lepai ta 2020 fault |
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AlfieDring
Young Croc Joined: 04 September 2006 Location: Bath, UK Status: Offline Points: 842 |
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Posted: 30 June 2015 at 11:58pm |
My new ta2020 has developed a fault. LED comes on when you flip the switch but the speaker protection relays don't activate, no sound obviously. Opened it up and there is a line of four capacitors (*Ahem* Inductors - see edit 2) between the chip and the relays that are looking swollen. Has anyone had this fault? I use the amp in my camper van so it sees upto 14v at the input. According to the spec sheet that's fine but reality may differ!
*Edit* Sorry was having some trouble there attempting to insert an image on phone browser! *Edit 2* Hmmm so on closer inspection these swollen black parts are marked as L2, L3, L4 and L5. Some time on google confirms they are inductors and are meant to look like that. Well don't i feel silly! Back to square 1....... Edited by AlfieDring - 02 August 2015 at 11:42am |
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laricot
New Member Joined: 19 March 2015 Location: france Status: Offline Points: 8 |
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Hello AlfieDring
Can you post a close view of this four capacitor to see if they realy are swollen, and do you have a multimeter to test them? For how long time do you have this amplifier?A good capacitor shouldn't swollen before the amp is older than 20 years old Have a nice day |
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AlfieDring
Young Croc Joined: 04 September 2006 Location: Bath, UK Status: Offline Points: 842 |
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Hey Laricot, Have updated the post with an image, hopefully you can see it?
I do also have a multimeter so will try and test them today / see whats going on. I've had this amp for about two weeks before it failed! From new but it's going to be a pain to return so would rather fix or indeed upgrade. Cheers! Alf |
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studio45
Old Croc Joined: 16 October 2007 Location: United Kingdom Status: Offline Points: 3863 |
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Is there DC at the output of the chip? If so, the chip is toasted. If not, there's a problem with the relay circuit.
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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: 7199 |
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+1
Relay not engaging usually indicates DC on the output. |
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Earplugs Are For Wimps!
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