My Japan Spec Vellfire ZG 2.5 Alpine player model EX11v keep restarting ?? What I should do now ??

Some units are only in Japanese because they are specifically for the Japanese home market. There is a trick. Get a smartphone with the Google Translate App on it and use the camera feature to translate what is seen on screen. Look for Settings / Language.

https://www.google.com/search?q=alpine+x9nx2+change+language+to+english

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Yes, this happens all the time. Have a read of this Tip I wrote a few days ago.

https://www.fixya.com/support/r29874205-need_vehicle_radio_code

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Unless other specified in paperwork, all Alpine receivers are 4ohm capable only.
Now yes there are exceptions, but not many.
Now for amp almost all alpine amps can be run in several different resistances.
Basically for sure 4ohm, now depending on model some have abilities to go as low as 1ohm stable. But for most 2 ch alpine non special amps are all 4ohm and most 2ohm capable.
Now better models can do things such as run 2,3,4 ch. And some can even get to .5 ohm loads stable.

If its a grey import there is not much chance of that , if its a local model you need to plug in a dedicated scan tool to change custom settings .

sub spec 250watts per coil you should be just fine I have 2 typr 15s on orion hcca 2500 1 and it kicks a$$ thats 1000 watts over the rated limits of the subs only shut the amp down once these subs can take a lot more power than they say just use your common sence with the volume and gain levels

Still waiting for answer of cn hds630d to change language Japanese to English

Hi,
Please get the code here : www.regionfreedvd.net/ www.dvdripper.org/dvd-region-codes-vs-ntscpal/ www.regionfreedvd.net/players.html
www.dvdreviewer.co.uk/Forums/...region_code/page1

Best Regards, Jay__9onh

go with alpine

got a short somewhere in the ground and or power wire... check all your wire's again make sure nothing is touching metal or another wire...

Try another repair shop. We repair stereos everyday without schematics.