Seagate 2tb HDD

[slovars]

Prompt what this kompanenty and their denomination

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[slovars]

100617465 REV B

[fzabkar]

The circled components are probably inductors, but the layout of the supply traces is odd. In any case those components appear to related to the 12V supply whereas the darkened area to the right suggests that the drive may have sustained damage to its 5V components.

Did you measure the resistances of the two TVS diodes?

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TVS_diodes.jpg (108.48 KiB) Viewed 13912 times

[slovars]

I have the right side of all good, that's just burned these elements

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[slovars]

and now do not know what elements should be there and what they can be replaced

[fzabkar]

Those are the inductors for the 12V supply. Your drive has sustained an overvoltage on the 12V input, so please check or replace your PSU. The 12V TVS diode will be short circuited, so remove it.

See http://www.users.on.net/~fzabkar/HDD/TVS_diode_FAQ.html

You then need to run an insulated wire link between the 12V pins (13 - 15) at the SATA power connector and the cathode of the diode. The cathode will be marked with a "v" on the PCB. Confirm that there is no short circuit across the 12V input after performing your repair.

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[Matiw]

Hi fzabkar,

Is the use of the series inductor to reduce sudden increase in current through its reverse EMF ? Or is there some other "ulterior motives" ? Please explain.

Thanks.

Those are the inductors for the 12V supply. Your drive has sustained an overvoltage on the 12V input, so please check or replace your PSU. The 12V TVS diode will be short circuited, so remove it.

See http://www.users.on.net/~fzabkar/HDD/TVS_diode_FAQ.html

You then need to run an insulated wire link between the 12V pins (13 - 15) at the SATA power connector and the cathode of the diode. The cathode will be marked with a "v" on the PCB. Confirm that there is no short circuit across the 12V input after performing your repair.

[slovars]

It's in my external HDD connected children by mistake the power supply from the laptop)))

[slovars]

When checking the tester marked red diode current flows. A marked blue no.

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[fzabkar]

The 12V diode (red) is short circuited. Remove it. Replace it with an SMBJ12A if you want continued protection.

The function of the inductors is to filter high frequency noise.

[disksolution]

Buy a donor hard drive PCB Diagram must be same and the head-map.

[slovars]

How can I copy the ROM, I do not mean to resolder?

[fzabkar]

How can I copy the ROM, I do not mean to resolder?

The easiest and safest way would be to buy a PCB from a supplier who includes a free firmware transfer service, eg onepcbsolution.com or hdd-parts.com.

Alternatively, see http://malthus.zapto.org/viewtopic.php?f=110&t=85&p=98

[fzabkar]

One thing you need to be mindful of is the supply voltage. Some flash chips require 2.5V or 1.8V whereas the Willem programmer supplies 3.6V. Even if the flash chips can withstand this higher voltage, you need to be aware that the programmer is powering everything that is connected to the chip's supply rail, not just the chip itself.

As for the write errors, one thing you might try would be to ensure that the MCU is "quiet". If the crystal is oscillating, grab it with your finger. This will hopefully kill the oscillation and prevent the MCU from interfering with the data and clock lines, assuming that is the problem. That said, if the chip reads correctly, then it is unlikely to be an "interference" problem. Instead I'd be wondering about the write voltage. Maybe the supply voltage dips below the write threshold during programming ???

[slovars]

http://www.ebay.com/itm/EZP2010-High-Sp ... 232f245296

Fit a programmer?

[slovars]

Fit a programmer?

[fzabkar]

Fit a programmer?

I suspect that a lot of people use these devices as in-circuit programmers without paying any attention to their effect on the other chips. IMHO you should consult the respective datasheets before using the device.

AFAICT there is not enough information to determine the supply voltage used by the EZP2010 programmer. I can see references to 5V and 3V, but no 2.5V devices or 1.8V. Perhaps you should select your device from the menu and then measure the voltage at the Vcc pin of the ZIF socket before connecting it to your circuit.

That said, people seem to get by with the 3.6V Willem programmers without doing any damage. :?

[HaQue]

Anyway be prepared to buy more than one programmer.

I needed to do PICs a while ago and bought a programmer for what I thought was correct. No, I needed a different one. So I bought a PIC Programmer and that didn't do much else I needed. When I first started looking at Flash Mem, I bought a willem as it was reported to do NAND. Well it did the firmware type small chips but not the Flash Drive type NAND. So I had to buy another programmer/reader.

I think you should be first figuring exactly what you want to read and write and then research if the programmers you see can do those types of chips. "BIOS" chips and "Firmware" chips is a very broad description. Better to figure out some part numbers.

[fzabkar]

Willem 5.0E can do ALL SPI-FLASH (SOIC-8) ROM chips that you will find on WD, Seagate, Samsung, Maxtor, etc.
It WILL NOT work on Hitachi NVRAM chips.

AIUI the Willem programmer has a Vcc of 3.6V.

How does it handle the following chip and how does it affect a 1.8V SDRAM on the same supply rail?

EN25S40, 4 Megabit, 1.8V, Serial Flash Memory with 4Kbyte Uniform Sector:
http://www.eonssi.com/upfile/p2013114174142.pdf

Full voltage range: 1.65-1.95 volt

Unfortunately the Absolute Maximum Rating for Vcc has a typo.