Subwoofer Repair | Electronics Repair And Technology News

Sayona Woofer Model SHT-1221BT – No Output From All Channels, But Display Present, Now Repaired.

Jestine Yong — Sun, 07 Sep 2025 08:23:31 +0000

A client brought me a Sayona woofer (model SHT-1221BT) for repair. His initial complaint was “everything is okay but bass is missing.” I did a quick test in his present to confirm what he said. On testing, I discovered that there was actually no output from all channels, not just the bass. The client further […]

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Restored SONY SA-WMD40 Multimedia Speaker System Making Happy A Holidaying Customer

Jestine Yong — Sun, 09 Feb 2025 08:30:10 +0000

This Multimedia Speaker System was brought to me by a new customer, referred to by an unknown person. The complaint was that the power on through the 18V adaptor was visible, but never responded to commands from the remote or front panel control. In order to open the sub-woofer, we […]

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A Sub Woofer With A Distorted Sound Repaired

Jestine Yong — Sat, 29 Jun 2024 08:14:57 +0000

A friend of mine who lives close by called me a about a distorted sound in a sub woofer speaker system and he wanted it repaired as soon as possible. This customer used to have a repair shop in town but he closed it down due to lack […]

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Creative Home Theater Woofer Not Working

Jestine Yong — Fri, 13 Jan 2023 23:08:48 +0000

Previously repaired unit come back for woofer not working problem. As per customer’s statement two satellite speakers are working but BASS is not produced so I urged him to send only power adaptor & woofer box only. As I have the smiler speakers for testing with me. So on arrival I inspected the woofer; Bluetooth […]

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Kef PSW3000 Subwoofer Repair

Jestine Yong — Thu, 21 May 2020 13:44:16 +0000

A client dropped off his KEF PSW3000 subwoofer complaining that it had no sound. I powered up the unit and could see the power-on LED on the front of the wooden box illuminate, but could hear no clicking of the speaker protection relay inside. I opened […]

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JBL SUB 135 Woofer Speaker Repair

Jestine Yong — Tue, 29 Aug 2017 02:27:13 +0000

My sister bought this JBL Sub 135 Woofer amp at a garage sale for $20. It was missing the fuse cap so I replaced the fuse holder with a new fuse holder to see if that was all that was wrong with it – it […]

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No Sound In Mini USB Subwoofer Repaired

Jestine Yong — Sat, 18 Mar 2017 04:47:55 +0000

A customer sent to me a USB Mini Subwoofer set for repair and the complaint was no sound but have power. When the AC power was connected and I plugged in the USB, I could not hear any sound coming out from the speakers. […]

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Samsung Subwoofer Damaged By A Mouse

Jestine Yong — Tue, 27 Oct 2015 23:47:54 +0000

The complaint of this Samsung subwoofer was no sound and the customer said he saw a mouse went into that hole. The first test I done on this subwoofer is to check the speaker Ohm and as expected there was no reading-see the photo below: The next […]

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No Sound In 3 Channel Subwoofer System

Jestine Yong — Sat, 26 Sep 2015 03:05:24 +0000

The complaint of this 3 channel sub woofer system was that the right speaker does not have sound. In order to see the circuit board inside, one need to open up the cover as shown in the below photo: Below photo is the amp PCB board and I […]

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No Sound In Mitashi SubWoofer Repaired

Jestine Yong — Sat, 12 Sep 2015 03:39:34 +0000

The complaint of this Mitashi Sub Woofer was no sound but have power. As usual, in order to repair the set, one need to open up the cover for visual inspection to see if there is any dry contact, loosen connectors/cables and etc. The top part seem […]

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