Hardware Can Anyone help identify these Lite components?

[NizNoz]

Messed up a repair and fried "A". Sneezed while handling "B" and it disappeared into the 6th dimension. "C" might not be lying flat after re-soldering. Can anyone help me identify them, or point me in the the right direction so I can do so myself? Also, which of these would likely to have polarity?

Thanks!

 

[rip-it-up]

+AJZ 917 is the ic

the bottom thing is a coil
the brown things are caps

nothing apart from the ic needs to go a certain way

 

[jkyoho]

C--> +AJZ should be MAX8969EWL50+T

 

[NizNoz]

C--> +AJZ should be MAX8969EWL50+T

Thanks! Now I need to just figure out how to read this..

Post automatically merged: Apr 15, 2024

Thanks for your answers! I appreciate it very much! Two follow up questions:
So when I powered up, the coil “A” started smoking. I had not placed a capacitor for “B”. Does this outcome make sense?
Are the last two capacitors (“D” & “E”) this connected in parallel?

Thanks again!

 

[jkyoho]

Thanks! Now I need to just figure out how to read this..

Post automatically merged: Apr 15, 2024

Thanks for your answers! I appreciate it very much! Two follow up questions:
So when I powered up, the coil “A” started smoking. I had not placed a capacitor for “B”. Does this outcome make sense?
Are the last two capacitors (“D” & “E”) this connected in parallel?

Thanks again!

Smoking likely due to your bad resolder of "C" chip.
yes, D and E capacitors are in parallel

 

[NizNoz]

Smoking likely due to your bad resolder of "C" chip.
yes, D and E capacitors are in parallel

Ok. That makes more sense to me. Thanks for patiently answering all my noob questions

Post automatically merged: Apr 15, 2024

Thanks! Now I need to just figure out how to read this..

Post automatically merged: Apr 15, 2024

Thanks for your answers! I appreciate it very much! Two follow up questions:
So when I powered up, the coil “A” started smoking. I had not placed a capacitor for “B”. Does this outcome make sense?
Are the last two capacitors (“D” & “E”) this connected in parallel?

Thanks again!

Ok. That makes more sense to me. Thanks for patiently answering all my noob questions

For the IC.. this is what I was left with after desoldering the old chip. ie two pads connected. The PDF pin configuration diagram shows that B1 & B2 (LX1 & LX2) are connected together. Am I reading that correctly?

 

[jkyoho]

The PDF pin configuration diagram shows that B1 & B2 (LX1 & LX2) are connected together. Am I reading that correctly?

yes

 

[rip-it-up]

i'm not very technical at reading datasheets, but it does say connect lx1 and 2 under the chip on that pdf, thou this could just be a option for certain applications.

easier just to buy a donor pcb, and transfer the componenets

 

[NizNoz]

Hi. I've finally returned to my project and am sourcing all the caps and inductor. I'm doing this by going to DigiKey and searcing for the capacitance and lenght/width for caps, but how do I find the appropriate coil? I've done a search for a 1microH inductor, but the item that comes up looks very different. Am I looking for a specific type of coil? My search included "surface mount", "fixed inductor", and a length of around 2mm.

 

[jkyoho]

For inductor specs, it's more important on the capability of constant current draw rather than the package size.

 

[NizNoz]

Having read and reread around "constant draw".. would something like this work? https://www.digikey.ca/en/products/detail/delta-electronics-cyntec/HTEH20161T-1R0MSR/9761414

 

[jkyoho]

4.3A is quite overkilled, the AJZ/(MAX8969EWL50+T) has max output of 1A.

 

[NizNoz]

4.3A is quite overkilled, the AJZ/(MAX8969EWL50+T) has max output of 1A.

Thanks! For a noob, that wasn't obvious to me. I chose a 1.2A rated one instead.

 

[NizNoz]

So after installing the components, the console booted!! Yay! (Thanks so much again @jkyoho). However.. digitizer does nothing. I’ve seated and unseated the ribbon, scrubbed the board with IPA. Nothing. I used a known working board and the digitizer works normally. Any ideas? Do the parts I replaced have to do with the digitizer? (Should I start a different thread?)