Thread: Zenith 16D25 Keystoning issue
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Old 08-25-2021, 09:45 AM
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Yamamaya42 Yamamaya42 is offline
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If it is anything like what is seen here on my arvin model 5204cm,

https://i.imgur.com/NBLz7Zf.jpeg
then the 2 things on the side are for Pincushion adjustment and as stated, the rings for centering.
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