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 Post subject: Re: NEC XM/XP 29/37 Pro/Xtra Thread
PostPosted: Mon Feb 12, 2018 7:04 pm 



Joined: 02 May 2013
Posts: 207
This is going to sound dumb, but given that the XM29 Plus can't do the HSync ranges between 15.75 and 31.5KHz, what linedoubler would be recommended for piping output of a 286 computer with EGA (via an Extron RGB202 Plus, which I can confirm outputs RGBI piped to it as analog RGBHV) graphics?


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 Post subject: Re: NEC XM/XP 29/37 Pro/Xtra Thread
PostPosted: Tue Apr 17, 2018 2:01 pm 



Joined: 19 Feb 2018
Posts: 7
I just purchased two NEC Xp29's. Would the XM29 service manual apply to the XP29?


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 Post subject: Re: NEC XM/XP 29/37 Pro/Xtra Thread
PostPosted: Tue Apr 17, 2018 2:07 pm 



Joined: 04 May 2014
Posts: 170
Location: germany
Fanatik wrote:
I just purchased two NEC Xp29's. Would the XM29 service manual apply to the XP29?


Nope, it will not.


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 Post subject: Re: NEC XM/XP 29/37 Pro/Xtra Thread
PostPosted: Thu May 03, 2018 2:48 pm 


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Joined: 08 Dec 2014
Posts: 71
Location: MN
I got my PG-2740 Service Manual back from Phil a while ago, so he should have a scanned copy for everyone now! How's everyone's XM adventures going?


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 Post subject: Re: NEC XM/XP 29/37 Pro/Xtra Thread
PostPosted: Wed Jun 20, 2018 3:22 pm 



Joined: 26 Jan 2017
Posts: 24
I recently acquired an XM29+. Are there any geometry settings aside from what is in the main vertical/horizontal menus? I’m having some issues with the corners...they all seem to want to be doing their own thing.


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 Post subject: Re: NEC XM/XP 29/37 Pro/Xtra Thread
PostPosted: Wed Jun 20, 2018 7:34 pm 



Joined: 02 May 2013
Posts: 207
Tapeworm wrote:
I recently acquired an XM29+. Are there any geometry settings aside from what is in the main vertical/horizontal menus? I’m having some issues with the corners...they all seem to want to be doing their own thing.


Am wondering the same myself. It is somewhat distracting when playing games on console, or my GroovyMAME box.


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 Post subject: Re: NEC XM/XP 29/37 Pro/Xtra Thread
PostPosted: Thu Jun 28, 2018 9:46 am 



Joined: 01 May 2017
Posts: 10
I got a NEC XM29 plus recently too. Image is beautiful, but geometry is a bit meh. I have a scuff in the glass, i saw in the manual that it has some coats, someone knows about it?. Thank you!


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 Post subject: Re: NEC XM/XP 29/37 Pro/Xtra Thread
PostPosted: Sat Jun 30, 2018 5:37 pm 



Joined: 26 Jan 2017
Posts: 24
How do these handle non-shielded speakers? I have a pair of Paradigm Mini Monitors I want to put about 3.5 feet from each side.


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 Post subject: Re: NEC XM/XP 29/37 Pro/Xtra Thread
PostPosted: Sat Jun 30, 2018 6:24 pm 


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Joined: 09 Aug 2017
Posts: 900
Location: Australia
NightSprinter wrote:
Tapeworm wrote:
I recently acquired an XM29+. Are there any geometry settings aside from what is in the main vertical/horizontal menus? I’m having some issues with the corners...they all seem to want to be doing their own thing.


Am wondering the same myself. It is somewhat distracting when playing games on console, or my GroovyMAME box.


Chances are the convergence magnets on the back of the tube have lost some flux over the past 20 years.
I bet putting a smaller magnet ontop of the current convergence magnets fixes your corner issues.


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 Post subject: Re: NEC XM/XP 29/37 Pro/Xtra Thread
PostPosted: Sat Jun 30, 2018 7:34 pm 


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Joined: 08 Dec 2014
Posts: 71
Location: MN
Tapeworm wrote:
How do these handle non-shielded speakers? I have a pair of Paradigm Mini Monitors I want to put about 3.5 feet from each side.


I had some paradigm atoms on top of mine and I need to degauss now. They're about 12 inches away now and no problems.


