Read Panasonic SB-HW250E Service Manual online
Type
1 way, 1 speaker system (Bass reflex)
Speaker unit(s)
Impedance 3
Ω
Woofer
16 cm cone type
Input power (IEC)
125 W (Max)
Output sound pressure
80 dB/W (1.0 m)
Frequency range
32 Hz to 220 Hz (-16 dB)
38 Hz to 180 Hz (-10 dB)
SB-HW250E
Colour
(S)... Silver Type
Dimensions (W x H x D)
183 x 396 x 267 mm
Mass
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.
analyzer.
Speaker System
Specification
ORDER NO. MD0704024CE
1 System Combination
1.1. System Breakdown
Note :
The tables below show the breakdown for speaker combinations used in main unit systems.
1.1.1. For SB-HW250E-S
System SC-PT250E-S
Music center
Music center
SA-PT250E-S
Front speaker
SB-HF250E-S
Surround speaker
SB-HS250E-S
Center speaker
SB-HC250E-S
Subwoofer
SB-HW250E-S
System SC-PT250EE-S
Music center
Music center
SA-PT250EE-S
Front speaker
SB-HF250E-S
Surround speaker
SB-HS250E-S
Center speaker
SB-HC250E-S
Subwoofer
SB-HW250E-S
System SC-PT250EG-S
Music center
Music center
SA-PT250EG-S
Front speaker
SB-HF250E-S
Surround speaker
SB-HS250E-S
Center speaker
SB-HC250E-S
Subwoofer
SB-HW250E-S
System SC-PT250GC-S
Music center
Music center
SA-PT250GC-S
Front speaker
SB-HF250E-S
Surround speaker
SB-HS250E-S
Center speaker
SB-HC250E-S
Subwoofer
SB-HW250E-S
System SC-PT250GCP-S
Music center
Music center
SA-PT250GCP-S
Front speaker
SB-HF250E-S
Surround speaker
SB-HS250E-S
Center speaker
SB-HC250E-S
Subwoofer
SB-HW250E-S
Note: SB-PT250E-S consists of SB-HF250E-S (x2), SB-HS250E-S (x2), SB-HC250E-S (x1)
System SC-PT250GCSS-S
Music center
Music center
SA-PT250GCSS-S
Front speaker
SB-HF250E-S
Surround speaker
SB-HS250E-S
Center speaker
SB-HC250E-S
Subwoofer
SB-HW250E-S
System SC-PT250GCTS-S
Music center
Music center
SA-PT250GCTS-S
Front speaker
SB-HF250E-S
Surround speaker
SB-HS250E-S
Center speaker
SB-HC250E-S
Subwoofer
SB-HW250E-S
System SC-PT250GS-S
Music center
Music center
SA-PT250GS-S
Front speaker
SB-HF250E-S
Surround speaker
SB-HS250E-S
Center speaker
SB-HC250E-S
Subwoofer
SB-HW250E-S
2
SB-HW250E
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 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 Front cabinet assembly
•
Disassembly of Woofer (SP1)
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.
servicing.
To assemble the unit, reverse the steps shown in the chart as below.
3
SB-HW250E
2.2. Disassembly of Front Cabinet
Assembly
Step 1: Upset the unit as shown above.
Step 2: Insert a steel rule into the grooves of the speaker unit.
Push the steel rule forward and backward as arrow shown.
Push the steel rule forward and backward as arrow shown.
Step 3: Insert a flathead screwdriver into the grooves as arrow
shown. Ensure that the screwdriver is above the steel rule.
shown. Ensure that the screwdriver is above the steel rule.
Step 4: Use the screwdriver to slightly push up the front cabinet
assembly as arrow shown and insert the wood chip.
assembly as arrow shown and insert the wood chip.
Step 5: At the boss area push up as arrow shown to open the
boss.
boss.
Caution:
Do not exert strong force as it may damage the front cabinet
assembly.
assembly.
4
SB-HW250E