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Louie
Louie, Technician
Category: TV
Satisfied Customers: 2557
Experience:  25+ yrs. experience in the field and 5+ yrs. online, down to component level.
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Was just given a JVC Dynapix by a neighbour. All works fine

Customer Question

Customer: Hi, was just given a JVC Dynapix by a neighbour. All works fine but for a loud mains hum which increases and decreases with changes in the screen image. Dark is very quiet and light in very loud.
JA: Thanks. Can you give me any more details about your issue?
Customer: Not much else...it's kinda weird when you get a bright scene on a street with a loud buzz and a dark bus passes close by taking up the whole screen and no buzz while until it's gone.
JA: OK got it. Last thing — TV Technicians generally expect a deposit of about $18 to help with your type of question (you only pay if satisfied). Now I'm going to take you to a page to place a secure deposit with JustAnswer. Don't worry, this chat is saved. After that, we will finish helping you.
Submitted: 1 year ago.
Category: TV
Expert:  Louie replied 1 year ago.

Hi and welcome to JustAnswer,

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

Initially, bear with us; re-confirm and post back with the complete model number of the JVC.

And as this almost always is an internal hardware issue, are you then considering a DIY (do-it-yourself) repair approach? If yes, do you have access to and familiar with a multi-meter and even perhaps a soldering iron?