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"Gareth Magennis" <soundserviceleeds@outlook.com>: May 13 08:33PM +0100 wrote in message news:724d6cf4-bedf-42a5-ba38-3ed1b57b3d89@googlegroups.com... > You do realise how rare it is for repairers to do SMD work ? > ...... Phil I don't think too rare. Much of my repair work is SMD components. Your not going to find too many through-hole components in professional video cameras these days... The same goes for high end touring gear as well. While there are "standard" components, much is SMD these days. Dan ********************************************************************************************** I am increasingly finding my work turning from linear PSU's and through hole components, to SMPS and SMD. This is mostly MI and Pro Audio. So, you adapt or die. I now have a hot air station and a microscope. I regularly replace SMD op-amps, multi pin flatpack USB and firewire IC's, and keep coming across new SMPS controllers. With these, you can just download the datasheet, which usually gives you an advisory circuit on it's use, which is very often pretty much what the manufacturer used for his design. Agreed, there is NO support from ANYTHING coming out of China. No parts, nothing. I struggled at first with all this, but actually quite like a challenge, and learning new things. And I have learnt a lot. I would suggest anyone needing to make the leap from old school to current school check out Louis Rossmann videos on Youtube. He mostly repairs Apple laptops, all SMD. You don't have to like him, or his methods, but watch his videos and you will learn some skills you can adapt and put into good practice in your own world. I have. Gareth. |
Trevor Wilson <trevor@SPAMBLOCKrageaudio.com.au>: May 14 05:52AM +1000 On 12/05/2017 10:52 AM, Phil Allison wrote: > ** Recording serial numbers is the usual precaution against that one. > Plus recent repair work is generally visible. **Yup. I had a guy who brought in an NAD amp for service. It was duly fixed. He brought it back 2 weeks later for an almost identical repair. I was surprised, so I checked my records and noted that the serial numbers failed to match. Arsehole. -- Trevor Wilson www.rageaudio.com.au |
"Ian Field" <gangprobing.alien1@virginmedia.com>: May 13 08:59PM +0100 "Trevor Wilson" <trevor@SPAMBLOCKrageaudio.com.au> wrote in message news:enp6gkF3g21U1@mid.individual.net... > fixed. He brought it back 2 weeks later for an almost identical repair. I > was surprised, so I checked my records and noted that the serial numbers > failed to match. Arsehole. One of the shops I narrowly avoided doing business with allegedly sent a printer under warranty back to Epson - when they took it apart, they found that serial numbers on individual parts were allocated to over a dozen different printers. |
Ralph Mowery <rmowery28146@earthlink.net>: May 13 04:29PM -0400 In article <ncJRA.45721$tm3.24604@fx37.am4>, soundserviceleeds@outlook.com says... > You don't have to like him, or his methods, but watch his videos and you > will learn some skills you can adapt and put into good practice in your own > world. I am retired and never worked with the SMD. I watched many of the Rossmann youtubes to learn about how to work with the SMD. If you don't mind his tlk, he gives some very good ideas and teaching about them. I bought one of the microscopes he recommended and an inexpensive hot air and soldering iron station for about $ 65. While I don't think it would hold up under much usage, it works well for hobby usage. If I was using the tools to make any money with, I would buy a better hot air station. There are several other good videos on youtube that show how to work with the smd. I think there is a woman named Jessica that does a lot of them. I really like working with the smd better than the through hole devices once I find the problem. Found the kapton tape to keep the hot air off parts that are close in works well. It just takes the correct tools to make it easy to work with. |
"Gareth Magennis" <soundserviceleeds@outlook.com>: May 13 09:42PM +0100 "Ralph Mowery" wrote in message news:MPG.338136ccf4b7806e9898fe@news.east.earthlink.net... In article <ncJRA.45721$tm3.24604@fx37.am4>, soundserviceleeds@outlook.com says... > will learn some skills you can adapt and put into good practice in your > own > world. I am retired and never worked with the SMD. I watched many of the Rossmann youtubes to learn about how to work with the SMD. If you don't mind his tlk, he gives some very good ideas and teaching about them. I bought one of the microscopes he recommended and an inexpensive hot air and soldering iron station for about $ 65. While I don't think it would hold up under much usage, it works well for hobby usage. If I was using the tools to make any money with, I would buy a better hot air station. There are several other good videos on youtube that show how to work with the smd. I think there is a woman named Jessica that does a lot of them. I really like working with the smd better than the through hole devices once I find the problem. Found the kapton tape to keep the hot air off parts that are close in works well. It just takes the correct tools to make it easy to work with. *********************************************************** Yep, once you learn what you need to do the job, then you can start to do the jobs, properly. Gareth. |
