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AKAI X-1810D LOW HUM WHEN RECORDING REELS

I have an Akai X-1810D. When you record a reel to reel tape, there is a low background "hum" with the recording. When you play back tapes recorded on a different deck, this hum is not present, and vice-versa. I've cleaned, demagnetized, e.t.c. I'm thinking that this may have something to do with the bias head or main head. Any helpful tips will be greatly appreciated.

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  • Audio Player... Master
  • 1,267 Answers

I am not an expert in the repair of Akai units- most of the time I refuse them, however just to put you on the right path, the hum is coming from a power supply issue in the record audio section or may be in the bias section. You may need to put new Electrolytic caps in the power supply to resolve this. You can also scope the supplies on this deck to find the cause. I commonly work on Teac, Pioneer, Otari, Studer, Sony and better made decks. Some brands are real trouble and are more costly to repair due to poor construction.
I have been doing repairs for 40 years so far.

Posted on Sep 07, 2012

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6 Suggested Answers

6ya6ya

6ya staff

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SOURCE:

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Posted on Jan 02, 2017

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robotek

Graeme Ross

  • 1512 Answers

SOURCE: Repairing or replacing old tape decks

Hi m522posner

There is a surprising interest in "vintage" hifi products these days. Your tape machines probably needs new belts. Check this site out. You can get spares for your tape machine here. Belt kits are $17. He does repairs also, but the transport to and from may be an issue for you. I suggest emailing Bob, he may be able to refer you to someone in CA > I could do the repairs,but I am in Australia. :)

Vintage Electronics
P.O. Box 941
1241 Conestoga Creek Rd
Florissant, Co 80816

Email: [email protected]


You could have a go at freshening up the belts yourself:)

regards
robotek

Posted on Jul 12, 2008

Anonymous

  • 1 Answer

SOURCE: play back on Sanyo mr-929 reel-to-reel tape recorder is backwards

I also have an MR-929. The information that you need is in the 'Stereophonic 4 track stereo''. As stereo is only two tracks, there is another 2 tracks in addition to the one you are listening to. Wind the entire reel to the empty spool, and then play that. As you have to physically turn the reel over to do so, you should then hear the other tracks (or track, if recorded in mono).
I use my 929 to play my parents recording of my family from the late 60s, which were recorded on a valve (tube) Ferguson machine, which had a green "magic eye" level indicator, which as a child I found fascinating!

Howie

Posted on Apr 15, 2009

Grubhead

Grubhead

  • 5699 Answers

SOURCE: My AKAI GX 636 records but can't hear anything on playback

Trace the wires from the head to the amp section. Put your finger on where they join (during playback) and see if you can get a buzz. If you can't on either channel, look for something that might be common to both channels. Either a switch, or a pre-amp IC, as being the cause of the fault.

Posted on Aug 06, 2009

Fred Yearian

  • 5603 Answers

SOURCE: Hi my Dad has an Akai 1710 reel to reel tape

Most of the old tape units had rubber "pucks" and belts thaat drive the reels..

The pucks tend to dry out and deteriorate. You MIGHT be able to restore them a bit with the spray used to restore typewriter plattens.

Posted on Nov 15, 2009

Gary Thomas

  • 2 Answers

SOURCE: Hum from vintage Akai DV-4000 open reel tape deck

I have an Akai 4000ds Mkii which had quiet but noticeable hum. I managed to fix it entirely but I had to remount the transformer in a different position and orientation, presumably to 'balance' the magnetic induction it caused in the chassis. I further reduced the hum by adding some steel sheet to the chassis. All this has to be done by trial and error using scrap steel so you need to be exceptionally careful about where the various mains tags are located. You may not be prepared to move so far away from the original design but I suspect your hum is caused by mains induction from the transformer shooting around the chassis. If these currents pass through the chassis anywhere near the playback heads, you are likely to get significant hum.

Posted on Mar 05, 2010

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