hueyjones70 Posted June 30, 2023 Share Posted June 30, 2023 I have a reimaged XF551 PCB that isn't working. When I turn on the disk drive it does the normal move to track zero. When I turn on the computer, I hear a couple of clicks like it is going to boot, then I get a screen that shows info about the OS developer, (Dorndorf) an error message (16). That tells me that the board is making some communication with the computer. Where should I start in my efforts to correct the problem? Quote Link to comment Share on other sites More sharing options...
+kheller2 Posted June 30, 2023 Share Posted June 30, 2023 Is there a disk in the drive? Otherwise, I read, that it will go to that menu you see. http://blog.3b2.sk/igi/post/Hyper2b-XF-10-MANUAL.aspx Quote Link to comment Share on other sites More sharing options...
hueyjones70 Posted July 1, 2023 Author Share Posted July 1, 2023 Yes, there is a disk in the drive. There is obviously a failure to communicate. Quote Link to comment Share on other sites More sharing options...
+Stephen Posted July 1, 2023 Share Posted July 1, 2023 1 hour ago, hueyjones70 said: Yes, there is a disk in the drive. There is obviously a failure to communicate. 1 Quote Link to comment Share on other sites More sharing options...
+kheller2 Posted July 1, 2023 Share Posted July 1, 2023 So what drive mech are you using? Is it set to id0? Quote Link to comment Share on other sites More sharing options...
Peri Noid Posted July 1, 2023 Share Posted July 1, 2023 I'd check the head. They happen to die, especially in Mitsumi mechs. If your drive has Hyper-XF installed, it would behave like you wrote. Quote Link to comment Share on other sites More sharing options...
hueyjones70 Posted July 1, 2023 Author Share Posted July 1, 2023 I am using a Mitsumi mech that works perfectly with a different reimaged PCB. I know there is something amiss with the PCB. Quote Link to comment Share on other sites More sharing options...
Peri Noid Posted July 1, 2023 Share Posted July 1, 2023 Then I have no idea. If you have another working drive (or electronics at least) you could swap chips to determine what's wrong. It may be the matter of a buffer U4 or WD1772 controller. The main CPU seems to be fine since Hyper-XF is able to communicate. But what it is actually... I have no idea. Quote Link to comment Share on other sites More sharing options...
+kheller2 Posted July 1, 2023 Share Posted July 1, 2023 Share pics of the board and cables or it didn't happen. 😇 Quote Link to comment Share on other sites More sharing options...
hueyjones70 Posted July 3, 2023 Author Share Posted July 3, 2023 Pictures of the working board (it has the heat sink), the non-working board, and cables. I use the same ribbon cable with both boards. Quote Link to comment Share on other sites More sharing options...
+kheller2 Posted July 3, 2023 Share Posted July 3, 2023 Have you ruled out the chips? Swap the chips between the two boards. Quote Link to comment Share on other sites More sharing options...
hueyjones70 Posted July 3, 2023 Author Share Posted July 3, 2023 I did that earlier. I might do it again just in case. Quote Link to comment Share on other sites More sharing options...
BillC Posted July 4, 2023 Share Posted July 4, 2023 Are you monitoring the voltages, without a heatsink I would think the voltage regulators could be thermally throttling due to overheating. The 7812 has to reduce the input voltage at the current drawn by the mechanism, this can be quite a bit of power to dissipate without a heatsink. Quote Link to comment Share on other sites More sharing options...
kbr Posted July 4, 2023 Share Posted July 4, 2023 On 7/1/2023 at 1:50 AM, kheller2 said: Is there a disk in the drive? Otherwise, I read, that it will go to that menu you see. http://blog.3b2.sk/igi/post/Hyper2b-XF-10-MANUAL.aspx See Chapter 8, you have set the right operating mode? Quote Link to comment Share on other sites More sharing options...
macsonny Posted July 4, 2023 Share Posted July 4, 2023 I have the same board. I think it's from DropCheck. Checked the jumper for the 8040/8050 chip. I found if I had an 8040 installed I had to set it for an 8050 and vice versa. Odd I know but fixed my issues. Quote Link to comment Share on other sites More sharing options...
blacka013 Posted July 4, 2023 Share Posted July 4, 2023 I would also clean the solder side of the PCB and check the joints using a magnifying glass. Some are not very good. Quote Link to comment Share on other sites More sharing options...
hueyjones70 Posted July 15, 2023 Author Share Posted July 15, 2023 On 7/4/2023 at 8:08 AM, blacka013 said: I would also clean the solder side of the PCB and check the joints using a magnifying glass. Some are not very good. If you can tell that from a photo you have pretty good vision. Quote Link to comment Share on other sites More sharing options...
macsonny Posted July 15, 2023 Share Posted July 15, 2023 On 7/4/2023 at 10:08 PM, blacka013 said: I would also clean the solder side of the PCB and check the joints using a magnifying glass. Some are not very good. I agree. A look at the board and there are some solder joint that are just needing rework. If it was me, I'd rework the entire board or get someone who knows how to solder as there are some scary solder points on that board! Quote Link to comment Share on other sites More sharing options...
blacka013 Posted July 16, 2023 Share Posted July 16, 2023 14 hours ago, hueyjones70 said: If you can tell that from a photo you have pretty good vision. Just zoom in on the image of the board, it's very clear. 1 Quote Link to comment Share on other sites More sharing options...
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