Seeburg V200 alignment of Contact Plunger Block

[jeffinmn]

I've been having problem with some B sides not picking up so I aligned the plunger block. This fixed the problem on all B sides but caused a few of the A sides to be missed. In looking at the alignment, if the contact plunger block is perfectly aligned so the pins are centered over the rivets on the Tormat Memory unit, then the A side pins are off a little. I found that right hand screw (when viewed from the back)  holding the arm to the mechanism that the contact plunger block is connected to was loose a good bit.  When I tightened the screw it made the alignment issue worse. 

I checked the guide roller adjustment and it seems OK but there is some play in it. It does spring back after I move the mech and then release it.  I'm wondering if I should adjust it to swing the contact plunger block into alignment. Otherwise I could insert a washer between the arm that holds the contact plunger block and the mechanism to try and correct the alignment problems. I'm looking for recommendations and suggestions or any other ideas so that the A and B sides of the contact plunger block match perfectly. 


Thanks.  

[robnyc]

I assume you have the original contact block here. On these the A and B plungers are in-line front to back. On the K-up where the mech scanned faster the plungers are offset to compensate.

I think the real issues are:

Detent (read out switch) applying a too-short pulse. Move the blades slightly closer

Excessive wear in the phenolic surface plate on the plunger block. This will cause the pins to lag a bit, but it should not be a problem --IF-- the pulse is long enough.

Excessively worn plungers that don't have adequate overtravel. Pull down on the block. Pins should have about a 1/16 to an 1/8 overtravel.

I've used V and VL commercially since 1986 and still have them in retro locations. If you watch the 0A2 regulator tube(s) dim slightly during scan you'll see that at some points the pulse widths vary as mech travels. This is due to slight irregularities in the star wheel that actuates the readout lever and contacts. Move the readout contact blades as close as possible without causing too much sparking at the tormat rivets. Sparking does no damage, but will build up carbon deposits that cause erratic readout and require cleaning.

RobNYC

[Ron Rich]

Do you have the Service and Parts manuals ? Most all of your questions are answered there ! If you don't, refer to our FAQ's for a place to purchase it. Do you have a "V-200, XV-200, or a VL-200"? Has it been modified with a "speed up kit" ? Ron Rich

[jeffinmn]

I do have the manual which I how I learned to make the various adjustments. I have a V200. I ask here to get the advice from experts such as yourself who have many years of experience working on these jukeboxes.

[Ron Rich]

OK--but only you can SEE your phono, the rest of us need to guess what has/has not been done in 50 years to it by "someone". If you say that you have the manual, but the ask specific questions that are covered there, we can only base answers on the manual-- Did you try the "trouble shooting section" of the Manual-- if so are the "W" contacts modified as per suggestion there ? Do you have a TSR-1, or -3 installed in your phono ? Which style "Detent switch" is installed ? Ron Rich