Xerox SB HW950P Service Manual

Specification
Type 1 way, 1 speaker system (Bass reflex)
Speaker unit(s) Impedance 6
Woofer 17 cm (6-3/4”) cone type
Input power (IEC) 250 W (Max)
Output sound pressure 81 dB/W (1.0 m)
Frequency range 26 Hz - 220 Hz (-16 dB)
32 Hz - 180 Hz (-10 dB)
Dimensions (W x H x D) 180 x 445 x 330 mm
ORDER NO. MD0702012CE
A6
Speaker System
SB-HW950P
Colour
(K)... Black Type
Mass 5.5 kg (12.2 lbs)
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
1 System Combination
1.1. System Breakdown
2 Assembling and Disassembling
2.1. Disassembly flow chart
2.2. Disassembly of Net frame assembly
2.3. Disassembly of Woofer
2
3 Connection of the Speaker Cables 5
4 Connection of the Wiring Diagram
2
3
5 Exploded view
3
4
4
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.
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SB-HW950P
1 System Combination
1.1. System Breakdown
Note :
The diagrams below show the breakdown for speaker combinations used in main unit systems.
SB-PT950P-K consists of SB-HF950P-K (x2), SB-HS950P-K (x2), SB-HC950P-K (x1)
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SB-HW950P
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 Net frame assembly
· Disasse mbly of Woofer
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.
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SB-HW950P
2.2. Disassembly of Net frame assembly
Step 1: Insert a flathead screwdriver above the cloth at the
grooves of the net frame assembly.
2.3. Disassembly of Woofer
Follow (step 1) to (step 2) in item 2.2.
Step 1: Remove 4 screws.
Step 2: Apply light force along the bosses to push up the net
frame assembly.
Step 2: Detach the blue (-) and white (+) wires.
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SB-HW950P
3 Connection of the Speaker Cables
· 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 speake r 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 (white) wires to positive (+) terminals and negative (blue) wires to negative (-) terminals.
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SB-HW950P
Positioning the speakers
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Note on speaker use
· Use only supplied speakers.
Using other speakers can damage the unit, and sound quality will be negatively affected.
· You can damage your speakers and shorten their useful life if you play sound at high levels over extended periods.
· Reduce the volume in the following cases to avoid damage.
When playing distorted sound.
− −
When the speakers are reverberating due to a record player, noise from FM broadcasts, or continuous signals from an
− −
oscillator, test disc, or electronic instrument.
When adjusting the sound quality.
− −
When turning the unit on or off.
− −
If irregular coloring occurs on your television
The front and center speakers are designed to be used close to a television, but the picture may be affected with some televisions and setup combinations.
If this occurs, turn the television off for about 30 minutes.
The demagnetizin g function of the television should correct the problem.
If it persists, move the speakers further away from the television.
SB-HW950P
Caution
Do not touch the front netted area of the speakers. Hold by the sides.
e.g. Center speaker
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SB-HW950P
4 Connection of the Wiring Diagram
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5 Exploded view
5.1. Cabinet Parts Location
SB-HW950P
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SB-HW950P
5.2. Packaging
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6 Replacement Parts List
Notes :
· Important safety notice :
When replacing any of these components, be sure to use only manufacturer’s specified parts shown in the parts list.
· [M] markings in the Remarks columns indicates parts supplied by PAVCSG.
Ref.
No.
1 RYQX0360-K SPK. BOX ASS’Y [M]
1-1 XTB3+16AFJK SCREW [M]
2 RYBX0161-K NET FRAME ASS’Y [M]
3 RMQX0179-L EVA PACKING (WOOFER) [M]
4 RKA0072-KJ LEG CUSHION [M]
5 RGNX0425-K1 SPEC LABEL [M]
6 XTB4+14AFJK SCREW (BLACK) [M]
P1 RPNX0458 POLYFOAM [M]
P2 RPFX0201 MIRAMAT BAG [M]
Part No. Part Name & Description Remarks
CABINET AND CHASSIS
PACKING MATERIALS
SPEAKER
SB-HW950P
SP1 L0AA17A00004 WOOFER UNIT [M]
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FLE0702W/S /D
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