Lama 4 in 1 chip falls off after hard landing!--with pictures - RC Groups
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Jul 15, 2006, 11:38 PM
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Lama 4 in 1 chip falls off after hard landing!--with pictures

so i had my first hard landing... not a crash because it landed on the skids and i did not brake anything on my lama. and all of the sudden everything was dead no lights no nothing! i inspected the battery and put it on the concrete outslide but while i was taking off the battery i heard something loose in the cockpit when i look it was the power chip that ussually blows in the 4 in 1. i will post pictures in a few minutes. it looks like it wasent even soldered on to the board you will see in the pictures what i am talking about.
Last edited by nuv22; Jul 16, 2006 at 12:08 AM. Reason: pictures
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Jul 16, 2006, 12:22 AM
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as you can see in the pictures the solder is not even damaged. i dont get why it fell off there is also no solder residue on the chip. wating for the soldering iron to heat up as i type!
Jul 16, 2006, 01:39 AM
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well after some STEADY HAND soldering i finnaly got all the leads of the chip solder on to the board. now comes the power up test. i will let you guys know how it goes wish me luck !lol
Jul 16, 2006, 02:08 AM
Wie Ein floh!
109Mechanik's Avatar
hopefully you made sure the IC was replaced the correct way round before testing....
Jul 16, 2006, 02:18 AM
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ohh yeah made sure that little circle was down at the bottom right. well have full controlls everything works except for the lower rotors (switched the motor leads on the board and both motors work fine) so it must be that i missed a solder point anyone know which lead controlls the bottom rotor?
Jul 16, 2006, 03:14 AM
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its alive ALIVE!!!!!!!!!!!!! both motors working i used a volt meter and found out which lead was not making contact so little more solder and we have power! i will do a fully asembled flight test tomorrow and give an update.
Jul 16, 2006, 04:21 AM
Registered User
well why wait till morning right ! flew around a bit and everything is A ok i might have to do a few changes to trim it out again but overall its working great ! here are some pictures.
Last edited by nuv22; Jul 16, 2006 at 04:23 AM. Reason: pics

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