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 Post subject: Re: Fudoh's ode to old display technology
PostPosted: Thu Nov 15, 2012 5:37 pm 


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get some other people and check if they notice the noise. all crts emit a high pitched noise that only some are actually susceptible to. most people don't hear that sound.
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 Post subject: Re: Fudoh's ode to old display technology
PostPosted: Thu Nov 15, 2012 11:13 pm 


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ryu wrote:
get some other people and check if they notice the noise. all crts emit a high pitched noise that only some are actually susceptible to. most people don't hear that sound.

Mine makes a buzzing sound but its only noticeable if there is no other sound in the room. When playing I don't notice it at all.


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 Post subject: Re: Fudoh's ode to old display technology
PostPosted: Fri Nov 16, 2012 7:47 pm 



Joined: 10 Oct 2012
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Location: NTSC-US
I asked a few people in their mid 20's, and they can hear it. It sounds similar to a 14,000 hz sine wave. It is a consistent sound when the monitor is on, and there is video signal input. I'll have to keep playing and see if it is bothersome.


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 Post subject: Re: Fudoh's ode to old display technology
PostPosted: Sat Nov 17, 2012 1:30 am 


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SePh1r0tH wrote:
ryu wrote:
get some other people and check if they notice the noise. all crts emit a high pitched noise that only some are actually susceptible to. most people don't hear that sound.

Mine makes a buzzing sound but its only noticeable if there is no other sound in the room. When playing I don't notice it at all.

a tv technican told me that was normal. all my pvms do that and i stopped caring abut it after i was told that it was no big deal. all my monitors still work great
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 Post subject: Re: Fudoh's ode to old display technology
PostPosted: Mon Nov 19, 2012 3:18 am 



Joined: 10 Oct 2012
Posts: 242
Location: NTSC-US
Since these are 15Khz monitors, does that mean they also make a 15Khz noise?


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 Post subject: Re: Fudoh's ode to old display technology
PostPosted: Mon Nov 19, 2012 4:27 am 


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NWrain wrote:
Since these are 15Khz monitors, does that mean they also make a 15Khz noise?

Well, I was inclined to say no, but: link
Not sure what part would be resonating at this frequency...hmm.


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 Post subject: Re: Fudoh's ode to old display technology
PostPosted: Mon Nov 19, 2012 7:39 am 



Joined: 25 Oct 2007
Posts: 1403
Ed Oscuro wrote:
Not sure what part would be resonating at this frequency...hmm.
Probably the flyback transformer.


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 Post subject: Re: Fudoh's ode to old display technology
PostPosted: Mon Nov 19, 2012 9:21 am 



Joined: 10 Oct 2012
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I have read that when CRT computer monitors begin to fail it is because the flyback transformer laminations have deteriorated. I don't know if that was referring to 31+ khz displays or 15khz display.


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 Post subject: Re: Fudoh's ode to old display technology
PostPosted: Fri Nov 23, 2012 1:43 pm 



Joined: 04 Sep 2010
Posts: 1801
Location: Denmark
So Fudoh, where would you say the PVM 20" L2MD fits in among the SONY lineup?

I cannot find it in that catalog of yours. It is clearly a medical model. So is it pretty much similar to the 20" M2 except for the more precise controls that you mentioned previously?

And can anyone confirm that unlike the L5 the L2 does not accept 480p?

Also what would you consider the better choice between these two. A used 20L5 with an unknown number of hours on it costing a few hundred or a brand new 20L2 for almost three times the price?


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 Post subject: Re: Fudoh's ode to old display technology
PostPosted: Sun Nov 25, 2012 10:14 pm 



Joined: 19 Mar 2010
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Just bagged myself a BVM for £46! :shock: :mrgreen:
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 Post subject: Re: Fudoh's ode to old display technology
PostPosted: Mon Nov 26, 2012 12:38 am 


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Here in Portugal we don't have anyone selling BVM's, PVM appears here and there sometimes, but everyone selling them thinks they worth 600€. My 2950 PVM was bought from a guy in spain and shipping was more expensive than the monitor itself. I see some BVMs on ebay, but sellers don't want to ship it overseas :cry: :x


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 Post subject: Re: Fudoh's ode to old display technology
PostPosted: Mon Nov 26, 2012 1:26 am 



Joined: 10 Oct 2012
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fagin wrote:
Just bagged myself a BVM for £46! :shock: :mrgreen:



100 pounds of equipment for £46 sounds good.


