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Corona DS-538MG Digital Servos Burn at Idle

PostPosted: Thu Aug 29, 2013 11:01 pm
by Pop Rivet
We have read the internet comments about the DS-538MGs burning up while sitting at idle; no input-signal changes, no end-of-travel jams. I must admit I was skeptical...until we experienced this same condition. So far, I've heard of five such failures, two of which occurred in my club. If the pix comes thru, you'll see a hole burned in the bottom cover, with significant melt-back of the plastic. In the hole, are the remains of the two amplifier ICs.

Re: Corona DS-538MG Digital Servos Burn at Idle

PostPosted: Thu Aug 29, 2013 11:16 pm
by cynr100
Appreciate the heads up, was looking at using for a large size tri-copter.

Re: Corona DS-538MG Digital Servos Burn at Idle

PostPosted: Thu Aug 29, 2013 11:49 pm
by Pop Rivet
Looks like the attachment didn't upload...oh rats!
It's quite unnerving to see your model just sitting on the stand with smoke pouring out. :shock:
BTW, the seller tells us Corona servos are not guaranteed...nice touch!... and inquiries to the factory have gone unanswered. Too bad Corona, you've lost a bunch of customers.

Re: Corona DS-538MG Digital Servos Burn at Idle

PostPosted: Fri Aug 30, 2013 8:07 am
by BillGriffiths100
Yes reviews seem to indicate the electronics have a serious problem, you could eviscerate the remaining servos and change the electronics with that from standard analogue servos rather than chucking them away to keep the metal gearing goodness! But otherwise they sound bad...