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 Post subject: Re: NEC XM/XP 29/37 Pro/Xtra Thread
PostPosted: Sun Jul 01, 2018 9:38 am 



Joined: 04 Jun 2015
Posts: 169
Hieroneus wrote:
I got a NEC XM29 plus recently too. Image is beautiful, but geometry is a bit meh. I have a scuff in the glass, i saw in the manual that it has some coats, someone knows about it?. Thank you!


I've successfully removed scuffs from a XM29 Plus (XM-2960) before. I used Novus 2 with an orbital polisher using felt pads. There's a few good guides on arcade otaku for removing scuffs and scratches.

It takes a while to do as you have to remove the anti-glare coat from the whole screen, otherwise if you only do the section with the scuffs, then the remaining anti-glare coat will make the screen look very uneven. It's a messy job and something you want to do outside if you can. Mask off as much as you can of the monitor to stop the Novus compound from going everywhere.

I have a few photos that I can dig up if you require.

Good luck!


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 Post subject: Re: NEC XM/XP 29/37 Pro/Xtra Thread
PostPosted: Sun Jul 01, 2018 12:08 pm 



Joined: 01 May 2017
Posts: 10
Thank you, can you send me the photos please?
When you talk about coats, are a plastic, crystal, tube directly?


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 Post subject: Re: NEC XM/XP 29/37 Pro/Xtra Thread
PostPosted: Tue Jul 03, 2018 7:51 am 


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Joined: 25 Mar 2015
Posts: 65
Hoagtech wrote:
I was stuck on the horizontal Width issue on my Mitsubishi XC3725C from a similar era as the xm29.

I was able to fix this issue because XGA from shmups hit me up and showed me the service manual where "service switch" was located.

I was finally able to adjust the margins to true full screen by adjusting the SUB width. Does anyone have a service manual for the xm29? I would be happy to check for you guys.

Here's my switch location. It was bitch (16 screws)

Image
Image

I've seen a similar switch inside my XC-3730c, but was never sure what it was actually for, and it is sadly a model where a service manual sadly just doesn't seem to exist for it.

Is there a certain direction or process you're supposed to do to make use of the service mode, or ???

I've actually been planning on (attempting) a recap on it in the near future, and any additional information I can get on the model, the better.
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 Post subject: Re: NEC XM/XP 29/37 Pro/Xtra Thread
PostPosted: Tue Jul 03, 2018 8:56 am 



Joined: 04 Jun 2015
Posts: 169
Hieroneus wrote:
Thank you, can you send me the photos please?
When you talk about coats, are a plastic, crystal, tube directly?


I imagine the coat was sprayed directly onto the face of the tube back in the factory. The NEC XM's are not like some of the Sony BVM's and PVM's that have a plastic film that can be peeled off.

Annoying scuff marks on tube

Image

Rotary polisher with felt pad and Novus 2

Image

Coating being removed

Image

Almost there!

Image

Finished

Image

Scuff marks were very visible in use, now completely gone along with the anti-glare coating

Image


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 Post subject: Re: NEC XM/XP 29/37 Pro/Xtra Thread
PostPosted: Tue Jul 03, 2018 9:06 am 



Joined: 04 Jun 2015
Posts: 169
KatKya wrote:
Hoagtech wrote:
I was stuck on the horizontal Width issue on my Mitsubishi XC3725C from a similar era as the xm29.

I was able to fix this issue because XGA from shmups hit me up and showed me the service manual where "service switch" was located.

I was finally able to adjust the margins to true full screen by adjusting the SUB width. Does anyone have a service manual for the xm29? I would be happy to check for you guys.

Here's my switch location. It was bitch (16 screws)

Image
Image

I've seen a similar switch inside my XC-3730c, but was never sure what it was actually for, and it is sadly a model where a service manual sadly just doesn't seem to exist for it.

Is there a certain direction or process you're supposed to do to make use of the service mode, or ???

I've actually been planning on (attempting) a recap on it in the near future, and any additional information I can get on the model, the better.


From memory, the switch centred is for normal use. Moving the switch to the left or right will allow you to adjust different options from the service mode, however nothing is displayed with the OSD, so you need to know what you are doing. I *think* I have some notes somewhere for the XC-3730C. Perhaps we need to create a thread for the Mitsubishi XC and AM range, rather than hijacking the NEC thread though?