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 Post subject: Re: Fudoh's ode to old display technology
PostPosted: Mon Nov 26, 2012 7:33 pm 



Joined: 19 Mar 2010
Posts: 1647
Location: UK
NWrain wrote:
fagin wrote:
Just bagged myself a BVM for £46! :shock: :mrgreen:



100 pounds of equipment for £46 sounds good.



BVM's are going for a lot more than £100 in the UK. There is one on eBay now that is already up to £310 with bids and has 6 days to run yet! lol
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 Post subject: Re: Fudoh's ode to old display technology
PostPosted: Mon Nov 26, 2012 8:10 pm 


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Location: Los Angeles
I am considering picking up a PVM-20M4U (upgrading from my current PVM-20M2U) this weekend. In your opinion, is it worth holding out for a BVM-20F1U to pop up?


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 Post subject: Re: Fudoh's ode to old display technology
PostPosted: Tue Nov 27, 2012 12:17 am 



Joined: 10 Oct 2012
Posts: 242
Location: NTSC-US
The BVM's are pretty nice. However, they are pretty long. I would say to look at the dimensions and make sure you can fit it in your home. Most of the BVM's seem to be sold in California and New York. You may be able to save some money on a BVM monitor that way.

edit: I also picked up a brand new PVM 20M2-MDU. Does anyone know how to check hours on a PVM monitor?


Last edited by NWrain on Tue Nov 27, 2012 7:11 am, edited 1 time in total.

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 Post subject: Re: Fudoh's ode to old display technology
PostPosted: Tue Nov 27, 2012 3:57 am 



Joined: 04 Sep 2010
Posts: 1801
Location: Denmark
I say go for an 20L5 just for the 480p support. 480p gaming hardware such as the PS2, Gamecube and Wii look much crisper on a CRT than on a LCD.

Wii games actually look stunning which they certainly do not on any modern display.

I've decided to pick up a L5 as soon as I can locate an affordable one. A nice desk top unit to complement the B&O I'll be getting late next year.


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 Post subject: Re: Fudoh's ode to old display technology
PostPosted: Tue Nov 27, 2012 7:11 pm 



Joined: 04 Sep 2010
Posts: 1801
Location: Denmark
Speaking of the L5, has anyone ever been able to find an usage hour counter for this model? It seems most "newer" professional displays have this feature but no one I ask seems to be able to give me that number from anywhere in the unit menu.

Would be nice to be able to verify what sort of wear a unit has before purchasing one for posterity.


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 Post subject: Re: Fudoh's ode to old display technology
PostPosted: Thu Nov 29, 2012 2:32 pm 



Joined: 01 Jul 2011
Posts: 52
@ fagin i was watching that BVM. Nice get :D

Anyone have any experience or knowledge of the Sony PVM-2054QM, cant find anything about it??


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 Post subject: Re: Fudoh's ode to old display technology
PostPosted: Thu Nov 29, 2012 3:31 pm 


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Does anybody know if PVM-2054QM's are 600 or 800 line screens?

Edit: derp, didn't even see the post above.


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 Post subject: Re: Fudoh's ode to old display technology
PostPosted: Thu Nov 29, 2012 3:58 pm 



Joined: 01 Jul 2011
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SharkSkin-Man wrote:
Does anybody know if PVM-2054QM's are 600 or 800 line screens?

Edit: derp, didn't even see the post above.


Thats basically what i want to know and also what years they were made approx.


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 Post subject: Re: Fudoh's ode to old display technology
PostPosted: Fri Nov 30, 2012 1:38 am 


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kamiboy wrote:
I say go for an 20L5 just for the 480p support. 480p gaming hardware such as the PS2, Gamecube and Wii look much crisper on a CRT than on a LCD.

Wii games actually look stunning which they certainly do not on any modern display.

I've decided to pick up a L5 as soon as I can locate an affordable one. A nice desk top unit to complement the B&O I'll be getting late next year.

I considered the 20L5, actually, but the digital support is a little confusing to me. Would this actually degrade the picture quality for low res games? I primarily use my PMVs for 8 and 16 bit gaming consoles so that is my primary concern. Would those games look as good or better with the 20L5 compared to the 20M4U?


