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Agoraquest • View topic - Help With CDP-X707ES Cd Player

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View topic - Help With CDP-X707ES Cd Player

Help With CDP-X707ES Cd Player

This forum addresses questions on installation, configuration and troubleshooting you might encounter with your Sony MD/CD/SACD.

Moderator: jttar

by Maxxwire » Thu Nov 08, 2007 8:15 pm


On 2007-11-08 16:24, bradster56 wrote: I was told not to change the plug being that there is no 3rd wire (ground) on the Sony cable..so what would be they point (they say).



I could sit here for hours on end and recount all of the wonderful and highly effective visual and sonic improvements I've been able to realize by upgrading the Plugs on the factory ungrounded power cords of my CD Player, FM Tuner, TV, 533 Mhz Digital Video Processor, Headphone Amp and most of all the Power Amp.

I'm very glad that I didn't listen to those "it must be ground for a Plug upgrade to be effective guys" before I did all of the Plug upgrades on all of those those ungrounded powercords because today both my Audio and Video performance would be a small fraction of the quality they are now.

~Maxx~
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by bradster56 » Fri Nov 09, 2007 6:06 am

I understand and agree with your points...I am a man of many tweeks although not plugs...yet. Is there a tutorial out there regarding the plug exchange? I know it's a simple procedure but a little guidance never hurts.
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by RickeyM » Fri Nov 09, 2007 5:00 pm

A tutorial you say? Parts Express has a  tutorial  on making an IEC power cord. You just have to do the part pertaining to attaching a plug. Since you don't have a ground wire to worry about, just tighten down that screw terminal and don't concern yourself with it.
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by bradster56 » Fri Nov 09, 2007 6:11 pm

Thanks..i found the site and will do the plug transplant when i get it back. 
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by Maxxwire » Fri Nov 09, 2007 6:25 pm

bradster56- If you are careful to maintain the correct polarity you'll do just fine with the Plug transplant.

When do you expect the X707ES back from the shop?

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by bradster56 » Fri Nov 09, 2007 7:10 pm

I was told possibly this weekend..but it may wind up being sometime next week.
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by bradster56 » Sat Nov 10, 2007 10:31 am

Rest in peace stock Sony plug  I installed the Furutech plug myself  
 
X707 back at home with new loading belt installed and drawer problem has been resolved...disc reader cleaned (laser lens i assume) along with slide rail gears tweaked..total cost 186.38

Playing Midnight Oil as i type this...more critical listening to follow..but i like what i hear so far..Thanks for all the good advice and i hope to get another 15 years from this player.. 


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by DaveKramer » Thu Nov 29, 2007 11:22 pm

Hello guys,

I’m new here and I’m newbie in audio tweaking.

I was reading some posts in your forums and I discovered this topic about the CDP-X707ES CD player and its power plug.
I’ve recently acquired a used CDP-X707ES from Japan (named CDP-777ESJ there) in perfect condition and I got it back at home in France.

The player is a 100-130V unit same as yours in the USA. I got the service manual and it appears the 100-130V and 200-240V units use exactly the same power transformer (PT901) with exactly the same reference number. And, when I opened the unit, I noticed the AC protection fuse is a 250V / 2A and not a 150V one (???).
Now, I want to convert this player in native 200-240V to directly plug it in power socket at home in France without using a voltage converter that causes dynamic losses in sound (and also make an IEC socket on the player).
My question is for Sony’s audio specialists here: CDP-X707ES/CDP-777ESJ’s power transformer is it bi-voltage transformer (100-130V and 200-240V capable) or not?

Thanks

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by jehill » Fri Nov 30, 2007 12:37 pm

I just looked at the same service manual that you looked at and it apears to me either the same part number is used for both or there is a typo and one of the two part numbers listed is incorrect.  Its not uncommon for fuses in 120VAC circuits to be rated at 250VAC, so I wouldn't jump to conclusions based on that.  If it were me, I would open up the unit and take a close look at the connections on the transfomer.  Most dual volatage units include a 120V/240V selector switch.  In the absence of such a switch, its probalby one voltage or the other.
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