Soniq L32v12a

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • wozzie
    Member
    • Dec 2014
    • 21
    • Australia
    #1

    Soniq L32v12a

    I have a soniq tv which wont turn on . I have the power supply disconnected from the main board . all voltages are ok but when I load the 12v line things are ok but when both 12 and 24 volt lines are loaded with car light bulbs I lose voltages . I have replaced 2 rectifier diodes D12 D13 with standard diodes . This has got me beet . Any help would be much appreciated Thanks .

    Power supply board is a Meg meet Model No MIP329FL
    Tags: None
    Previous template Next

    Related Topics

    Collapse
    • caspian
      What Zener Diodes on a Linear Power Supply
      by caspian
      Dear members,

      I have a linear variable power supply with unknown brand name that I used for voltage injection.
      Then it failed. I discovered that its transistors (Q1 and Q2) are shorted.
      In addition, I discovered that its zener diodes are defective.
      I can replace the burned transistors.
      But I do not know the model of the zener diodes. the model number is not marked on the zener diodes.
      Therefore, I cannot replace the zener diodes.
      I do not want to test the zener diodes in a test circuit to discover their model or value.
      no schematics are available...
      05-26-2025, 12:38 PM
    • Fontana
      BN44-00505A dead. Need to know voltages on output diodes (Samsung T22B300EW)
      by Fontana
      1. gยดday! I have a samsung 22" tv monitor to fix. power supply model bn44-00505A. some stuff blown up on the primary, according to research something typical on this model. secondary seems ok. writings on the board say in outputs a5v (standby), b5v (switched) both on the lower 3 diodes on the picture, vamp and b13v (12.8v, both are the linked at the connector that goes to the main board) my question is, are both the upper diodes for 13v? I believe so but wanted to make sure before injecting voltage there to test. I injected 5v on the lower side and standby circuit is working fine
      2. if
      ...
      12-18-2023, 05:45 AM
    • Capacitorial
      Powersupply has all the voltages - Monitor still no power
      by Capacitorial
      Hello guys,

      I have a Philips 240B7QPJEB. The monitor seems completely dead.
      I opened it and measured the voltages of the powersupply. I found that a mosfet was dead and replaced it.
      On the connector, that goes to the TCON board, all voltages 15-19V and 5V are present.
      The small connector on the left of the PSU has two cables with 18V and all the other have 0.2V. It connects on this small connector on the left ontop of the panel. I guess the backlight? Seens fine I guess.
      The weird thing is, that the Power LED is powered over the TCON board.
      On The TCON...
      12-28-2024, 02:12 PM
    • gjgib
      Help reading schematic voltages input/output
      by gjgib
      Hello, this might be embarassing since I consider it a dumb question but keeps me kinda stuck sometimes in my journey.

      I want to know if there is any post in this forum which explains my questions. A) When, where and how do I know when X voltage line is input or output. Example:


      I'm battling with this IC to understand it's voltages. It's from non-turning-on Lenovo Ideapad 3 15iil05 - NM-D461.

      I see some lines like +5VL / +5VALW / V9B+ / +3VALW being okay and some others like 1.8VALW / +0.6VS / +2.5V_DDR. I just know that some of them are bad or missing,...
      05-06-2024, 08:11 PM
    • MicroCap
      SB315 and SB320 Shottky Diodes Voltages - TV PSU
      by MicroCap
      Hi all. I'm working on a Samsung TV Power supply board (BN044-00501a) and found one of the SB315 diodes on the cold side to be shorted. I removed it and ordered a 3A 20V PRV replacement as the 3A 15V PRV is difficult to order quickly. The TV sprung to life. After a few seconds, it went dead again...same symptoms. Did diode check again and the replacement diode had blown again. This diode is in parallel with 3 other SB315's. I am now seeing in places that "SB315 = SB3150". Is this true?

      Is the SB315 on the PSU actually 3A 150V PRV and NOT rated at 15V? If it is actually...
      05-07-2020, 07:05 PM
    • Loading...
    • No more items.
    Working...