Panasonic SB-NS55EG User manual

Type 1 way, 1 speaker system
Speaker (s)
Full Range 8 cm cone type (6 Ω)
Impedance 6Ω
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)
1 System Combination 2
1.1. System Breakdown 2
2 Assembling and Disassembling 3
2.1. Disassembly flow chart 3
2.2. Disassembly of Stand base 4
2.3. Disassembly of Net frame assembly 4
2.4. Disassembly of Woofer unit 5
©2007 Matsushita Electric Industrial Co. Ltd.. All
rights reserved. Unauthorized copying and
distribution is a violation of law.
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.
3 Connection of the Speaker Cables 7
4 Connection of the Wiring Diagram 8
5 Exploded view 9
5.1. Cabinet Parts Location 9
5.2. Packaging 10
6 Replacement Parts List 11
Speaker System
Specification
CONTENTS
Page Page
ORDER NO. MD0703017CE

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
· Disassembly of Stand base
· Disassembly of Net frame assembly
· Disassembly 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.
Step 2: Remove stand base as arrow shown.
2.3. Disassembly of Net frame
assembly
Step 1: Upset the speaker cabinet as shown above.
Step 2: Insert the flathead screwdriver above the cloth into the
groove of speaker cabinet.
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
SB-NS55EG

Step 4: Remove net frame unit as arrow shown.
Step 5: Remove net frame assembly as arrow shown.
2.4. Disassembly of Woofer unit
Follow (step 1) to (step 4) in item 2.3.
Step 1: Remove 4 screws.
Step 2: Insert the steel rule in between the woofer unit and
speaker cabinet to push out the woofer unit.
5
SB-NS55EG

Step 3: Detach the red (+) and black (-) wires.
Step 4: Remove woofer unit as arrow shown.
6
SB-NS55EG

· Be sure to connect speaker cables before connecting the
AC power supply cord.
· The load impedance of any speaker used with this unit must
be 6 Ω.
· Be sure to connect the cable from the right speaker to the
right terminal and the cable from the left speaker to the left
terminal.
1. Twist and pull off the vinyl tip of the speaker cords. If the
speaker cords do not have vinyl tips, connect them directly
to the terminals. Make sure the bare ends of the wires are
not unravelled.
2. Insert the wire to the rear panel of the unit and close the
lever.
Notes :
· To prevent damage to circuitry, never short-circuit positive
(+) and negative (-) speaker wires.
· Be sure to connect only positive (red) wires to positive (+)
terminals and negative (black) wires to negative (-)
terminals.
Placement of speakers
3 Connection of the Speaker Cables
7
SB-NS55EG

4 Connection of the Wiring Diagram
8
SB-NS55EG

5 Exploded view
5.1. Cabinet Parts Location
SB-NS55EG
9

5.2. Packaging
SB-NS55EG
10