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Title: Heated Up FlySky CT6B, Never Turn On Post by: sousube on October 29, 2014, 03:04:00 PM Hello RCIndia,
I'm a very beginner to RC Stuff. I was making a rig that hold my camera and perform a Pan and Tilt Motions and trigger my camera to take picture. I own a FlySky FS CT6B Tx and Rx set. I had completed my Pan and Till options. I was testing my RC Tx and Rx for a camera trigger action together connected to my PC. Everything was done bare open. I was using a 3s LiPo Battery. My FlySky suddenly got heated up in my lap ??? , I just removed the battery and looking around the Tx. There was no smell of burn, but a small black semiconductor part named 78M05 on it was very hot. Few mins later, i again connected the battery and tried to turn it on. Nothing was happening, LED was not burning... I'm afraid that, I would have fried my TX :banghead:. Plz Help What should I do now. :help: Please let me know you no. I would like to talk to you for better clarification. This is mine: 9543417492 Title: Re: Heated Up FlySky CT6B, Never Turn On Post by: akhilzid on October 29, 2014, 03:25:04 PM oh 78M05 is a regulator ic
you can check its out put, is normally 5 volts in tx. Title: Re: Heated Up FlySky CT6B, Never Turn On Post by: sooraj.palakkad on October 29, 2014, 04:53:33 PM Just replace the voltage regulator IC, To check whether this IC is the only culprit, you could also try giving a external power supply, for more help , please post a close up picture of the burned part, And I could mark the pins of that IC on the picture.
Or just search for datasheet of 78M05. Title: Re: Heated Up FlySky CT6B, Never Turn On Post by: sooraj.palakkad on October 29, 2014, 04:55:13 PM Here you go attached datasheet of 78M05 , Refer it for identifying the three pins of the IC. the one in Tx should be SMD , that is the D-PAK package in the datasheet.
Title: Re: Heated Up FlySky CT6B, Never Turn On Post by: akhilzid on October 29, 2014, 04:56:16 PM Normal LM7805 can be used for replacement.
Title: Re: Heated Up FlySky CT6B, Never Turn On Post by: sousube on October 31, 2014, 04:43:17 PM Thanks Guys... Hi sooraj, nothing is burnt, but it just got heated up and never turned On again. Here in Chennai I tried to get 78M05, i could only get the 7805. Can I use the 7805 VR in replacement to 78M05.
Hi akhilzid, is 7805 and LM7805 are same. When I ask, they say they just have the 7805 Voltage Regulator. Title: Re: Heated Up FlySky CT6B, Never Turn On Post by: sooraj.palakkad on October 31, 2014, 04:53:41 PM They all are same, You can use SMD component or also the regular package., But mind the pin configuration.
Youcan use any 7805 Title: Re: Post by: akhilzid on October 31, 2014, 05:37:56 PM 7805 outputs max 5v 1Amps
And 78M05 outputs max 5v 0.5ma In this case you can use both. Title: Re: Heated Up FlySky CT6B, Never Turn On Post by: sousube on November 01, 2014, 12:34:22 PM Thanks Both... :hatsoff: So should I change the Voltage Regulator Now. Will my FlySky come alive again... What do you guys think...
Title: Re: Heated Up FlySky CT6B, Never Turn On Post by: akhilzid on November 01, 2014, 12:53:48 PM before replacing,
just check resistance between Voltage Regulators output pins to make sure that was not shorted. then check voltage output of regulator in your tx , if that showing 5v and still no light from led, then something else going wrong, Title: Re: Heated Up FlySky CT6B, Never Turn On Post by: sousube on November 01, 2014, 02:17:33 PM How can I check that? Can you suggest me how. Do you mean to use a multimeter like device....
Title: Re: Post by: akhilzid on November 01, 2014, 02:22:56 PM Yes using multimeter. PM'ed my number, call me if you need any assistance.
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