Author Topic: What's up with my RK-9000 (Read 1681 times)

RetroHollywood · « **on:** Mon, 31 October 2011, 13:37:05 »

I purchased a Rosewill Rk-9000 (with blues) and have been having some "issues" with it, and am trying to decide if they are serious enough to return it. I thought the experts here would know if they were common, serious, my imagination, etc.

Problems:
-Right shift key feels different from all other keys, more specifically a bit spongier. Removed and lubricated stabilizer and tested switch pressure (normal). No change.
-Spacebar squeaks like crazy. Heavily lubricated stabilizers. No change.
-Arrow keys all have different pressures, including on the switches themselves.

Anything I can do to remedy these? Is the keyboard flawed? Are my expectations just too high?

itlnstln · « **Reply #1 on:** Mon, 31 October 2011, 13:41:19 »

How long have you had it? Sometimes you need a week or two to break the switches in, especially blues from what I understand. I have had the spacebar squeak on a few Costar 'boards; I'm surprised lubing it didn't help. Did you lube up by the cap?

Lanx · « **Reply #2 on:** Mon, 31 October 2011, 13:45:54 »

i've fixed some used keyboard keys by banging them in with the butt end of the screwdriver, of course the barbarian approach doesn't work well all the time (now i just desolder and put in fresh switches).

RetroHollywood · « **Reply #3 on:** Mon, 31 October 2011, 13:46:15 »

I have had it for about a week, with pretty heavy use. I've probably put about 20-30 pages through it, plus normal internet forum use.

I really went after the spacebar. Anywhere the stabilizer bar went, I put lube there.

itlnstln · « **Reply #4 on:** Mon, 31 October 2011, 13:48:55 »

I wonder if it was damaged in shipping and has a bent plate or something. I would see about sending it back.

noodles256 · « **Reply #5 on:** Mon, 31 October 2011, 13:56:25 »

looks like you used all 10 milllion actuations

sorry

c0rbin · « **Reply #6 on:** Mon, 31 October 2011, 15:26:08 »

Speaking of actuations... what exactly wears out to warrant most Cherry MX switches being rated for only 50 million presses?

itlnstln · « **Reply #7 on:** Mon, 31 October 2011, 15:28:45 »

I think it's just a SWAG. Probably corrosion or reduced springiness on the contacts or something. Chattering has been observed by some.

alaricljs · « **Reply #8 on:** Mon, 31 October 2011, 15:29:47 »

carbon forming on the contact points from arcing might impede the switch from actuating after that many. Otherwise it's really just the tactile switches wearing. I know I've had microswitches fail from carbonization.

itlnstln · « **Reply #9 on:** Mon, 31 October 2011, 15:32:56 »

I wonder if anyone has ever hit 50 million + on a Cherry switch (other than a machine). I would imagine most people would replace a keyboard for other reasons before the switches actually start to malfunction.

LaneWeaver · « **Reply #10 on:** Mon, 31 October 2011, 15:44:02 »

Regarding the spongy right shift key, I too had this problem. I ended up swapping the stabilizer out from another key (the '+' key on the numpad) and the issue went away. It had something to do with the stabilizer not collapsing all the way - it was collapsing into the base of the switch.

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Author Topic: What's up with my RK-9000 (Read 1681 times)