INSIGNIA NS-32F202NA no backlight

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • solderfly
    Member
    • Mar 2013
    • 13
    • USA

    #1

    INSIGNIA NS-32F202NA no backlight

    I'm posting this not because there is a problem with this TV, but to help some with similar issue. I have used this forum many times and it just helps me to learn more.

    The symptom of the TV was that it would turn the display on for just a split second. I could see it was on, but there was no backlight.
    I suspected part of the BL was out.
    Then I noticed a slightly bulged cap. After replacing it the TV works perfectly.

    Thank you for all the help I find here!







    Attached Files
  • EazyBone
    Badcaps Legend
    • Jun 2023
    • 1321
    • United states

    #2
    Re: INSIGNIA NS-32F202NA no backlight

    Yea similar problem with tv I just had. Thanks for posting. I try to do this also

    Comment

    Related Topics

    Collapse

    • triplefour
      UN65TU700DF picture and sound but no backlight. BL tests ok but repl. PSU didnt fix!
      by triplefour
      this tv is throwing me for a loop. do samsung tvs no longer have the backlight self test feature built into the power supply?
      i tested the backlight with my LED tester and it lights up both strips. one of them reads 100v and the other reads 63.7v.
      unplugged mainboard from power supply but left backlight plugged in, and then plugged psu wall power in. expected to see backlights light up but see nothing.
      according to how ive diagnosed in the past, this would almost always be a bad power supply. replacement power supply was cheap like 20$ from ebay. but still i get not even...
      09-13-2023, 10:43 PM
    • shellybelly
      Razer Blade 2016 6700k 1060 RZ09-01952 suspected backlight power rail issue.
      by shellybelly
      Back Story
      I just recently purchased a RZ09-01652 Razer Blade 14 Touch v4(2016) as a project. I suspect the original motherboard had overheated and caused board damage to the vrm's for the CPU and GPU as now that motherboard works however will lockup on you often due to hardware clock issues.
      So after some research and looking at options for replacement motherboards I got a replacement RZ09-01952 razer blade 14 motherboard which has the 1060 vs the 970m that was in my original motherboard. I have contacted the seller about the motherboard being bad however I doubt they will be...
      08-27-2023, 10:40 PM
    • howardc64
      Insignia NS-43D420NA20 backlight on no display - LCD panel burn failure
      by howardc64
      Eventually discovered a burn mark near lower corner of LCD. Here is a summary
      • Backlight on, no image
      • Disconnect right buffer board (view from front), left side display comes on
      • Masked off pin 7+8 (both ~12,5v on both left and right buffer board) from t-con to right buffer board (view from front) display works but have some lines
      • Buffer board is pretty simple
      Removed the front bezel to examine edge of the glass. Found burn mark on lower right (view from front). Plastic bezel covering the burn mark region shows heat signature on the inside surface facing the LCD panel. Last 2 pics. Bright...
      07-11-2025, 04:04 PM
    • arnard
      Insignia NS-32L430A11 backlight issue
      by arnard
      I have a weird backlight issue on the above Insignia Plasma that I am coming up empty on researching.

      The display is darker on the left than on the right side of the screen. It uses 4 U shaped plasma tubes. I have had it apart deep enough to tell you that the tubes are bright as they should be at the electrode ends but dim as they get to and go around the bend.

      Since it is all 4 tubes it seems like it would be an inverter/backlight board but obviously can't be a blown up component as it does still somewhat work. I'm thinking low voltage but no idea where to go beyond...
      06-10-2023, 01:36 AM
    • DanPoka
      Guide me through repairing a Dell p2210f LCD ccfl backlight monitor
      by DanPoka
      I bought this p2210f dell monitor to fix. Schematic is the same as p2210.
      Behaviour is that monitors comes on but then backlight switches off almost instantly. If I look with flashlight I can still find the "No signal message". So definitely a backlight issue. Trying to advance the issue I proved that the protection circuit is switching off the backlight by shorting out C3 and resistor to disable the INL chip then re enable by removing the short.
      This is where it gets interesting. When I disassembled the monitor to solder leads on c3 capacitor I noticed the backlight flickered...
      02-15-2025, 05:05 AM
    • Loading...
    • No more items.
    Working...