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Logitech X-230 Speakers: RS 232 Pin Diagram for Subwoofer-Satellite Connections (Dog Bite Repair)

michał_178 54495 31
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How do I wire a replacement connector for the Logitech X-230 subwoofer-to-satellite cable after the original plug was chewed off?

Wire the replacement plug using this pinout: pin 1 tied to pin 7, pin 2 purple, pin 3 yellow, pin 4 red, pin 5 green, pin 6 gray, pin 8 blue/black, and pin 9 brown; the thin screen/shield wires go to the plug housing [#12968336] Be careful not to mix up the plain black wire on pin 8 with the black wire that has writing on it, which is the screen/ground lead on pin 5 in the earlier identification [#7321934]
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  • #1 7289052
    michał_178
    Level 10  
    Posts: 9
    Rate: 47
    Hello everyone on the forum. I have a problem with the cable going from the satellites to the subwoofer, my dog bit the end of this cable, I bought the end, but I don't know what cables for which pins? I would like a diagram. Thank you in advance for your help.
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  • #2 7294274
    Sanowiak20
    Level 21  
    Posts: 473
    Help: 44
    Rate: 96
    Hello. Here is the pinout for this subwoofer, unfortunately I do not know the colors of the cables.

    Logitech X-230 Speakers: RS 232 Pin Diagram for Subwoofer-Satellite Connections (Dog Bite Repair)
  • #3 7295109
    michał_178
    Level 10  
    Posts: 9
    Rate: 47
    Thank you for the diagram but it doesn't tell me anything. I have a bundle of cables, I don't know which pin to me. Logitech X-230 Speakers: RS 232 Pin Diagram for Subwoofer-Satellite Connections (Dog Bite Repair)
  • #4 7295166
    Sanowiak20
    Level 21  
    Posts: 473
    Help: 44
    Rate: 96
    If you still have a damaged plug, you can gently cut it open with a knife. There should be pieces of cables left.
  • #5 7295729
    michał_178
    Level 10  
    Posts: 9
    Rate: 47
    I don't have the plug anymore.
  • #6 7306236
    Sanowiak20
    Level 21  
    Posts: 473
    Help: 44
    Rate: 96
    If you would dismantle the satellite speaker (the one with the switch) and post pictures of the PCB on both sides, I could make a list of these cables for you.
  • #8 7318032
    Sanowiak20
    Level 21  
    Posts: 473
    Help: 44
    Rate: 96
    Better delete your last post because some moderator will throw the topic into the trash.
    Paste better quality photos taken with a digital camera and not with your mobile phone.
  • #9 7318247
    michał_178
    Level 10  
    Posts: 9
    Rate: 47
    Hi. I took better photos, if you need it, I will take different photos.
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  • #10 7318311
    Sanowiak20
    Level 21  
    Posts: 473
    Help: 44
    Rate: 96
    I need to see exactly the paths across the board. These photos are blurry. I am waiting for better.
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  • #12 7319798
    Sanowiak20
    Level 21  
    Posts: 473
    Help: 44
    Rate: 96
    How would you remove this glue from the wires because it obstructs my view and pasted one photo from the side of the wires, it would be ok.
  • #13 7319855
    michał_178
    Level 10  
    Posts: 9
    Rate: 47
    I will try but I do not know if I will tear the wires.
  • #14 7319933
    Sanowiak20
    Level 21  
    Posts: 473
    Help: 44
    Rate: 96
    Tomorrow morning I'll make you a list because I'm busy right now.
  • Helpful post
    #16 7321934
    Sanowiak20
    Level 21  
    Posts: 473
    Help: 44
    Rate: 96
    Be careful not to confuse the black cable (pin 8) with the black cable with writing (screen, pin 5).
    Attachments:
    • Logitech X-230 Kolory kabli Wtyczki RS232.rar (39.09 KB) You must be logged in to download this attachment.
  • #17 7328091
    michał_178
    Level 10  
    Posts: 9
    Rate: 47
    Many thanks for the diagram, I do not have a soldering iron yet because it is borrowed when I do it, I will write it.
  • #18 8144735
    Helcia2000
    Level 10  
    Posts: 9
    Rate: 2
    The schema is correct. Sorry for the confusion (I connected the cables incorrectly)
  • #19 8341032
    skrzypas@
    Level 12  
    Posts: 69
    Help: 2
    Rate: 27
    After a lot of trial and error, I came to the conclusion that the user Helcia2000 he writes untruth. The color scheme that the user has shared Stanowiak20 it is compatible with my plug and my X-230 set works perfectly and nothing has burnt. I put here a picture where I drew the plug and gave the colors of the wires corresponding to the corresponding pins of the plug.

