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« on: August 23, 2020, 07:52:00 PM »
rahulbaruri
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fs-ct6b tx accidentally I reversed the battery after that it is not powering but using usb its red light is dim glowing and my laptop device manger is showing port is ok connected..


Need help Huh?
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« Reply #1 on: August 23, 2020, 08:51:52 PM »
Balakrishna Reddy
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Generally the input section has a voltage regulator and capacitor. When you have connected battery in reverse polarity the capacitor and regulator would blow up.

However the output section of the regulator is functioning normally which is why you can observe tx working fine when connected to PC.

You can open up your tx and replace the burnt components and most probably it will work.
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« Reply #2 on: August 23, 2020, 10:30:51 PM »
rahulbaruri
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You are right but which components I have to replace?
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« Reply #3 on: August 23, 2020, 11:03:54 PM »
sahilkit
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Few people in the group have some done similar thing and repaired the tx.

Links
1.http://www.rcindia.org/radios-and-receivers/fried-my-fs-i6s-radio-by-reverse-polarity-(help-me-out)/
2.http://www.rcindia.org/radios-and-receivers/rc-transmitter-repair-in-bangalore/
3.http://www.rcindia.org/radios-and-receivers/help-needed-in-repairing-transmitter/
4.https://openrcforums.com/forum/viewtopic.php?t=5885&start=30
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« Reply #4 on: August 23, 2020, 11:07:20 PM »
sahilkit
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can you post a picture of the radio opened with pcb, can know which part to look for !
TurborixCT6A and FS-CT6B circuit diagram (with Mods).jpg
Re: fs-ct6b tx accidentally I reversed the battery after that it is not powering
* TurborixCT6A and FS-CT6B circuit diagram (with Mods).jpg (103.43 KB, 800x570 - viewed 1058 times.)
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« Reply #5 on: August 23, 2020, 11:08:28 PM »
sahilkit
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looks like there are 2 nos of 7805 voltage regulator and one goes to RF module.
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« Reply #6 on: August 23, 2020, 11:09:40 PM »
rahulbaruri
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Thanks for replying.. But I didn't found.. That part of repair
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« Reply #7 on: August 23, 2020, 11:14:35 PM »
sahilkit
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post a picture i can try identify.
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« Reply #8 on: August 24, 2020, 12:17:53 AM »
rahulbaruri
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Unable to upload the pic.. Showing error
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« Reply #9 on: August 24, 2020, 01:42:44 AM »
asperised
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Post a picture to an image hosting site and share a link or upload it on Google drive or any other cloud storage you use and post the link.

That should work.
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« Reply #10 on: August 24, 2020, 08:48:39 AM »
rahulbaruri
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http://imgur.com/gallery/sKPqhHW
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« Reply #11 on: August 24, 2020, 11:20:45 AM »
sahilkit
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the ic in the black marking is U2 78L05 voltage regulator. Check to see if voltage is coming and its 5volts! Download the data sheet for pin marking from Google.
InkedsKPqhHW_LI.jpg
Re: fs-ct6b tx accidentally I reversed the battery after that it is not powering
* InkedsKPqhHW_LI.jpg (67.17 KB, 652x800 - viewed 390 times.)
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« Reply #12 on: August 24, 2020, 11:29:14 AM »
sahilkit
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This must be the main voltage regulator. Post a picture of the other side to confirm once.
InkedsKPqhHW_LI1.jpg
Re: fs-ct6b tx accidentally I reversed the battery after that it is not powering
* InkedsKPqhHW_LI1.jpg (69.61 KB, 800x657 - viewed 311 times.)
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« Reply #13 on: August 24, 2020, 05:22:07 PM »
rahulbaruri
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It's coming 3 mili volt
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« Reply #14 on: August 24, 2020, 05:29:24 PM »
rahulbaruri
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https://i.imgur.com/oCVL2pH.jpg
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« Reply #15 on: August 24, 2020, 06:31:01 PM »
rahulbaruri
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I have fixed it.. Thanks everyone for ur support s
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« Reply #16 on: August 24, 2020, 08:17:01 PM »
sahilkit
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Great, did you test all the functions including testing with RX ?
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« Reply #17 on: August 24, 2020, 11:58:33 PM »
rahulbaruri
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No.. But connected to laptop t6config it is working
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RC India  RC Equipments  Radios and Receivers  Topic: fs-ct6b tx accidentally I reversed the battery after that it is not powering
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