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Louie, Technician
Category: TV
Satisfied Customers: 12458
Experience:  25+ yrs. experience in the field and 5+ yrs. online, down to component level.
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My KD-780 was installed in my 2002 motorhome and has worked

Customer Question

My KD-780 was installed in my 2002 motorhome and has worked well until recently.
It now will randomly turn on it's own. I worked in the electronic industry my entire working career and have never seen any piece of equipment that would just start up with no human action. I have reset the microcomputer twice with no help.
Any thoughts. Thanks, Glenn
Submitted: 1 year ago.
Category: TV
Expert:  Louie replied 1 year ago.

Hi Glenn and welcome to JustAnswer,

Thank you for the question and your patience. Should you still need assistance for information purposes only...

Initially, other than the described "...randomly turn on it's own...", does it also from time-to-time lowers down the volume level by itself when in use ?

Customer: replied 1 year ago.
Expert:  Louie replied 1 year ago.

I checked the Service Manual/schematics and two possibilities:

  • • IR sensor IC602 getting a stray/errant signal to turn ON (least likely);
  • • TACT switch S613 intermittently self engaging (most likely).