Xerox SB NS55EG Service Manual

Specification

Type 1 way, 1 speaker system

Speaker (s)

Full Range 8 cm cone type (6 Ω )

Impedance 6 Ω

Input power (IEC) 15 W (Max)

Output sound pressure 79.05 dB/W (1.0 m)

Frequency range 55 Hz to 25 kHz (-16 dB)

60 Hz to 20 kHz (-10 dB)

ORDER NO. MD0703017CE

Speaker System

SB-NS55EG

Colour

(S)... Silver Type

Dimensions (W x H x D) 127 x 178 x 228 mm

Mass 1.4 kg

Notes :

1. Specifications are subject to change without notice.

Mass and dimensions are approximate.

2. Total harmonic distortion is measured by the digital spectrum
analyzer.

CONTENTS

Page Page

3 Connection of the Speaker Cables

1 System Combination

1.1. System Breakdown

2 Assembling and Disassembling

2.1. Disassembly flow chart

2.2. Disassembly of Stand base

2.3. Disassembly of Net frame assembly

2.4. Disassembly of Woofer unit

2

2

4 Connection of the Wiring Diagram

5 Exploded view

3

3

4

4

5

5.1. Cabinet Parts Location

5.2. Packaging

6 Replacement Parts List

© 2007 Matsushita Electric Industrial Co. Ltd.. All
rights reserved. Unauthorized copying and
distribution is a violation of law.

10

11

7

8

9

9

SB-NS55EG

1 System Combination

1.1. System Breakdown

Note : The table below show the breakdown for speaker combinations used in main unit systems.

System SC-NS55DBEBS
Music center SA-NS55DBEBS
Front speakers SB-NS55EG-S

System SC-NS55E-S
Music center SA-NS55E-S
Front speakers SB-NS55EG-S

System SC-NS55EG-S
Music center SA-NS55EG-S
Front speakers SB-NS55EG-S

2

SB-NS55EG

2 Assembling and Disassembling

“ATTENTION SERVICER”

Some chassis components may have sharp edges. Be careful when disassembling and servicing.

1. This section describes procedures for checking the operation of the major printed circuit boards and replacing the main
components.

2. For reassembly after operation checks or replacement, reverse the respective procedures.

Special reassembly procedures are described only when required.

3. Select items from the following index when checks or replacement are required.

4. Refer to the Parts No. on the page of “Parts Location and Replacement Parts List” (Section 6), if necessary.

Below is the list of disassembly sections

· Disasse mbly of Stand base

· Disasse mbly of Net frame assembly

· Disasse mbly of Woofer unit

2.1. Disassembly flow chart

The following chart is the procedure for disassembling the casing and inside parts for internal inspection when carrying out the
servicing.

To assemble the unit, reverse the steps shown in the chart as below.

3

SB-NS55EG

2.2. Disassembly of Stand base

Step 1: Remove 4 screws.

2.3. Disassembly of Net frame
assembly

Step 2: Remove stand base as arrow shown.

Step 1: Upset the speaker cabinet as shown above.

Step 2: Insert the flathead screwdriver above the cloth into the

groove of speaker cabine t.

Step 3: Push the net frame unit with the flathead screwdriver
as arrow shown.

Caution: Do not exert too much force on the bosses and holes
as it may damage the net frame unit.

4