Dual 606 - Full Service

[@daveg.4772]

Recently purchased a Dual 606 off eBay to pair with a locally sourced Marantz 2245. I'm 66 and the Dual/Marantz component combination was what I lusted after as a young man. Maybe not exactly these particular models, but whatever, I could never have afforded them anyway. Just wanted to say thanks for the video. Like most things, once you see how these things are done (I'm a visual learner), it takes a lot of the mystery and fear out of looking under the covers of your gear. At least, it does for me. Thanks again!

[@TheHeed1969]

Excellent video, serviced my turntable. Easy steps to follow. 👍

[@Poppinwheeeeellllllieeeeez]

The mute switch is open during playback. The mute switch closes during end of record and when not in play. The conacts ground the red /green and White /Blue leads together "muting" the signal. This is common to all dual turntables.

[@paul1s1]

hey what cartridges work on these? i’m a bit confused on the “ulm” thing. i’ve seen posts that say they can use any 1/2” mount cartridge and also posts that say they need specific cartridges. i’ve come to the conclusion that the dual 621 has versions of both, how can i tell the difference?

[@TurntableGuy]

Ortofon OM series are well matched to the ULM tonearm. But there's nothing stopping you from trying any 1/2 inch mount cart.

[@williamsarver2491]

There’s also some wierd adjustments concerning resonances with certain cartridges- I have this table

[@Toxtoxer]

So this is a Direct-drive turntable! Quite nice, it doesn't seem to have a target light, just a strobe light, but it could be a good DJ turntable if the whole suspended system is not too bothersome.

[@ve2jgs]

The turntable motor does not accelerate quickly, motor power is very low. Also the tonearm is very delicate. I don't think it's a good choice for DJ use, despite being of very high quality. Go with Technics for a DJ turntable.

[@Toxtoxer]

​@@ve2jgs Ah, not the best choice then, of course any from the Technics SL-1200 would work nicely but it's rather out of my range earnings wise, for now at least, perhaps if I'd want to go for something cheap I'd go for a modified Numark PT01, sadly it doesn't have a big platter though.

[@dry509]

How would I change the audio cables and the ground wire? It hums but goes away when I jiggle the cables.

[@etr1985]

Can I use the regular 3-en-1 oil to lubricate the motor? I didn't find the blue label 3-en-1 oil specific for motor in any store in my city.

[@terrypotter8662]

Hi! Have been enjoying your repair/maintenance videos for a while now. Is there a way to lubricate the lift pin without removing the tone arm? Thanks!

[@TurntableGuy]

On a Dual, I think you have to remove the tonearm, but, check the service manual. Downloadable from vinylengine.com

[@frankbizzoco1954]

I have a sound issue with my 606. If o don't use it for a day and then go back to it, I get a heavy bassy buzz going on. Its not like the sound where its not grounded right. This is a huge growl. I have the know how to solder if need be. When I turn, or manipulate the rca cables going into my AVR, the sound goes away. But I have to do this every time I turn it on. There are no videos besides yours on youtube to take a 606 apart. Any idea what that heavy buzz might be?

[@danielmakuch3094]

My 606 just recently started turning way too fast and everything sounds like a chipmunks record. Do you know where to start investigating the cause of this problem? I don’t see any bad caps is there a motor speed or position sensor somewhere that could be bad/dirty?

[@TurntableGuy]

Does it have the SM840 motor?

[@danielmakuch3094]

@@TurntableGuy it has the EDS 500 motor

[@michaels-r448]

Turntable guy: is there a way to calibrate the tracking force so it’s “more” accurate? I found a 606 in great shape at a record store. I’m using you video to service. When I installed the my tester stylus (requires 2.5 grams) I had to set dial to 3 to measure 2.49 on scale. Thx

[@charlesfinnegan7930]

Are most of the dual turntables similar maintenance/ repair? of course I am not talking about the idler motor models.

[@ElectoneGuy]

Yes, pretty similar. I have a lot of Dual videos on my channel.

[@thomasvdl228]

I just got a Dual 604 which looks almost identical, but it gave up on me during its first week... This video was a great help to inspect the mechanics, which seem fine. I suspect a blown fuse, as it won't spin or light up, but I can't seem to find it. Would you know where the fuse is located on these models?

[@TurntableGuy]

Check vinylengine.com for the service manual

[@drummer-d4w]

Hi. Is this service work for the Dual CS 650 too?

[@TurntableGuy]

Should be pretty similar

[@dotdotdot5215]

does this turntable have a pre amplifier in it?

[@TurntableGuy]

no