Jestine Yong | Electronics Repair And Technology News

No Schematic? Don’t Worry, Here Is A Way To Solved – PHOENIX Open Care Warmer OCW100

Jestine Yong — Sat, 22 Aug 2026 08:33:04 +0000

The power supply board of this warmer which also handles the heating of a carbon crystal element, was brought to me with the complaint that the connector portion of the heater burned due to power hike and that portion was found charred. What you see in the second […]

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AVG F3 – Black Portable Bluetooth Speaker

Jestine Yong — Sat, 22 Aug 2026 08:32:22 +0000

I came across a Bluetooth speaker with a non-functional USB port. Upon inspection, I discovered that the USB connector was damaged internally; the plastic piece inside the port that holds the pins in place was missing. First, the PCB must be checked for any further damage; replacing the socket on […]

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The Inside Of A USB Portable Rechargeable Soldering Iron

Jestine Yong — Sat, 22 Aug 2026 08:31:38 +0000

This is a handy tool that I bought a few months back. I used this often when working on SMD components and doing some minute soldering works. The backup time, unfortunately, is not good enough when used in high temp mode. But when we do work on T-con or Scalar Boards of […]

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Completed Another Higher Advanced Electronics Repair Level 3 Course

Jestine Yong — Fri, 21 Aug 2026 12:46:30 +0000

Completed today another Higher Advanced Electronics Repair Level 3 Course for 2 participants. Below are the photos taken during the 3 days course: Likes(11)Dislikes(0)

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Toshiba LED TV Dead No Power

Jestine Yong — Sat, 15 Aug 2026 01:49:53 +0000

I received a Toshiba TV for repair that had a ‘dead’ condition (no power). Upon speaking with the customer, I learned that the TV had not been used for the past few years. Due to financial constraints, the customer hadn’t mentioned that they had previously had it checked by […]

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Relay Rattling Problem Solved In AMREX UPS Model PROVIEW-600

Jestine Yong — Sat, 15 Aug 2026 01:49:08 +0000

This UPS was brought to me by a regular customer with the complaint that the relay was rattling and after consulting the computer company, he got the battery replaced twice; but the problem persisted. In order to ascertain the reason, I opened the covers and the following first picture would show you the […]

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Stuck In Standby Problem Solved In PANASONIC 5.1 DVD Home Theater System-SB-WA340&SA-HT850

Jestine Yong — Sat, 15 Aug 2026 01:48:21 +0000

This system was brought to me by a close techie friend of mine, after making futile attempts to resolve the complaint captioned above. The mains input and power supply and final Amp were housed inside the Active Subwoofer Box with an inter connecting cable to the DVD player, which carried the power in, standby release […]

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Completed Another Advanced Electronics Repair Course

Jestine Yong — Fri, 14 Aug 2026 12:26:01 +0000

Completed today another Advanced Electronics Repair course for 2 participants. Below are the photos taken during the 3 days course: Likes(13)Dislikes(0)

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Revisit Of LED TV-32PFL3305-V7 After One Month – The Symptoms Of Complaints Can Be Deceptive

Jestine Yong — Sat, 08 Aug 2026 02:16:53 +0000

In this article we can learn or refresh the following: 1) The symptoms of complaints can be deceptive. 2) Minor noises in the primary switching pulse would not affect the secondary output. 3) Additional filter capacitors added to power supply main line and slave regulators can revive picture clarity to original. I request you all […]

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Limit Switch Working

Jestine Yong — Sat, 08 Aug 2026 02:16:22 +0000

May automatic device weather consumer appliance or industrial devices, these types of switches use for safety or processing purpose. In earlier my repair jobs about soap dispenser device, I found one confusing thing where on PCB pin no. 2 is grounded where Pin number 1 is Vin. Practically when we check the […]

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