Home Theater System Repair | Electronics Repair And Technology News

LG Home Theater Model DH3140S – Dead on Arrival, Now Repaired

Jestine Yong — Sat, 23 Aug 2025 09:02:12 +0000

I received this LG home theater from a customer who wanted it checked by a technician. It was completely dead on arrival, so I started with the basics. I checked the main fuse and found it open. For testing purposes, I used a jumper wire across the fuse and connected the unit to my series […]

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Home Theatre Stuck At Standby Repaired

Jestine Yong — Sat, 19 Oct 2024 08:31:31 +0000

This Jeufel home theater was brought to me with complaint of being stuck at standby mode: when its pluged into ac socket, standby led is on, when on/off button is pressed, nothing happens…. device don’t power on. So i opened top cover and did the needful before troubleshooting. First thing i sighted from mainboard is […]

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LG Home Theater As No Audio

Jestine Yong — Sat, 17 Aug 2024 02:22:45 +0000

A new customer came to my workshop with this home theater with complaint of playing but no sound. So i did the usual and probe through the device, nothing to suspect. So i thought perhaps the problem may be with audio ic which are placed under a big heat zinc. […]

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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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LG Home Theater Repaired

Jestine Yong — Fri, 14 Oct 2022 13:12:35 +0000

This home theater was brought to me with complaints of showing “No Disk”. When I opened its cover case, there was little dust which I did clean. Power it and observe the disc was rolling slowly. So I suspected the motor driver could be faulty. Pull it out and gave it ohms test which […]

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DENON AVR 2312- Power Supply Problem Rectified

Jestine Yong — Sat, 08 Aug 2020 02:35:55 +0000

Good Morning, I got this Denon AVR which could not power up. I applied my troubleshooting techniques learnt from Mr. Jestine’s class in KL. Since I have previously rectified the power supply problem in another model Denon 2311, I suspected that the problem in this Denon 2312 could be something similar, like faulty IC TOP258MG […]

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Sony Home Theater Push Power Protect Error Solved

Jestine Yong — Mon, 06 Apr 2020 07:50:22 +0000

Sony home theater receiver model HBD-DZ810 came in with “push power protects” error now repaired. This customer was referred to me by another customer whom I had repaired his Sony Bravia television which had backlight problem. After the phone call I visited the client and was […]

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Voxson HT-10 Home Theatre Repair

Jestine Yong — Thu, 13 Apr 2017 14:10:58 +0000

This 5.1 channel home theatre amplifier was brought in with an unusual problem. The system worked fine, but every time quiet voices were used on the video, the sound would drop out dramatically. I hadn’t heard of this before, so was keen […]

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Great Idea To Solve Sony Push Power Protect HBD-TZ210 Problem

Jestine Yong — Fri, 01 Apr 2016 08:09:44 +0000

Customer sent to me this Sony HBD-TZ210 home theater system with the complaint of “push power protect”. In fact this kind of problem is very common in home theater system and mini hi-fi. You can read my previous article about push power protect in Sony Mini-Hi-fi in the […]

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