AT-LPW50 Center Base Assembly Replacement
Last updated on Nov 3, 2026
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Community-Contributed Guide
An awesome member of our community made this guide. It was not created by iFixit staff.
Introduction
Go to step 1 ↓This is a brief guide for replacing the Center Base Assembly on AT-LPW50 Series turntables.
Replacing the Center Base Assembly may resolve speed-related issues, including the turntable not responding properly to speed changes or operating at an inconsistent or incorrect speed at 33â…“ RPM, 45 RPM, or both.
The replacement Center Spindle Assembly can be purchased directly from the Audio-Technica Parts Department using the following part number:
Part Number: TWMT350552503
To order the part, email parts@tli-atus.com and include the following information:
- First and last name
- Deliverable shipping address
- Phone number
- Part number: TWPC18P016B01
Parts orders through this department are available within the United States and Canada only. If you are located outside of the U.S. or Canada, please contact your local Audio-Technica branch for parts availability and assistance.
What you need
Tools
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Unplug the turntable from power and speakers, then place it on a flat level surface
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Using a twist tie, tape, or ziptie, secure the tonearm in place so it won't move after being turned upside-down (do not rely on the tonearm hook alone)
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Remove the rubber slipmat, belt and platter from the center spindle
Ask FixBot
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Flip the turntable upside-down
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Remove 6 Phillips head screws to remove the metal PCB cover
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Remove the screw for the ground wire
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Remove the 4 screws holding the Center Base Assembly in place
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Gently unplug the 4-pin connector of the Center Base Assembly
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Remove the Center Base Assembly
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To reassemble your device, follow these instructions in reverse order. You will need to re-attach the belt to the underside of the platter, and re-balance the tonearm. Here is a guide to re-balancing the tonearm.
