got as far as this so
it must have been the transit screw which was never tighthent but now once I undid that I get the noise but the door doesn't open nor does eject work.
At least my National DP-350 works even though that was listed as junk.
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| National DP-350 revisiting https://forum.lddb.com/viewtopic.php?f=17&t=10125 |
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| Author: | xtempo [ 20 Nov 2021, 02:14 ] |
| Post subject: | National DP-350 revisiting |
so I have looked at this before am now trying to figure out competely what's wrong with it. the buttons don't work, doesn't take a disc and the stylus is stationary. I wonder if now there might be a transit screw that I don't know about preventing some things or maybe a dead motor or so gears not greased. |
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| Author: | xtempo [ 20 Nov 2021, 18:23 ] |
| Post subject: | Re: National DP-350 revisiting |
I suppose I need some lubricant for the gears but the belts are tight so I don't think that would be an issue . there is a noise so maybe the motor works. Wish there were some english sites or somebody could help to get this repaired. I hate to get rid of it since I wasted shipping on the thing and it powers on. |
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| Author: | rein-o [ 20 Nov 2021, 19:30 ] |
| Post subject: | Re: National DP-350 revisiting |
Wish I could help, I would just try to start with simple stuff and look at the LD repair guides, belts aren't an issue to me at this point if you can't get any other functions to work yet. I would look at ribbon cables or even stuck motors where the gears are. Also was this working when you got it or was it one of those listed as junk players from Japan? |
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| Author: | xtempo [ 20 Nov 2021, 20:41 ] |
| Post subject: | Re: National DP-350 revisiting |
I think junk but did work some when i first got it. |
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| Author: | rein-o [ 20 Nov 2021, 21:54 ] |
| Post subject: | Re: National DP-350 revisiting |
Ah so then if it was working I would look for capacitors or loose ribbon cables or even any wire connectors that may be loose or need to be taken off cleaned with contact cleaner then put back on. That's where I would start. |
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| Author: | xtempo [ 20 Nov 2021, 23:35 ] |
| Post subject: | Re: National DP-350 revisiting |
got as far as this so it must have been the transit screw which was never tighthent but now once I undid that I get the noise but the door doesn't open nor does eject work. At least my National DP-350 works even though that was listed as junk.
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| Author: | xtempo [ 21 Nov 2021, 01:17 ] |
| Post subject: | Re: National DP-350 revisiting |
thinking and tinker some more I do believe it might work if I can ever get some lubricant /contact cleaner though I do not know which to get. |
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| Author: | rein-o [ 21 Nov 2021, 02:41 ] |
| Post subject: | Re: National DP-350 revisiting |
Deoxit for contact cleaner, I know some have said the white lithium grease you can get that at hardware and I think I've seen it at wallyworld. Some have also said to use other but I can't remember. Make sure you get that old grease off if you think that's the issue. |
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| Author: | xtempo [ 18 Jan 2022, 20:31 ] |
| Post subject: | Re: National DP-350 revisiting |
finally got the grease. I'll try it sometime this week. I need to get the contact cleaner sometime though. |
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| Author: | xtempo [ 14 Oct 2022, 16:58 ] |
| Post subject: | Re: National DP-350 revisiting |
finally am starting this but I don't know what exactly to grease. Any ideas? The belt and other gears are stuck but I don't know how to grease anything so if you can please help. thank you. 
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| Author: | xtempo [ 14 Oct 2022, 20:40 ] |
| Post subject: | Re: National DP-350 revisiting |
does this even look like it would work as a needle. 
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| Author: | rein-o [ 15 Oct 2022, 15:34 ] |
| Post subject: | Re: National DP-350 revisiting |
I've never seen one in person so I can't add any help here, hope others can help with stylus and greasing. |
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| Author: | xtempo [ 16 Oct 2022, 18:42 ] |
| Post subject: | Re: National DP-350 revisiting |
rein-o wrote: I've never seen one in person so I can't add any help here, hope others can help with stylus and greasing. After talking to a friend I guess I am getting rid of it since I've had it since Lexington and there could be something more wrong with it since the eject doesn't work. I have the other one smaller one so I am fine. |
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| Author: | rein-o [ 16 Oct 2022, 22:57 ] |
| Post subject: | Re: National DP-350 revisiting |
Hope you can recoup some money and sell it as parts on ebay or to someone who can use parts. |
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| Author: | xtempo [ 17 Oct 2022, 12:14 ] |
| Post subject: | Re: National DP-350 revisiting |
yea I hope so |
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