Marantz 1070 distortion

[inperson]

I have had this Marantz 1070 for about 10 months now. It was fine when I bought it but about 4 months ago the right channel lost bass and the left channel lost treble. Now when I turn up the volume just a little there is a lot of distortion in both channels. It this problem fixable? The repairmen I take it too in here in China are either too lazy to bother or they just don't know how to repair old solid state. I think a little of both. They want something easy they can make quick money on. I also think they don't have any vintage parts to make repairs on old SS equipment. Any ideas?

Thanks

[Lord Hawthorne]

You probably have transistors failing in each channel, I've had the same thing happen in a number of '70s era Marantz amps/receivers, and they were all repaired. Those transistors can still be found here in the US, I don't know about China, but probably Japan or maybe South Korea. You might want to get the unit new capacitors while it's on the bench.

[inperson]

Any idea of the cost of that kind of maintenance in the U.S.? Generally speaking.

[inperson]

Labor rates are around $75/hr. + parts + shipping. You`ll pay for an estimate which gets deducted from the cost of repairs. This could get pricey.


Ouch! I guess I'll keep trying here in China or sell it for parts. I like the amp but I am limited in my buget.

[Lord Hawthorne]

The parts alone are rather cheap, it's the labor involved that will cost you.

[Metalcreature]

I dont know if you got rid of that Marantz receiver, but i just bought one from this guy, and he is very reasonable when it comes to fixing older Receivers ETC. Try him out. His email address is...

Email: Bob@Vintage-Electronics.net

[coopmv]

I have had this Marantz 1070 for about 10 months now. It was fine when I bought it but about 4 months ago the right channel lost bass and the left channel lost treble. Now when I turn up the volume just a little there is a lot of distortion in both channels. It this problem fixable? The repairmen I take it too in here in China are either too lazy to bother or they just don't know how to repair old solid state. I think a little of both. They want something easy they can make quick money on. I also think they don't have any vintage parts to make repairs on old SS equipment. Any ideas?

Thanks

Take it back to the States and have it repaired here when you take your vacation next time. I think there are some excellent repair shops for Marantz gears stateside.

[coopmv]

I dont know if you got rid of that Marantz receiver, but i just bought one from this guy, and he is very reasonable when it comes to fixing older Receivers ETC. Try him out. His email address is...

Email: Bob@Vintage-Electronics.net

Does this guy have a website?

[PsychFan]

Does this guy have a website?

Yes: here (http://www.vintage-electronics.cc/).

I purchased an old Marantz integrated from him once and was pleased. I'm currently thinking of sending him my Marantz 2230 receiver for service and a few minor repairs.

[coopmv]

Yes: here (http://www.vintage-electronics.cc/).

I purchased an old Marantz integrated from him once and was pleased. I'm currently thinking of sending him my Marantz 2230 receiver for service and a few minor repairs.

Great and thanks for the link. I may send him my vintage Pioneer QX-747, a quad receiver I bought while a college sophomore. My only concern is this 60lbs receiver no longer has the original box and may end up getting busted during transit. His rate certainly sounds much cheaper than SoundSmith.

[coopmv]

inperson: What has it been like walking past the Forbidden City everyday for 10 years?

[inperson]

inperson: What has it been like walking past the Forbidden City everyday for 10 years?


Boring. It looks great and all and if you visit BJ "you have to go" but it is too big and very boring. Room after room of the same looking rooms. The last time I went was 8 or 9 years ago. I don't walk past it everyday, I live a little north of it on 4th ring road, a good 35 minutes by taxi if there is no traffic. BJ was cool 10 years ago when it wasn't so developed but now it is starting to look like any modern city, which I don't really like. It does have its interesting places but they are being torn down pretty fast:shake:

[coopmv]

Boring. It looks great and all and if you visit BJ "you have to go" but it is too big and very boring. Room after room of the same looking rooms. The last time I went was 8 or 9 years ago. I don't walk past it everyday, I live a little north of it on 4th ring road, a good 35 minutes by taxi if there is no traffic. BJ was cool 10 years ago when it wasn't so developed but now it is starting to look like any modern city, which I don't really like. It does have its interesting places but they are being torn down pretty fast:shake:

Have you had the chance to sit on the emperor's throne? :D

[inperson]

I dont know if you got rid of that Marantz receiver, but i just bought one from this guy, and he is very reasonable when it comes to fixing older Receivers ETC. Try him out. His email address is...