ohger1s@gmail.com: May 13 02:35PM -0700 On Friday, May 12, 2017 at 10:38:26 PM UTC-4, Phil Allison wrote: > > > help at all. > > True. No schematics, no .bin files, no help. > ** And crucially no spare ICs are sold, only whole PCBs. I don't know what you're working on, but there is *rarely* an IC that can't be bought on Aliexpress. I also buy LED chips for flat TVs a thousand at a shot for $20. Sometimes it takes a bit of time to identify these parts but they are available, and manufacturers no longer remove the OEM's number and replace it with a house number (fortunately). > What YOU claim YOU sometimes do is unheard of in this country. I can't speak for anything in Australia, but I assume China ships to Oz, no? > Cos it is completely uneconomic. Can't speak for your country, but the only way we make money over here is to replace at the smd component level. It is the *only* economic way to repair over here. |
jurb6006@gmail.com: May 13 03:05PM -0700 >"**Yup. I had a guy who brought in an NAD amp for service. It was duly fixed. He brought it back 2 weeks later for an almost identical repair. I was surprised, so I checked my records and noted that the serial numbers failed to match. Arsehole. " I know I said I almost never call the police, I lock and load, but in this case I would have called the law and had him charged with fraud. People think Trump U committed fraud but if that's the case all colleges do it, especially liberal arts, art history and all that. And making you take all kinds of irrelevant courses for shit you'll never use. Trumpp gioving the money back was just good public relations, they would have never made it stick because the "elements of the crime" simply were not there. There is enough to criticize him about without making shit up. Every college in this country should be sued. Look for a video called "The College Conspiracy". But when they pull that shit it is out and out fraud. Either that or I would just keep the unit and say I don't have it. "Look, this is the serial number of your unit, if you can find a unit with that serial number on it in this shop it is yours". In fact I would write a ticket for the unit with the "new" serial number and put someone's name on it I knew and tell them what is going on. And when the crook shows up tell him "Go ahead and call the law MF" |
"Gareth Magennis" <soundserviceleeds@outlook.com>: May 14 12:25AM +0100 I know I said I almost never call the police, I lock and load, but in this case I would have called the law and had him charged with fraud. Either that or I would just keep the unit and say I don't have it. "Look, this is the serial number of your unit, if you can find a unit with that serial number on it in this shop it is yours". In fact I would write a ticket for the unit with the "new" serial number and put someone's name on it I knew and tell them what is going on. **************************************************************************************************************** Well that would be fraud then. No wonder people hate you kind of people. Gareth. |
tabbypurr@gmail.com: May 13 04:52PM -0700 > But when they pull that shit it is out and out fraud. > Either that or I would just keep the unit and say I don't have it. "Look, this is the serial number of your unit, if you can find a unit with that serial number on it in this shop it is yours". In fact I would write a ticket for the unit with the "new" serial number and put someone's name on it I knew and tell them what is going on. > And when the crook shows up tell him "Go ahead and call the law MF" Then you lose the customer. Sometimes that's ok, sometimes not. I'd either return it and say it's not the unit repaired, they must have picked up the wrong one by mistake. Or repair it and not hand it over until the repair bill was paid. NT |
ohger1s@gmail.com: May 13 05:07PM -0700 On Saturday, May 13, 2017 at 7:25:42 PM UTC-4, Gareth Magennis wrote: > No wonder people hate you kind of people. > Gareth. I've been reading Jeff's posts for over 20 years on and off on this group, and although I've never met him, I can promise you that he was just spitballing. I've often fantasized about diabolical things I could do to deserving customers, but of course never did. Sometimes the fantasy has to be enough.. |
