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28 lines
1.5 KiB
28 lines
1.5 KiB
\documentclass[11pt]{article}
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%Gummi|065|=)
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\title{\textbf{Shorted Toshiba 002439-0A HDD}}
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\author{}
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\date{}
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\begin{document}
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\maketitle
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\section{Work Log}
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Chip is TI TLS2505 same pinout as TLS2205, I think... Hard to tell. It looks mostly right.
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That chip is non existent. TI doesn't provide data sheets for it... But TLS2205 is available online.
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All heat is being dissipated in that chip. 500mA when a 5V supply is connected. Something is wrong at the chip or around it. I need an example circuit. Searching on electronic component sites for similar TI motors... TLS2205 data sheet mentions voice coil, so I will sort by that. 21 results.
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The TLS data sheet also specifies that the chip is for HDDs especially. No easy way to sort for that. There is an applications sort, but no entry for HDDs for TI. Searched for hdd motor controller but came up with nothing that actually mentioned hdds. On TLS, Pin 1 is SCLK, Pin 2 is SDATA. They are both being held high, but no activity. So the Control chip BGA is not communicating.
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I need an example circuit. At this point, I'm either going to let the TLS chip burn out, or will move onto the next project. No need to stay here.
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I'd like to fix this board. I don't want to do a replacement of the PCB. Not interested in that, as it may entail BGA replacement or at least SPI flash copying.
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Did I just read that the sata data, next to the notch is pin 7, but on power next to the notch is pin 1? Really?
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Giving up on this now. Need layout/schematics. Need a new TI chip.
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\end{document}
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