Schematics for the amp and the plasma tv please.
the tv has samsung boards inside and the service manual doesn't cover these black box items: samsung s42ax-yd01 inverter board or "sus"
is the guy who does the warranty repair, so the company has the obligation to send him/her the Service Manual free of charge.
Dream on!
You have to pay Sony hundreds of pounds a year subscription for service manuals provided on DVD and online - not even paper ones, and they are also encrypted.
A large Hi-Fi shop that was selling a lot of Sony gear had also Service Agency but no workshop and I was doing all repairs for this shop in a span of over 12 years. This has ended when I retired from repairs in 1999. Until that time all "warranty" items Service Manuals were supplied "as needed" free of charge in the form of multipage booklets with detailed fold-out diagrams, parts lists etc. All "out of warranty" manuals were supplied at the nominal charge of around AUD $20-30.
Sharp and National that I was the Service Agent for, were sending all Service Manuals free of charge and progressively throughout the year as new models were relised. It was also handy when years later someone brought to the workshop a piece of gear I did not see before.
Food for thought: could association with a strong Sony merchant result in your free subscription to On-line Service Manuals?
you do confine yourself now to replace "modules" and not the individual components - to earn your keep as I did for the components - for the living.. (very much a dying art now).
No, warranty repairs have to be made to component level, we're not allowed to replace modules except under special circumstances, (.. etc ..) quote]
I thought you did say in some other thread that with "plazma's" this is what you do..
But you are not required to return the faulty assemblies back - are you?
This opens the world to the "out of warranty" repairs... it may not be the case now - but it was the case before.. (the hard part is - you do not always have the diagrams for the sub-assemblies .. so you do need to make reasonable and fast assumptions from the info (in the service manual or your head).
This repair world - I am sure you know - is not easy..
I have a CRT here from the old days; it had all the indications of being faulty but it wasn't .. I did make the manufaturer to send me the new replacement but I was not required to send the other one back. Then I did find the real cause.. you need to compare the susspected "bad" with the known "good" sometimes. I did not smash it yet.. it just occupies my space.. but still do feel bad about it.. I have replaced a good pic tube under warranty with another new tube - then have discovered I was wrong (this is the right I am trying to defend); the same TV carrying this particular type of picture tube never came my way again.. pity.. I could recover at least some hours of finding the real problem after I did receive and fitted the new picture tube.
On another ocassion I did replace the whole motherboard of a TV - it did fix the problem.. I have used many parts from it on other repairs. (must be the brand and model wasn't the best because many of these faults were not "common"). Some saving here but no need to order new parts and again, no need to return the faulty module back "home".
Clue here is that the manufacturer can produce these moduls in thousands and send one to you - cheaper than it takes them to pay for the return postage for the u/s item, so they do not want it back and this is - a "part-ial" win(the double postage amounts to more than the the single + the manufacture price) and there is a considerable overhead in administration to process/check - only to trash it in the end.. they do assume that you will or have dispossed of it..
Also, those common faults are a "saver" to the revenue - aren't they.
A Sony tv with an irregular "bloob" (ink like blob splashed from a pen) somwhere on the screen that stays mostly stationary - took me no less than 10 hours. OK - 4 days (the truth is out).. not 10 hours - to figure out. It was just a bipolar cap.. 1uF/35V?. I did charge the custommer a penny for my effort (I know; he and no one else would pay me for these 4 days of labour); then I have received a string of "calls" in the next few years to the same problem on the same model with the identical symptom.. I just went out there with the soldering iron and the supply of bipolar caps and have got my money back and, never missed the bit on this one again.. If I was wrong, I'd take the tv back to the workshop.. I never was - on these.
"Common faults" - many manufacturers send them to you to cover for imperfections discovered "post" the manufacturing stage free of charge to Service Agents - (ofcourse) and - fearing another contradiction: trade people.. well, do have the list of "common faults" and sometime do share that "black book" with larger population of the trade. Truth is, here you have to pay for this knowledge; but it may save you hours of chasing the symptom on a particular model number and bring you (the serviceman) the result you want. Another words; if you have applied the common rules of: "..it is either the PSU, the output, or the input.. and the common sense" --> do follow the "common faults" book. The name of the game is the efficiency or you are in the wrong bussiness.
Alternatively, do apply your "science" to trace the fault from the scratch and possibly - go out of bussiness. It is after all - your time and "repairs" are pilling up on your shelf.
..as the hands of the clock, so are the days of our.. repair bussiness - full of pitfalls, "bad" and "good" ones.
Sounds like the slogan from "days of our lives" (haha). I have seen many of these episodes, watching it in the mirror of my workshop bench adjusting the convergence. Then I did lost the touch.. Tvs just simply got better, only H and V and Linearity remained and the "neck board" and ofcourse the HOT adjustments.. not that much anymore
xanadunow
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