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 Post subject: Re: NEC XM/XP 29/37 Pro/Xtra Thread
PostPosted: Tue Jul 03, 2018 9:25 am 



Joined: 01 May 2017
Posts: 10
xga wrote:
Hieroneus wrote:
Thank you, can you send me the photos please?
When you talk about coats, are a plastic, crystal, tube directly?


I imagine the coat was sprayed directly onto the face of the tube back in the factory. The NEC XM's are not like some of the Sony BVM's and PVM's that have a plastic film that can be peeled off.

Annoying scuff marks on tube

Image

Rotary polisher with felt pad and Novus 2

Image

Coating being removed

Image

Almost there!

Image

Finished

Image

Scuff marks were very visible in use, now completely gone along with the anti-glare coating

Image


Thank you, how much time do you need to remove the coat? With hand is impossible, isnt it?
If only is a soft scuff, could go away with a little of novus?


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 Post subject: Re: NEC XM/XP 29/37 Pro/Xtra Thread
PostPosted: Tue Jul 03, 2018 12:08 pm 



Joined: 26 Jan 2017
Posts: 24
That buffed screen looks great! But scrolling through those pics pictures gave me anxiety.


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 Post subject: Re: NEC XM/XP 29/37 Pro/Xtra Thread
PostPosted: Tue Jul 03, 2018 12:56 pm 


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Joined: 08 Dec 2014
Posts: 71
Location: MN
Interesting to see that the signature NEC XM purplish tube sheen is actually the anti-glare coating!


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 Post subject: Re: NEC XM/XP 29/37 Pro/Xtra Thread
PostPosted: Tue Jul 03, 2018 2:02 pm 



Joined: 04 Jun 2015
Posts: 169
Hieroneus wrote:
xga wrote:
Hieroneus wrote:
Thank you, can you send me the photos please?
When you talk about coats, are a plastic, crystal, tube directly?


I imagine the coat was sprayed directly onto the face of the tube back in the factory. The NEC XM's are not like some of the Sony BVM's and PVM's that have a plastic film that can be peeled off.

Thank you, how much time do you need to remove the coat? With hand is impossible, isnt it?
If only is a soft scuff, could go away with a little of novus?


That probably took me a full hour with the rotary polisher. I imagine it could be done by hand, but it would take hours and hours and you'd be pretty tired by the end of it.

Any sort of abrasive (like Novus) will start the process of removing the coat. If you think it's only a minor scuff, you could try with a (clean) microfiber cloth and some distilled water to see if that removes it, but I don't like your chances.

Have a look at some of the guides on Arcade Otaku for more info.


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 Post subject: Re: NEC XM/XP 29/37 Pro/Xtra Thread
PostPosted: Tue Jul 03, 2018 2:03 pm 



Joined: 04 Jun 2015
Posts: 169
Tapeworm wrote:
That buffed screen looks great! But scrolling through those pics pictures gave me anxiety.


Yeah, it took me a bit of courage to do it. I did a lot of research first, made sure I had the right tools and took my time when I did it.


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 Post subject: Re: NEC XM/XP 29/37 Pro/Xtra Thread
PostPosted: Tue Jul 03, 2018 2:09 pm 



Joined: 04 Jun 2015
Posts: 169
aaronmjr wrote:
Interesting to see that the signature NEC XM purplish tube sheen is actually the anti-glare coating!


I had to remove a scratch (not a scuff) from a NEC XP37. Funnily enough, I only had to focus on the problem area as if there was an anti-glare coating, it was clear / see through with no purple tint like the 29" models.


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 Post subject: Re: NEC XM/XP 29/37 Pro/Xtra Thread
PostPosted: Tue Jul 03, 2018 4:30 pm 


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Joined: 05 Mar 2018
Posts: 220
seems like removing the coating outright would only be worthwhile if it was badly scuffed, just one or two small imperfections would probably be an acceptable trade off for keeping the glare reduction


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 Post subject: Re: NEC XM/XP 29/37 Pro/Xtra Thread
PostPosted: Tue Jul 03, 2018 10:08 pm 


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Joined: 25 Mar 2015
Posts: 65
xga wrote:

From memory, the switch centred is for normal use. Moving the switch to the left or right will allow you to adjust different options from the service mode, however nothing is displayed with the OSD, so you need to know what you are doing. I *think* I have some notes somewhere for the XC-3730C. Perhaps we need to create a thread for the Mitsubishi XC and AM range, rather than hijacking the NEC thread though?


