Help! Granddaughter playing my KN7000 while I was out and now I've lost the sound completely. Tried factory reset via Program Menus / Initial / etc, as well as holding down 3 lower left Rhythm Group buttons while powering on. Still nothing. Granddaughter told me there was a "bump" when it stopped. Does that sound like something's blown? Any suggestions?

Mike

Do you by any chance have a volume pedal plugged in to your keyboard as this may have been moved so you hear nothing? I hope you don't mind me suggesting this but it happened to us when we had the keyboard out and someone else had been playing. Good luck.

Unfortunately that's not the problem. The volume pedal was already disconnected, and I have since also disconnected the 4-pedal foot switch. Still no sound.

Hi there Mike.

May I suggest you go into 'Program Menus' 'Sound' 'Monitor Setting' and switch to (ON)

Yours muscially

Midge

Hi there Mike.

May I suggest you go into 'Program Menus' 'Sound' 'Monitor Setting' and switch to (ON)

Yours musically

Midge

Thanks for the suggestion, Midge. Checked that, and the setting was 'On'.

I've just found that using headphones, and in a very quiet room, I can JUST hear the sound. Interestingly, the volume (albeit very low) is not changed by moving the Main Volume fader. Seems to me like an amplification stage has died.

Hi Mike,
If you connect an external Amplifier to the Line Out sockets, can you hear the sound?
If you can, then it looks like the Power Amplifier module in your KN7000 has given up the ghost!

Also, the 'Bump' which your Granddaughter reported, would suggest that something failed.

No, Bill. Same result. I get a very faint sound thru the amp if I turn up the volume high. The KN7000 manual's a bit confusing on p200 - it mentions Line Out and Main Out in the block diagram but on the rear panel there are only Main Out sockets. So I used the R/Mono Main output. I also tried the Sub output after assigning Right 1/Right 2/ etc to Sub output as per p161, but got the same faint output again.

Hello Michael,

I have my KN7000 connected direct to the amplifier using the Main Out with the red plug in the 'Right' and the other in the 'Left' - if it's any help to you.

I assume you have checked all the usual things such as: is the volume down or muted, is the modulation wheel up in the 'max' position when it shouldn't be. Are the Part Settings at an audible level or maybe turned off. Have you tried taking out the leads and replacing them. Do you perhaps need a new Mains lead (with constant use they can sometimes become split and therefore not make proper contact).

Finally are you using an SD Card if so, try another one, the first could be faulty.

When I had a similar problem many moons ago, it turned out to be the amplifier connection. The wires in my amp are only held in by clips and one of these had pulled away slightly.

Just some ideas for you. I'll be interested to know what the answer is if, and when, you find out.

Audrey

Hi guys,
Stupid question,BUT, when all else fails, go back to basics.
Are your volume levels up?
Also could be faulty headphone jack.
I had a friend (RIP)had a problem similar,with sound,cannot remember all the details, but was caused by a faulty H/P jack.
Do you have one or two H/P outlets? (These small things have limited functions LOL) but worth a try ?????
Ray
,

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Ray The Saint

Many thanks everyone for your suggestions. I've been thru every one of them and checked and double-checked the settings and connections. Unfortunately the result is unchanged, so it's off to the repair man. I'll post an update when I get my keyboard back.

Got my keyboard back today - all working again. The problem was a faulty -15V DC regulator, which was replaced. The repairman assured me it was nothing to do with my granddaughter's use of the keyboard - it was just an unfortunate failure of a part.

Good to hear that you got it repaired, and that there is spare parts to find.

I remember many years ago when a salesman visited me with a KN keyboard to try
out.
Youngsters still kids, and wanted to play, but acted a kind of hard handed in
my opinion. When I told them calm down, the salesman said that I should not
worry, if the keyboard could not stand the kids playing even a bit rougher than
we usually do, better not buy it. It's a instrument for all family to use, not
any knick-knack thing. I never forget what he said.
The top KN series are build like tanks, let the kids or grandkids have fun.

Happy Playing
GJ

Spare parts could be a worry, and that crossed my mind when I took the keyboard in for repair. I guess the -15V DC regulator is a generic part and so didn't have to be a Technics component, although I didn't ask about that.

KN7000 users may like to know (or may NOT like to know) that when I took the keyboard in and explained the problem, the repairman said that hopefully it will just be the negative 15V DC regulator. Seems to imply it wasn't the first case he'd encountered!

Silly question I know but is there a life span on this part,where would it be situated in the keyboard and can the part be purchased and replaced easily, just thinking if anything like this was to happen to my 7000 I would be devasted where on earth in Spain would I get this fixed

I am in the same boat as casarosa, I also spend most of my time in southern Spain.
It would be interesting to know for sure
if that part can be "generic" and also where
exactly it fits.
Mike, if you could check with your repairman
we would be grateful.
Fredy, alias peeanoplayer

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That voltage regulator is a standard OEM part and is readily available. This is the second failure that I am aware of for that part. Fran Durham's KN7000 also needed that part replaced.

I was talking to a genleman at Panasonic recently about a problem with my KN7000, in passing I asked if the KN7000 can still be repaired, he said they have a small network of repairer's available. I also asked if spare parts were still available and his reply was - Oh Yes !!

Glen

interesting there is a Ebay site that sells new 1:6 model KN7000 boxed and brand, NEW from the far east, possiblymade by the contract factory that made the KN7 for Technics,they have offered KN7's on internet sitesas new so it makes you wonder how many spares are out there????.
regards John.

[This message has been edited by jd5live (edited 01-22-2009).]

I've just received the following information from my repairer regarding the -15V DC Regulator, and Technics spares in general: "Technics used a KIA7915 (made by Kia). Any other branded part seems to work fine. Technics don’t make the part so any reputable supplier should do. As far as Technics parts being available. Some are ... some are not. Basically we try to order what we need and see what happens. Technics do offer a PCB recycle facility in Japan where they repair / refurbish the faulty boards. This is available only through Panasonic agents. You cannot go directly."