Battery leak require board level repair
Hello, i recently get Panasonic RQ-SQ20 and try to restore it.
This is what i done so far: When i try to power it up, i don’t get a red light indicator so i try to disassemble the device. Then i desolder the board from the chassis and battery connector just fell off. I solder it back, try to power it up and still nothing. Next, i inspect the board and found it had battery leak corrosion around IC4. Then i try to scrub the board with flux and little bit of solder and some of the copper pad fell off. I tried to connect the broken pad with thin copper wire but still not working.
Here what i know so far: Main GND and VCC is getting around 1V.
What should i try next? I have a schematics but can’t really understand it properly.
PS: I’m doing this as a hobby and not fully know what i’m doing.
[Update 12/12/21]
Is this a good question?
3 Comments
@catzymbs cdan you post a clear straight on picture of the repair? The last image is hard to see because it's angled. A straight on picture will be better.
by oldturkey03
@oldturkey03 Thanks for a response, Here is the best picture i can take so far. i also draw trace of what it should look like. The red line is original trace with thin trace connected from HOLD. Then bottom trace which is SL. Then the blue circle is via that corroded so bad solder wont stick to it. and yellow line is my copper wire
by Catzy
it looks like there are some damage resistors on the left side of that IC6
by Logixal