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 Post subject: Re: Fudoh's ode to old display technology
PostPosted: Fri Nov 30, 2012 2:43 am 



Joined: 04 Sep 2010
Posts: 1801
Location: Denmark
Necronopticous wrote:
I considered the 20L5, actually, but the digital support is a little confusing to me. Would this actually degrade the picture quality for low res games? I primarily use my PMVs for 8 and 16 bit gaming consoles so that is my primary concern. Would those games look as good or better with the 20L5 compared to the 20M4U?


What do you mean by digital? The L5 is just a multi sync monitor. Should look exactly like any other 800 line PVM with 240p/480i stuff.

Only thing ditital about it is the SDI option to accept various professional digital video formats. But that is not relevant for our purpose, we just have consoles with their analog outputs.

I really want an 20L5, but now I may have found a smaller L2 with very low hours on it, so I might go for that instead.

So damn hard when you cannot have everything. Cheap, low hours and multi sync.


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 Post subject: Re: Fudoh's ode to old display technology
PostPosted: Fri Nov 30, 2012 5:35 am 


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Posts: 2009
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There is a guy pretty local to me selling a 20L5 in "excellent" condition according to him. I may go take a look this weekend. I talked him down to $150 and he says he will go no lower. Would you guys consider that to be a reasonable price for this unit?


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 Post subject: Re: Fudoh's ode to old display technology
PostPosted: Fri Nov 30, 2012 9:31 am 


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Location: Germany
absolutely. Great price! Pick it up an report back. I would pick up an L5 to check out the 480p quality, but they're impossible to find over here.


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 Post subject: Re: Fudoh's ode to old display technology
PostPosted: Fri Nov 30, 2012 9:34 am 



Joined: 19 Mar 2010
Posts: 1647
Location: UK
Picked the BVM up last night. Been up since 6:30am "tuning" it. :roll: :shock: :mrgreen:

Unreal for adjustments..... like brilliant unreal.

Mine has a slide out remote board to adjust EVERYTHING (including.... wait for it, Convergence over the entire screen in sectors - this gave me an immediate hard-on!!) via pots. Much easier than faffing around with a service menu imo.

I'm not sure where to start as this is one serious piece of kit. Also my Wii U has just arrived so I'm all over the place at the moment! :mrgreen:
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 Post subject: Re: Fudoh's ode to old display technology
PostPosted: Fri Nov 30, 2012 9:42 am 


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which exact BVM model did you get ? A small one or a big one ? How many hours on it ?

Quote:
'm not sure where to start as this is one serious piece of kit

the channels above 90 have test patterns on them. Do a full convergence and geometry adjusment first. On mine those settings are neccessary for four different sets of settings (Underscan/Overcan, 4:3/16:9 in all four variations). I would use one 4:3 for "fullscreen" systems and the other for 224-line systems.


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 Post subject: Re: Fudoh's ode to old display technology
PostPosted: Fri Nov 30, 2012 9:55 am 



Joined: 19 Mar 2010
Posts: 1647
Location: UK
I don't have a menu Tobias..... this is a proper analogue chassis "old skool"! ;)

It's a 900 line BVM-2010P (20").

Don't worry.... I've used proper test patterns to get the geometry and convergence spot on. :)

Christ knows how many hours but the tube is proper mint. It certainly pre-dates yours.
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 Post subject: Re: Fudoh's ode to old display technology
PostPosted: Fri Nov 30, 2012 11:58 am 


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At the price you paid there's nothing to complain about. Total bargain, no matter how old the unit is.


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 Post subject: Re: Fudoh's ode to old display technology
PostPosted: Fri Nov 30, 2012 12:40 pm 



Joined: 19 Mar 2010
Posts: 1647
Location: UK
Just taken the top of the unit off and the date stamp on the tube is 1987. It's 25yrs old!!!! :shock:

That is truly unbelievable as the image is outstanding.

They sure for shit don't make them like they used to and this alone is testament that the units age (and presumably fairly high hour usage) doesn't have to be a negative at all.

I'm honestly shocked.
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 Post subject: Re: Fudoh's ode to old display technology
PostPosted: Fri Nov 30, 2012 12:43 pm 


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Location: South Wales
I've got a 1985 PVM-1371QM that has a flawless picture too.

As long as there's no burn the old Sony CRTs are always a good buy :D
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