[Jukebox-list] Missing part of Wurlitzer 3700 Service Manual - It finally plays a record :)

[Dave Garcia]

Regarding the question at the end of the email asking where to buy a
replacement "microswitch" P/N 128344, here is a link that might help.  I 
haven't
looked a the specs of the 128344, so I cannot pinpoint the exact cherry 
switch
replacement. 
If another member of this list has the specs of the 128344 handy then we 
can narrow
down what cherry switch Gregor needs to order.

Link is.... http://www.cherrycorp.com/english/switches/miniature/e21.htm

Dave Garcia

Gregor Anich wrote:

>On Friday 09 February 2007 18:49:53 Ron Rich wrote:
>  
>
>>If I recall correctly, it only gets a "pulse". You might check out the
>>circuit that provides that "pulse" as there should be no reason for that
>>solenoid to have gone bad. Unless there is a mechanical "drag" on the
>>solenoid, or the "pulse" is being kept on (such as a "sticking switch?) too
>>long. Ron Rich
>>
>>    
>>
>
>Yes. The solenoid gets current as soon as the READOUT SWITCH #1 hits a latch 
>pin from the selection accumulator and until that switch goes back.
>The switch goes back when the latch pin is cancelled by the cancel magnet.
>The latch pin is (or should be) cancelled as soon as the gripper puts the disk 
>onto the turntable.
>
>Now there's two possible things which could have happened I think:
>1) The gripper arm somehow got stuck, and the latch pin was not cancelled soon 
>enough to prevent the solenoid from melting. I found some pieces of a vinyl 
>record around the gripper... ;)
>2) One of the "side 1 switches" (which are actuated by the side 1 solenoid) is 
>not 100% ok - it could cause the wrong cancel solenoid to get current thus 
>the latch pin is not cancelled and the solenoid not switched off.
>
>Does anybody know where to get those switches?
>The manual lists it as part no. 128344 on Page 39C ("50. Switch (2)")
>
>Thanks,
>  greg
>_______________________________________________
>Jukebox-list mailing list
>Jukebox-list at lists.netlojix.com
>http://lists.netlojix.com/mailman/listinfo/jukebox-list
>
>
>  
>