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kv36hs510 burning smell and takes longer to turn on everything works |
davidtc4
Rank: Sony Fan
Joined: Jun 09, 2008
Posts: 2
From:
 |  Posted: 2008-06-09 22:56
the unit takes a long time to turn on and after it is on it starts to stink like something electrical burning any idea's?
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claudio
Moderator
Premium Member
Rank: Ultimate Sony Reviewer
Joined: Aug 30, 2001
Posts: 2355
From: Rockville, MD
 |  Posted: 2008-06-09 23:07
Hi davidtc4,
Welcome to Agoraquest.
Does the burning last for a while or does it dissipate after a while? Also, how long have you had this issue?
I saw this on a forum
Could be many things. Power Regulator short Circuit, Horizontal Output Transistor and FBT ... Best get a professional to take a look. These sets are all solid state, and there are no user servicable parts inside.
Claudio
Claudio
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claudio
Moderator
Premium Member
Rank: Ultimate Sony Reviewer
Joined: Aug 30, 2001
Posts: 2355
From: Rockville, MD
| Posted: 2008-06-09 23:10
Also, forgot is there any visible smoke coming from the tv?
Ozone smell and/or smoke from TV?
Smoking is just as bad for TVs as for people and usually more quickly terminal.
White acrid smoke may indicate a failed electrolytic capacitor in the power supply probably in conjunction with a shorted rectifier. Needless to say, pull the plug at once.
A visual inspection should be able to easily confirm the bad capacitor as it will probably be bulging and have condensed residue nearby. Check the rectifier diodes or bridge rectifier with an ohmmeter. Resistance across any pair of leads should be more than a few ohms in at least one direction. Remove from the circuit to confirm. Both the faulty diode(s) and capacitor should be replaced (though the capacitor may work well enough to test with new diode(s).
If a visual inspection fails to identify the smoking part, you can probably plug the set in for a few seconds until the source of the smoke is obvious but be prepared to pull the plug in a real hurry.
If the smell/smoke is coming from the flyback, then it has probably gone belly up. You may be able to see a crack or bulge in the case. While the flyback will definitely need to be replaced, it is likely that nothing else is wrong. However, it might be prudent to use a Variac when performing initial testing with the replacement just in case there is a secondary short circuit or excess HV problem.
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