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What a Pain In The Ass!I love the sound of the JMW 9T but for every action, there are 3 seemingly unrelated and baffling reactions.
No help in having an arm for each cartridge; sure the VTF and Azimuth are preset but the VTA changes and in this case it changes enough to require fucking (that's an industry term) with the lift mechanism alignment.
Edits: 04/09/14Follow Ups:
Success!!
From which to which?
I am just as knocked out about the excellence of my ZYX R-50 yesterday as when I first installed it months ago.
I bought it as a demo from Mehran with around 100 hours on it. He gave me a verbal six month replacement guarantee. After 40-something sides I found that it wouldn't cleanly track the last cut on side one of 88 Basie Street. I called him and asked his opinion: VTF, arm compatibility; the usual things. He unhesitatingly offered to send it to Japan for inspection if I would ship it to him in Chicago. I agreed, sent it along and put the recently Soundsmithed Aurum Beta S back in service.
XYX informed us that the cartridge tested "as new" but that "the trackability was low", which they adjusted. After just 60 days or so the cartridge was returned to me, without any shipping charges, wrapped as new.
I'm sure, judging by the gear he sells, that I am small potatoes to Mehran but I was treated like a rich man. Better yet, of all the many cartridges I've installed, none has had the immediate impact on my listening enjoyment as the R-50. It might not be up there with the $5-15,000 group, but it's a big step up from anything I've heard in the under $1,000s.
Oh. It tracks the Count Basie just fine now which may have more to do with my new "car crash" method of measuring VTF at record height as any adjustment ZYX made.
Cassette cases or something along those lines will take away the "crash potential." I set my VTF in the same area as you do.
M~
i am currently installing (attampting) a jmw12 on my tnt. since i am not sure if i am keeping it or not, i am trying to make due with the armboard that was on it on which sat an sme. round 2 is tonight. i think i am making progress. the cartridge is on the armwand at least and i liked how easy it was to mount and hook up the wires. i agree that height may be an issue as it probably won't be ideal given the cobbled together nature. sounds like the actual adjustment will take patience. at least this one has the vta on the fly.
Tom Collins
A simple twist of an allen doesn't seem too daunting, but I feel your frustration.
Mine(Classic) has decided to not lift the arm high enough even though it's maxed.
I can manually lift it the few mm's necessary, but the weight of the arm causes it to sink.
Is there another adjustment other than the vertical housing position?
This thing in currently a piece of $h#t since it doesn't function properly.
I'm assuming they are the same lift assembly?
I have a Classic 3 Arm and had the same issue. I contracted VPI and they told me to adjust the allen head screw which is located in the top middle of the arm just above the central pivot point. By adjusting this screw you can raise the entire height of the arm up or down depending on the type of cartridge you have. Prior to this I had the VTA adjusted on the tower all the way down and this was still not enough to get the arm parallel with the record and I had the same issues with the cuing mechanism even with the adjustments.
This completely solved the problem. Why they don't include this information in the operating manual is beyond me.
I hope this helps you.
Thanks for the response Greg.
"adjust the allen head screw which is located in the top middle of the arm just above the central pivot point"
As you can see the arm adjustment is pretty much bottomed out also.
Where the heck is this allen head?
Can you snap a pic where this is located?
Is there an allen head next to where the wires exit on top of the arm?
Yes the allen head screw is right next to where the wire exits the top in the exact center as shown in your photo. The allen screw is recessed inside the hole in the very top. It takes some effort to adjust this screw but this solved my problem.
If you shine a flashlight into this hole you will see the screw.
I cant remember which size allen wrench to use.
I hope this solves your problem.
Sorry you're having such problems, it can be frustrating. I got it done without cartridge mayhem and maybe the following helps you:
Don't know if the Classic is like mine but there are two sets of Allen screws to control arm pillar height. One set, at the very base of the arm which allows/locks movement of the pillar in the collar that sits in the board and another which allows/locks movement of the arm rest/cueing lift assembly.
If you remove the the arm rest/cueing lift assembly and release the Allen bolts on the collar, you will be able to move the pillar up and down with the gnurled collar.
Still having problems? VPI support is excellent but they don't always answer the phone or e-mails on the first try. I had arm height issues on my HW-19 until I made my own armboard but Harry offered to machine my arm post assembly down no charge.
I have 2 quibbles with the set-up:
1) the Allen bolts at the rear of the assembly being difficult to access
2) The cueing mechanism not having a thingy (another industry term) to maintain alignment with the Teat (see above) on the underside of the arm.
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