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All posts by Jestine Yong

  • subwoofer repair
    No Sound In 3 Channel Subwoofer System

                  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...

    • Posted September 26, 2015
    • 12
  • fiat car radio decoding
    Fiat Punto Low- Car Radio Decoding

                  Hi! I got a “Fiat Punto Low” car radio today to my service for repairing. Exactly, the problem was does the device was locked. The car owner was in a...

    • Posted September 22, 2015
    • 18
  • Sparking Sound In JVC TV

                  The complaint of this JVC CRT TV was the sparking sound when it was turned On. It was actually the arcing sound from the Flyback Transformer anode cap area to...

    • Posted September 22, 2015
    • 13
  • dvd lg repair
    LG DVD Video Out Problem Repaired

                  The complaint of this LG DVD Player was it has power (see the above picture) but the display/image was totally bad (see the two pictures below). It was not the...

    • Posted September 22, 2015
    • 5
  • power audio transformer repair
    STK IC Tester

                  I got one Sony FH-909R for service, with the complaint ‘no audio output’. On checking, it was found that the STK4152MkII was getting hot and high voltages were present in...

    • Posted September 18, 2015
    • 19
  • tweeter speaker repair
    Tweeter Speaker Repaired

                The complaint of this tweeter speaker was that it does not have sound. Before you can see the internal tweeter  coil, you need to carefully remove the external speaker net and...

    • Posted September 18, 2015
    • 4
  • pc repair
    ASUS PC Repaired

                  A co-worker asked for my help because his PC (ASUS P5LD2-VM) can’t be turned On. The cover of the cabinet was taken out, and the voltages (+5 volts) of PSON and...

    • Posted September 18, 2015
    • 13
  • zener diode tester
    How to Measure The Voltage Rating Of A Zener Diode

                    In this document, I show you how to measure the voltage rating of a zener diode, when there is no labeling on or if it is unreadable. Be carefully, because...

    • Posted September 15, 2015
    • 38
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