This document is a service manual for the Panasonic Subwoofer System SB-W335EG, available in a silver type (S). It provides detailed information for technicians on the device's specifications, connection, disassembly, assembly, and replacement parts.
Function Description
The SB-W335EG is an active subwoofer system designed to enhance the low-frequency audio output of compatible Panasonic home theater systems. It operates as a 1-way, 1-speaker bass-reflex system, providing deep and resonant bass. The subwoofer is typically integrated into a larger speaker setup, such as the SC-HT330 or SC-HT335 series, to deliver a more immersive audio experience.
Important Technical Specifications
- Type: 1-way, 1 speaker system (Bass-reflex)
- Impedance: 4 Ω
- Subwoofer Unit: 16 cm Cone type
- Input Power (IEC): 90 W (Max)
- Output Sound Pressure: 80 dB/W (1.0 m)
- Frequency Range:
- 29 Hz - 173 Hz (-16 dB)
- 33 Hz - 148 Hz (-10 dB)
- Dimensions (W x H x D): 175 mm x 345 mm x 295 mm
- Mass: 3.3 kg
The manual notes that specifications are subject to change without notice and that mass and dimensions are approximate.
The SB-W335EG subwoofer is compatible with several Panasonic music centers and speaker systems, including:
- For HT330 Series:
- SC-HT330EB-S (Music Center: SA-HT330EB-S)
- SC-HT330GCPS (Music Center: SA-HT330GCPS)
- Front Speaker: SB-FS335EG-S
- Surround Speaker: SB-FS335EG-S
- Center Speaker: SB-PC335EG-S
- SC-HT330GCSS (Music Center: SA-HT330GCSS)
- Front Speaker: SB-FS335EG-S
- Surround Speaker: SB-FS335EG-S
- Center Speaker: SB-PC335EG-S
- SC-HT330GCTS (Music Center: SA-HT330GCTS)
- Front Speaker: SB-FS335EG-S
- Surround Speaker: SB-FS335EG-S
- Center Speaker: SB-PC335EG-S
- SC-HT330GN-S (Music Center: SA-HT330GN-S)
- Front Speaker: SB-FS335EG-S
- Surround Speaker: SB-FS335EG-S
- Center Speaker: SB-PC335EG-S
- SC-HT330GS-S (Music Center: SA-HT330GS-S)
- Front Speaker: SB-FS335EG-S
- Surround Speaker: SB-FS335EG-S
- Center Speaker: SB-PC335EG-S
- SC-HT330GC-S (Music Center: SA-HT330GC-S)
- Front Speaker: SB-FS335EG-S
- Surround Speaker: SB-FS335EG-S
- Center Speaker: SB-PC335EG-S
- For HT335 Series:
- SC-HT335E-S (Music Center: SA-HT335E-S)
- Front Speaker: SB-FS335EG-S
- Surround Speaker: SB-FS335EG-S
- Center Speaker: SB-PC335EG-S
- SC-HT335EE-S (Music Center: SA-HT335EE-S)
- Front Speaker: SB-FS335EG-S
- Surround Speaker: SB-FS335EG-S
- Center Speaker: SB-PC335EG-S
- SC-HT335EG-S (Music Center: SA-HT335EG-S)
- Front Speaker: SB-FS335EG-S
- Surround Speaker: SB-FS335EG-S
- Center Speaker: SB-PC335EG-S
Usage Features
The primary usage feature of the SB-W335EG is its role as an active subwoofer, meaning it has a built-in amplifier and requires a power connection in addition to the audio signal. It is designed to be connected to a main unit (music center) via speaker cables.
Connection of Speaker Cables:
- Precaution: Always connect speaker cables before connecting the AC power supply cord to prevent damage.
- Impedance: The load impedance of any speaker used with this unit must be 4 Ω.
- Polarity: It is crucial to connect positive (+) (white) wires to positive (+) terminals and negative (-) (blue) wires to negative (-) terminals. Incorrect connection can damage the speakers.
- Cable Preparation:
- Strip off the outer covering of the speaker cables and twist the center conductor. Ensure bare ends are not unraveled.
- Insert the prepared wire into the rear panel terminal of the unit and close the lever.
- Wiring Diagram: The manual provides a clear wiring diagram showing connections for the subwoofer (SB-W335), center speaker (SB-PC335), front speakers (SB-FS335), and surround speakers (SB-FS335) to the main unit (SA-HT330/335). Speaker-cable stickers are provided for easy identification.
Maintenance Features
The service manual outlines detailed disassembly and assembly procedures for technicians, focusing on the Front Cabinet Assembly and the Woofer.
1. Disassembly Process:
2. Assembly Process (Reverse of Disassembly):
- 1.1.1. Assembly of the Front Cabinet Assembly:
- Step 1: Clean any remaining glue from the 8 bosses on the Front Cabinet Assembly and apply new, normal glue.
- Step 2: Firmly replace the Front Cabinet Assembly back onto the Speaker Cabinet Assembly.
Replacement Parts List:
The manual includes a comprehensive list of replacement parts, categorized into "CABINET AND CHASSIS," "ACCESSORIES," and "PACKING MATERIALS." Each part is identified by a Ref. No., Part No., Part Name & Description, and Remarks. Parts marked with "[M]" in the Remarks column are supplied by PAVCSG (Panasonic AVC Networks Singapore).
- Cabinet and Chassis:
- RYBX0100-S: FRONT CABINET ASS'Y
- RFKHBW335EGS: SPK CABINET ASS'Y
- RMVX0090: WOOFER GUARD
- RGNX0287-K: SPEC LABEL
- RKA0072-KJ: LEG CUSHION
- XTB4+25AF-K: SCREW
- RMFX0044: HIMELON (LONG)
- RMFX0045: HIMELON (SHORT)
- RMQX0135-1: EVA PACK (PORT)
- RMQX0136: EVA PACK (WOOFER)
- Accessories:
- REEX0449B-1J: SPEAKER CORD 4M
- REEX0449E-1J: SPEAKER CORD 8M
- Packing Materials:
- RPNX0327: POLYFOAM SET (3PCS)
- RPFX0138: MIRAMAT BAG
- Speaker:
- L0AA16A00017: WOFFER UNIT (SP1)
Important Safety Notice for Repair:
The manual emphasizes that this service information is for experienced repair technicians only. It warns against non-technical individuals attempting repairs due to potential dangers, stating that products powered by electricity should only be serviced by experienced professional technicians to prevent serious injury or death. When replacing components, technicians must use only manufacturer's specified parts as shown in the parts list.
Packaging Information:
A diagram illustrates the packaging for the SB-HT335EG-S and SB-W335EG-S, showing the placement of the subwoofer (SB-W335EG-S), front speakers (SB-FS335EG-S), center speaker (SB-PC335EG-S), speaker cords (4M and 8M), and polyfoam packing materials (P1, P2).
Need help?
To Next Page
General