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Thomann TSA 4-1300 |
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RoadRunnersDust 
Young Croc 
Joined: 03 December 2013 Location: United Kingdom Status: Offline Points: 561 |
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 Topic: Thomann TSA 4-1300Posted: 07 April 2022 at 10:15am |
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That’s a shame :/
In fairness to Thomann, it’s an amplifier that they rebadged so I doubt they would have access to the schematics themselves even if they wanted them. I can’t recall which Far East vendor they came from but someone (I think on here) identified them once, possibly the same outfit that build the PL3000 for them. Thomann *might* have had access to board-level spares but I would imagine their “repair” scheme consisted of sending back shipments of failed amplifiers for rework then using the reconditioned amplifiers or new units as warranty replacements. That seems to be a fairly common practice for Far East OEM’d equipment. (At least it’s better than recycling them into the landfill…)
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boots-hifi
Old Croc 
Joined: 15 August 2011 Status: Offline Points: 2463 |
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Posted: 07 April 2022 at 9:33am |
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Unfortunately it's now no more than a door stop. My Dad spent a lot of time trying to fix the amp, but without any detailed information from Thomanns 'service' department or schematics detailing components it became un viable.
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RoadRunnersDust
Young Croc
Joined: 03 December 2013 Location: United Kingdom Status: Offline Points: 561 |
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Posted: 11 March 2022 at 6:36pm |
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Did anything re: component fix information ever get explained?
I agree with Jon, that would be a really useful resource given the discontinued nature of the 4-1300
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JonB67
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Joined: 22 April 2016 Location: UK Status: Offline Points: 1376 |
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Posted: 20 February 2021 at 7:52am |
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Dont suppose your dad could enlighten us on what he found and what he replaced? Any pics?
Makes this a useful resource for people having the same problem as you.
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Earplug
Old Croc
Joined: 03 January 2012 Location: Europe Status: Offline Points: 7216 |
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Posted: 20 February 2021 at 7:49am |
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Yes - like the proposal that the manufacturers of white goods be made responsible for recycling their products when they fail. What is also needed is some sort of control over programmed obsolescence as well. One of my printers stopped working a while ago, because it was programmed to do so, not because of any fault. Absolutely ridiculous.    |
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Earplugs Are For Wimps!
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boots-hifi
Old Croc
Joined: 15 August 2011 Status: Offline Points: 2463 |
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Posted: 20 February 2021 at 12:13am |
100% agree with this. For a company that should hopefully be sustainable and support climate change throwing a product away regardless of cost for a component worth pennies available from RS is ethically wrong. Why shouldn't products be maintained, as in previous years? Its all about greed and profiteering. To put things into perspective, it's a 4 channel £450 amplifier that serves a purpose. The fact that I've had 3 new amplifiers since 2017 from thomann (1 new, 2 new replacements) under very light use to describe as best doesn't bode well for the product or design. The fact the company will be prepared to send a brand new replacement amplifier out including shipping rather than replace a component in the pence which probably has become a known fault is ridiculous. As mentioned thomann can not be worried about the already copied design being copied. Its just the drive for greed and wealth that over rules any degree of rationality.
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JonB67
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Joined: 22 April 2016 Location: UK Status: Offline Points: 1376 |
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Posted: 19 February 2021 at 7:26pm |
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Right to repair or guaranteed support for a fixed term or repairability ratings or some mix of the lot needs to come into force. The current "its tough, buy a new one" is not sustainable, responsible or necessary really. Hopefully it will drive new economics models which will have knock on effects for design.
Wishful thinking, but lets hope...
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aziz
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Joined: 12 January 2011 Location: ireland Status: Offline Points: 136 |
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Posted: 19 February 2021 at 5:20pm |
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Had a mackie profx8 in for repair recently,had it in before for a minor repair so I knew it’s a bit of a pain to work on but with nothing else happening,I said I’d would give it a shot.
One gain pot physically broken and two other dirty as well as a couple of diodes gone, Went to order new pots from loud technologies and found that they don’t stock them anymore which is shit as the mixer is still a current product. None of the standard component companies had a matching replacement so a long wait until Ali express came to the rescue Companies these days don’t make it easy
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APW
Young Croc
Joined: 13 November 2012 Location: Kent, UK Status: Offline Points: 1174 |
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Posted: 19 February 2021 at 1:46pm |
 LOL…. This exactly the conclusion I came to as to why they never released the schematics!! |
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studio45
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Joined: 16 October 2007 Location: United Kingdom Status: Offline Points: 3864 |
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Posted: 19 February 2021 at 1:35pm |
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Probably because if they released their schematics to non-NDA covered personnel, various patent lawyers would be VERY interested!
Your Dad is a top don by the way. Care to elaborate on what he found wrong and fixed? I bet it's a common fault, might even be the one that kills them all?
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Studio45 - Repairs & Building Commotion Soundsystem -Mobile PA
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Earplug
Old Croc
Joined: 03 January 2012 Location: Europe Status: Offline Points: 7216 |
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Posted: 19 February 2021 at 1:35pm |
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Here ya go - amp porn!!  The new cheapo crap can't compare to these!!   |
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Earplugs Are For Wimps!
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Earplug
Old Croc
Joined: 03 January 2012 Location: Europe Status: Offline Points: 7216 |
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Posted: 19 February 2021 at 1:24pm |
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Yes - the throwaway philosophy/culture is BS, I hate it too. Most of my amps are also old school - mainly Crest as well - 7001 and 8001. They just keep giving! |
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Earplugs Are For Wimps!
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JonB67 wrote: