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Philips MMS 430 Speaker Volume Control Broken PCB Replaced

By on October 5, 2015









Philips MMS 430 Speaker

These speakers are also been repaired by me earlier for the same problem but I have received this speakers again for the same problem. 2

Earlier I have joined the PCB with help of Superglue but it could not hold for long time and I have received again this PCB for repair.

This time I decide to replace the whole PCB. So I have arranged prototype paper PCB universal board universal board


Now I have removed all the components from the old PCB By marking and making circuit diagram on the Paper. Hence I have de-soldered and removed parts from old PCB. 5

By marking on paper I am able to keep the diagram with me for my future reference, so I have prepared a drawing as follows:

 pcb schematic drawing

Now it is time to rearrange and assemble new PCB with Old Parts 7

U can make jumpers by using copper wire salvaged by old “BAD CRT TV YOKE” or “Transformer” wire which is properly insulated. 8

After assembling everything tested speakers with DVD and it works as good as new.

speaker pcb repair

Have a good day!









This article was prepared for you by Yogesh Panchal who works as a Computer Hardware Engineer in Mumbai India.

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Note: You can check out his previous repair article in the below link:





  1. Allan

    October 5, 2015 at 2:20 pm

    I like your repair job Yogesh.This is not just telling the customer you need a new board. At times you need to improvise. Really excellent thinking.

    • Yogesh Panchal

      October 7, 2015 at 6:18 pm

      Thanks for your comment, it took hardly one hour for me to complete the job.

  2. Albert van Bemmelen

    October 5, 2015 at 3:23 pm

    Hi Yogesh. It must have taken some time to cut the board but you also managed to copy the original broken board. And you fixed the customers problem. I guess that the original design by Philips almost created this problem by designing a pcb that has a weaker connection. And the universal PCB I occasional also use does have the tendency to break easily too. Instead of used insulated transformer wire I myself often use a wiring pen with special 0.2mm insulated copper wire on a coil for this kind of repairs. But I also use the wiring pen for prototype designs. And recently I bought several coils with insulated 0.1mm special repair wire at Ebay. Etching pcb's with Ferro-Chloride is something that I want to avoid these days. But it takes more time to melt the insulation layer at higher temperatures before the soft solder sticks to it. A CNC machine for PCB design would be nice but will have to wait until they are less expensive.

    • Yogesh Panchal

      October 7, 2015 at 6:23 pm

      Thanks for your comment. This PCB is poorly designed and difficult to pullout of the cabinet for repair.

  3. Kevin

    October 5, 2015 at 6:04 pm

    Yogesh, Fantastic job repairing an obviously poorly designed product. Sometimes I have to wonder how many design engineers never had any hands-on experiance. That PCB was certainly going to fail. Your repair with a thicker PCB will last a lifetime.

    • Yogesh Panchal

      October 7, 2015 at 6:26 pm

      Thanks for your comment. Some time you have to finish the job with the material which you have handy.

  4. Robert Calk

    October 5, 2015 at 11:50 pm

    Thanks for sharing the repair with us, Yogesh. I don't like to use old wire myself.

    • Yogesh Panchal

      October 7, 2015 at 6:29 pm

      Thanks for your Comment.

  5. Jit

    October 6, 2015 at 12:43 am

    Hello Yogesh. It was really a very bright idea although it was time consuming. The point here is that you have managed to find a better solution this time. Good job.

    • Yogesh Panchal

      October 7, 2015 at 6:30 pm

      Thanks for your comment.

  6. Paul

    October 6, 2015 at 2:38 am

    Nice repair! but I've done similar to boards by just soldering insulated wires to the appropriate solder holes to make the connections again if the board doesn't move around that is for a quick repair

    • Yogesh Panchal

      October 7, 2015 at 6:34 pm

      Thanks for your comment. ever fix is Depends on the situation.

  7. Mark

    October 6, 2015 at 5:26 am

    Well done Yogesh for thinking outside of the box. It is necessary sometimes to create new parts and you have done an excellent job.

