www.deadharddrive.com

In case anyone needs the PCB:

ST3500630AS
P/N: 9BJ146-305
Firmware: 3.AAE
Date Code: 07484 Site code: TK (product of Tailand)

The PCB works but the drive is toast.

Sooo. Is this what a preamp failure sounds like? The linked sound file is an MP3 and has 10 clicks then stops but the drive continues to SPIN. If I unplug/replug it does aga for 10 and stop, etc...

Here is a link to the sound this drive is making:
http://picosong.com/3k35/
Can you tell if this is a fried HDA coil or the PCB ????

Get an Ohm meter and check the forward/reverse readings n the BIG BUX diode right below the CR200 label. If it reads zero Ohm in both directions its fried (even if it does not look fried). If it rea ...

Client with post hurricane Sandy/power failure. firmware CC35 date mfg 09446. PCB is 100536501 REV A. This units PCB had a shorted 12V TVS diode and two zero Ohm resistors from the molex to the TVS. ...

I am attempting a PCB swap but the K4FYA board when swapped with a L6FYA did not work (they look identical and all chips match). So based on other information I found it seems that the 6Y120P0 032251 ...

When looking for a match of the Diamond Plus 9 does the LBA have to match exactly? this is a 6Y120P0 unit...

I presume you do not want the station is was designed to work with?
http://www.amazon.com/Hakko-Soldering-Station-FX-888/dp/B004M3U0VU
It is only $83USD not bad for tem controlled. What exactly are ...

OK so the drive spinds and clicks. The preamp is presumably GOOD? Is my problem then perhaps the firmware is just not exactly for the drive I have vs. the PCB I bought ?

Thanks once again for a lead. In my original post I said, the original pcb was a K4FYA. I replaced with PCB L6FYA. Would the two digit number in the front portion of that make a significant differe ...

The saga continues. I transferred the 503 chip from the doner board to the old PCB and the voltages look good. The HDD does not spin up. I measured zero volts on all of the four pins that feed the ...

Well I checked some voltages on the known good board and the IC that is fried normally carries 5V+/- and the TVR diode on the other side is measuring +12V. So the 5volt line shorted in the FW503 chip. ...

fzabkar, hopefully sunndreamspace was just joking with you and not being nasty. I will say that its great to have someone try to help. I have helped many people ove the net with lots of problems and ...

BTW - I scraped the top of that FW503 and it had burned carbon! I check the one on the new board and it was fine. You may have nailed that DC to DC converter! According to the datasheet it has an i ...

Thanks for the replies. I checked the TVS diode you identified and it looks good. On 200 Ohm scale its open. But if I use the diode check setting it has low/high reading as expected. I checked on ...