Sony SS-MSP7M - User Manual

Questions and Answers

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michellegeorgeAug 19, 2025
Why is there no sound, no matter which equipment is selected, or only a very low-level sound is heard from my Sony SS-MSP7M Home Theater System?
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  Gary NicholsAug 19, 2025
  If you experience no sound or very low sound from your Sony Home Theater System, regardless of the selected equipment, consider the following: * Verify that all connecting cords are fully inserted into the input/output jacks of the receiver, speakers, and equipment. * Ensure both the receiver and all equipment are powered on. * Check that the MASTER VOLUME is not set to “VOL MIN”. * Press MUTING on the remote control to disable the muting function. * Make sure you have connected to both the L and R jacks of an analog equipment. * Adjust the speaker level. * Check that the speaker cords are connected correctly and securely. * Note that some discs have no Dolby Digital Surround EX information.
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Melanie JohnsonAug 21, 2025
What to do if the remote control for my Sony Home Theater System does not function?
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  Elizabeth HerringAug 21, 2025
  If the remote control for your Sony Home Theater System isn’t working, try these steps: * Point the remote control at the remote control sensor on the receiver. * Remove any obstacles between the remote control and the receiver. * Replace the batteries in the remote control with new ones if they are weak.
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Michael BaileyAug 25, 2025
What to do if there is no sound from a specific equipment connected to my Sony SS-MSP7M?
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  Bryan BennettAug 25, 2025
  If there is no sound from a specific equipment connected to your Sony Home Theater System, check the following: * Ensure the equipment is correctly connected to the audio input jacks for that equipment. * Verify the connecting cord(s) are fully inserted into the jacks on both the receiver and the equipment. * Check the INPUT MODE. * Check the setting of “AUDIO.OUT” in the HDMI menu. * Confirm the equipment is correctly connected to the HDMI jack for that equipment. * Note that you cannot listen to Super Audio CD by connecting HDMI.
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Barbara JonesAug 26, 2025
Why are the left and right sounds unbalanced or reversed on my Sony SS-MSP7M?
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  Brandon ParkerAug 26, 2025
  If the left and right sounds are unbalanced or reversed on your Sony Home Theater System, check that the speakers and equipment are connected correctly and securely. You can also adjust the level parameters using the LEVEL menu.
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andrew25Aug 28, 2025
What to do if no image appears on my Sony SS-MSP7M TV?
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  Pamela RossAug 28, 2025
  If no image appears on the TV when using your Sony Home Theater System, try the following: * Select the appropriate input using the input buttons. * Set your TV to the appropriate input mode. * Move your audio equipment away from the TV. * Ensure cables are correctly and securely connected to equipment. * Set up the playback equipment, depending on the equipment. * Use a High Speed HDMI cable, especially for 1080p, Deep Color, or 3D transmission.
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Derek HaydenAug 30, 2025
Why does my Sony SS-MSP7M Home Theater System turn off automatically?
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  Ivan CookeAug 30, 2025
  Your Sony Home Theater System receiver might be turning off automatically because “AUTO.STBY” is set to “STBY ON”, or the Sleep Timer function is active.
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jenniferkempSep 1, 2025
What does USB FAIL mean on my Sony SS-MSP7M and what to do?
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  Debra HigginsSep 1, 2025
  If your Sony Home Theater System displays “USB FAIL”, it indicates: * An over current from the USB port was detected. Check the USB device, then unplug it and turn on the power again. * Irregular current is output to the speakers, or the receiver is covered and ventilation holes are blocked. Remove the object covering the upper panel of the receiver, check the speaker connection, and turn on the power again.
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Connor EdwardsSep 3, 2025
What to do if recording cannot be carried out on my Sony SS-MSP7M Home Theater System?
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  bridgetlopezSep 3, 2025
  If you cannot record with your Sony Home Theater System, please check the following: * Verify that the equipment is connected correctly. * Select the source equipment using the input buttons. * Note that audio input signals via HDMI IN and DIGITAL IN jacks cannot be recorded. * The source may contain copyright protection to prevent recording.
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Eric CookSep 5, 2025
Why is the FM reception poor on my Sony SS-MSP7M Home Theater System?
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  Tamara SmithSep 5, 2025
  To improve poor FM reception on your Sony Home Theater System, use a 75-ohm coaxial cable to connect the receiver to an outdoor FM antenna.
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Cindy BowmanSep 7, 2025
What to do if the Control for HDMI function does not work on my Sony SS-MSP7M Home Theater System?
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  Jessica HamiltonSep 8, 2025
  If the Control for HDMI function is not working on your Sony Home Theater System, verify the following: * Check the HDMI connection. * Make sure “CTRL.HDMI” is set to “CTRL ON” in the HDMI menu. * Ensure the connected equipment is compatible with the Control for HDMI function.

