Marantz TT400 turntable user manual - Marantz Audio Players & Recorders

Yes. Most probably belt is broken. Download the service manual from given link and replace the belt as per procedure given in the manual.

Marantz TT-4000 Service Manual, Service Manual, Repair Schematics (electronica-pt.com)

Service manual, (not a User Manual), available by login at the site below:

https://www.hifiengine.com/manual_library/marantz/sr-82.shtml

vinylengine.com

The Vinyl Engine has the manual for free download. All you have to do is register with them (again, free).

http://www.vinylengine.com/library/marantz/6150.shtml

These are no more in the market and it is possible that you can get help from the support site of Marantz. So please log on to the link below and post your query;

http://us.marantz.com/us/ContactUs/Pages/ContactUs.aspx

Check on vinylengine.com for a Users Manual. You can download it for free once you register. The gear wheel might not be set right. If that doesn't help, pick up a 6100 Service Manual. I think I bought mine on ebay for about $10

My Marantz 6110 wasn't working right. I had it repaired at a stereo store. They told me the grease was old and had hardened which made it difficult to operate the way it was supposed to. They cleaned it and used new grease. It's been working great for the last 10 years. I hope this helps.

As you Marantz 6025 is a belt drive type turntable, the most possible problem is that the belt has been cut or destroyed. You can check it out before order a new one.
Here is the replacement procedure. Pull up the rubber mat, pull up the platter and find the belt. If the belt is removed from the platter, replace it with the glossy side outward. Pull the platter back at the original position. Turn until one of the 2 big openings come over the motor pulley. With your finger place the belt from the platter at the motor pulley. Pull the rubber mat back. You are ready. Here is a schematic for all the above:


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Stelios
direct FixYa link: http://www.fixya.com/users/technical114

http://www.retrevo.com/support/Marantz-TT-15S1-Amps-manual/id/511dj893/t/2/

Just register and it's free.

Hi go to marantz web at www.marantz.com.

All manuals available there

Good luck