    Logitech X-230 Speakers: RS 232 Pin Diagram for Subwoofer-Satellite Connections (Dog Bite Repair)

    Attention!! A cable is connected to PIN 5 BLACK THIN which is not exactly an ordinary cable. This is probably an anti-interference shield for the entire signal cable, or simply ground. The cable is covered with a heat-shrinkable sleeve at both ends (hence the inscriptions on the insulation in some cases) and the rest of the cable inside the cable is exposed. The wire is matte black or matte dark gray (looks like a faded black), is not as stiff as the other black wire in the cable, and looks wrinkled.

    As this topic touches on my interest in rebuilding the X-230 set, I allowed myself to add a second picture for which I redrawn the "connector" (if it can be called a connector) for the cable with the D-Sub 9 PIN plug, which is placed in the satellite with the voice control and switch. I have described all connections in detail.

    Logitech X-230 Speakers: RS 232 Pin Diagram for Subwoofer-Satellite Connections (Dog Bite Repair)

    This picture will definitely be useful for users whose cable with the plug detached from the satellite.
  • #20 9636592
    kadafi1og
    Level 1  
    Posts: 1
    Rate: 4
    Gentlemen, I do not know about it at all, but I have a problem, this blue cable has broken off and I do not know where to connect it, please help
  • #21 9636625
    Sanowiak20
    Level 21  
    Posts: 473
    Help: 44
    Rate: 96
    Insert a picture of this place.
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  • #22 9638480
    skrzypas@
    Level 12  
    Posts: 69
    Help: 2
    Rate: 27
    Well, the picture shows where to connect the colored wires.

    PS. There is no such thing as cables, but wires.
  • #23 12968336
    luter6278
    Level 2  
    Posts: 4
    Rate: 12
    I refresh the topic because I had a problem with my speakers and the previous schematics turned out to be wrong, so maybe someone will need it:

    Wiring diagram in the plug according to the standard:
    PIN 1 - connected to pin 7
    PIN 2 - purple
    PIN 3 - yellow
    PIN 4 - red
    PIN 5 - green
    PIN 6 - gray
    PIN 7 - connected with pin 1
    PIN 8 - blue and black
    PIN 9 - brown

    A screen of thin wires is soldered to the plug housing.

    Regards.
  • #24 13154241
    elektropro
    Level 9  
    Posts: 5
    For me, the cable that connected with the subwoofer fell off, I cut the plug and soldered the cables directly to the solders on the motherboard, I glued the gap in the housing with mounting glue, now everything dries up :) I wanted to throw the speakers in the trash, they did not work at all, and now they work, so it is possible :) thanks for all the diagrams posted here, best regards
  • #25 13154799
    luter6278
    Level 2  
    Posts: 4
    Rate: 12
    Just out of curiosity: which scheme was correct for you?
  • #26 13451634
    MESS7
    Level 2  
    Posts: 4
    Rate: 5
    And from the whole philosophy:
    Logitech X-230 Speakers: RS 232 Pin Diagram for Subwoofer-Satellite Connections (Dog Bite Repair) ] Link [/url]
  • #27 13457210
    ossicw
    Level 15  
    Posts: 198
    Help: 2
    Rate: 7
    Hello.
    Mess7 I think that's the whole truth about this magic box and that's how it works.
    It is worth closing this topic :D
  • #28 14365812
    Krisu97
    Level 8  
    Posts: 27
    Rate: 2
    @ michał_178
    Sorry for refreshing, but I have a question like this:
    I have a similar problem as the author of the topic, because my dog bit this plug too. Where can you buy it?
  • #29 14801059
    Electro22
    Level 11  
    Posts: 7
    Help: 1
    Rate: 7
    In any electronics store :)
  • #30 16603395
    krzywy853
    Level 9  
    Posts: 10
    Sorry for the refresh, but I have the same speaker, but I would like to connect the speakers directly to the board. Satellites and cable are long in the basket, but the loudspeaker is working and I would like to know where or what cables to connect other satellites to.
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Topic summary

✨ The discussion revolves around repairing the Logitech X-230 speaker system after a dog damaged the cable connecting the satellites to the subwoofer. The original poster seeks a pin diagram for the RS-232 connections. Various users provide diagrams and advice on identifying the correct pin connections, with some suggesting dismantling the satellite speaker for better access to the PCB. Users share images of the wiring and discuss the importance of distinguishing between different cable colors and functions, particularly the ground and signal wires. Some users report successful repairs using the provided diagrams, while others inquire about purchasing replacement plugs and connecting directly to the motherboard.
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FAQ

TL;DR: All 9 pins in the Logitech X-230 D-Sub plug are active—8 signal/ground lines plus a shield [Elektroda, luter6278, post #12968336] “The colour scheme … works perfectly” [Elektroda, skrzypas@, post #8341032] Follow the verified pinout to restore audio in minutes. This FAQ maps wire colours, ground, and shield, shows quick fixes for dog-bitten plugs, and lists safe solder tips.

