Panasonic SB-PC740P Service Manual ▷ View online
Type
1 way, 2 speaker system (Bass-ref.)
Speaker unit
Impedance 4
Ω
Full range
6.5 cm (2-
1
/
2
”) Cone type
Full range
6.5 cm (2-
1
/
2
”) Cone type
Input power (IEC)
320 W* (Max)
Output sound pressurelevel
84 dB/W (1.0 m)
Frequency range
105 Hz - 25 kHz (-16 dB)
125 Hz - 22 kHz (-10 dB)
Dimensions (W x H x D)
270 mm x 92 mm x 95.4 mm
10-
5
/
8
” x 3-
5
/
8
” x 3-
3
/
4
”
Mass
1.25 kg (2.75 lb.)
*Rating with low-cut filter equipped amplifier
Notes :
1.
Specifications are subject to change without notice.
Mass and dimensions are approximate.
Mass and dimensions are approximate.
2.
Total harmonic distortion is measured by the digital spectrum
analyzer.
analyzer.
n System : SC-HT740P-S
Music Center : SA-HT740P-S
Front Speaker : SB-FS740P-S
Surround Speaker : SB-FS741P-S
Center Speaker : SB-PC740P-S
Subwoofer : SB-W740P-S
1 Assembling and Disassembling
3
2005 Co. .
SB-PC740P
Colour
(S)... Silver Type
n System : SC-HT740PC-S
Music Center : SA-HT740PC-S
Front Speaker : SB-FS740P-S
Surround Speaker : SB-FS741P-S
Center Speaker : SB-PC740P-S
Subwoofer : SB-W740P-S
n System : SC-HT740PX-S
Music Center : SA-HT740PX-S
Front Speaker : SB-FS740P-S
Surround Speaker : SB-FS741P-S
Center Speaker : SB-PC740P-S
Subwoofer : SB-W740P-S
n System : SC-HT740GCPS
Music Center : SA-HT740GCPS
Front Speaker : SB-FS740P-S
Surround Speaker : SB-FS741P-S
Center Speaker : SB-PC740P-S
Subwoofer : SB-W740P-S
1.1.
Disassembly flow chart
3
Speaker System
Specification
CONTENTS
Page
Page
ORDER NO. MD0512488C7
A6
1.2.
Disassembly of Front Panel Assembly
3
1.3.
Disassembly of Woofer 1
4
1.4.
Disassembly of Woofer 2
4
1.5.
Disassembly of Terminal Jack
5
2 Connection of the Speaker Cables
6
3 Connection of Wiring Diagram
9
4 Exploded view
10
4.1.
Cabinet Parts Location
10
4.2.
Packaging
11
5 Replacement Parts List
12
2
SB-PC740P
Step 1: Remove 6 screws from the Rear Cabinet Assembly.
1 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 5), if necessary.
4. Refer to the Parts No. on the page of “Parts Location and Replacement Parts List” (Section 5), if necessary.
Below is the list of disassembly sections
· Disassembly of Front Panel Assembly
· Disassembly of Woofer 1
· Disassembly of Woofer 2
· Disassembly of Terminal Jack
· Disassembly of Woofer 1
· Disassembly of Woofer 2
· Disassembly of Terminal Jack
1.1. 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.
servicing.
To assemble the unit, reverse the steps shown in the chart as below.
1.2. Disassembly of Front Panel Assembly
3
SB-PC740P
Step 2: Insert an Allen key into the top hole of the Rear Cabinet
Assembly and push the Front Panel Assembly as arrow shown.
Assembly and push the Front Panel Assembly as arrow shown.
1.3. Disassembly of Woofer 1
Follow (step 1) to (step 2) in Item 1.2.
Step 1: Detach the (+) black and (-) gray wires from the Woofer
1.
1.
Step 2: Remove 4 screws from the Woofer 1.
1.4. Disassembly of Woofer 2
Follow (step 1) to (step 2) in Item 1.2.
Step 1: Detach the (+) red and (-) blue wires from the Woofer
2.
2.
4
SB-PC740P