Question about Sony HT-DDW740 System
I get a very noticeable hum when I select either the AM or FM input of this tuner. The CD input and other inputs sound clean, so I am wondering if there is any information about a power supply that feeds only the tuner module that could be causing this, ie a bad filter capacitor or voltage regulator. Any suggestions?
On the stanby power supply replace or have replaced C899 with a 100uf 35V capacitor, this capacitor goes bad and produces hum in the supply voltage to the AM FM circuits.
Posted on Dec 21, 2009
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
Dec 06, 2012 | Sony STR-DE985 Receiver
Jan 22, 2011 | Audio Players & Recorders
Jan 30, 2010 | Yamaha 5.1-Ch. Surround Sound Home Theater...
Nov 30, 2009 | Sony STR-DE597 Receiver
Jul 29, 2009 | Audio Players & Recorders
Mar 25, 2009 | Pioneer Audio Players & Recorders
Feb 18, 2009 | Sony STR-DE685 Receiver
Dec 06, 2008 | DISH Network DVR-625 DTV Receiver /...
Apr 25, 2017 | JVC Audio Players & Recorders
124 people viewed this question
Usually answered in minutes!