Phonoland

Guys, I have a 2810 wurlitzer that I am having a devil of a time with getting this thing to make the proper selection. I have cleaned and adjusted the slection assemblely, aka keyboard. Cleaned the pinbank assy and lubed the 3 wheels on the rocker plate.Any help would be greatly apreciated, Blaine

Hi Blane,
More info needed-does it release the correct pin, but stop at the wrong selection ?
If that's the case, need some examples--
Ron Rich

Ron Rich wrote:Hi Blane,
More info needed-does it release the correct pin, but stop at the wrong selection ?
If that's the case, need some examples--
Ron Rich

Ron, Im back working on the 2810 wurlitzer I figured out what the selection problem was causing it to pull the wrong pins. In the bottom of the pinbank under the 2 left and right driver soleinoids there is an aluminum plate with stop tabs that the driver coils stop against . The coils had hammered the tabs and one of the had broken off causing the coil to travel too far pulling the wrong selection.Repaired that plate and re centered the selector assembly as per the manual.The problem im have now is the that the cariage arm jams against the pins . The cariage switch is not activating the reverse circuit. The red relay which i believe is the ry6 reverse relay just buzzes. Any ideas would be great. Thanks Blaine

Hi Blaine,
If you hear a relay "buzzing", I would check that relay--is "something" stuck under the armature--is it making good contact on all blades ? Ron Rich

There are four relays on the back of the junction box. (IRRC) Going left to right; the first three are white and DC, the fourth is red signifying an AC relay coil.

Feeding a DC relay coil with AC will cause it to chatter and buzz.

Beyond that you'll need to measure the DC supply for adequate voltage and it is a good idea to check and e-pit the contacts in the relays.

Rob/NYC

And--to add to what Rob posted--L@@k at the relay itself--do not rely on cover color to determine if it's an AC or DC unit--I have seen "people" switch covers !! Ron Rich

Ron Rich wrote:And--to add to what Rob posted--L@@k at the relay itself--do not rely on cover color to determine if it's an AC or DC unit--I have seen "people" switch covers !! Ron Rich

That is so true. I inherited a box of various cube relays from 10th Ave. Approx 60 of them and there were several cases where the covers were changed.

For those interested in typical case comparisons, here are two relays: (Copy-Paste if link doesn't work).

http://s1192.photobucket.com/user/Rob-N ... ort=2&o=90

Both are typical 24 volt types.

Rob-NYC

Ron Rich wrote:And--to add to what Rob posted--L@@k at the relay itself--do not rely on cover color to determine if it's an AC or DC unit--I have seen "people" switch covers !! Ron Rich

Ron That was the problem . Feeding AC into a DDC relay. Now my problem is the select buttons are releasing but not pulling the pins. It works fine by manually pulling the pins. I think I may have to recap the selection receiver. All plugs are in the correct place. Blaine

Hi Blaine,
yep--done seen dat too many times !! Check your keyboard--be SURE all closed ( with buttons down) leaf switches, ARE, in fact, making good contact-- Ron Rich

Ron Rich wrote:Hi Blaine,
yep--done seen dat too many times !! Check your keyboard--be SURE all closed ( with buttons down) leaf switches, ARE, in fact, making good contact-- Ron Rich

Ron , How important is a ground from the keyboard to the selection receiver. I didn't put the breaa ground strips back on the inside of the cabinet sides to ground everything together . Do the plugs that go from the key board have their own ground wire or is it grounded through the chassis. Thanks Blaine

Hi Blaine,
In all honesty--I dono--but I do know it is not legal to run any machine that was factory grounded, with the grounds eliminated. "Functional" grounds should be in the plugs--however--sometimes these do fail ! Ron Rich

Ron , Thanks for all the help. I think my problem is either the capacitors in the pin bank or in the selection button assy. My question is I have a few 2610 selection assy. Will it work in a 2810 . It has the ABCD buttons and the numbers. Thanks Blaine

Hi Blaine,
I don't know--one would either have to go by a "number" on the keyboard, or study the schematics--I don't know of any published material on this subject for WurliTzer--
Just hada thought--the guys that might know are the used parts suppliers listed above--you might try contacting them --Ron Rich

Ron Rich wrote:Hi Blaine,
I don't know--one would either have to go by a "number" on the keyboard, or study the schematics--I don't know of any published material on this subject for WurliTzer--
Just hada thought--the guys that might know are the used parts suppliers listed above--you might try contacting them --Ron Rich

.
Ron, I've took a little break from the 2810 Sometimes I've found it better to walk away and think about it from a distance. I've got this thing sselecting now and pulling the pins but the wrong ones. If you pull the pins manually it works fine. I think the problem is in the selection rreceiver. My manual says to check the selenium rrectifier for a short. May not be getting the proper voltage to those two big coils. Any ideas. As always Thanks. Blaine

Hi Blaine,
I am really not real familiar with that model, but if the "book" says to check it, that's the "1st thing" I would do---
Ron Rich