rickman <gnuarm@gmail.com>: May 13 08:54PM -0400 > I was surprised, so I checked my records and noted that the serial > numbers failed to match. Arsehole. " > I know I said I almost never call the police, I lock and load, but in this case I would have called the law and had him charged with fraud. You are such a bull artist. "Lock and load" That's a laugh if I ever heard one. -- Rick C |
Trevor Wilson <trevor@SPAMBLOCKrageaudio.com.au>: May 14 11:11AM +1000 > Then you lose the customer. Sometimes that's ok, sometimes not. I'd > either return it and say it's not the unit repaired, they must have > picked up the wrong one by mistake. **Which is precisely my approach. I knew and I am certain the customer knew what he was doing. I simply provided a way he could avoid being labelled a criminal. That way I could continue to do business with him. Or repair it and not hand it over > until the repair bill was paid. **That is a given, unless the client is a very good one. -- Trevor Wilson www.rageaudio.com.au |
Phil Allison <pallison49@gmail.com>: May 13 07:02PM -0700 ohg...@gmail.com wrote: ------------------------- > > ** And crucially no spare ICs are sold, only whole PCBs. > I don't know what you're working on, but there is *rarely* an IC > that can't be bought on Aliexpress. ** There are massive numbers of them that cannot. All the older stuff and anything programed for starters. I do not service TVs. > > What YOU claim YOU sometimes do is unheard of in this country. > I can't speak for anything in Australia, but I assume China ships to Oz, no? ** Cut out he smartarse crap. > > Cos it is completely uneconomic. > Can't speak for your country, but the only way we make money over > here is to replace at the smd component level. ** Which, like I say, nobody here does and darn few elsewhere. .... Phil |
Phil Allison <pallison49@gmail.com>: May 13 07:05PM -0700 jurb...@gmail.com wrote: ------------------------- > numbers failed to match. Arsehole. " > I know I said I almost never call the police, I lock and load, > but in this case I would have called the law and had him charged with fraud. ** Not even faintly possible. The customer likely made a mistake about which amp was recently serviced. .... Phil |
Clifford Heath <clifford.heath@gmail.com>: May 14 01:42PM +1000 > I can't speak for anything in Australia, but I assume China ships to Oz, no? >> Cos it is completely uneconomic. > Can't speak for your country, but the only way we make money over here is to replace at the smd component level. It is the *only* economic way to repair over here. I'm curious now - where is "over here"?. I'm guessing your average wage is under $5/hour. |
bitrex <bitrex@de.lete.earthlink.net>: May 14 09:14AM -0400 > numbers failed to match. Arsehole. " > I know I said I almost never call the police, I lock and load, but in this case I would have called the law and had him charged with fraud. > People think Trump U committed fraud but if that's the case all colleges do it, especially liberal arts, art history and all that. And making you take all kinds of irrelevant courses for shit you'll never use. Trumpp gioving the money back was just good public relations, they would have never made it stick because the "elements of the crime" simply were not there. There is enough to criticize him about without making shit up. Every college in this country should be sued. Look for a video called "The College Conspiracy". What's wrong with art history? Do you not like art? You have a weird notion of what colleges, even liberal arts colleges, are like. |
ohger1s@gmail.com: May 14 07:51AM -0700 On Saturday, May 13, 2017 at 11:42:42 PM UTC-4, Clifford Heath wrote: > > Can't speak for your country, but the only way we make money over here is to replace at the smd component level. It is the *only* economic way to repair over here. > I'm curious now - where is "over here"?. > I'm guessing your average wage is under $5/hour. "Over here" is the United States. I work in Waterbury, Connecticut and live in the 'burbs. It's on the East Coast about 90 minutes from New York City. I don't know why you'd guess a wage of $5 per hour, but let me pose this to you: A TV (say) comes in and it has no HDMI functions. The main board cost me $130 dollars from the salvage companies, and $220 new (if available). In stock, I have the HDMI port processor IC that's a 72 pin QFN. We see a lot of these fail in the summer because the HDMI is hypersensitive to storm damage. https://www.semiconductorstore.com/pdf/newsite/SiliconImage/SiI9287_DB.pdf The IC cost me $2.50 delivered and takes 20 minutes to change - 15 of that is the board sitting on the preheater (during which time I can have a snack, listen to sports radio, or watch porn on my computer...). Tell me, do I make more per hour replacing that IC or do I make more spending $130 to $225 for the board? One universal truth in any business is *Time Is Money*. It's just as tangible as any other cost a business will incur. I can have said TV on and off the bench in one hour complete. Buying a board cuts my profit by a large margin and the TV needs to sit a week while I wait for it (and hope the board is good or carries the correct software). It's been said that necessity is the mother of invention, and I can promise you that if you needed to adapt to doing surface mount work to make money, you'd do it. Yes, there are some people who haven't the hands for this type of work but I'd say the majority of people can learn these techniques if suitably motivated. |
