Sony PVM-20M4E Defect

For monitor related issues
Post Reply
Suge13
Please Continue...
Posts: 15
Joined: March 21st, 2014, 11:55 am
Location: London, UK
eBay: Neoyemi

Sony PVM-20M4E Defect

Post by Suge13 » September 6th, 2014, 1:16 pm

Hello Guys

I got the said item free the other day, now I know it works but as you can see from the pic there is this overlaying rainbow effect.

Image

This is how it looks like when on the highest brightness but '0' brightness you can make out the rainbow effect in the text

Image.

My question is if there is anyway of fixing such an issue and if so please advice, thanks.

User avatar
cools
Armed Police Buttrider
Posts: 12735
Joined: August 17th, 2008, 4:49 pm
Location: Wales, United Kingdom
eBay: hordarian
Initials: CLS

Re: Sony PVM-20M4E Defect

Post by cools » September 6th, 2014, 2:13 pm

Its screwed. That's a detached mask.
Image

Suge13
Please Continue...
Posts: 15
Joined: March 21st, 2014, 11:55 am
Location: London, UK
eBay: Neoyemi

Re: Sony PVM-20M4E Defect

Post by Suge13 » September 6th, 2014, 2:29 pm

Well that's that :) . Thanks dude.

User avatar
RMRM
Posts: 495
Joined: April 20th, 2013, 4:45 pm
Location: Portugal

Re: Sony PVM-20M4E Defect

Post by RMRM » September 6th, 2014, 8:46 pm

cools wrote:Its screwed. That's a detached mask.
Never heard about that, care to elaborate to inform a noob? :awe:

User avatar
Devil Soundwave
Doesn't go to eleven
Posts: 4857
Joined: January 7th, 2009, 11:56 pm
Location: North London, UK
eBay: DevilSoundwave

Re: Sony PVM-20M4E Defect

Post by Devil Soundwave » September 6th, 2014, 8:53 pm


User avatar
Jamtex
Posts: 100
Joined: May 20th, 2011, 9:10 pm
Location: Oslo, Norway

Re: Sony PVM-20M4E Defect

Post by Jamtex » September 13th, 2014, 3:46 pm

The shadow mask is held up with quite thin wires, some Trinitrons had others holding it up at the centre which shows up a thin line in the centre or in the thirds of the screen. If you unplug the monitor and rock the screen back and forth you will probably hear the shadow mask hitting the tube.

It looks like someone dropped this or made it suffer some serious G forces on of the wires has broken which is why you are getting the rainbow effect. Trinitron screens tend to be worse for mechanical shocks as I have seen more trinitron screens with the rainbow effect then any other tube, although to be honest I've never seen any triad shadow mask screen broken in this way.

Can it be repaired? No. Although you can probably salvage the chassis if nothing else. Remember to dispose of the CRT in a responsible and green way.
A:>

User avatar
Wurstkopp
Mister Dick Statue
Posts: 700
Joined: March 26th, 2009, 6:50 pm
Location: Hamburg, Germany
eBay: nachmittagsprogramm
Initials: NIK

Re: Sony PVM-20M4E Defect

Post by Wurstkopp » September 13th, 2014, 4:15 pm

Jamtex wrote:Remember to dispose of the CRT in a responsible and green way.
:thumbupright:

User avatar
pubjoe
Fosters Political Ambitions
Posts: 9777
Joined: August 19th, 2008, 8:58 am
Location:

Re: Sony PVM-20M4E Defect

Post by pubjoe » September 13th, 2014, 4:22 pm

Or use it for psychedelic monochrome games.

Suge13
Please Continue...
Posts: 15
Joined: March 21st, 2014, 11:55 am
Location: London, UK
eBay: Neoyemi

Re: Sony PVM-20M4E Defect

Post by Suge13 » September 14th, 2014, 1:03 pm

pubjoe wrote:Or use it for psychedelic monochrome games.
:D

Post Reply