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Shahid
Shahid, Technician
Category: Electronics
Satisfied Customers: 11447
Experience:  I have been repairing electronic gear since 1993 as a qualified Sony tech
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slight crackling noise in sony television, how to get rid of

Resolved Question:

slight crackling noise in sony television, how to get rid of it?
Submitted: 2 years ago.
Category: Electronics
Expert:  Shahid replied 2 years ago.
Hello, my name is***** be happy to assist you.
Please allow me to ask you a few questions to diagnose the problem.
- Can you please get me the model number off of TV in question?
- Also, what video devices (satellite box, DVD player etc) are connected to the TV and does the problem occur on all video input sources?
- Is the crackling noise come from TV speakers or from inside TV?
Thnaks.
Customer: replied 2 years ago.

Model Sony Brava
Sky satellite box

DVD player

CD player

Crackling from the television

Expert:  Shahid replied 2 years ago.
Hi Mary,
Thanks for the info.
TV model number would be written on back or side panel of TV and would start like KLV, KV or KDL etc.
Thanks.
Customer: replied 2 years ago.

model number KDL-D40A 12U

Expert:  Shahid replied 2 years ago.
Thanks for the info, let me check relate manual and get back to you in 20 minutes.
Customer: replied 2 years ago.

crackling has become much worse - have unplugged from wall

Expert:  Shahid replied 2 years ago.
OK, do you feel any odor like some electronic part burns while the crackling sound comes from TV?
Customer: replied 2 years ago.

No, there is no burning smell - no smell at all

Expert:  Shahid replied 2 years ago.
Mary,
Is it possible for you to remove the back cover off of TV for visual check and to locate the region/ source of crackling sound in TV?
Thanks.
Customer: replied 2 years ago.
Relist: Answer quality.
did not reply to my final reply
Expert:  Shahid replied 2 years ago.
I replied and here is again...
Mary,
Is it possible for you to remove the back cover off of TV for visual check and to locate the region/ source of crackling sound in TV?
Thanks.
Customer: replied 2 years ago.

sorry for delay in replying. Noise much worse, unplugging helps

slightly. Taken off back - definitely from speakers. Have tried to

brush around and also used vacuum cleaner - no use at all.

Have speakers broken down? What else can be done?

Expert:  Shahid replied 2 years ago.
Mary,
Please turn Off any other video device (like home theater system, dvd player etc) connected to the TV and check, does it still give crackling sound in speakers?
Thanks.
Customer: replied 2 years ago.

Shahid

Have done as you suggested but has made no difference.

Expert:  Shahid replied 2 years ago.
OK, please give me 10 minutes to look into schematics of TV and get back to you.
Thanks.
Expert:  Shahid replied 2 years ago.
Thanks for waiting, unfortunately problem seems with the sound processor chip in TV which is producing crackling sound and related circuit board will need to be replaced in TV which will help to resolve the problem.
Can you please recheck the TV model number as it could be KDL-V40A12U instead of KDL-d40A12U ?
Shahid and other Electronics Specialists are ready to help you