[Jukebox-list] A better understanding

[Don]

Hi Karl,

LUCKY YOU !
Ya got to work on equipment that had well done service documentation.

Don



----- Original Message ----- 
From: "Karl" <karlh44 at knology.net>
To: "Jukebox mailing list" <jukebox-list at lists.netlojix.com>
Sent: Tuesday, August 01, 2006 3:45 AM
Subject: Re: [Jukebox-list] A better understanding


>I like it when there are at least two levels of manuals.....the first level
> telling a simple logical path to follow to determine which component is 
> most
> likely to be causing which problem and the next level going into more 
> detail
> including schematics to aid in the repair of components but also more in
> depth diagnostics aimed at techs for problems not resolved at the first
> level. I might have developed a fondness for this type of manual system 
> from
> time spent repairing military weapons systems.
>
> Karl
> Columbus Coin-Op Shop
> 2061 S. Lumpkin Rd
> Columbus, GA 31903
> Shop (706) 507-2963
> ----- Original Message ----- 
> From: "Don" <dontutt at telus.net>
> To: "Jukebox mailing list" <jukebox-list at lists.netlojix.com>
> Sent: Saturday, July 01, 2006 11:59 PM
> Subject: Re: [Jukebox-list] A better understanding
>
>
>> Wes,
>> I's likin' your "stirrin the pot".
>> As and electronics tech with years of experience in service and design my
>> ears always perk up when I see your post...... maybe I might learn
> something
>> new, er I mean old and of great value.  Enjoy the banter and humour too!
>> One of my fields was installing and servicing medical xray machines for
> the
>> Dutch Philips company operations here in BC and Alberta (Canada). Philips
>> had their stuff made all over the world and typically they would produce
> ONE
>> manual for a machine...... and that damned manual was written poorly in
>> three languages.  So it was three times as thick as I needed it to be and
>> contained only one third the info I might have liked to have on days in
> the
>> field when I had the blasted machine in pieces on the xray room floor and
>> could not figure out what the heck the "engineers" meant by what they 
>> said
>> in their twisted Dutch and German influenced English.
>> So it seems some jukes and Philips xray machines have one thing in 
>> common,
>> poorly written service manuals. I got a chance to write a service manual
>> once and I made sure it was thorough and logically laid out.
>> My point is..... we have the manuals we do and it is really nice to have
>> knowledgeable folk like all you guys on here to toss around the facts and
>> fictions of jukes and occasionally..... other stuff.  You really put a
>> personal touch on the dry and occasionally unclear  manuals.  Wish I had 
>> a
>> group like this when I was servicing those xray machines.
>> Keep up the fun and information. No complaints here Atall.
>> Don
>>
>>
>>
>> ----- Original Message ----- 
>> From: "Ron Rich" <ronnnrich at yahoo.com>
>> To: "Jukebox mailing list" <jukebox-list at lists.netlojix.com>
>> Sent: Saturday, July 01, 2006 4:49 PM
>> Subject: Re: [Jukebox-list] A better understanding
>>
>>
>> > Wes,
>> >  I's shamed of you--"stirin the pot" again. The "why" in jukebox (and
>> > almost all other manufactured things), is COST. What happens, in my
> humble
>> > opinion, is following things--'Marketing" dictates what it will/should
> do,
>> > and fit (cabinet style/size), engineers design it, and the "production
>> > people" are charged with the cost of manufacturing it--It then becomes 
>> > a
>> > "game"-engineering says to do it thisaway, marketing says do it for 
>> > this
>> > cost, and production says that is impossible--OK, says engineering, if
> you
>> > "cut this" it will be less expensive--production says, you can also 
>> > save
>> > time ($$$) by doing this--marketing says "will it still work?" and
>> > everyone agrees that it will "still work"--then, if the company has a
> "QC"
>> > dept--all hell brakes loose--and "stuff" is put back in because, after
>> > all, if the "QC" dept engineers do not find anything to "fix", why do 
>> > we
>> > need that dept??--And then again, if the engineering dept can't come up
>> > with a "re-designed" widget, why do we need
>> > an engineering dept.?? --Also, we don't want to make it "last forever",
>> > 'cause, we need future sales---
>> >  ( I have heard RUMORS that the 3400 mech was much less expensive to
>> > produce as compared to the 3300. Also have heard that, other then the
>> > motors, it was made in Germany, and assembled here--don't know if true
> or
>> > not)
>> >  Ron Rich
>> >
>> > Wesley Dean <wesleydean at cox.net> wrote:
>> >
>> > I have taken the liberty to stray today.
>> > I have always believed that to better understand the workings of any
>> > device is to delve into the motives of the designer. Start by asking
>> > yourself WHY?
>> > For instance why did Wurlitzer abandon a perfectly reliable mechanism 
>> > to
>> > use one that was very hard for servicemen to understand. If you examine
>> > the last good mechanism on the 3300 series, you will see that the
>> > mechanism could not be placed any lower in the cabinet when the trend
> was
>> > to produce low profile cabinets.
>> > The obvious answer was to use a different mechanism. They opted to use 
>> > a
>> > design that the German Wurlitzer people had been using for some years.
> In
>> > their efforts to correct this disaster, they made small changes each
> year
>> > until they gave up and stopped trying.
>> > The German technology was too alien for the American servicemen. Other
>> > American juke manufacturers used designs that were easily adapted to 
>> > the
>> > new trend. That may be why all of them survived longer than Wurlitzer.
>> > One problem with most mechanical devices is inertia. Once anything is
>> > rotating and is required to stop precisely and not randomly requires
> some
>> > method of braking. With AC motors either a kick-out armature or some
> kind
>> > of stop is used. What is rarely used on AC devices are dynamic brakes,
>> > while most everybody uses on DC motors. I have often wondered about
> this.
>> > Now the automotive engineers are using this principle in hybrid 
>> > designs.
>> > The inertia of a vehicle of this type is directed back into the energy
>> > storage devices.
>> > I am trying to start some controversy among you people. Wes
>> >
>> > _______________________________________________
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>> >
>> >
>> >
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