Read Panasonic SB-PF870GC / SB-PC870GC / SB-PS870GC / SB-WVK870GC Service Manual online
SB-PF870GC
Type
2 way, 2 speaker system (Bass reflex)
Speaker unit(s)
Impedance 3
Ω
1. Tweeter
6 cm Cone type
2. Woofer
16 cm Cone type
Input power (IEC)
130 W (Max)
Output sound pressure
83 dB/W (1.0 m)
Frequency range
49 Hz - 28 kHz (-16 dB)
52 Hz - 26 kHz (-10 dB)
Dimensions (W x H x D)
221 mm x 401 mm x 244 mm
Mass
4.2 kg
SB-PC870GC
Type
1 way, 1 speaker system (Bass reflex)
Speaker unit(s)
Impedance 3
Ω
1. Full range
6.5 cm Cone type
Input power (IEC)
125 W*
Output sound pressure
80 dB/W (1.0 m)
Frequency range
95 Hz - 25 kHz (-16 dB)
110 Hz - 22 kHz (-10 dB)
Dimensions (W x H x D)
270 mm x 94 mm x 95 mm
Mass
0.85 kg
SB-PF870GC
SB-PC870GC
SB-PS870GC
SB-WVK870GC
Colour
(K)... Black Type
(K)... Black Type
SB-PS870GC
Type
1 way, 1 speaker system (Bass reflex)
Speaker unit(s)
Impedance 3
Ω
1. Full range
6.5 cm Cone type
Input power (IEC)
125 W*
Output sound pressure
80 dB/W (1.0 m)
Frequency range
95 Hz - 25 kHz (-16 dB)
110 Hz - 22 kHz (-10 dB)
Dimensions (W x H x D)
270 mm x 94 mm x 95 mm
Mass
0.9 kg
SB-WVK870GC
Type
1 way, 1 speaker system (Bass reflex)
Speaker unit(s)
Impedance 6
Ω
1. Woofer
25 cm Cone type
Input power (IEC)
250 W (Max)
Output sound pressure
82 dB/W (1.0 m)
Frequency range
48 Hz - 250 Hz (-16 dB)
50 Hz - 200 Hz (-10 dB)
Dimensions (W x H x D)
320 mm x 411 mm x 330 mm
Speaker System
Specification
ORDER NO. MD0806011CE
Mass
7.2 kg
Note :
1. Specifications are subject to change without notice.
2. Total harmonic distortion is measured by the digital spectrum
analyzer.
analyzer.
* : Rating with low-cut filter equipped amplifier.
2
SB-PF870GC / SB-PC870GC / SB-PS870GC / SB-WVK870GC
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 “Replacement Parts List” (Section 6), if necessary.
Below is the list of disassembly and assembly sections
• For SB-PF870
Disassembly of Speaker cabinet assembly
Disassembly of Tweeter speaker (SP1)
Disassembly of Woofer speaker (SP2)
Disassembly of Tweeter ornament
Assembly of Tweeter ornament
• For SB-PC870/PS870
Disassembly of Rear cabinet assembly
Disassembly of Full range speaker (SP1)
• For SB-WVK870
Disassembly of Front panel assembly
Disassembly of Woofer speaker (SP1)
Assembly of Speaker unit
• For SB-PF870/PC870/PS870/WVK870
Disassembly of Speaker connector housing
3
SB-PF870GC / SB-PC870GC / SB-PS870GC / SB-WVK870GC
1.1. For SB-PF870
1.1.1. Disassembly of Speaker cabinet
assembly
Step 1: Remove 4 screws.
Step 2: Upset the speaker unit.
Step 3: Insert a flathead screwdriver into the grooves of
speaker unit.
speaker unit.
Step 4: Insert a steel rule in between the speaker cabinet assy
and front panel.
and front panel.
Step 5: Push the flathead screwdriver downwards as arrow
shown.
shown.
Caution:
Do not exert strong force as it may damage the front panel.
Step 6: Apply light force along the bosses (clockwise on right
side), (counter clockwise on left side) to push up the front
panel.
side), (counter clockwise on left side) to push up the front
panel.
Step 7: Detach the front panel.
4
SB-PF870GC / SB-PC870GC / SB-PS870GC / SB-WVK870GC