Q14
QS5U27TR(PB FREE)

Q14
QS5U27TR(PB FREE)

3

4

L2

52

ELL6SH820M

TP38

C47

34

L1

ELL6SH151M

TP56

0.1uF

DGND

D+1.5

0

R40

4V

C25

100uF

C39

0.1uF

TP42

D+3.3

DGND

R41

C26

0

FB_1.5

TP47

FB_3.3

4V100uF

<F6>

<F6>

19

May. 2008 DD-7

9

Circuit Diagram (Main Board: Digital)

fig.d-main-digital.eps@L

EXP BOARD

PWB F2927058R0 5/6
ASSY 75E593P0R0

JK4
HTJ-064-12DS

2
3
1

SHASSIS

VR BOARD

_DVREF

VR1
RD901F-20-15FW-B50K-006

2
13

E.LEVEL

3

VR2
RD901F-20-15FW-B50K-006

2
1

F.BACK

VR3
RD901F-20-15FW-B50K-006

2

D.TIME

13

VR4
RD901F-20-15FW-B50K-08Q7

2
13

MODE(8click)

_DGREF

TP109

TP116

PWB F2927058R0 2/6
ASSY 75E593P0R0

_DVREF

C88

10uF

1
2
3
4
5
6

_DGREF

YEL 110mm

GRY 110mm

CN4

MAIN BOARD

IC10

TC7W04FK(TE85L/F)

TC7W04FK(TE85L/F)

17

RESET

<E5>

35

TC7W04FK(TE85L/F)

D+3.3

C116

0.1uF

FBMA-10-160808-601T

L7

TP110

FBMA-10-160808-601T

L8

TP113

RIBBON CABLE 6P

R131; 18K (MF) -> 15K (MF)

R131; 15K (MF) -> 0
R124; 33K (MF) -> UnPop
IC11; BD45301G-TR -> BD45431G-TR

CN3

62

RST_DCDC

IC10

8

VCC

IC10
TC7W04FK(TE85L/F)

4

GND

DGND

R105

DVREF

1
2
3
4
5
6

IC10

DVREF

470k

C85

10V10uF

1

2

PWB F2927058R0 1/6
ASSY 75E593P0R0

TP95

<1H7>

C122

0.1uF

HN58X2402SFPIBEZ

C105

0.1uF

DGND

D+3.3

D17

1SS362FV(TPL3)

