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| Mac IIci replacement diode |
Posted by: captjon320 on 2023-02-08 22:39:08
Recapping another IIci board and noticed that one of the small black diodes is missing from Q3. I assume it is the same diode that is on D3, D4, D5?
I need to purchase a replacement, but haven’t figured out what to purchase. Any help would be appreciated.
I have attached some pictures for your reference. |
Posted by: volvo242gt on 2023-02-09 02:54:23
Just checked the board that I picked up for my IIci. Q3 is either 1AMW or 1/4MW. D5 on my board is marked 5DW. Same with D4, etc. |
Posted by: mdeverhart on 2023-02-09 07:30:17
FWIW, a “Q” reference designator is usually a transistor, not a diode. Hopefully the part markings that volvo242gt provided will help. |
Posted by: captjon320 on 2023-02-09 10:27:18
Thanks for all your help and also the clarification between the “Q” and “D”, I will order one up and get this fixed.
I appreciate it. |
Posted by: captjon320 on 2023-02-17 07:09:26
Update one this. I actually found the tiny transistor in the bottom of the case. I soaked it in IPA, cleaned it up and soldered it back in place.
Mac IIci is up and running again.
Thank you community for all the information. |
Posted by: imactheknife on 2023-02-17 17:08:51
Wow, those things are tiny.. but same thing, lost one on the carpet, and low and behold i found it lol., unreal.. glad you found yours too |
Posted by: mdeverhart on 2023-02-17 19:06:01
I actually found the tiny transistor in the bottom of the case. I soaked it in IPA, cleaned it up and soldered it back in place. Glad you found it and got the IIci working! |
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