(While successfully repairing tube amplifiers to transmissions, I know very little about circuit boards and associated terminology so please forgive the crude descriptions that follow =) )
Our 15 year old son received a novelty mini fridge that looks like a scaled down soda machine. After 2 or 3 weeks the thing stopped working completely. No noise of any kind although the power light by the on/off slider witch indicates electricity is getting to the unit. Also, there was a burned scent.
Upon opening the machine, I could see the 2 of the 3 points where the on/off slider switch is mounted on a small circuit board looked scorched.
Directly above the on/off solder points are 6 copper rectangles laid out in 2 horizontal rows of 3. The bottom middle rectangle the RED incoming wire is soldered; the bottom left rectangle has solder but is empty. At the very top is a row of 4 copper circles with the BLACK incoming wire soldered to the second from the left.
Where copper/orange indicates unsoldered points and red marks the burned points the board is laid out like this:
O O O O
= = =
= = =
= = =
o o oo
O O O O
QUESTIONS: (Any insight greatly appreciated)
1) Does the burned area need cleaning? If so, how?
2) On the 6 rectangles, why would the bottom left be soldered with connecting anything?
3) There is a mystery vertical line that starts between the 1st and 2nd rectangle and runs past the 2nd row. It's clearly there for a reason plus it looks like something melted. What was going on here and how to restore?
Also, I could not upload photos on this site so here are links to my flickr where u can see 2 pix of the circuit board-----
https://www.flickr.com/photos/25352244@N04/20170191464/in/dateposted-public/
https://www.flickr.com/photos/25352244@N04/20792802185/in/dateposted-public/
If anyone is on the paranoid side, you can go to flickr and search lvheretic under PEOPLE and see the pix.
Thanks for reading.
Our 15 year old son received a novelty mini fridge that looks like a scaled down soda machine. After 2 or 3 weeks the thing stopped working completely. No noise of any kind although the power light by the on/off slider witch indicates electricity is getting to the unit. Also, there was a burned scent.
Upon opening the machine, I could see the 2 of the 3 points where the on/off slider switch is mounted on a small circuit board looked scorched.
Directly above the on/off solder points are 6 copper rectangles laid out in 2 horizontal rows of 3. The bottom middle rectangle the RED incoming wire is soldered; the bottom left rectangle has solder but is empty. At the very top is a row of 4 copper circles with the BLACK incoming wire soldered to the second from the left.
Where copper/orange indicates unsoldered points and red marks the burned points the board is laid out like this:
O O O O
= = =
= = =
= = =
o o oo
O O O O
QUESTIONS: (Any insight greatly appreciated)
1) Does the burned area need cleaning? If so, how?
2) On the 6 rectangles, why would the bottom left be soldered with connecting anything?
3) There is a mystery vertical line that starts between the 1st and 2nd rectangle and runs past the 2nd row. It's clearly there for a reason plus it looks like something melted. What was going on here and how to restore?
Also, I could not upload photos on this site so here are links to my flickr where u can see 2 pix of the circuit board-----
https://www.flickr.com/photos/25352244@N04/20170191464/in/dateposted-public/
https://www.flickr.com/photos/25352244@N04/20792802185/in/dateposted-public/
If anyone is on the paranoid side, you can go to flickr and search lvheretic under PEOPLE and see the pix.
Thanks for reading.