Philips 42pfl5603d Noise

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • Cabbar
    New Member
    • Oct 2021
    • 2
    • Turkey

    #1

    Philips 42pfl5603d Noise

    Hi! For almost a year now, a 13 years old Philips 42pfl5603d LED TV has been making high-pitched and loud noises from the standby light's back location (right bottom) when it's turned on for the first 5-10 mins. It is only connected to a laptop via HDMI.

    During that initial time, the noise flactuates if the screen changes and lighter colors seem to increase both the pitch and the loudness. After approximately 10 mins, the sound turns into a weak buzz, and if I turn it off and back on, it's as if it has no issues.

    When the problem first began, if I turned it off and on 3-4 times consecutively, the sound used to go away but now the only way is to wait for 10 mins and switch it off and back on. The sound changes if I touch the speaker with my finger but volume level or muting has no effect. So I guess it is similar to a feedback noise which goes away after something warms up.

    As far as I know, it has a chassis called q522_2e_la and the back cover has a sort of audio hardware protection which prevents you from turning it on when the lid is off. I don't know if the worn off bezel (some of the screw nests are broken for 5-6 years) might have damaged this audio set-up...or I don't know.

    I wonder if there's something I can do by myself at home to diagnose the problem.
    Last edited by Cabbar; 10-04-2021, 11:52 AM.

Related Topics

Collapse

  • karatzdi
    Denon AVR 1908, High pitch noise on Surround back Left channel after long overhaul
    by karatzdi
    Hello,

    I know some might say... just buy another one. Sell it as parts..!

    So had this AMP for quite some time. Recently I saw light smoke coming out of the AMP. Had my fire extinguisher close by. Just kidding. Turned immediately all devices off from mains.
    Let things cool a bit, and opened up the amp device. I clearly saw on the main board which hosts the 5X amp (5.1), 3 10 ohms 1W resistors had their leads looking black, while the rest of the remaining 2 x 10 ohms were brownish as being installed from factory.

    Spent some time downloading the Service...
    06-11-2024, 08:38 AM
  • courtcircuit
    Philips HTS8000 home cinema noise problem
    by courtcircuit
    Hello

    I have since a long time a Philips HTS8010S/01 which has been old but was doing the job.

    Since a few days, it starts by making a weird "static" nois when switches on for a few seconds to a minute and then works like a charm.
    Noise loudly outputs from the 3 channels, even if no signal is sent by the controler.DVD to the subwoofer/amp unit.

    I was thinking of a soldering that was starting to be damaged and that was only doing the job after a few seconds of heating, most probbaly on the power board
    Removed each of tyhe boards
    ...
    02-08-2025, 08:22 AM
  • sam_sam_sam
    Lift Master Garage Door wall switch display / motion sensor controller display disappeared no back light
    by sam_sam_sam
    This happened last Saturday and today I finally had time this morning before I went to work to replace two non brand capacitors

    I will let you be the judge weather or not these are bad or not according to the blue ESR meter that I am using

    I am comparing them to a brand new one that I installed

    The display came back on and the programming was not lost which I was surprised by I would have thought that when the display went blank that so did the memory as well

    I going to let it run for several days before I remount back on the wall next to the...
    09-05-2024, 06:48 PM
  • pat0te
    Tv Philips 42PFL5603D/12 random fail
    by pat0te
    Hi to all! first post here, awesome forum. Greetings from Spain. I'm a electronic technician but I forgot many things because I was working in IT all my life :-)

    I got a TV Philips 42PFL5603D/12 (chassis SQ522.2E LA) without remote control and no history to follow.
    TV has random failures. Sometimes, stucks in a rebooting loop showing white led and video and audio signals, then fixed red light (stand by?) for some seconds, then red light goes off and white light come again with video and audio showing just fine. This rebooting stages, has random working times.
    Another...
    11-19-2022, 08:09 AM
  • Document Archive
    HP ProDesk 600 G5 + APC Back-UPS 700VA ProDesk 600 i7-9700 Specification for Upgrade or Repair
    by Document Archive
    This specification for the HP ProDesk 600 G5 + APC Back-UPS 700VA can be useful for upgrading or repairing a desktop PC that is not working. As a community we are working through our specifications to add valuable data like the ProDesk 600 G5 + APC Back-UPS 700VA boardview and ProDesk 600 G5 + APC Back-UPS 700VA 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...
    09-12-2024, 02:30 PM
  • Loading...
  • No more items.
Working...