Email: Bob@Vintage-Electronics.net

Still got it! I took it to one guy who worked on it. He did change some caps and the distortion was fixed. But when I got it home I found the balance is off. The left channel is stronger and has twice the bass that the right channel has. He said I could bring it back and he would work on it more for free. I don't know if it is worth the taxi ride. It is so hard to get anything done right here! If I say the balance is off to the repairman I am sure he would think, 'so what, just move the balance over to the right until they sound equal' It is hard to find anyone here that has that little extra mentality for detail:rolleyes:

[inperson]

Have you had the chance to sit on the emperor's throne? :D

Like Drew Carey?

Actually it is roped off.

[coopmv]

Still got it! I took it to one guy who worked on it. He did change some caps and the distortion was fixed. But when I got it home I found the balance is off. The left channel is stronger and has twice the bass that the right channel has. He said I could bring it back and he would work on it more for free. I don't know if it is worth the taxi ride. It is so hard to get anything done right here! If I say the balance is off to the repairman I am sure he would think, 'so what, just move the balance over to the right until they sound equal' It is hard to find anyone here that has that little extra mentality for detail:rolleyes:

I still remember back in the early 90's I read about a worker at the Chrysler Beijing Jeep factory who was repeatedly caught napping on his job. All he had to do was to apologize and he kept his job.

[Tullman]

Labor rates are around $75/hr. + parts + shipping. You`ll pay for an estimate which gets deducted from the cost of repairs. This could get pricey.

You said it! I have had a bad run of luck with my equipment lately and it is getting costly. I have a couple of older units sitting dead in the water until I can get the money to fix them. One happens to be a marantz.

[coopmv]

You said it! I have had a bad run of luck with my equipment lately and it is getting costly. I have a couple of older units sitting dead in the water until I can get the money to fix them. One happens to be a marantz.

A vintage Marantz receiver with the blue light and the gyro tuning is cooler than cool. If I had more space, I would have loved to own one.

[Tullman]

A vintage Marantz receiver with the blue light and the gyro tuning is cooler than cool. If I had more space, I would have loved to own one.

So much vintage equipment is cool, until it goes on the fritz.

[coopmv]

So much vintage equipment is cool, until it goes on the fritz.

You know what, this is lilfe. If you have a competent technician doing a good fix, the equipment may be trouble-free for years.

[Tullman]

You know what, this is lilfe. If you have a competent technician doing a good fix, the equipment may be trouble-free for years.

Yeah, I have a competent tech, the only problem is he charges $60. an hour.:(

[coopmv]

Yeah, I have a competent tech, the only problem is he charges $60. an hour.:(

Even so, unless he bills you 10 hours for the repair. Just grin and bear it.

[coopmv]

He`s probably underpriced. You can`t ask him to subsidize your hobby any more than your employer can ask you to subsidize his biz..

Is $60/hr underpriced? I don't know, but I think that may be a fair price for MA, including Boston.

[Kent Teffeteller]

Hi,

Another tip about Marantz repairs. When transistors must be replaced, they must be matched or distortion happens and unbalanced sound. Also, while in there recap the unit too. When this is done, you should be good for another 25-30 years or so.

[coopmv]

Hi,

Another tip about Marantz repairs. When transistors must be replaced, they must be matched or distortion happens and unbalanced sound. Also, while in there recap the unit too. When this is done, you should be good for another 25-30 years or so.

Yeah, I was told by Stephen Sank, a well-known Nakamichi expert who completely overhauled my Nak 700ZXE and has much experience with a number of high end brands like Tandberg and McIntosh that there are now new output transistors that are better than those originally used in the Tandberg 3003 amp. So I am all set. The 3003 is a very sweet amp and I love things that are Norwegian.

:edthumbs: