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A Musical Keyboard With No Sound Repaired And Maintained. Roland E-40

By on April 21, 2023
music keyboard repair







A guy brought this musical keyboard for repair. The first problem he talked about was the keyboard does not come on but that was due to colder soldering joints on the main power board. The second problem that this key board has is no sound coming out of the speakers. It powers on just fine (cold solder joints fixed) but no audio coming out. Let us find the fault.

how to fix musical keyboard

Since the fault was no audio, I headed directly to the audio board and the volume fader

because it did not look good and when sliding it up and down it was rough to move.

how to repair music keyboard

As you look to the left side of the board you will see some wires with different colors I took a photo of these colors just to make sure I put them back in the same order.

musical keyboard fix

Next to these wires if you look carefully you would see the pins of the audio volume fader so that is where I am heading with this repair.

how to repair and fix muscial keyboard

The audio fader looked really nasty and when I tried to clean it with special fader spry,

the problem remained so it was time to replace this fader with a new one.

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Of course I did not have the same exact audio fader so I had to order it online and wait about two weeks or so to get back and as you can see, the top one is the new one so it was time to install and give it a try.

fixing a musical keyboard

I soldered it back and powered on the device; yes, it worked like a charm. The sound was loud and clear and the customer after a long wait for the repair was so happy with the outcome.

Mission Accomplished

waleed Rishmawi

This article was prepared for you by Waleed Rishmawi, one of our ‘Master Authors’ and currently working in the Bethlehem area of Palestine repairing electrical and electronic equipment.

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Note: You can check his previous article on Bad Wheels On A Hover Board Replaced




  1. Albert van Bemmelen

    April 21, 2023 at 12:50 pm

    This successful repair was no doubt music to the customer's ears!

    • Waleed Rishmawi

      April 21, 2023 at 5:35 pm

      Albert: yes it was; he sounded joyfull when he got this musical key board. have a blessed day

  2. Yogesh Panchal

    April 21, 2023 at 2:38 pm

    Good Job!Waleed

    • Waleed Rishmawi

      April 23, 2023 at 1:34 am

      Yogesh: thanks man. Have a blessed day

  3. Parasuraman S

    April 21, 2023 at 2:44 pm

    Excellent fix and rewarding music to the ears apart from earning!

    • Waleed Rishmawi

      April 23, 2023 at 1:37 am

      Parasuraman: yes it was . Have a blessed day


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