Marantz 8002 Power Cord Issue , Unit "clipping"

[jelliemillie]

Hi Guys

I took Peters advice and started an new thread.

I have recently taken possesion of a Marantz 8002 from Hong Kong.

The unit was tested in store , however at home using the original plug and adaptor it is "Clipping".

Is it the plug? I have tried 2 different adaptors.

Someone recommended PC cable.Is that just normal PC cable from Dick Smith?etc

Any advice welcome

Cheers

mannie

[yamapro]

At what level is the amp clipping? When do you notice it?

It is highly unusual that an OEM power cable could be responsible for an amp overloading and sending DC down the line to the speakers... perhaps not impossible but it would surprise me if it were. That said using an Aussie plug without the need for a travel adapter is an excellent idea and a cheap one too.

Would definitely like to hear more about your actual problem though...

[betty boop]

Hi Guys

I took Peters advice and started an new thread.

I have recently taken possesion of a Marantz 8002 from Hong Kong.

The unit was tested in store , however at home using the original plug and adaptor it is "Clipping".

Is it the plug? I have tried 2 different adaptors.

Someone recommended PC cable.Is that just normal PC cable from Dick Smith?etc

Any advice welcome

Cheers

mannie

suggest buy a standard aussie power cord anyways. but doubt that has anything to do with the "clipping" perhaps if you can relate to us what is actually happening and in what conditions to give you the suspicion that you are having clipping ?

worth indicating what sort of speakers your using as well, what sort of sound levels and how you have setup etc. as might be another reason why you are experiencing this.

[jelliemillie]

suggest buy a standard aussie power cord anyways. but doubt that has anything to do with the "clipping" perhaps if you can relate to us what is actually happening and in what conditions to give you the suspicion that you are having clipping ?

worth indicating what sort of speakers your using as well, what sort of sound levels and how you have setup etc. as might be another reason why you are experiencing this.

Thanks for your interest Alebonau and Yamapro

I originaly had all the speakers (Focal Electra 906 front,Electra subwoofer, Elac 301 rear no Centre yet) and component cables connected and it was doing this"clipping".

Then I disconnected everything and the same continued.

When I switch it on it stays on for about 5- 10 secs and then it simply switches off.

I am about to go to radioparts to see if they have a suitable replacement cable.

To date I have not been able to go any furhter than this , in so far as calibrating setting sound levels etc.

Thanks in advance

Mannie

[mwd]

Short Circuit somewhere ? Self Protection cutting in.

[betty boop]

Thanks for your interest Alebonau and Yamapro

I originaly had all the speakers (Focal Electra 906 front,Electra subwoofer, Elac 301 rear no Centre yet) and component cables connected and it was doing this"clipping".

Then I disconnected everything and the same continued.

When I switch it on it stays on for about 5- 10 secs and then it simply switches off.

I am about to go to radioparts to see if they have a suitable replacement cable.

To date I have not been able to go any furhter than this , in so far as calibrating setting sound levels etc.

Thanks in advance

Mannie

that doesnt sound like "clipping" clipping is not a noise you get which is I think is what your saying your experiencing when the amp is hooked up or not. clipping is normally when you drive the speakers with an underpowered amp and it starts to "clip" the sound when running out of puff.

if your getting a clipping sound then I'd suspect somethign wrong electrically somewhere. check you havent got a short happening somewhere in the hookup as suggested by mwd.

even though it was all fine in HK its also possible that something has come loose inside or failed. and if any of the obvious checks cant determine whats wrong you might need to get it looked at to get it fixed.

[geoff888]

As mwd says, that is not clipping and is the auto protection circuit kicking in as a result of being overdriven or short cicuit (most likely).

I'm assuming it is a 230/240V unit? Double check it is not switched to 110/120V at the back. Also HK is 220V (Australia 230V) don't know if it makes a difference.

[jelliemillie]

that doesnt sound like "clipping" clipping is not a noise you get which is I think is what your saying your experiencing when the amp is hooked up or not. clipping is normally when you drive the speakers with an underpowered amp and it starts to "clip" the sound when running out of puff.

if your getting a clipping sound then I'd suspect somethign wrong electrically somewhere. check you havent got a short happening somewhere in the hookup as suggested by mwd.

even though it was all fine in HK its also possible that something has come loose inside or failed. and if any of the obvious checks cant determine whats wrong you might need to get it looked at to get it fixed.

You are right

What I thought I was hearing as "clipping " was it simply cutting off, it wasn't clipping at all.

I went to a local electrical repairer , who checked it out.

It turns out that the "pure direct "mode was switched on and the unit was switching itself off as an auto protection mechanism.

On the marantz if you want to play music only it has a button called Pure Direct, and somehow it was switched to on , and I had no idea what it meant .

Now for the fun stuff , since this is my first time in connecting one of these units, so far I have not been successfull

in getting it to work.

I'm sure I am doing something basic wrong.

I guess having 4 wisdom teeth and a back molar pulled out tomorrow will give me 4 days off and pleanty of time to study the manual.

thanks for your responses .

Cheers

Mannie

[petetherock]

Switching on Pure Direct will NOT cause the tripping

It simply cuts off extraneous circuits to get a better audio signal. Something on your amp is causing a short and the protective circuit to cut in. You may wish to ask your electrician to open the casing to check for loose wires as well in case something came loose in the shipping.

You can also use a test pen to check for a 'live' chassis

[jelliemillie]

Switching on Pure Direct will NOT cause the tripping

It simply cuts off extraneous circuits to get a better audio signal. Something on your amp is causing a short and the protective circuit to cut in. You may wish to ask your electrician to open the casing to check for loose wires as well in case something came loose in the shipping.

You can also use a test pen to check for a 'live' chassis

Thanks Peter

I will check it out.

Cheers

Mannie