Hey everyone, I have an MPC3000 that went down for seemingly no reason. A coworker moved this machine to replace a toner clutch and then the screen went black. I was asked to finish the repair and "just make it work".
I removed all of the boards from the back to check for burnt circuitry and blown fuses. I didn't find anything like that but I did find the ribbon cable extending from the IOB to the BiCU was not fully connected and the green spacer thing had fallen off due to the age of the adhesive I assume. I fixed this with tape and was sure to leave the ribbon pins exposed. When I reinstalled everything, the screen came back! SC995, control board mismatch. After searching on copytechnet, I found multiple threads regarding this. Found posts about checking fuse R59 (R is resistor...so I'm confused by the advice). I removed everything and found resistor R59 on 2 boards. Checked for continuity and funky board smells and visual burns. blah blah blah.
Reinstalled boards and now the screen is black again.
This is the board that was installed when the machine was functional. That is why I decided to create a new thread, as I don't believe that this is the same exact issue as what has been posted before. I checked SP5882 and that was on 1 and I set it to 0. Hopefully that didnt fudge anything up by changing that. I checked Cipher's page and copytechnet will not let me load posts past 3 weeks old on tapatalk or on desktop copytechnet. I read that he had a helpful (and free) solution, and I would love to check it out. I'm not sure what his solution involves, but if it allows for a swapped board, I may have access to such a thing.
What is this fuse people are talking about? Does anyone have any advice? I also heard about NVRAM data..... I'm not sure how to get the loadable version or even how to load it.
I worked on Ricoh exclusively for 5 years, but I'm afraid that my knowledge and memory is getting antiquated as I repair konica almost exclusively these days. I hope that there is simply something I'm forgetting.
I'd really love some help with this. I would be so grateful to hear your input.
I removed all of the boards from the back to check for burnt circuitry and blown fuses. I didn't find anything like that but I did find the ribbon cable extending from the IOB to the BiCU was not fully connected and the green spacer thing had fallen off due to the age of the adhesive I assume. I fixed this with tape and was sure to leave the ribbon pins exposed. When I reinstalled everything, the screen came back! SC995, control board mismatch. After searching on copytechnet, I found multiple threads regarding this. Found posts about checking fuse R59 (R is resistor...so I'm confused by the advice). I removed everything and found resistor R59 on 2 boards. Checked for continuity and funky board smells and visual burns. blah blah blah.
Reinstalled boards and now the screen is black again.
This is the board that was installed when the machine was functional. That is why I decided to create a new thread, as I don't believe that this is the same exact issue as what has been posted before. I checked SP5882 and that was on 1 and I set it to 0. Hopefully that didnt fudge anything up by changing that. I checked Cipher's page and copytechnet will not let me load posts past 3 weeks old on tapatalk or on desktop copytechnet. I read that he had a helpful (and free) solution, and I would love to check it out. I'm not sure what his solution involves, but if it allows for a swapped board, I may have access to such a thing.
What is this fuse people are talking about? Does anyone have any advice? I also heard about NVRAM data..... I'm not sure how to get the loadable version or even how to load it.
I worked on Ricoh exclusively for 5 years, but I'm afraid that my knowledge and memory is getting antiquated as I repair konica almost exclusively these days. I hope that there is simply something I'm forgetting.
I'd really love some help with this. I would be so grateful to hear your input.
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