I'd be totally down for that. Where information for the NEC sets seems relatively simple to find, the Mitsubishi stuff takes a lot more digging to find and get a hold of, if you can find it at all.
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 Post subject: Re: NEC XM/XP 29/37 Pro/Xtra Thread
PostPosted: Thu Jul 05, 2018 7:00 pm 



Joined: 01 May 2017
Posts: 10
Someone have opened a nec? I tried to check if that thing uses one or two crystals, but i couldnt.


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 Post subject: Re: NEC XM/XP 29/37 Pro/Xtra Thread
PostPosted: Sun Jul 08, 2018 2:50 am 



Joined: 02 May 2013
Posts: 207
Pretty sure I asked already, but is it possible at all to fix dead speakers and the external speaker sockets (the ones that look like you'd hook up units from a stereo system to)? I just think it'd be nice to have proper audio from the display.


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 Post subject: Re: NEC XM/XP 29/37 Pro/Xtra Thread
PostPosted: Mon Jul 09, 2018 1:23 am 


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Joined: 27 Apr 2015
Posts: 503
Location: Bellingham, WA
KatKya wrote:
xga wrote:

From memory, the switch centred is for normal use. Moving the switch to the left or right will allow you to adjust different options from the service mode, however nothing is displayed with the OSD, so you need to know what you are doing. I *think* I have some notes somewhere for the XC-3730C. Perhaps we need to create a thread for the Mitsubishi XC and AM range, rather than hijacking the NEC thread though?


I'd be totally down for that. Where information for the NEC sets seems relatively simple to find, the Mitsubishi stuff takes a lot more digging to find and get a hold of, if you can find it at all.


I sent you a PM about the service switch. I did not want to hinack this thread.

I think it is time to start a Mitsubishi thread.
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 Post subject: Re: NEC XM/XP 29/37 Pro/Xtra Thread
PostPosted: Thu Jul 12, 2018 2:24 am 



Joined: 30 Dec 2014
Posts: 474
xga wrote:
Hieroneus wrote:
Thank you, can you send me the photos please?
When you talk about coats, are a plastic, crystal, tube directly?


I imagine the coat was sprayed directly onto the face of the tube back in the factory. The NEC XM's are not like some of the Sony BVM's and PVM's that have a plastic film that can be peeled off.

Annoying scuff marks on tube

Image

Rotary polisher with felt pad and Novus 2

Image

Coating being removed

Image

Almost there!

Image

Finished

Image

Scuff marks were very visible in use, now completely gone along with the anti-glare coating

Image


How bad did the reflections get after you removed the AG coating? Did the picture seemed to get more vibrant?


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 Post subject: Re: NEC XM/XP 29/37 Pro/Xtra Thread
PostPosted: Fri Jul 13, 2018 12:25 pm 



Joined: 04 Jun 2015
Posts: 169
tacoguy64 wrote:

How bad did the reflections get after you removed the AG coating? Did the picture seemed to get more vibrant?


I use it in a dimly lit room, but haven't noticed any difference with reflections. Yes, the image looked brighter once the AG coating was removed.


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 Post subject: Re: NEC XM/XP 29/37 Pro/Xtra Thread
PostPosted: Fri Jul 13, 2018 11:07 pm 



Joined: 30 Dec 2014
Posts: 474
xga wrote:
tacoguy64 wrote:

How bad did the reflections get after you removed the AG coating? Did the picture seemed to get more vibrant?


I use it in a dimly lit room, but haven't noticed any difference with reflections. Yes, the image looked brighter once the AG coating was removed.



Would love to see more in game screen shots if you dont mind.


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 Post subject: Re: NEC XM/XP 29/37 Pro/Xtra Thread
PostPosted: Wed Jul 18, 2018 6:25 pm 


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Posts: 4661
Location: Springfield, Missouri, USA
What y'all think an XM29+ is worth? Good condition, no remote/manual. I'd post in "What's it worth" but I don't think many check that.

I love it dearly but I'm not using it and running out of room (hoarder mentality), and I'd rather see it in the hands of someone who's going to love it equally. I don't want to stiff anyone, and likewise, don't want to just give it away.
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