LCD Philips 47PFL9664H/12

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • nataf10
    Member
    • Mar 2012
    • 37
    • Israel
    #1

    LCD Philips 47PFL9664H/12

    Hello to all friend and members...
    I wonder if someone can help me with a Philips TV that show picture only for
    a half second and then display stay black(no backlight).
    Is this problem comes from the inverter board or maybe from bad bulbs/lamp.
    I checked the inverter board but did not found nothing suspected (also checked the transformers and they are good-No short circuit).
    Any help please...
    Thanks
    Last edited by nataf10; 12-04-2014, 09:55 AM.
    Tags: None
    • sam_sam_sam
      Badcaps Legend
      • Jul 2011
      • 6070
      • USA
      #2
      Re: LCD Philips 47PFL9664H/12

      What is the brand name of caps that are on the power board ?

        Comment

        Previous template Next

        Related Topics

        Collapse
        • eccerr0r
          inverter H tree driver imbalance in an AC inverter
          by eccerr0r
          My cheap crappy 1KW grid tie inverter (GTI) seems to keep blowing IGBTs. When I first got it, it had two failed IGBTs. It used four 60N100's (TO264). I bought 5 from a dubious source (fleabay) and replaced just the two that were dead. The GTI worked for almost two years but recently one of the two that I replaced failed. Since I had three spares, I replaced the dead one. Then a few weeks later it failed again. Weird. Well since I bought dubious China-sourced IGBTs from fleabay it could very well just be a mixture of fakes. I replaced it, but then a day later it failed again! I put in the last...
          Yesterday, 12:34 PM
        • x_orange90_x
          Vizio E55-E1 bad backlights or bad inverter?
          by x_orange90_x
          I just got this tv today and it appeared to have no backlight on. After taking off the rear cover and checking again in the dark I can see that MAYBE one quadrant is lit.. But still it's quite dim. I was going to check the LEDs with my tester, and I found LED 1 and LED 2 + pins on the wire from the inverter, but I couldn't identify a ground. Nonetheless I tried using a mounting screw on the inverter board and also the chassis as ground but regardless my tester reads 300 which is what it reads when there is no voltage draw.

          I don't know how exactly to test the inverter itself. Is it...
          01-29-2025, 09:24 PM
        • alro7779
          Philips 32PFL4901/F8 BA4GF0F0102 2 Not getting standby led
          by alro7779
          Hello, guys!

          The same 32" Philips TV I was having video issues, but now I don't have standby led at all. Someone here shared with me the schematic of the power supply, and checking the voltages, I see right after the resistor R604 I'm getting 1.6 v which is too low for enabling the Gate of the Q601 mosfet (the diagram says 4.2). On the R614 resistor I'm getting 181 V in and 117 V out, then through R603 I'm getting the same 117 V in and 59.9 V out, finally getting the latter voltage in the R604 BUT getting just 1.6 V out, which is the voltage that goes on to the Gate of the Q601...
          09-14-2025, 12:25 AM
        • G33RT
          Philips 8200 series 65PUS8204/12 stuck at Philips Logo
          by G33RT
          Philips 8200 series 65PUS8204/12 stuck at Philips Logo, it does not reboot it just stays on the logo.

          It does power up when pressing the power button.

          I already try the power button while plugin the plug with no result.
          Also put the latest firmware autorun-TPM191E_R.001.004.100.000.upg on a MBR/FAT32 USB stick at USB port2 with no result either.

          Could this be an PSU or eMMC issue ?
          07-19-2025, 03:43 AM
        • valvashon
          Insignia NS-LCD19-09 (PS OK, Inverter problem?)
          by valvashon
          For some reason I'm just not going to let this 19" TV defeat me. I guess because I have a schematic to work from I feel like I'm oh so close.

          History- while adding a turn-on circuit I let a small screw roll under the power board. Worked through all of that circuitry, probably replacing a MOSFET and PWM controller that were not bad but I was following the service manual. Finally figured out that the power supply is in working order when the inverter section (for the backlights) is disconnected. When the +12 supply to the inverter is disconnected the +12 and +5 will come up...
          1 Photo
          01-04-2024, 01:44 PM
        • Loading...
        • No more items.
        Working...