(Solved) Worked initially now doesn't after some movement in the tin.

Resolved mintyPi issues go here. Search this section first before creating a new support thread!
Post Reply
User avatar
BLAU
Posts: 21
Joined: Tue Aug 01, 2017 12:26 pm
Location: Bay Area, CA
Has thanked: 11 times
Been thanked: 10 times
Contact:

(Solved) Worked initially now doesn't after some movement in the tin.

Post by BLAU » Sun Sep 03, 2017 2:16 pm

Okay, I had my minityPi up and working before the battery monitor board and after installing the battery monitor board. Everything was complete except the final 3 out of 4 screws which I could not get to grab onto the bottom 3D printed part once everything was sandwiched in my tin. The top left screw hovering above the battery monitor board area was the only one that screwed in. I figured I would eventually get the last 3 screws to catch and wanted to show off my achievement on social media because I was super proud and never soldered anything until I got my hands on this project. I got a lot of good feedback but now it doesn't turn on and I have friends that want to play with it (loud forehead slap!).
20170901_195114.jpg
working
20170901_195114.jpg (2.78 MiB) Viewed 2796 times
20170901_201122.jpg
shutdown
20170901_201122.jpg (1.46 MiB) Viewed 2796 times
I had left it on while I was wiggling it around to get the final screws to catch and then the mintyPi just shutoff. :cry: I took it apart and noticed the white wire came off of the safe shutdown switch. Thought that was probably it, re-soldered it but to no avail it will still not turn on. Since I was pressing around on top of the sandwiched parts with only one screw in so I re-checked all of the solder connections in case a connection broke and they all seem good with continuity. I changed out the power wire to thicker 22 gauge from the power switch to the bat+ (but not sure if it matters which pin the wire goes to on pin switch).

Changed out the ground wire from the micro lipo after it melted accidentally touching it with the hot iron. Maybe someone with a keener eye than mine can spot what I did wrong or help with any suggestions.
20170903_121426.jpg
innards
20170903_121426.jpg (1.33 MiB) Viewed 2796 times
Newbie Questions:
Does it matter which power switch pin (left pin or right pin) from the power switch to the bat+?
Is the option to connect the power wire from the switch to the larger VCC pad area on the battery monitor board instead of the bat+? I also have the power wire from the soundcard to the bat+ is why I ask. I'm not sure where to troubleshoot for good connection for the bat+.

I appreciate any feedback this has been a fantastic learning experience so far backed by the most helpful online community I've ever been a part of!
Last edited by BLAU on Mon Sep 11, 2017 12:59 am, edited 1 time in total.
BLAU's wintergreen mintyPi
http://www.sudomod.com/forum/viewtopic.php?f=32&t=4009
In the works: peppermint blue mintyPi | GBZ | PI3 Gameboy

User avatar
BLAU
Posts: 21
Joined: Tue Aug 01, 2017 12:26 pm
Location: Bay Area, CA
Has thanked: 11 times
Been thanked: 10 times
Contact:

Re: Worked initially now doesn't after some movement in the tin.

Post by BLAU » Sun Sep 03, 2017 5:29 pm

more pics in different angles, puzzled! :?
SpoilerShow
20170903_160922.jpg
20170903_160922.jpg (3.24 MiB) Viewed 2787 times
SpoilerShow
20170903_160855.jpg
20170903_160855.jpg (3.36 MiB) Viewed 2787 times
SpoilerShow
20170903_160714.jpg
20170903_160714.jpg (3.52 MiB) Viewed 2787 times
I have parts for a 2nd mintyPi build to try if needed but that will probably be the last resort for now while I'm still checking connections. :|
BLAU's wintergreen mintyPi
http://www.sudomod.com/forum/viewtopic.php?f=32&t=4009
In the works: peppermint blue mintyPi | GBZ | PI3 Gameboy

Abunchahicks
Posts: 52
Joined: Thu Jul 20, 2017 4:08 pm
Has thanked: 3 times
Been thanked: 11 times

Re: Worked initially now doesn't after some movement in the tin.

