AVForums

Our philosophy in our forums, reviews, podcasts and feature videos is to promote audio and visual excellence by gathering and sharing the best information and resources available.

Help

To begin please visit our help section »

Not a Member Yet?

It only takes a minute to start enjoying the benefits of AVForums membership, and it's free!

Member Log in

Demagnitize Television...

Post Reply
Old 04-01-2004, 6:19 PM   #1
MikoSad
Guest
Posts: n/a
Demagnitize Television...

Iv noticed some colour impurity on my new television (PD30).

Is it possible to use an oldschool magnetic tape demagnitizer to try to demagnitize my television?! Or should I leave it be?!
  Quote
Old 04-01-2004, 9:03 PM   #2
Veteran Member
 
Chris Muriel's Avatar
Join Date: Jun 2002
Location: Manchester
Experience Points:
15,699, Level: 30
Points: 15,699, Level: 30 Points: 15,699, Level: 30 Points: 15,699, Level: 30
Activity: 11.1%
Activity: 11.1% Activity: 11.1% Activity: 11.1%
Thanks: Gave 510, Got 629
Posts: 6,246
Degaussing Wand

A tape recorder demagnetiser won't be man enough for the job.

The relevant tool for a TV is a "Degaussing Wand".
I believe CPC sell them for 30-40 quid.
They sometimes appear on Ebay too.

However, your TV will have a built in degaussing circuit.
It only operates when the TV is switched on from the mains.
So : leave TV with mains plug removed for an hour or more (so that it is totally cool internally). Then plug back in & operate TV's mains on/off switch.
You should hear a "thud" whiilst it operates.

Also, ensure all metal (especially ferrous) objects are a few feet away from the TV as this could be causing any impurity errors.

Chris Muriel, Manchester.
  Quote
Old 05-01-2004, 11:13 AM   #3
blindlemon
Guest
Posts: n/a
MikoSad,

Welcome to the PD30 colour-(im)purity club

You don't say if it's a 32" or 36" - but I'd guess it's a 36"?

My 36PD30 has colour purity problems in the bottom corners - and so have at least 2 others I've seen. The colour patches can be moved around a bit by changing the sub-geomagnetic correction value in the service menu - but they won't go away!

I don't want to be a prophet of doom, but I doubt if even a commercial degaussing gun will fix your problems. I borrowed a commercial degaussing gun and degaussed the b*ggery out of my set - to no avail! Sure, I managed to kid myself that it looked a bit better for a few minutes - but I was mistaken

This seems to be a fairly common problem with these sets..... do you have "dirty patches" on your screen too?

If you're unwilling to live with this then contact your retailer ASAP and demand a replacement set. Some people claim to have "perfect" PD30s - so you might get a good-un...
  Quote
Post Reply



Thread information and display options
Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off