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Bad amp tech's !!!!

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  • #46
    That is a good question. Mostly it is a losing situation but making the customer "whole" is part of developing a loyal customer base and sort of correcting the image of repair techs and shops being worse than shade-tree mechanics and rip off artists. I usually charge based on a weighted scale of how much the item should have cost to repair and the ability to pay and split the difference. But then again, my current small repair shop is part hobby and my main income is from another business. In my old, very large shop, we pretty much charged $65/hour with a 2 hour max and being the owner, ate it on anything over that. Those real monster rebuilds of hack jobs sometimes cost me hundreds of dollars in shop overhead for the 2 hour repair price.
    I know that does not make sense for some but I just feel somewhat responsible for the work of other shops, in regard to rescuing otherwise good units. That is one reason I am pretty hard on "techs" who are trying to do commercial work without a clue or without a means to properly diagnose or repair a unit. If someone who owns the unit is asking for help, I'll spend the time to assist but when a tech is using the forum to avoid having to learn what the hell they are doing, and risking the reputation of all techs, and ripping off the customer, I have little patience.
    Here, the problem of hack techs or "masters" as they are called, is doubling bad since there is no repair support industry for pro audio, no cooperating distributors who will sell parts and no western manufacturers who will send parts to Russia. That means every unit is likely to be a hatchet job, previously done by someone with a big soldering copper on their kitchen table which burned off all the traces of the pc boards or made elaborate mods just to get around not having access to the correct OEM parts. Even back in the States where there is a severe lack of science or technical training for non-scientists or engineers among those growing up after the 70s, it is rare to see the kludges I see here everyday.

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    • #47
      I spent a long time in field service. We serviced coin operated stuff, so juke boxes, pool tables, pinballs, arcade videos, vending. You get a service call friday evening at some bar, believe me they do not want to hear "It needs a part, I'll come back with it monday. And inevitably the place is 40 miles away. A dead juke box in a bar makes it silent, and cuts into beer sales dramatically. The pool table runs non-stop all weekend, BIGGEST money in the bar, amusement wise. We no longer have smoking in bars, but when we did, a jammed cigarette machine was not tolerated.

      So talk about kludges, we did whatever it took to get something running. If I had to stick a pinball relay into a cigarette machine, then so be it. Ever see a jack on an amp with extra contact blades, and a litle plastic spacer makes the extra contacts move with the tip contact blade? We call the plastic piece a lifter. I recall a lifter fell out of a relay on a pinball once, and the tech who went on the call didn;t have one to repair the relay, so he stuck a cigarette filter on the ends of the relay blades, and it worked for the rest of the weekend until we could get back to it.

      On the other hand I saw a guy wire a 5 and a 10 amp fuse in parallel because he ran out of 15A fuses.

      A favorite service call was "Pool table jammed, can't put coins in. Hurry." I got there expecting to dismantle the coin acceptor, but I found the cash box inside so full and overflowing with coins there was no room for any more. A quick dump into a coin bag and we were back in business.


      Fortunately, in shop service we don't need to be quite that creative. We shouldn't be.


      And Stan is right, we do a lot of "free" work - time not paid for. Customer relations is very important.
      Education is what you're left with after you have forgotten what you have learned.

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      • #48
        The LM391N in Polytone Teeny Brute is a bugger to find, right?
        But don't worry, you can always substitute it with discretes - like this one:
        Attached Files

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        • #49
          Originally posted by Enzo View Post
          A favorite service call was "Pool table jammed, can't put coins in. Hurry." I got there expecting to dismantle the coin acceptor, but I found the cash box inside so full and overflowing with coins there was no room for any more. A quick dump into a coin bag and we were back in business.
          My favorite was driving to Detroit to undo a coin jam caused by a foreign coin stuck to the mech magnet backing up quarters all the way up the chute. I don't miss be'n a field tech. Not at all...
          The farmer takes a wife, the barber takes a pole....

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          • #50
            Originally posted by Gtr_tech View Post
            My favorite was driving to Detroit to undo a coin jam caused by a foreign coin stuck to the mech magnet backing up quarters all the way up the chute. I don't miss be'n a field tech. Not at all...
            My last job was a field tech for the state turnpike. I used to have to clear jammed coin payment machines almost daily, often because of creative things other than coins being tossed in, sometimes in the middle of the night, in winter, uphill. BUT, the cool thing was I could make the machine kick out the hopper and spit out the offending bits, if I was lucky, by remote control from my laptop anywhere in the world. I once did it for a co-worker in Maine while I was in Hawaii. That was pretty cool.
            It's weird, because it WAS working fine.....

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            • #51
              Originally posted by Ronsonic View Post
              There is just so much that can go wrong. And the problem with guys who don't know is they don't even know what it is they don't know. Go google up "Dunning Krueger Syndrome" you'll see.
              Real knowledge is to know the extent of one's ignorance. Confucius 479 BC

              DKS may also explain why you see some very "creative" driving "habits" on the highway.

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