Post by Abunchahicks » Sun Sep 03, 2017 5:33 pm

Check the large ground on the battery monitor for continuity. That joint requires a little more heat to get a solid connection.

User avatar
dryja123
Posts: 997
Joined: Tue May 09, 2017 5:34 pm
Location: Central NJ
Has thanked: 215 times
Been thanked: 520 times

Re: Worked initially now doesn't after some movement in the tin.

Post by dryja123 » Sun Sep 03, 2017 5:40 pm

First, decent work for your firsting solkdering project! With that said, it looks like you were shaking your iron or shaking the board when you were soldering, none of your joints look smooth.

Are you getting any voltage on the Pi when you have it powered on?

Also, looks like you're shorting your ground and possibly vcc on the battery monitor board:
20170903_194237.jpg
20170903_194237.jpg (845.29 KiB) Viewed 2782 times
Edit: 22 gauge wire is too thick. 26 gauge max for power parts in this build.

User avatar
BLAU
Posts: 21
Joined: Tue Aug 01, 2017 12:26 pm
Location: Bay Area, CA
Has thanked: 11 times
Been thanked: 10 times
Contact:

Re: Worked initially now doesn't after some movement in the tin.

Post by BLAU » Sun Sep 03, 2017 11:36 pm

It's alive!! I am so embarrassed at what it was.
SpoilerShow
20170903_220102.jpg
itsAlive
20170903_220102.jpg (3.8 MiB) Viewed 2771 times
Alright, alright, alright, okay so when I first installed the battery monitor board a few days ago I saw the battery had full power so it didn't even cross my mind that it would a dead battery. Plugged in the USB power for 10 minutes came back and I saw the screen was back-lit, the switch was left in the 'on' position, flipped the switch off and on and it darn thing booted up normally, Hallelujah!

Troubleshooting 101: Step 1. Check if unit is plugged in and power is set to on. :idea:

Jeez what a time suck for me and everyone reading this, my apologies. :oops:
dryja123 wrote:
Sun Sep 03, 2017 5:40 pm
it looks like you were shaking your iron or shaking the board when you were soldering, none of your joints look smooth.

Also, looks like you're shorting your ground and possibly vcc on the battery monitor board:
Good, useful tips, I will definitely work on those items to prevent a future mishap.
Maybe hold my breath when soldering to minimize the caffeine shakes lol, cuz you were right on about that.
Abunchahicks wrote:
Sun Sep 03, 2017 5:33 pm
Check the large ground on the battery monitor for continuity. That joint requires a little more heat to get a solid connection.

I remember reading about this in my research and will keep that in mind on my next build, thanks.

Looking ahead I can only get better from here so time to clean up a bit, gently try to get those screws in securely, and close up this Peppermint build. Excited to begin working on my Spearmint!
Cheers everyone,
:D
BLAU's wintergreen mintyPi
http://www.sudomod.com/forum/viewtopic.php?f=32&t=4009
In the works: peppermint blue mintyPi | GBZ | PI3 Gameboy


User avatar
BLAU
Posts: 21
Joined: Tue Aug 01, 2017 12:26 pm
Location: Bay Area, CA
Has thanked: 11 times
Been thanked: 10 times
Contact:

Re: Worked initially now doesn't after some movement in the tin.

Post by BLAU » Thu Sep 07, 2017 10:27 am

Lphillimore wrote:
Thu Sep 07, 2017 3:59 am
😂 we've all been there man 👍🏼
hehe :lol: , ya man, it's fun to explore the variety of posts in this forum. Mostly everyone I've seen here so far is humble, sets people in the right path, and checks their ego at the door, love it.
BLAU's wintergreen mintyPi
http://www.sudomod.com/forum/viewtopic.php?f=32&t=4009
In the works: peppermint blue mintyPi | GBZ | PI3 Gameboy

Post Reply

Who is online

Users browsing this forum: No registered users and 2 guests