This document is a service manual for the Sony SS-CNP7M/MSP2M/MSP3M/MSP7M/SRP7M series of speaker systems, including the SS-CRP2M/CRP3M/CRP5M/CRP7M models. It provides detailed specifications, disassembly procedures, and parts lists for these audio components.

Function Description

The SS-CNP7M/MSP2M/MSP3M/MSP7M/SRP7M series comprises various speaker types designed for home theater systems, specifically for use with Sony HT-M series models. These speakers are configured to deliver a comprehensive audio experience, covering front, center, surround, and surround back channels.

SS-CNP7M: This is the center speaker, primarily used in HT-M3, HT-M5, and HT-M7 systems. Its function is to reproduce dialogue and central sound elements, ensuring clear vocal delivery in a home theater setup.
SS-MSP2M: This model serves as the front speaker for the HT-M2 system. Front speakers are crucial for establishing the primary soundstage and delivering the main audio content.
SS-MSP3M: This speaker has a dual role: it functions as the front speaker for the HT-M3 system and as a surround speaker for the HT-M7 system. Its versatility allows it to contribute to both the main soundstage and the immersive surround sound field.
SS-MSP7M: Designed as the front speaker for the HT-M5 and HT-M7 systems, this model is responsible for delivering powerful and detailed main audio, forming the core of the sound experience.
SS-SRP7M: This speaker is dedicated to surround sound. It acts as the surround speaker for HT-M2, HT-M3, and HT-M5 systems, and as the surround back speaker for the HT-M7 system. Surround speakers are essential for creating an enveloping audio environment, placing the listener within the action.

The SS-CRP series models represent combinations of these individual speakers:

SS-CRP2M: Composed of SS-MSP2M and SS-SRP7M, likely forming a basic front and surround setup.
SS-CRP3M: Composed of SS-MSP3M, SS-CNP7M, and SS-SRP7M, indicating a more comprehensive 3.1 or 5.1 channel configuration.
SS-CRP5M: Composed of SS-MSP7M, SS-CNP7M, and SS-SRP7M, suggesting a higher-end configuration with powerful front speakers.
SS-CRP7M: Composed of SS-MSP7M, SS-CNP7M, SS-MSP3M, and SS-SRP7M, representing a full-fledged multi-channel home theater system, possibly a 7.1 setup.

These speaker systems are available in different regional models:

Mexican Model: SS-CNP7M/MSP3M/SRP7M
E Model / Australian Model: SS-CNP7M/MSP3M/MSP7M/SRP7M
Argentina Model: SS-CNP7M/MSP2M/MSP3M/MSP7M/SRP7M

Important Technical Specifications

The manual provides detailed specifications for each speaker model, including speaker system type, driver configuration, impedance, and physical dimensions.

SS-MSP2M (Front speaker for HT-M2):

Speaker system: 2-way, 2-driver, Bass reflex. This configuration uses two distinct drivers (woofer and tweeter) to handle different frequency ranges, with a bass reflex port to enhance low-frequency response.
Speaker unit:
- Woofer: 160 mm, cone type. The woofer handles the lower and mid-range frequencies.
- Tweeter: 25 mm, horn type. The tweeter handles high frequencies, with a horn design to improve directivity and efficiency.
Rated Impedance: 6 ohms. This is a common impedance for home audio speakers, compatible with most AV receivers.
Dimensions (width/height/depth): Approximately 280 mm x 485 mm x 290 mm (with foot). These dimensions indicate a relatively compact bookshelf or stand-mounted speaker.
Mass: Approximately 7.3 kg.

SS-MSP3M (Front speaker for HT-M3 / Surround speaker for HT-M7):

Speaker system: 2-way, 2-driver, Bass reflex. Similar to the MSP2M, offering a balanced sound profile.
Speaker unit:
- Woofer: 160 mm, cone type.
- Tweeter: 25 mm, horn type.
Rated Impedance: 6 ohms.
Dimensions (width/height/depth): Approximately 280 mm x 885 mm x 265 mm (with foot). This indicates a taller, floor-standing design compared to the MSP2M, suitable for front or dedicated surround placement.
Mass: Approximately 13.0 kg.

SS-MSP7M (Front speaker for HT-M7/HT-M5):

Speaker system: 2-way, 3-driver, Bass reflex. This configuration includes an additional driver, likely two woofers, for enhanced bass and mid-range performance, making it a more powerful front speaker.
Speaker unit:
- Woofer: 200 mm, cone type x 2. Two larger woofers contribute to a more robust low-frequency output.
- Tweeter: 25 mm, horn type.
Rated Impedance: 6 ohms.
Dimensions (width/height/depth): Approximately 280 mm x 925 mm x 265 mm (with foot). This is the tallest and most substantial of the front speakers, designed for high-performance systems.
Mass: Approximately 15.0 kg.

