One-year old Soniq T201-AU - bad Yihcon unit

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • japlytic
    Badcaps Legend
    • Oct 2005
    • 2086
    • Australia
    #1

    One-year old Soniq T201-AU - bad Yihcon unit

    In a year old Soniq T201-AU set-top box was a leaking 1000uF 25V Yihcon unit on the +5V rail before the output inductor, which was causing this rail to be low.
    Replacing this capacitor fixed the problem - Typically, such brands of capacitors go bad after at least 3 years of operation, but failure after a year of operation seems a bit unusual to me.
    My first choice in quality Japanese electrolytics is Nippon Chemi-Con, which has been in business since 1931... the quality of electronics is dependent on the quality of the electrolytics.
    Tags: None
    • ben7
      Capaholic
      • Jan 2011
      • 4059
      • USA
      #2
      Re: One-year old Soniq T201-AU - bad Yihcon unit

      Originally posted by japlytic
      In a year old Soniq T201-AU set-top box was a leaking 1000uF 25V Yihcon unit on the +5V rail before the output inductor, which was causing this rail to be low.
      Replacing this capacitor fixed the problem - Typically, such brands of capacitors go bad after at least 3 years of operation, but failure after a year of operation seems a bit unusual to me.
      Are you familiar with fuhjyyu? Those a prime examples of early-failers
      Muh-soggy-knee

        Comment

        Previous template Next

        Related Topics

        Collapse
        • ngml
          Repair of an LG split AC system indoor unit PCB
          by ngml
          I am trying to repair an LG split AC indoor unit, which does not start and gives a CH05 error code.
          This indicates an error in the communication between the outdoor and the indoor unit.
          The outdoor unit is fine, so the problem is the indoor PCB.
          The indoor unit is an LG PC09SQ NSJ (3SNM09JA2FA), and the PCB has the following type number: EAX35907219-1.2 (see photo1)
          I changed optocouplers ICO1X & ICO2X and the NPN transistor S9013 which drives optocoupler ICO2X (see photo2), but this did not remedy the fault.

          Does anybody have the schematics of this board,...
          2 Photos
          02-01-2025, 12:55 PM
        • DrDos
          Unit runs but no speaker output kenwood KR-6030
          by DrDos
          I have finished my work. The new lights come on except the one for stereo, I reversed the bulbs to no affect, anyway, the unit powers on, relay clicks. I have no DC voltage in speaker outputs, I also do not have any AC in the speaker outputs. There is some faint crackling in the speaker. This unit cranks up loud so I had the volume on very low. Everything seems to be fine but I can't really check the switch until I can get sound out of the outputs. I was going to do caps for the power supplys and the tone board but thought if it was cranking loud at one time maybe just leave it alone until it...
          1 Photo
          09-14-2025, 09:57 PM
        • nobbnobb1
          Bose Companion 5 - Unit Powers On then Cuts Off Shortly After
          by nobbnobb1
          Hi guys,

          Trying to salvage a Bose Companion 5 computer speaker system that powers off shortly after powering on. It's got a primary USB input (built in DAC) and an aux 3.5mm input. The USB appears to be the primarily source that tells the unit to power on (control pod LED goes green) as the unit has no power switch.

          When I first connect power to the unit, plug in the USB, it will play audio nicely for a minute before it drops out and the unit appears to go into standby (control pod LED goes red). It stays in standby and I cannot seem to power it back on without physically...
          02-03-2022, 11:14 AM
        • CoinCoin88
          Garage door RX unit (Cardin S38C) does not short relay to send opening signal
          by CoinCoin88
          Hello everyone,

          I'm turning to the Badcaps community to help me troubleshoot the radio Rx card from my (old) garage door opener. While I could just ditch that card and replace the whole system, I first would like to understand "why" it suddenly stopped working, because that's just how I am wired...!

          Some basics: the receiver works on a 30.875 Mhz frequency. Yes, I'm aware this is not in use anymore in a looot of places. It does not use any rolling code, it's just a regular dip-switch code that you have to set up on both the receiver and transmitter. The receiver...
          09-15-2025, 03:36 AM
        • Mark R
          The Overseas Only Kenwood Model KR 790
          by Mark R
          I am Repairing this unit. It had many problems. One major one was the power transformer being about 4-5 volts low on the main B+ line which called for 66.5 Vols after the Main Filter caps but only showing about 62 Volts. Caps and the 5 amp Diode bridge were replaced which helped slightly.

          The other strange problem was the small secondary winding from the PT which supplies 18 Volts AC to the "FM FLUORESCENT DISPLAY" circuit, and the small winding that supplies 8 Volts AC to the push button grain of wheat lamps. Those voltages were down from 18 Volts to 16 volts. Which was...
          09-23-2025, 08:27 PM
        • Loading...
        • No more items.
        Working...