PSR Tutorial Forum
PSR Keyboards (11 Boards) => PSR-SX900/SX700/SX600 => Topic started by: rene1242 on May 12, 2022, 06:34:10 PM
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Greasing the Sx900 mine had rattling keys and i decided to grease it --the grease i used is slighty thicker and has a better consistensy in my opinion its called white lithium grease https://www.aliexpress.com/item/1005003549765692.html?spm=a2g0o.productlist.0.0.75726bcc0ixXo4&algo_pvid=f13d9698-d510-47ad-86f2-212b6e795d52&algo_exp_id=f13d9698-d510-47ad-86f2-212b6e795d52-14&pdp_ext_f=%7B%22sku_id%22%3A%2212000026250071631%22%7D&pdp_npi=2%40dis%21EUR%21%211.14%21%21%21%21%21%400bb0623a16523760990241970e8ff7%2112000026250071631%21sea
Its important that the old grease is cleaned and applied ( the picture in display shows the old grease which had a very little amount and caused wobbly / rattling keys Marked with Arrows
after cleaning everything and applying grease. Now I can say that the keys feel rock solid and ive been using it for months now with no problems it even feels more solid than from when i bought it new
The process is not hard however theres lots of screws of different sizes and patience(and assortment of screws and keeping organized is required)
on the process i used the service manual in reality i didnt need it but it kept me well up to date what to expect
I suggest go to a shop to do the procedure if you have no electronics repair background.
This is the before and after i took a small clip on https://files.fm/u/9bnwxupfc#/
[attachment deleted by admin]
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I've opened the mine by watching youtube videos. Is not hard as you say. It's easy but it needs about 3-5 hours work.
I've used Synco Lube grease for mine A5000. It was a very good choice. After two months of intensive use still quiet keys :)
By the way, you have to regrease the inner side of all keys too, and the contact surface between black and white keys like in my pictures.
(https://i.ibb.co/XYFrjBk/IMG20220415191544.jpg) (https://ibb.co/FH8Lmvq)
(https://i.ibb.co/bRW4prr/IMG20220415181720.jpg) (https://ibb.co/84KyFjj)
(https://i.ibb.co/BGKsZr6/IMG20220415181134.jpg) (https://ibb.co/r3fy6cp)
(https://i.ibb.co/bQm2NfL/IMG-20220512-211945.jpg) (https://imgbb.com/)
That said, those who think that the guys at Yamaha have fixed the problem in the new models are sorely mistaken.
The black keys on my new PSR-A5000 were noisy right out of the box.
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I've opened the mine by watching youtube videos. Is not hard as you say. It's easy but it needs about 3-5 hours work.
Yes indeed, I greased all the parts you mentioned it's not hard as you say, but for someone who hasn't done a similar job can be hard yes that's why I recommend to do this kind of job to someone experienced
And yes synco lube is good as well ;-)
I've used Synco Lube grease for mine A5000. It was a very good choice. After two months of intensive use still quiet keys :)
By the way, you have to regrease the inner side of all keys too, and the contact surface between black and white keys like in my pictures.
(https://i.ibb.co/XYFrjBk/IMG20220415191544.jpg) (https://ibb.co/FH8Lmvq)
(https://i.ibb.co/bRW4prr/IMG20220415181720.jpg) (https://ibb.co/84KyFjj)
(https://i.ibb.co/BGKsZr6/IMG20220415181134.jpg) (https://ibb.co/r3fy6cp)
(https://i.ibb.co/bQm2NfL/IMG-20220512-211945.jpg) (https://imgbb.com/)
That said, those who think that the guys at Yamaha have fixed the problem in the new models are sorely mistaken.
The black keys on my new PSR-A5000 were noisy right out of the box.