Phonoland

Hello All.
On my Rowe R-83 the tone arm just misses the start groove on most selections.
I had to change the Shure M-44 to an Audiotechnia cartridge but the weigh exactly the same on a digital grams scale but still have the problem after cartridge change that was not there before.

Any advice is appreciated and by the way Thanks in advance!!
Rich

Hi Rich,
Fairly simple tone arm adjustment--adjustment screw is visible, and shown in the Service manual--just loosen it, and move thetone arm as needed ??
Ron Rich

Thanks Ron!
I do have the manual somewhere.......that is where everything is....LOL

My Best,
Rich

Yep--understand--mine's in a "safe place"
Ron Rich

Adjustment of the set down on the 1100-1200 mechs is a little 'riggy" and involves three items.

Here are the instructions for 1100 series:
Check/adjust this one first if you have changed the cart:
http://s1192.photobucket.com/user/Rob-N ... rt=2&o=109 The stylus should clear by the smallest amount practical.
If the above is setup properly it -may- not be necessary to deal with these:

http://s1192.photobucket.com/user/Rob-N ... rt=2&o=108
The screw that goes through the arm sets the bottom limit of travel. Beginning with the "N" phonos there was a 'no record cutoff" set of contacts added to the vertical height screw assembly. Your machine will have it and I'm surprised it didn't cancel. I disconnected them to avoid drag, so yours might be too.

Not mentioned in the instructions is the crescent-shaped flange at the rear of the arm assembly. This has to clear the lift lever when the arm in set down. If the height adjustment is corrected for the new cart, it probably won't need to be tampered with.

If all parameters are set up well, that arm will work reliably @2 grams. That is what I use on my two MM-1 hideaways.

Rob-NYC

Hi Rich,

Welcome to the forum.
Why did you feel you needed to replace the Shure M44C?

As the other guys have said it is all down to adjustments, for start of leading groove, end of record (reject) and clearence of the gripper bow and weight on the stylus.

Regards
Alan

Alan Hood
ami-man
UK

Hello and Thanks to All!

Should have just look in the service Man as Ron was 100% and it was a simple adjustment. Just slightly moved it a hair as not to throw off the end of record setting and all is working great now.

Alan, last Summer she took a lightning hit and drove me crazy on and off for months. First lost the 7volt supply, rebuilt the necessary diodes and led along with a new voltage regulator just because I was near it.

Both filament leads on the light blubs in the pre amp were so fragile I replaced them for good measure. Got all my power-supply lights up again and still had almost no volume. checked everything I know traced schematics and finally I pulled out the old BK scope and started at square one and apparently the lightning blew out the cartridge, no waveform at all coming out. I subbed it with an old Audiotechnia with a rigged mount and back came my volume!

Sad as it was a vintage M-44-IMS a real workhorse and that is the story.

Take care guys if I can help on old Radio & Television Schematics or odd tubes just give a shout.

Again my T^hanks!
Rich