60" Philips No Picture HV circuit for DPTV305

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • mpobanion
    Member
    • Dec 2009
    • 23
    #1

    60" Philips No Picture HV circuit for DPTV305

    Hi, members
    Dead Set
    I have a Philips 60” DPTV305. The Power supply is working fine after replacing Capacitor. I have Audio but no picture. I have 5v standby and standby at correct volts when PTV is off. 130v present at connector 1518 pin 9. Checked for HV at G2 focus screen block, only has about 2.5v when this should be 200v. I checked @ location pin 1 of each CRT board. The focus block is a sealed module and all connections are insulated with rubber I could not get HV reading. Amplifier Power / Protect Thermal/ Generator Fly back pins 1-7: These 1-10 pins are right under the Fly Back unit. Spec; pin 1 -in .7v ; pin 2 12.9v ; pin 3 fly back .03v. Pin 4 -13v. Pin 5 amp out -12.5v. Pin 6 vsup 13v. Pin 7 +in .6v

    Can anyone confirm that I have a bad Fly Back component? Is the power amp in back of the Fly Back? I wrote down readings on fly back but they do not match-up with ones above. Any suggestions would help very much, Thanks
    Tags: None
    • Elektrolyt47uF
      New Member
      • Apr 2009
      • 1
      #2
      Re: 60" Philips No Picture HV circuit for DPTV305

      Check if you have 135V going to HV generator and check vertical IC if not working
      there will no be high voltage

        Comment

        Previous template Next

        Related Topics

        Collapse
        • PNI E.
          tcl u65x9006 back light on but no picture sounf ok after 40 50 secs
          by PNI E.
          hi guys, i need your help again...i have tcl u65x9006. while i was watching it become darker like when a movie ends, little by little the image disappear. now if i turn on i have back light on, after like 1 min i have also sound but no picuture. the back light is on i take off one at time the ldvs but nothing change always no picture. i tried to cover with a piece of paper the pin of ldvs i cover like 7 8 pins but nothing worked. the tv stay with no picture. there is a tcon board.i checked the voltage there on the fuse i have 11,8 volts. there is caps in shorts on the exit of the tcon i have...
          02-20-2025, 08:36 AM
        • Patrick501
          Philips 55PUS6704 no picture, backlight ok
          by Patrick501
          Hello,
          I'd like to repair a Philips 55PUS6704.
          It turns on and you can see the backlight, hear the sound but no picture.

          When I disconnect one of the T-con cables, half of the screen turns white.
          right cable disconnected= right side white
          left cable disconnected= left side white

          When I tape like 6 or 7 pins of one cable it looks like the picture attached. I already tried another T-con board without success.
          There are no shorts on the the mainbaord and the two lcd panel boards...at leat I couldn't find any.
          Also you can notice one single...
          11-12-2025, 08:46 AM
        • koby058
          vostro comes up with back light but no picture
          by koby058
          Hi people!!
          The owner said it showed bad picture once in a while (attached)
          I see that there is back light but no picture.
          I want to ask if it is possible to disable the NVIDIA GPU and use the intel one?

          Also attached schematic and BDV

          LINK to schematic & boardview - https://www.badcaps.net/forum/troubl...ll-vostro-5590...
          07-13-2025, 01:03 PM
        • madyoyo
          Philips 37pfl560: Yellow picture
          by madyoyo
          HI.

          I have a weird problem with an old Philips 37pfl560 TV i put out of storage: the picture have a noticeable yellow hue, and its not caused by the settings (did a factory reset). I've never seen this before. I will try to get a photo with a real camera, with my phone its hard to see because of automatic white balance, but in real live the whites are really yellow.

          Anyone have an idea of what can cause this? Can CCFL tubes get "warmer" with time? This tv have several analog inputs,so its nice for retrogaming....
          05-30-2025, 10:16 AM
        • charlesdutcher
          No picture issue in Philips Chassis FTL2.1
          by charlesdutcher
          Hello,
          My Plasma Philips 37inch chassis FTL2.1 does not show picture. It automatically goes into protection mode after 30 seconds (red led blinks at 3Hz)


          Is there someone having any symptom like this? How to fix it?

          Thanks in advance!​
          08-06-2024, 09:55 PM
        • Loading...
        • No more items.
        Working...