Insignia NSLCD32 help.

Collapse
X
Collapse
 
  • Page of 2
  • Time
  • Show
Clear All
new posts
Previous 1 2 template Next
  • ivtec
    Badcaps Legend
    • Dec 2008
    • 1967
    • USA
    #21
    Re: Insignia NSLCD32 help.

    Originally posted by budm
    R513 (in PFC section) is 0.15 Ohms resistor, it shows 0.5 Ohms on your meter because of your probes resistance.
    Try heating C521 and the cap next to it with hair dryer first and then apply the power to see if you will get the 5VDC back.
    Thanks,you mean it's good ! what about R520 is the first color violet or brown? if so it should be 1.5 ohms?

      Comment

      • budm
        Badcaps Legend
        • Feb 2010
        • 40746
        • USA
        #22
        Re: Insignia NSLCD32 help.

        R520 is 1.5 Ohms. Those big resistors when they go bad they go open circuit.
        I would check or replace those two caps I suggested earlier.
        Never stop learning
        Basic LCD TV and Monitor troubleshooting guides.
        http://www.badcaps.net/forum/showthr...956#post305956

        Voltage Regulator (LDO) testing:
        http://www.badcaps.net/forum/showthr...999#post300999

        Inverter testing using old CFL:
        http://www.badcaps.net/forum/showthr...er+testing+cfl

        Tear down pictures : Hit the ">" Show Albums and stories" on the left side
        http://s807.photobucket.com/user/budm/library/

        TV Factory reset codes listing:
        http://www.badcaps.net/forum/showthread.php?t=24809

          Comment

          • ivtec
            Badcaps Legend
            • Dec 2008
            • 1967
            • USA
            #23
            Re: Insignia NSLCD32 help.

            Originally posted by budm
            R520 is 1.5 Ohms. Those big resistors when they go bad they go open circuit.
            I would check or replace those two caps I suggested earlier.
            Thanks budm;i had replaced all bad caps a few days ago but missed only one bad cap and that was cap C531 next to C521,checked it per your suggestion and replaced it and now tv runs great,i had that cap on my list of bad caps but some how missed it that's why caused all this grief,i must getting old,thanks a great deal for helping me to you all,long live Bad Caps Forum,thanks
            Last edited by ivtec; 08-24-2017, 02:23 PM.

              Comment

              • budm
                Badcaps Legend
                • Feb 2010
                • 40746
                • USA
                #24
                Re: Insignia NSLCD32 help.

                Thanks for the follow-up.
                Never stop learning
                Basic LCD TV and Monitor troubleshooting guides.
                http://www.badcaps.net/forum/showthr...956#post305956

                Voltage Regulator (LDO) testing:
                http://www.badcaps.net/forum/showthr...999#post300999

                Inverter testing using old CFL:
                http://www.badcaps.net/forum/showthr...er+testing+cfl

                Tear down pictures : Hit the ">" Show Albums and stories" on the left side
                http://s807.photobucket.com/user/budm/library/

                TV Factory reset codes listing:
                http://www.badcaps.net/forum/showthread.php?t=24809

                  Comment

                  Previous 1 2 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
                  • valvashon
                    Insignia NS-LCD19-09 no standby LED; (new problem)
                    by valvashon
                    Having a new problem with the 19" Insignia that I modified with one of my automatic turn on circuits. That is now completely disconnected so that is not the issue. I was doing some modifications on that circuitry and managed to short something out on the underside of the power board.
                    Actually found and bought the service manual (who knew it was even available?!) which brought me to the High Voltage Startup Circuit controller chip.
                    Looking up that chip number- LD7575APS brought me to the attached datasheet. I have marked my voltage readings on the schematic sheet (open in new...
                    08-30-2023, 10:41 AM
                  • 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
                  • srs
                    Insignia NS-50DR620NA18 w/ large vertical lines & no picture
                    by srs
                    I'm not sure what to do next and came here since y'all helped me fix a 50" plasma TV back in 2014, which is still working!

                    A friend gave me an Insignia NS-50DR620NA18 50" TV that suddenly developed large vertical lines on it. He said he had no idea what might have caused it and has replaced it with a larger TV. He was going to throw it away.

                    I did not notice any bulged or leaking caps on any board, the voltages produced by the power supply match the voltage that the pins are marked. The backlight leds are working. I have tried cleaning the ribbon cables...
                    04-22-2023, 02:40 PM
                  • Loading...
                  • No more items.
                  Working...