2

3

R136

4.7k

R133

4.7k

R132

4.7k
TP103

DGREF

PVCC

R131

0

0.1uF

R124

UnPop

C12

10k

10k

10k

10k

3

A2

IC12

1

DGREF

<B3>

A1
A0

SDA
SCL

WP

NC
A1
A0

SDA
SCL

WP

IC8

DGND

0.1uFC93

1000pFC124

VOUT

SUB

ER

2

MCK
BCK
LRCK

SD_DA
SD_AD

2
1

5
6
7

3
2
1

5
6
7

TP98

0.01uFC82

D+3.3

4

1

RESET

TP92

TP90

TP108

TP105

R114

R120

TP106

ESC+3.3

TP89

TP101

0.01uF

0.01uFC83

C80

R104

56k
R109

0

C123
UnPop

TP85

TP107

18
27

R115

R119

WP_USER

TP102

TP99

SDA
SCL

WP_PROG

<C8>

DVREF

R103
10

C90

TP94

R107

0

TP88

DGND

R102
10

0.01uFC81

DGND

RA8

100

<1F5>

C89

ESC+1.5

DGND

C125
22pF

ESB16.9344F16D35F

C126
22pF

TP84

DGND

<C9>

<B5>

<1E5>

<1F5>

6543

BYPS_A_TO_B_MUTE

<E5>

TP96

4V100uF

DGREF

4V100uF

21

X1

SW_PDL

TP123
TP120

WP_USER

BYPASS_A_MUTE

BYPASS_B_MUTE

8

VCC

4

VSS

8

VCC

4

VSS

HN58X24512FPIE

ADRESS->USER;1010001/PROG;1010X00

1

D16
1SS362FV(TPL3)
2

3

R134

4.7k

R135

4.7k

TP104

0

R110

0

R106

0R111
0R108

IC11
BD45431G-TR

5

VDD

3

GND

DGND

<1D5>
<1D5>
<1D5>

<1D5>
<1D6>

<C8>
<C8>

DGND

TP117
TP119
TP121
TP122
TP118

TP87

C115

0.1uF

TP100

C111

0.1uF

TP97

DGND

C87

79
80

102
103
104
105
106

84
85

95
94

93
92
91
90
89
88
87
86

134

133

139

140

98
99
135
136
137
142
143

81

70
71
74
75

76
77

119

118

110
111
107

112
113
116
117

TP

4V100uF

0.1uFC121

0.1uFC91

0.1uFC109

0.1uFC101

0.1uFC112

0.1uFC119

0.1uFC104

0.1uFC103

0.1uFC107

0.1uFC114

0.1uFC110

0.1uFC98

SCL
SDA

DCK
DMS
DDI
DDO
_DRST

AVDD3
AVREF

AGND3
AVREF

AIN7
AIN6
AIN5
AIN4
AIN3
AIN2
AIN1
AIN0

AVDD1

AGND1

XIN

XOUT

TMODE
TMODE
TMC1
TMC2
_TRST
SMC
AMC

_RESE

TXD1/
RXD1/
TXD0/
RXD0/

TI/P7
TCLR/

PWM/S

_SYNC

MCK/T
BCK/T
LRCK/

SD7/T
SD6/T
SD5/T
SD4/T

20

May. 2008 DD-7

9

fig.d-main-digital.eps@R

D+3.3

49

61

82

EVDD

EVDD

EVDD

EGND

EGND

EGND

27

35

50

96

122

114

EVDD

EVDD

EVDD

EGND

EGND

EGND

62

83

97

L6

144

132

EVDD

EVDD

EGND

EGND

115

123

DGND

ESC+3.3

86

26

34

17

EVDD

EVDD

EVDD

3
P

3
M

5

5

1
0

T

P61
P60
P76
P75

4
BUDO0/P73

D2/TRR2/P82

/SD3/TRR3/P83

RCKI/P71
RCKO/P70
_SYNC/P72

RR7/P87
RR6/P86
RR5/P85
RR4/P84

EGND

EGND

18

1

10

D+1.5

L5

ESC+1.5

FBMA-10-160808-601T

FBMA-10-160808-601T

TP91

C86

4V100uF

0.1uFC113

0.1uFC117

0.1uFC118

0.1uFC94

0.1uFC100

0.1uFC108

55

36

72

41

101

IVDD

IVDD

IVDD

IVDD

EVDD

_CS4/SD0/TRR0/P80

_CS1/SPICS/P62

A23/_SYNC/TRS7/P97

A22/TRS6/P96
A21/TRS5/P95
A20/TRS4/P94
A19/TRS3/P93
A18/TRS2/P92
A17/TRS1/P91
A16/TRS0/P90

AD15/PWM/P57
AD14/SPICK/P56
AD13/SPIDI/P55
AD12/SPIDO/P54

AD11/BUCK/P53

AD10/BULCK/P52

AD9/BUDO1/P51

_WAIT/P64

INT2/SD1/TRR1/P81

EA13/_CRD/P10

EA12/_WAIT/P22

EA11/ALE/P11

EA10/_CS1/P20

EA9/_CWR/P23

EA8/_CS3/P21

EA7/AD15/P37

EA6/AD13/P35

EA5/AD11/P33

EA4/AD9/P31

EA3/AD8/P30
EA2/AD10/P32
EA1/AD12/P34
EA0/AD14/P36

ED4/INT2/P04
ED3/_CS6/P03
ED2/_CS4/P02

ED1/A23/P01

ED0/A22/P00

_ECS/A16/P12

_ERAS/A17/P13
_ECAS/A18/P14

_EWE/A19/P15

EUDQM/A20/P16
ELDQM/A21/P17

IGND

EGND

IGND

IGND

IGND

109

37

73

100

42

0.1uFC96

108

141

IVDD

IVDD

IVDD

_CS3/P63

AD8/P50

AD7/P47
AD6/P46
AD5/P45
AD4/P44
AD3/P43
AD2/P42
AD1/P41
AD0/P40

ALE/P67
_CRD/P66
_CWR/P65

INT1

ED7/P07

ED6/P06

ED5/P05

IGND

IGND

IC7
UPD800402GJ-211-UEN-A(ESC)

