Yes, it did work after reassembly. Fixing it so it would function was the initial reason for Taking It Apart. Batteries were left in it and corroded the terminals to the point where they were no longer conductive.
Taking It Apart, some rubbing alcohol, and a little solder fixed it back up to working condition.
Thanks for the guide! The fourth column of keys stopped working for me. This may have also been caused by corrosion, but upon opening my calculator, I didn’t see any issues. Needless to say cleaning the key contacts with contact cleaner didn’t solve anything. Any ideas as to why some of my keys just died?
Hi, I am going to disassemble to fix the broken battery contact but I wonder ,
Do I have to unscrew the 4 screws on 4 corners of the cal , or just the 1 screw near the memory battery ?
I saw a disassemble picture , is it true that the battery contacts arent connected to the circuit by solder points ( hard connect ) ? , since I can see all battery connects are attached to the bottom half , the circuit has only 2 bare square yellow contact . I dont see any solder there at all .
Did the calculator work after reassembly? I always wanted to put a back light for the screen in it. Is there any space left inside ?
Yes, it did work after reassembly. Fixing it so it would function was the initial reason for Taking It Apart. Batteries were left in it and corroded the terminals to the point where they were no longer conductive.
Taking It Apart, some rubbing alcohol, and a little solder fixed it back up to working condition.
Thanks for the guide! The fourth column of keys stopped working for me. This may have also been caused by corrosion, but upon opening my calculator, I didn’t see any issues. Needless to say cleaning the key contacts with contact cleaner didn’t solve anything. Any ideas as to why some of my keys just died?
Hi, I am going to disassemble to fix the broken battery contact but I wonder ,
Do I have to unscrew the 4 screws on 4 corners of the cal , or just the 1 screw near the memory battery ?
I saw a disassemble picture , is it true that the battery contacts arent connected to the circuit by solder points ( hard connect ) ? , since I can see all battery connects are attached to the bottom half , the circuit has only 2 bare square yellow contact . I dont see any solder there at all .
Thank you so so much if you could help me out ,