Need Help Troubleshooting My Light ASAP

[PSUAGRO.]

citi's are pretty tough, using large pin sinks @1400mah, i would question your thermal compound? ambient temps?

 

[Krytend]

Thermal paste looked pretty even to me also my temps haven't been crazy 62-79. Not a big deal it's an 8$ chip. I just need to figure out how to rewire my 4 cobs.

 

[Airwalker16]

I'm confused on the wiring now i have an open circuit

Dude. It's the same as before, just one cob less. Positive Wire from driver goes to 1st cobs pos, then connect Neg from 1st cob to positive on 2ND Cob. 2ND cobs neg to 3rd cobs Positive. 3rd cobs neg to 4th cobs pos and lastly , 4th cobs neg back to the drivers Neg wire.

 

[CannaBruh]

wow that's crazy, you might be able to take a scalpal near where that terminal was and scrape and peel back some of that white shit exposing the electrode, scrape that thing raw tin it up and resolder your wire easy money

Something clearly put way too much stress on that connection, button down the whole thing again make sure that can't happen.

 

[Krytend]

Dude. It's the same as before, just one cob less. Positive Wire from driver goes to 1st cobs pos, then connect Neg from 1st cob to positive on 2ND Cob. 2ND cobs neg to 3rd cobs Positive. 3rd cobs neg to 4th cobs pos and lastly , 4th cobs neg back to the drivers Neg wire.

I understand how to wire in series. I gota get a new solider iron mine craped out and i gota take off all the tape and resoilder and rewire everything. I thought maybe i could so something to rig it for tonight.

 

[Krytend]

wow that's crazy, you might be able to take a scalpal near where that terminal was and scrape and peel back some of that white shit exposing the electrode, scrape that thing raw tin it up and resolder your wire easy money

Something clearly put way too much stress on that connection, button down the whole thing again make sure that can't happen.

Yeah I'll try it out. Either way it's not gettibg fixed tonight.

 

[CobKits]

looks like you had some stress and strain on that wire or may have stressed it when soldering

I understand how to wire in series. I gota get a new solider iron mine craped out and i gota take off all the tape and resoilder and rewire everything. I thought maybe i could so something to rig it for tonight.

easy peasy. cut the wire on the other side of the cob close to the cob, strip it, and wire nut it to the wire you have that broke off the chip. no soldering required

 

[Krytend]

looks like you had some stress and strain on that wire or may have stressed it when soldering


easy peasy. cut the wire on the other side of the cob close to the cob, strip it, and wire nut it to the wire you have that broke off the chip. no soldering required

I sniped the other wire to remove the chip so it's 2 wires diconnected

 

[Airwalker16]

I understand how to wire in series. I gota get a new solider iron mine craped out and i gota take off all the tape and resoilder and rewire everything. I thought maybe i could so something to rig it for tonight.

You can. Twist the 4th cob neg wire to a length of wire long enough to reach the driver neg. Use electrical tape for now.

 

[Krytend]

You can. Twist the 4th cob neg wire to a length of wire long enough to reach the driver neg. Use electrical tape for now.

What about the postive wire? I'm sorry to keep asking dumb questions . I'm decent at growing not with electrical.

 

[Airwalker16]

What about the postive wire? I'm sorry to keep asking dumb questions . I'm decent at growing not with electrical.

Positive wire that connects from the broken COB, to the 4th COBs NEG solder pad, is now your last connection that returns to the drivers NEG wire.

 

[Airwalker16]

Driver +, cob +, cob -, cob +, cob -, cob +, cob -, cob+, cob -, driver - wire.

 

[CobKits]

I sniped the other wire to remove the chip so it's 2 wires diconnected

yup. connect these.

 

[Airwalker16]

I understand how to wire in series.

I feel this might be a Biiiiiiit of a stretch.

Lol JK man... Sorta.

 

[Airwalker16]

yup. connect these.

Exactly. I guess I was just trying to explain it in more of a whole idea type of thing.

 

[Krytend]

Thanks i did what you guy's said and double checked the polarity. Still couldn't get it to work I'm thinking the driver is bad and the 1212 chip some how broke also.

 

[Airwalker16]

Thanks i did what you guy's said and double checked the polarity. Still couldn't get it to work I'm thinking the driver is bad and the 1212 chip some how broke also.

I have a feeling you wired it wrong...

 

[Airwalker16]

B

Thanks i did what you guy's said and double checked the polarity. Still couldn't get it to work I'm thinking the driver is bad and the 1212 chip some how broke also.

By the way, I'm thinking your Kapton tape is the culprit to your pads destruction. You should invest in holders or just use the holes to screw them down. That pressure is what helps the heat sink in to the aluminum.

 

[Krytend]

B

By the way, I'm thinking your Kapton tape is the culprit to your pads destruction. You should invest in holders or just use the holes to screw them down. That pressure is what helps the heat sink in to the aluminum.

What does kapton tape have to do with the whole terminal busting off ? Thermal paste provides a vacuum seal all the tape does is keep the seal.

 

[Airwalker16]

What does kapton tape have to do with the whole terminal busting off ? Thermal paste provides a vacuum seal all the tape does is keep the seal.

Heat.
Either that or you bumped that individual wire hard enough somehow, that it completely ripped it off.

The tape doesn't PRESS DOWN the cob like holders do. Pressure is applied across the whole of the cob using them. Screws would do at least a better job with 2 contact points.