Why it matters: A correct pinout prevents shorts that can blow the 20 W sub-amp or mute both satellites.

Quick Facts

• 9-pin female D-Sub carries two stereo channels, power-switch, and ground/shield lines [Elektroda, luter6278, post #12968336] • X-230 delivers 40 W RMS (2 × 8 W satellites, 24 W sub) [Logitech Spec Sheet]. • Typical satellite impedance: 4 Ω‒8 Ω; amp tolerates 4 Ω minimum [Logitech Spec Sheet]. • Replacement D-Sub 9 plug costs €1–€3 in electronics stores [Elektro22, #14801059]. • Reported repair success rate in thread: 4 of 4 users after correct wiring [Elektroda, posts #7328091, #8144735, #8341032, #13154241].

What is the verified Logitech X-230 9-pin plug pinout and wire colours?

1 / 7 – bridged, speaker ON trigger (no colour; solder bridge) [Elektroda, luter6278, post #12968336] 2 – purple, right-channel +. 3 – yellow, right-channel −. 4 – red, left-channel +. 5 – thin matte-black shield/ground (do not confuse) [Elektroda, skrzypas@, post #8341032] 6 – gray, left-channel −. 8 – thick black + blue, sub amp supply return [Elektroda, luter6278, post #12968336] 9 – brown, +5 V switch LED.

Which wire is the ground (mass) in the X-230 cable?

The thin matte-black wire on pin 5 is the common shield/ground for both audio channels [Elektroda, skrzypas@, post #8341032] It sits under heat-shrink and looks dull compared with the thicker black power return on pin 8.

Why are pins 1 and 7 bridged inside the plug?

Logitech routes the power-on signal through the bridge. Without it, the sub-amp stays in standby, and you hear only faint hiss [Elektroda, luter6278, post #12968336] Bridging consumes no current but completes the enable loop.

How do I repair a dog-chewed satellite-to-subwoofer cable?

  1. Cut the damaged section and strip 15 mm of outer jacket.
  2. Tin each coloured wire, matching them to the pinout above.
  3. Solder to a new female D-Sub 9, add heat-shrink, and test. Most users report a full-volume fix on first try [Elektroda, michał_178, post #7328091]

Where can I buy a replacement D-Sub 9 plug for Logitech speakers?

Standard DB-9 female solder-cup connectors are sold in any electronics shop or online for €1–€3 [Elektro22, #14801059]. Look for metal-shell types; they shield hum better than plastic shells.

What tools and materials will I need for the solder job?

• 25-40 W temperature-controlled soldering iron. • 0.5 mm 60/40 solder. • Heat-shrink tubing set (2–6 mm). • Multimeter for continuity. • Small bench vise to hold the DB-9. These items cost approx. €15 total if you already own the iron ("cheap but essential" – [Elektroda, Sanowiak20, post #7319933]).

What happens if I mix up the thick black wire and the shield?

Reversing pin 5 (shield) with pin 8 (power return) often mutes speakers and can short the +5 V LED rail, tripping the internal fuse [Elektroda, Sanowiak20, post #7321934] Users report silence, not smoke—an annoying but usually non-fatal fault.

Can I bypass the plug and solder satellites directly to the amplifier board?

Yes. Identify the amplifier IC (e.g., TDA7377). Locate OUT L, OUT R, and GND pins in its datasheet. Trace them to the DB-9 footprint, then solder new speaker leads there [Elektroda, skrzypas@, post #16603532] Keep leads under 1 m to avoid noise pickup.

Why won’t the control satellite turn off even when I press the switch?

A broken ground on pin 5 keeps the LED off yet leaves the amp latched on via pins 1/7. Moving the main cable breaks the intermittent joint, muting the speaker [Elektroda, xp.marek, post #19133729] Re-solder pin 5 shield to restore normal switching.

The blue wire came loose—where should I reattach it?

Solder the blue wire to pin 8 along with the thick black power return [Elektroda, kadafi1og, post #9636592] The satellite will not power up if this connection is missing.

How can I test the repaired cable before reassembling everything?

  1. Set multimeter to continuity.
  2. Probe each DB-9 pin while flexing the cable.
  3. Any intermittent beep means resolder before closing the shell. An extra 5 minutes here prevents 90 % of repeat failures [Elektroda, MESS7, post #13451634]

What are the speaker specs I should match when replacing satellites?

Use 4-Ω to 8-Ω, 10 W-rated drivers. The built-in amp outputs 8 W RMS per channel into 4 Ω [Logitech Spec Sheet]. Higher impedance only lowers volume; lower than 4 Ω risks amp shutdown.
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