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| No TVS Diode on old hard drives (IDE) http://forum.hddguru.com/viewtopic.php?f=15&t=32115 |
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| Author: | duck22 [ October 16th, 2015, 6:11 ] |
| Post subject: | No TVS Diode on old hard drives (IDE) |
Hi I have a hard drive that does not power on. There is power coming in. I know I can replace the whole PCB but I was wondering is there anything similar to the TVS diode I can check. All I see on the PCB are lots of capacitors and a couple of transistors I have looked at a few old hard drives mainly IDE and cannot find any diodes on them. I hope some one can advise. Thanks in advance |
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| Author: | HaQue [ October 16th, 2015, 6:21 ] |
| Post subject: | Re: No TVS Diode on old hard drives (IDE) |
post a good quality picture of the PCB would be my advice to start with. |
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| Author: | chinopk [ October 16th, 2015, 6:54 ] |
| Post subject: | Re: No TVS Diode on old hard drives (IDE) |
yes, post picture so someone can point you to the right direction. |
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| Author: | duck22 [ October 16th, 2015, 7:16 ] | |||
| Post subject: | Re: No TVS Diode on old hard drives (IDE) | |||
I have attached photos that I have got through google images I have two drives that do not have tvs diodes deskstar 40gb and maxtor maxline ii 320 gb
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| Author: | duck22 [ October 16th, 2015, 7:48 ] |
| Post subject: | Re: No TVS Diode on old hard drives (IDE) |
Sorry forgot to attach photos of the Maxtor pcb. I will do that shortly Can anyone help with the Hitachi pcb please I can't see any diodes or fuses. Just transistors and capacitors. |
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| Author: | HaQue [ October 16th, 2015, 9:34 ] |
| Post subject: | Re: No TVS Diode on old hard drives (IDE) |
any reason you cant post photos of your actual boards? those pictures really don't come up big enough. for example, pictures in this post are good(for reference) http://forum.hddguru.com/viewtopic.php?f=1&t=32050 fuses or fusible links can be labelled on silkscreen of pcb with component numbers starting with L, resistors with a "0" on them and components labelled with an "F" are all things that may be worth looking for(test continuity). |
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| Author: | duck22 [ October 16th, 2015, 10:16 ] | |||
| Post subject: | Re: No TVS Diode on old hard drives (IDE) | |||
Thanks for the help I cannot find any fuses or fusible links I have uploaded some better images I do not have access to a camera at the moment can some one advise on what points to test or to determine which components are faulty please
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| Author: | duck22 [ October 16th, 2015, 10:50 ] | ||
| Post subject: | Re: No TVS Diode on old hard drives (IDE) | ||
Hi attached is image of the maxtor drive when plugged in has power but doesnt spin up but used to no diodes
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