[Jukebox-list] Rowe/AMi JAL200 search unit

Tue May 1 10:29:01 PDT 2007

Hi Jim / Ron,

I have had Rowe search units where the wipers are like both of yours. I
think they must have changed the production style over the years, from
riding on the fingertips to riding on the knuckles.

There are many variants, but all are compatible. Some are gear drivem, some
belt driven. Some have connector at top, some on side. Some 100 select ones
with only half the pins fitted.

Also, like Ron says ,they wear, or sometimes the ends snap off - they are
impossible to set up properly then.

In your case, I think a bit of adjustment on the wipers will cure the
problem. The Rowe search unit can be an interesting little thing at times !!

Nigel

-----Original Message-----
From: jukebox-list-bounces at lists.netlojix.com
[mailto:jukebox-list-bounces at lists.netlojix.com] On Behalf Of Ron Rich
Sent: 01 May 2007 04:00
To: Jukebox mailing list
Subject: Re: [Jukebox-list] Rowe/AMi JAL200 search unit

Jim,
  You have stated your problem--the letter wipers have worn away. They
should be the same as the number wipers. Those boards were not "perfect" and
short wipers are near impossible to get adjusted so that they reach all
"pads". Ron Rich

dirksenj at bellsouth.net wrote:
  Thanks Nigel - I do have the manual, and did take a look at the wiper 
adjustments - they looked good to me, so I didn't touch them. But the 
adjustment is made at the top (JK) segment. I took a closer look tonight, 
and it appears that the circuit board is off center slightly. It's hard to 
see the AB letter segment on the inside bottom, but it looks like one of the

"fingers" on one set of wipers is actually in between traces on the circuit 
board at this point and is not touching the AB segment. As I rotate around, 
the wipers look centered up pretty good 180 degrees from there. Have you 
seen this problem? Surely the circuit board hasn't shrunk on one side only. 
One other thing - the wipers are not like the manual shows - the letter 
wipers are touching the circuit board with the tips of the "fingers" (like a

rake), not with the "heels" like the manual shows. Did they change this, or 
is it a misprint in the manual? The number wipers are like the manual shows,

with the "heels" touching. I will try to move the circuit board a little to 
get better contact on the AB segment. Thanks,

Jim
----- Original Message ----- 
From: "Nigel Pugh" 

To: "'Jukebox mailing list'" 
Sent: Monday, April 30, 2007 4:40 PM
Subject: RE: [Jukebox-list] Rowe/AMi JAL200 search unit

> Couple of things:-)
>
> Firstly, try removing and re-seating the comb connector. That can be 
> erratic
> if its been removed, and differ on differing combinations of letters and
> numbers.
>
> Secondly, if you remove the search unit and rotate the front wiper 
> manually,
> for the segments that you say are not selecting correctly, are the letter
> and number wipers both correctly positioned on the hot spots ?
> You may need to adjust the wiper position to ensure they are. It could be
> there is a bit of play and they need adjusting accordingly, amd it just
> happens to be out of tolerance on the selections you're having problems
> with. If you have the manual, it describes exactly how to set this up. If
> you don't have the manual, and don't know how to do it, don't mess until 
> you
> have read it in the manual, or you will end up getting no selections at 
> all!
> You can remove the search unit completely, and leave it plugged in and 
> make
> selections whilst holding it in your hand. It may make spotting your 
> problem
> easier.
>
> My money is on the second suggestion.
>
> I hope that helps you a little.
>
> Regards,
>
> Nigel, UK
>
> -----Original Message-----
> From: jukebox-list-bounces at lists.netlojix.com
> [mailto:jukebox-list-bounces at lists.netlojix.com] On Behalf Of
> dirksenj at bellsouth.net
> Sent: 30 April 2007 04:15
> To: jukebox-list at lists.netlojix.com
> Subject: [Jukebox-list] Rowe/AMi JAL200 search unit
>
> I'm having problems with the search unit on a JAL200. Letters A and B 
> won't
> select, but all others seem to. If I press A1, the search motor will spin,
> the number sprag relay energizes, but it seems to me the letter sprag 
> relay
> energizes a hair too soon, so the armature doesn't fully engage the slot 
> in
> the sprag wheel. Since the armature doesn't make the full stroke, the pin
> pusher doesn't work, nor does the machine start to scan. If I press C1, it
> works just fine. All search unit contacts have been cleaned and checked 
> with
> a meter, and all adjustments seem to be correct. The circuit board and
> wipers are nice and clean. I have replaced the capacitor and rectifier in
> the power supply, and the machine functions fine other than this. The 
> cable
> from the keyboard to the search unit checks fine. Should I be looking in 
> the
> keyboard? Maybe a slightly dirty contact is not allowing the relay to pull
> in with full force? Should I replace the diodes and capacitors in the 
> search
> unit? Any help will be most appreciated.
>
> Jim
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