Zenith allegro 1000 - Gemini PT-1000 II Turntable

THEY ARE NO LONGER MADE .

look on line for a phono cartridge, replace the old one. wires are standard and color coded.

The manufacturers of such items would usually buy in such hardware as record turntables from fairly standard catalogues.

One popular brand of turntable was the BSR but the design of other brands were similar. The metal gears aren't for driving the turntable but to drive the multichange mechanism so when one record has finished playing another will drop from the stack loaded onto the extended centre spindle.

This type of turntable is driven by a synchronous motor with a multidiameter spindle via a moveable idler wheel equipped with a soft rubber tyre. Lack of maintenance causes many problems and as the rubber tyre ages it tends to harden and lose traction on the inside of the steel turntable so when the record reaches the end and the metal gears engage there is insufficient torque and everything stops.
It is for that reason many older examples have had the multichange removed or disabled.

Removing the turntable centre motif should reveal a circlip which when removed will allow the turntable to be removed for maintenance.

Generally speaking all you need to do is find the left and right channels leads from the old deck to the amp, cut them off or if thy plug in somewhere unplug them, then you can connected the playback leads of the new deck to the amp and it will then play back.

how old are you

Did you try a Google search for the product name and model number? ( Example: Zenith Allegro DVD VDR progressive scan model number xxxxxxx manual.) You should be able to find the manual on-line if you have the model number (not the serial number).

Manuals can be downloaded here in pdf format (Needs a pdf reader such as Adobe Reader to view the document.)
http://136.166.4.200/contents/STB/ABV341.htm


Direct link to owners manual
http://136.166.4.200/contents/STB/ABV341/ABV341_Owners_Manual.pdf

I did find a manual for the abv341 manual...perhaps there something here that might help you:

https://www.manualslib.com/products/Zenith-Abv341-Series-4031192.html

I have the same model with the 8 track player, original manual, and original receipt dated 1975.