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        Help! Lama 4 in 1 chip falls off after hard landing!--with pictures

#1 nuv22 Jul 15, 2006 10:38 PM

Lama 4 in 1 chip falls off after hard landing!--with pictures
 
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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. :censored:

#2 nuv22 Jul 15, 2006 11:22 PM

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!

#3 nuv22 Jul 16, 2006 12:39 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

#4 109Mechanik Jul 16, 2006 01:08 AM

hopefully you made sure the IC was replaced the correct way round before testing....

#5 nuv22 Jul 16, 2006 01:18 AM

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?

#6 nuv22 Jul 16, 2006 02:14 AM

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.

#7 nuv22 Jul 16, 2006 03:21 AM

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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.


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