NekoNova
Member
Okay,
As mention in my previous thread, I'm going to keep a worklog on my progress in order to properly restore this gameboy.
Introduction
Originally the gameboy comes from Ebay. It was being sold as "defect" with the message that the led turns on when batteries are inserted, but no sound or display appears. My initial thought was that some of the capacitors might have leaked or dried.
After opening the handheld and looking inside, it was a mix of leaked capacitors and leaked batteries, with goo being everywhere.
After an initial cleaning, this is what the boards look like:
The Main Board
What I call the "main board", is the board that holds the CPU and cardridge connector. This board seems to have a major malfunction, as it doesnt seem to be doing anything at all.
Here are my findings about this board:
I removed all components from the board in order to test them individually.
Here is what the boards look like right now:
On this last board:
Here's the removed individual components:
Now I'm a bit confused about this silver component D419J1.
Can anyone tell me what this actually is, and how I could test if it's in working condition?
All other components have been checked and are confirmed to be working.
Question/feedback appreciated
Also if you think you can help out on this, by all means let me know.
As mention in my previous thread, I'm going to keep a worklog on my progress in order to properly restore this gameboy.
Introduction
Originally the gameboy comes from Ebay. It was being sold as "defect" with the message that the led turns on when batteries are inserted, but no sound or display appears. My initial thought was that some of the capacitors might have leaked or dried.
After opening the handheld and looking inside, it was a mix of leaked capacitors and leaked batteries, with goo being everywhere.
After an initial cleaning, this is what the boards look like:
The Main Board
What I call the "main board", is the board that holds the CPU and cardridge connector. This board seems to have a major malfunction, as it doesnt seem to be doing anything at all.
Here are my findings about this board:
- When attached to a working display, it doesnt do anything
- The DC converter is working, but behaves odd. When reversing the connection on the board (dangerous I know), the sound actually starts to work, but not the display.
- All traces on the board seem to be in working condition. Performed continuity checks
- Non of the ICs look damaged
- All the electrolyt capacitors have been replaced with new ones.
- On the board seem to be red ceramic capacitors. No idea if it makes sense to replace them?
I removed all components from the board in order to test them individually.
Here is what the boards look like right now:
On this last board:
- Removed a bit of the copper paper?? because it was rotting away. Replaced by a wire.
- Removed all the goo gunk from the board this time (squeeky clean )
- Some traces are exposed. This is due the glassfiber brush since they were covered in gunk. Continutiy is fine on them.
- Redid the big blobs of solder. Thinned them down a bit. Looks messier then it is.
Here's the removed individual components:
Now I'm a bit confused about this silver component D419J1.
Can anyone tell me what this actually is, and how I could test if it's in working condition?
All other components have been checked and are confirmed to be working.
Question/feedback appreciated
Also if you think you can help out on this, by all means let me know.