Clifford Heath <clifford.heath@gmail.com>: May 14 01:40PM +1000 On 14/05/17 00:50, rickman wrote: >> by burning oily resins that don't get extracted in a cold brew. > What does that have to do with anything? Those components are only a > problem when overheated. That's just not true. Hot brewing is a balance between not extracting enough of the fine flavours, and extracting too many unpleasant bitter ones. Cold brewing simply doesn't extract the bitter flavours that come from heavier resins, etc. Obviously there will be people who like bitter flavours anyhow; but to most people they taste bad even before they've been burnt. |
rickman <gnuarm@gmail.com>: May 13 11:48PM -0400 On 5/13/2017 11:40 PM, Clifford Heath wrote: > come from heavier resins, etc. Obviously there will be people who > like bitter flavours anyhow; but to most people they taste bad even > before they've been burnt. That must be why so few people enjoy hot brewed coffee. -- Rick C |
Clifford Heath <clifford.heath@gmail.com>: May 14 02:07PM +1000 On 14/05/17 13:48, rickman wrote: >> like bitter flavours anyhow; but to most people they taste bad even >> before they've been burnt. > That must be why so few people enjoy hot brewed coffee. You never pass up the opportunity to show how thick you are, do you? |
rickman <gnuarm@gmail.com>: May 14 12:40AM -0400 On 5/14/2017 12:07 AM, Clifford Heath wrote: >>> before they've been burnt. >> That must be why so few people enjoy hot brewed coffee. > You never pass up the opportunity to show how thick you are, do you? It's not hard to understand. Different people have different tastes. As I have already said, not all people prefer cold brewed coffee. It's that simple. Taste is a matter of... taste. It's a bit silly to say, "to most people they taste bad even before they've been burnt." You said that yourself. Obviously there are plenty of people who like hot brewed coffee when done properly. So what are you going on about? -- Rick C |
Clifford Heath <clifford.heath@gmail.com>: May 14 04:08PM +1000 On 14/05/17 14:40, rickman wrote: > "to most people they taste bad even before they've been burnt." You said > that yourself. Obviously there are plenty of people who like hot brewed > coffee when done properly. So what are you going on about? Baristas know that if the extraction is too hot or too long, the taste is spoiled by the heavier oils and resins. Too short or too cool and you don't get all the nice flavours. Popular taste is around some middle point, with outliers on both sides, of course. But it's a balance that must be struck. Cold brew avoids the problem by getting almost all the nice flavours (though very slowly - hours instead of seconds) without mobilising the heavier elements. You can re-heat it without the worsening the effect of those, because they basically aren't present. The only reason it's not much more common is because it's not quick enough. Did that make it easier for you to follow? Do your own reading on the subject, you'll find that a lot of informed opinion agrees. Since leaving Melbourne (one of the premier coffee-drinking cities worldwide) I've gone "full Melbourne" in my own coffee tastes, grinding my own beans right before every brew. I'm about to find some coffee plants to grow my own - they fruit well in Sydney. Pity that most of Sydney doesn't know how to make a good coffee! |
Clifford Heath <clifford.heath@gmail.com>: May 14 01:51PM +1000 On 13/05/17 19:18, Phil Allison wrote: > Anecdote: > I bought one of the very first CD players available for purchase in Australia ( Sony CDP101 ) > in May of 1983. I still have it and it works perfectly. Nice one! On the now rare occasion that I play a CD, I still use my Sony D-22 CD Diskman that I bought 2nd hand in the late 80's. Still works fine. Just don't try to play a data CD - it'll spit out high volume white noise! It's the only home CD player I'll ever own. |
philo <philo@privacy.net>: May 13 07:29PM -0500 On 05/13/2017 12:07 AM, Trevor Wilson wrote: > does not pull out like most. It kinda pivots at the rear and 'clicks' > into place at the front. You just need to pull down on the stylus and it > will come out easily. Interesting to see this. though my turntable is a JVC, after 20 years in storage I just put it back in service yesterday. |
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