SS-CNP7M (Center speaker for HT-M7/HT-M5/HT-M3):

Speaker system: Full range, Bass reflex, Magnetically shielded. "Full range" indicates that a single driver handles a wide frequency spectrum, while "magnetically shielded" ensures that the speaker can be placed near CRT televisions without causing interference.
Speaker unit:
- Woofer: 100 mm, cone type.
Rated Impedance: 6 ohms.
Dimensions (width/height/depth): Approximately 430 mm x 182 mm x 178 mm (with foot). Its wider, shallower design is typical for center channel speakers, allowing it to fit under a TV or display.
Mass: Approximately 3.3 kg.

SS-SRP7M (Surround back speaker for HT-M7 / Surround speaker for HT-M5/HT-M3/HT-M2):

Speaker system: Full range, Closed box. A "closed box" (acoustic suspension) design typically provides tighter, more accurate bass response, suitable for surround effects.
Speaker unit:
- Woofer: 100 mm, cone type.
Rated Impedance: 6 ohms.
Dimensions (width/height/depth): Approximately 280 mm x 235 mm x 162 mm (with foot). These compact dimensions are ideal for discreet placement as surround speakers.
Mass: Approximately 2.4 kg.

Usage Features

The speakers are designed to integrate seamlessly into Sony HT-M series home theater systems. Their specific roles (front, center, surround) are tailored to create an immersive audio experience.

Compatibility: Explicitly designed for various HT-M series models (HT-M2, HT-M3, HT-M5, HT-M7), ensuring optimal performance and system synergy.
Magnetic Shielding (SS-CNP7M): The center speaker's magnetic shielding is a key feature for older home theater setups, preventing picture distortion on CRT televisions when placed in close proximity. While less critical for modern LCD/LED displays, it still indicates a design consideration for versatile placement.
Bass Reflex Design: Most models utilize a bass reflex (ported) design, which enhances low-frequency output and efficiency, providing a more impactful bass response without requiring larger drivers.
2-way and 3-driver Configurations: The multi-driver designs (2-way, 2-driver; 2-way, 3-driver) ensure that different frequency ranges are handled by specialized drivers, leading to clearer sound reproduction across the audio spectrum.
Horn Type Tweeters: The use of horn-type tweeters in many models improves the efficiency and directivity of high-frequency sounds, contributing to a more dynamic and detailed treble.
Regional Models: The availability of different model configurations for Mexican, E, Australian, and Argentinian markets suggests regional adaptations or bundling options to cater to diverse consumer needs and market demands.

Maintenance Features

The service manual primarily focuses on disassembly and parts replacement, providing essential information for technical maintenance and repair.

Disassembly Procedures: The manual outlines specific, numerical order steps for disassembling the speaker systems, such as the "OVERALL ASSY (SS-MSP7M)" procedure. This ensures that technicians can safely and efficiently access internal components.
Specialized Tools: A "JIG FOR SPEAKER REMOVAL" (Part No.: J-2501-238-A) is specified for disassembling the front panel assembly. This highlights the need for specialized tools to prevent damage during maintenance. The instruction "please work so as not to injure front panel and speaker cabinet" emphasizes careful handling.
Exploded Views: Detailed exploded views (e.g., for SS-MSP3M and SS-MSP7M) are provided, illustrating the arrangement of internal components and fasteners. These diagrams are crucial for identifying parts and understanding their assembly.
Parts List: A comprehensive parts list, including reference numbers, part numbers, descriptions, and remarks, is included. This allows technicians to identify and order specific replacement parts, such as screws, loudspeakers (woofers and tweeters), speaker cabinets, and sub-panel assemblies.
Part Stocking Information: The manual notes that "-XX and -X mean standardized parts, so they may have some difference from the original one." It also states that "Items marked '*' are not stocked since they are seldom required for routine service. Some delay should be anticipated when ordering these items." This information is vital for managing expectations regarding part availability and potential lead times for repairs.
Mechanical Parts Not Supplied: The manual clarifies that "The mechanical parts with no reference number in the exploded views are not supplied," indicating that only listed and numbered parts are available for service.
Color Indication: An example of "Color Indication of Appearance Parts" (e.g., "KNOB, BALANCE (WHITE)... (RED)") is provided, which helps in ordering parts with the correct aesthetic specifications, where applicable.
Revision History: The inclusion of a revision history (Ver. 1.0, Date 2012.02, Description: New) ensures that technicians are working with the most current service information.

Overall, this service manual is a comprehensive guide for the technical servicing of Sony's SS-CNP7M/MSP2M/MSP3M/MSP7M/SRP7M speaker systems, providing all necessary information for repair, maintenance, and understanding the product's technical architecture.