    • Yogesh Panchal

      October 7, 2015 at 6:35 pm

      Thanks Mark.

  8. Paris Azis

    October 6, 2015 at 4:00 pm

    Nice job Yogesh. In cases like this one (but only if the PCB is not broken) I use the “dead man” technique, that is, I scratch the trace foil(s) before and after the(ir) cut point across the foil trace and then I tin it (them) with fresh solder and afterwards I “bury” one (or more, twisted) tinned copper strands above the cut(s).

    Best Regards

    • Yogesh Panchal

      October 7, 2015 at 6:37 pm

      sir, thanks for your comment. again it depends on situation.

  9. Ongwech Albert

    October 6, 2015 at 10:47 pm

    Hi Mr.Yogesh, Very Good Evidence Seen. I Wish I Was Present Watching The Step Practically.

    • Yogesh Panchal

      October 7, 2015 at 6:38 pm

      Thanks for your comment.

      • Pramod

        May 25, 2021 at 2:00 pm

        hi, I lost my satellite speakers. I have the sub with the board in tact and have other spare satellites with me - can you guide me if and how I can make it work please.

  10. Bernie Scott

    October 7, 2015 at 4:44 am

    Good job.....Most people...including myself would probably not do what you did......especially if you are very busy and have repairs coming from all I do...but...with some spare time on your hands, this is a very good idea......or it could be done over time if the owner was not in any hurry...but I find most people what there equipment repaired fairly quickly.......You did an excellent job.....keep up the good work.......

  11. Yogesh Panchal

    October 7, 2015 at 6:42 pm

    I am agree with you , thanks for comment.

  12. Chris

    October 7, 2015 at 7:31 pm

    Hi Yogesh, I love the way how you repaired the equipment and love to see when technicians leave a trace of they works as you did with the complete paper drawing. That shows you have knowledge and patience what is very important in our jobs.
    Great work and keep up posting.
    My best regard.

  13. Yogesh Panchal

    October 7, 2015 at 9:20 pm

    Thanks for your kind words.

  14. Humberto

    October 7, 2015 at 11:27 pm

    Good improvisation Jogesh, anyway mission accomplished. Congratulations.

    • Yogesh Panchal

      October 8, 2015 at 3:57 pm

      Thanks Humberto.

  15. erdi

    October 20, 2017 at 3:28 pm

    Hello. First of all thank you for sharing.

    As you can see, I made the circuit, but the LED light is not lit and there is very little sound in the form of sizzling. I will be glad if you help me.

  16. Velat

    December 9, 2017 at 7:48 am

    Hi mister Yogesh.
    I know you did it 2 years ago but i have problem can you sendme which cable goes which out becouse i can not fund in internet

  17. Sagar Patel

    October 20, 2018 at 12:14 pm

    Hello Sir,
    I have the same speaker. The 8 Pin DIN cable was broken in my speaker. i want to replace it. can please send me diagram of circuit which is in sub woofer unit. i dont understand which cable goes where as there is all white color cable. your help will save my speaker.
    Thanks in advance

  18. Sagar Patel

    October 20, 2018 at 12:25 pm

    i want circuit diagram for which cable goes where in sub woofer unit. as my 8 pin din cable was broken. PHIPLIPS MMS430

  19. Rajesh Rathod

    December 23, 2019 at 9:09 pm

    Same problem with my PCB what to do now I don't no hw to repair

  20. Sumit

    April 3, 2020 at 3:16 pm

    My speaker is not working (philips pc432 speakers), can you provide Complete Circuit Diagram of Amplifier for repairing purpose .

  21. Jozef Slaný

    October 19, 2020 at 11:18 pm

    How i can disamble this speakers can you help me please?

  22. Cliveey

    March 6, 2021 at 4:04 pm

    Hi which IC was used in Philips MMS430?

  23. Jesaj

    October 6, 2021 at 4:36 pm

    Hi Yogeshbhai, where can I get a similar vol potentiometer for the same model Philips MMS430? I'm having a hard time finding one. Please help!


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