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| HDT722525DLAT80 Dead PCB http://forum.hddguru.com/viewtopic.php?f=11&t=22967 |
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| Author: | JAllmanTalbot [ May 16th, 2012, 8:19 ] |
| Post subject: | HDT722525DLAT80 Dead PCB |
Hi all, I have a Hitachi HDT722525DLAT80 (MLC: BA1466, P/N: 0A31611) which has a dead PCB. I also have a donor drive which works perfectly. Obviously as the PCB is dead (even when its off the drive I get no response from it at all), I can't read the NV-RAM from the chip. I've replaced the donor PCB on to the patient drive and checked the modules - all came back with errors. I then ran the NV-RAM adjustment tool to search for the SA. This found the service area and generated a new NV-RAM image, which I wrote to the drive. After writing it to the drive and doing a module check, I get OKs on all Copy 0 modules, but all Copy 1 modules and some factory copy modules are still erroring. Also the HDD ID is not being read, and I get an error reading the "open" modules on start up. Looking through the module check log, I can see messages such as 'Incompatible with NV-RAM' under the USAG heading. Any ideas? Is there a way of achieving this without de-soldering the NV-RAM from the patient board and re-soldering it on to the donor, or is that the only way this can be achieved? |
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| Author: | CK [ May 16th, 2012, 12:07 ] |
| Post subject: | Re: HDT722525DLAT80 Dead PCB |
Why aren't you prepared to move the NVRAM? It's by far the easiest way. |
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| Author: | Cleanroom [ May 16th, 2012, 14:46 ] |
| Post subject: | Re: HDT722525DLAT80 Dead PCB |
I agree, moving the NVRAM chip to the compatible board is the quickest and easiest. |
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| Author: | pcimage [ May 16th, 2012, 15:23 ] |
| Post subject: | Re: HDT722525DLAT80 Dead PCB |
Absolutely, much easier! |
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| Author: | fzabkar [ May 16th, 2012, 20:24 ] |
| Post subject: | Re: HDT722525DLAT80 Dead PCB |
JAllmanTalbot wrote: Is there a way of achieving this without de-soldering the NV-RAM from the patient board and re-soldering it on to the donor ... See hdd-firmware-update-t22218.html Otherwise, if you are prepared to measure some voltages, we could at least find out what is wrong with the original board. |
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