Samsung PN50A550 Plasma Power up cycling/screen distortion

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • mangina
    New Member
    • Sep 2013
    • 3
    • canada
    #1

    Samsung PN50A550 Plasma Power up cycling/screen distortion

    Hi everyone,

    I was wondering if anyone could give me a bit of advice regarding the tv noted above. The tv has been taking progressively longer to start up, and the power up cycling has started to take longer and longer (which fits the description of failing capacitors), but is now accompanied by random screen distortions and an occasional loud, high pitched screetching noise.

    Here's a video of the exact problem I found (and luckily the exact same tv model) http://www.youtube.com/watch?v=Q5cwn_JfW-0

    I was hoping this would just be a typical Samsung powerboard 'bad capacitor' repair, but the problem seems to be a little different than the other Samsung models experience.

    Any ideas of where I should start?
    Tags: None
    • capkid
      Badcaps Legend
      • Oct 2010
      • 1339
      • United States
      #2
      Re: Samsung PN50A550 Plasma Power up cycling/screen distortion

      Tom's user name (Tom66) is mentioned in the video's comments. Samsungs squeal like that on occasion when the main board has issues - that screech is all too familiar :

      https://www.badcaps.net/forum/showth...light=PN50A550
      Last edited by capkid; 09-19-2013, 12:03 AM.
      LG Plasma Mal-Discharge Correction Service

        Comment

        Previous template Next

        Related Topics

        Collapse
        • Document Archive
          Samsung Galaxy Book 2 Notebook Specification for Upgrade or Repair
          by Document Archive
          This specification for the Samsung Galaxy Book 2 Notebook can be useful for upgrading or repairing a laptop that is not working. As a community we are working through our specifications to add valuable data like the Galaxy Book 2 boardview and Galaxy Book 2 schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please note that we offer no warranties that any specification, datasheet, or download...
          09-07-2024, 05:50 AM
        • high-tech
          Samsung UN55F7050AFXZA ver. TD01 power cycling
          by high-tech
          Hello everybody, I could use some help on this one... It's got me guessing...
          I took pictures of all the boards and the pin out of the connector on the power supply that goes to the main board... I measured all the pins in relation to chassis ground, here are the result.

          (B13v)1. 12.7 volts cycling (Vamp) 2. 12.7 volts cycling
          (B13v)3. 12.7 volts cycling (PWM5) 4. 1.0 volts cycling
          (OD_LE)5. 2.8 volts cycling (PWM4) 6. 0.9 volts cycling
          (OD_ON)7. 2.8 volts cycling (PWM3) 8. 0.9 volts cycling
          9. ground (PWM2) 10. 0.9 volts cycling...
          09-15-2020, 03:39 PM
        • bcstedt
          Samsung PN50C540G3FXZA 50" Plasma, power cycling, Y-Main problem, Canada
          by bcstedt
          Just starting to crack into this one and wanted to get the ball rolling.

          At power on (plug in), power light on, relays click, repeat (sometimes)

          After disconnecting Y-Main from SMPS power stays on and boot up jingle is heard from speakers

          Removed Y-Main for inspection and testing

          This pic from:
          PN50C540G3FXZA Fast Track Troubleshooting Manual - Rev 1/10/12
          ...
          12-15-2023, 10:30 AM
        • Document Archive
          Samsung Galaxy Book Ion NP950XCJ Notebook Specification for Upgrade or Repair
          by Document Archive
          This specification for the Samsung Galaxy Book Ion NP950XCJ Notebook can be useful for upgrading or repairing a laptop that is not working. As a community we are working through our specifications to add valuable data like the NP950XCJ boardview and NP950XCJ schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please note that we offer no warranties that any specification, datasheet, or download...
          09-06-2024, 11:40 PM
        • Document Archive
          Samsung Galaxy Book Ion NP930XCJ Notebook Specification for Upgrade or Repair
          by Document Archive
          This specification for the Samsung Galaxy Book Ion NP930XCJ Notebook can be useful for upgrading or repairing a laptop that is not working. As a community we are working through our specifications to add valuable data like the NP930XCJ boardview and NP930XCJ schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please note that we offer no warranties that any specification, datasheet, or download...
          09-06-2024, 11:40 PM
        • Loading...
        • No more items.
        Working...