Insignia NS-L37Q-10A Red Standby Light No Power

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • kevinm34232
    Badcaps Legend
    • May 2012
    • 1884
    • USA
    #1

    Insignia NS-L37Q-10A Red Standby Light No Power

    Upon plugging in the red standby light is lit, but pressing power button does nothing. Checking the PS voltages, I see that PS-ON has got 5V and all the other voltages are present (12, 24, 3.3), except for the O/I (or O/F) is 0V. I jumped that with the 3.3V from the pin next to it using a resistor, and the backlights lit up.

    I'm thinking this has to be a main board problem, but this board is rare and expensive. I couldn't find an eeprom for this model but I tried one from a close model # but same problem. Any ideas??
    Attached Files

    if you find these attachements useful please consider making a small donation to the site

    Tags: None
    Previous template Next

    Related Topics

    Collapse
    • cajoeg
      Insignia NS-LCD019-09 issue: Power light turns blue for 3 seconds, the flashes red before going solid read again
      by cajoeg
      Hello, I'm new to the group and to trying to repair a LCD TV. During the past few years, I've been collecting/repairing/restoring vintage personal computers (Commodore, Apple II, Atari, TRS-80, Texas Instruments, and Timex Sinclair). This has been my retirement hobby. Now I've gotten interested in trying to repair a LCD TV that I have and used regularly when working on vintage computers.

      The LCD I'm working on is a Insignia NS-LCD019. I've downloaded the service manual that I could find, but it must be a different revision since not too many items in the service manual match the TV...
      02-10-2025, 04:01 PM
    • AleMonti
      LG 55EG910V - no power and no standby light
      by AleMonti
      Hi everyone,
      I'm trying to troubleshoot and repair this old LG OLED curved TV, model 55EG910V.
      I did some basic troubleshooting and reviewed most related posts here, but I wasn't able to isolate the issue.

      The TV shut itself off during playback and never came back to life - the standby light remains off. My dad claims that it has happened a few times in the past but the issue resolved itself after some time. Not this one.

      After checking the basics I did the following:
      • I measured all voltages and as expected the only active supply is the 3.5V standby. It
      ...
      11-04-2024, 05:02 PM
    • SkishyIshy
      Sony Bravia XBR-65x900f: No Power, No Standby-light - however 3.3v STBY is present
      by SkishyIshy
      Hey All,

      I have a Sony 65x900f that I purchased cheap because of a no-power issue.
      I assumed that because there is no standby light visible, it would be an easy fix - however upon opening up of the unit I can confirm that the 3v3 standby voltage is making it's way from the power supply to the main board. I'm a little confused as to why there is no standby light.

      I am firstly wondering if anyone has this model of TV, or has worked on one and can give me some insight. I have tried to find a service manual for this model, to no avail - and would really appreciate...
      03-17-2021, 11:44 AM
    • noinimod
      Sony 55X900E no standby light, no power. Replaced mainboard already
      by noinimod
      No standby red light, nothing
      This Sony has a separate AC->DC power adapter supplying 19.5V to the TV power board (JK3)



      Disconnected JK3 power board from main board, checked voltages on all the pin outs

      At a few pins I can see the power supply providing 19.5V to the main board



      Based on the service manual triage.. it seems to be pointing towards the power board (JK3) being the most possible culprit


      LED light turns on when I disconnect LED driver board ribbon from mainboard (so i thought it is the mainboard,...
      12-22-2021, 12:58 AM
    • lapfix
      HP OMEN NO power no light
      by lapfix
      HP OMEN : DAG35DMBAD0
      NO power ,no short ,no corrusion
      Consumption : when charger plg in = 0.004 amp

      Only 3/5 vl are present when charger connected..when i put my red probe at the coils of 3/5volts and power on with my power suplly it try to rise than 0v.
      when try to power on using power button i note this starnge value : 3v then 0.300v then 3v !
      No light at power button led

      All coils resistances :
      Pl 2001 =3v measured with kohm.
      pl 2004 = 5v measured with kohm
      pl 6001 = 49.7ohm
      pl 4012 = vccsa = 24.4 ohm
      pl 3001 =...
      11-03-2025, 07:48 AM
    • Loading...
    • No more items.
    Working...