138

ECK

121

68
69

124
125
126
127
128
129
130
131

53
54
56
57
58
59
60
63

43
44
45
46
47
48
51
52

64
65
66
67

120

78

22
24
21
28
23
25
29
31
33
39
40
38
32
30

11

20
19
16
14
13
12

15

2
3
4
5
6
7
8

DGND

DA_B_MUTE

LED_CHK_GRN

LED_CHK_RED

DA_A_MUTE

EA(7)
EA(6)
EA(5)
EA(4)
EA(3)
EA(2)
EA(1)
EA(0)

IN_B_DET

IN_A_DET
OUT_B_DET
OUT_A_DET

CODEC_PDN

<1E5>

<1F5>

<1E4>
<1E4>
<1E8>
<1E8>
<1H5>
<1D5>
<1H5>

<B5>
<B5>

<B5>

EA(7)
EA(6)
EA(5)
EA(4)
EA(3)
EA(2)
EA(1)
EA(0)

RA1
47

RA2

47

RA7

47

RA5

47

ESC+3.3

SDA
SCL

WP_PROG

DGND

ESC+3.3

10kR112

DGND

RA3

6543

47

27
18

RA4

6543

47

27
18

RA6

6543

47

27
18

S_ED(7)
S_ED(6)

6543

S_ED(5)

27

S_ED(4)

18

S_ED(3)
S_ED(2)

6543

S_ED(1)

27

S_ED(0)

18
18

27

6543

18
27

6543

For UPDATE

CN5
UnPop

1
2
3
4
5
6

10k

R118

10kR117

10k

10k

R123

R116

S_EA(9)

S_EA(12)

S_EA(8)

S_EA(10)

S_EA(7)
S_EA(0)
S_EA(6)
S_EA(1)

S_EA(5)
S_EA(2)
S_EA(4)
S_EA(3)

S_EA(13)
S_EA(11)

47R138

ESC+3.3

R126

<E5>

10k

10kR121

10kR122

R113

S_EA(12)
S_EA(13)

S_EA(11)
S_EA(10)
S_EA(9)
S_EA(8)
S_EA(7)
S_EA(6)
S_EA(5)
S_EA(4)
S_EA(3) S_ED(4)
S_EA(2)
S_EA(1)
S_EA(0)

S_EA(0:13)

Connect to SHASSIS

R125
1k

C79

0.01uF

DGND

S_ED(0:7)

20
21
36
35
22
34
33
32
31
30
29
26
25
24
23

19
18
17
16
39
15
38
37
40

SD+3.3

100k

SW_PDL

BA0
BA1
NC
A11
A10/AP
A9
A8
A7
A6
A5
A4
A3
A2
A1
A0

_CS
_RAS
_CAS
_WE
UDQM
LDQM
CLK
CKE
NC/RFU

1

TER3
UnPop

1

TER4
UnPop

TP111

TP114

DQ15
DQ14
DQ13
DQ12
DQ11
DQ10

DQ9
DQ8
DQ7
DQ6
DQ5
DQ4
DQ3
DQ2
DQ1
DQ0

VDD
VDD

VDD
VDDQ
VDDQ
VDDQ
VDDQ

VSSQ
VSSQ
VSSQ
VSSQ

VSS

VSS

VSS

IC9
K4S641632K-UC75000

C132
UnPop

C131
UnPop

VIO 160mm

GRN 160mm

1

TP111,TP114

53

S_ED(7)

51

S_ED(6)

50

S_ED(5)

48

S_ED(4)

47

S_ED(3)

45

S_ED(2)

44

S_ED(1)

42

S_ED(0)

13

S_ED(0)

11

S_ED(1)

10

S_ED(2)

8

S_ED(3)
7
5

S_ED(5)
4

S_ED(6)
2

S_ED(7)

27
14

1

49
43

9
3

52
46
12

6

54
41
28

0.1uFC92

DGND

0.1uFC120

0.1uFC106

SW BOARD

PWB F2927058R0 6/6
ASSY 75E593P0R0

TP115

TP112

D+3.3

FBMA-10-160808-601T

0.1uF

0.1uFC102

C99

0.1uF

C95

DGND

0.1uF

C97

L4

SD+3.3

C84

TP93

4V100uF

SW1
JM-0404#01

21

May. 2008 DD-7

22

May. 2008 DD-7

23

May. 2008 DD-7

MEMO