2025-05-01

WD HDDs Noise related to PCB

DATARECOVERYUNION.COM05 mins

The Causes & Solutions of Two Main types of Noise which is occurred in WD HDDs (Especially Related To L-shape PCBs).Continuous Noise & Clicking Noise
1- The Continuous Noise

Sometimes there is a continuous noise come from WD HDDs mainly with L-shape PCBs
with motor ICs (Smooth 1.3) , (L6278 1.7) & (L6278 1.2).
the noise is like : Trrrrrrrrrrrrrr or Trrrr….Trrrr…Trrrrr

so all we have to do for fixing this problem is:

1- clean the connection points which connect the head stack pins with the PCB using a pencil Rubber …carefully.

2- clean the motor IC pins thoroughly using a solvent & Toothbrush then wipe it with a piece of smooth handkerchief to remove the dust & dirt from it.

-Note- the two steps mentioned above solve the problem in few cases.

3- If the two steps mentioned above didn’t fix the problem , you have to replace the motor IC cause it’s damaged.

2-The Clicking Noise
when u power on the hard drive u will hear a noise like (click,click….click,click…click,click)
this noise may be related to the head stack or PCB, the first thing you have to do is to check the PCB By The following steps:

1- first u have to clean the Whole PCB With a Solvent & Toothbrush then wipe it with a piece of smooth handkerchief to remove the dust & dirt from it.
Caution: Cleaning of the PCB must be done carefully to avoid removal of any small electronic components.

2- Check the Resistor (R120) , [ the right value of this Resistor is (0.12 Ohm) ] ,you may adjust your multimeter to Resistor Measuring Mode to Determine its Value ,if it’s Damaged u have to replace it. but before that, u have to check Transistor Q3 , it’s a 6 pins transistor , for measuring this transistor u may adjust your multimeter to Diode Mode,[ the right Value will be: (first two pins = 0.000 , second two pins =0.000 , Third two pins = nearly over 600)]
if Q3 is Damaged it will burn ur R120 after u replace it , so be sure that Q3 is ok before replacing R120 & u may also Check Transistor Q6 by the previous method to be completely sure it’s safe to replace R120.
Note: ( to be sure of The right values of these electronic components u may compare the values u have measured with the values of a working PCB’s Components)

3- Check The Coils (such as L2 & L7) – adjust your multimeter to diode mode then the right value must be ( 0.000 ) for any coil as u all know.

4- Inspect the whole PCB for any removed component ( such as small capacitors or Resistors ) … the removal of these small components may occurred while forced cleaning of the PCB …. so be careful while cleaning it.

5- In rare cases the firmware microchip may be damaged.

——————————————————————————————

-Note- in case of Motor ICs (L6278 1.7) & (L6278 1.2) first try to desolder them then resolder them again before u decide to replace them with a new ones … this sometimes work , but if it didn’t work … replace them directly.
– in case of Motor IC (Smooth 1.3) you must replace it directly.

The image below shows you where to clean.

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The Science Behind Data Recovery

DATARECOVERYUNION.COM03 mins

The computer data that seems solid and reliable when you see it on a monitor or hard copy printout really exists only as minute electrical impulses crammed tightly on tape, diskettes or hard drives. Depending on how it is stored, that data will continue to exist until the medium is destroyed, scrambled by a virus or overwritten by other information. In other words, some ‘physical’ event prevents you from accessing your data. Data recovery companies work to reverse that process, any way they can.

There is no single method to retrieve data. In fact, it is extremely rare to apply a solution more than once. To avoid damage from repeated scanning, a skilled data recovery company will find a way to duplicate client data, even if it must be done bit by bit.

Hard disk drives store data store data on metal oxide platters spinning as fast as 10,000 revolutions a minute while an actuator arm reads and writes magnetic charges one millionth of an inch above the surface. Even though any contact can and does destroy data, a great deal of information can still be harvested from physically damaged media. Because the manufacturers of storage media like hard drives are constantly striving to compress more data on to smaller surfaces, a data recovery specialist must have a ‘clean room’ to avoid dust or dirt causing more damage to the delicate magnetic media.

Data recovery requires not only specialized equipment but people with advanced skills and the creativity to apply them in unique and demanding situations.

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Advertising company 2 disk RAID0 reorganization secondary data recovery

DATARECOVERYUNION.COM01 mins

Case:A advertising company client suddenly stuck to death when the computer was used. Restarting the computer could not identify RAID normally. Customers recovered in another house before the data recovery center, but the recovered things could not be opened. Solution:After receiving the hard disk from the data recovery center, the data recovery tool was received…

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Imation Launches DataGuard Backup Appliances

DATARECOVERYUNION.COM05 mins

Imation Launches DataGuard Backup AppliancesDataGuard R4 and T5R appliances are suitable for many cloud-storage APIs, including individuals from Amazon . com S3, Dropbox and OpenStack-based cloud companies.

Scalable-storage and data-security company Imation Corp. (New york stock exchange: IMN) introduced purpose-built backup appliances designed to enable small , midsized companies (SMBs) to safeguard their information with multiple amounts of data protection from one backup infrastructure. The DataGuard Model R4 and Model T5R appliances use hard disk drives, detachable RDX disk tubes, replication and cloud storage to deliver data protection for budget-conscious companies. The appliances can be found through Imation’s network of funnel partners.

Using DataGuard R4 or T5R appliances, SMBs can replicate data to another DataGuard appliance at another site or to store off-site on RDX detachable disks. DataGuard appliances also integrate with existing backup and disaster recovery infrastructure, including most backup programs. Additionally, onsite copies are made to enable fast full reinstates to meet recovery-time objectives and off-site copies help ensure quick disaster recovery.

“Imation’s DataGuard appliances are the main thing on addressing the main concerns that SMBs have about safeguarding their data, by enabling customers to make the most of the backup infrastructure they presently have in position, Imation supplies a media-agnostic solution for customers to solve their backup challenges nowadays while serving as a bridge to safeguarding and storing their data within the cloud tomorrow.” stated Jerome Wendt, lead analyst and leader at storage analyst and talking to firm DCIG.

DataGuard R4 and T5R appliances are suitable for many cloud-storage APIs, including individuals from Amazon . com S3, Dropbox and OpenStack-based cloud companies. When a cloud backup is seeded by shuttling RDX tubes, DataGuard supports remote backup copies, and SMBs can automate protection since data backup to cloud storage is carried out with no human intervention once it’s initially set up.

“Cloud is extremely compelling, however the initial data to a cloud service encounters very real limitations – large levels of data and limited bandwidth, this initial transfer – known as cloud seeding – can take days over a web connection, with respect to the data footprint. Imation’s DataGuard appliances eliminate this problem, as clients can physically transport an RDX cartridge to a cloud provider for initial seeding, and integrated software handles periodic inspections to make sure the cloud backup is current.” stated Ian Williams, v . p . of worldwide marketing and product management at Imation.

“Many SMBs are intrigued by cloud computing and comprehend the cost and operational efficiencies that cloud storage can deliver, but struggle to incorporate cloud to their existing backup infrastructure,Imation’s DataGuard solution provides a gateway to the cloud, enabling SMBs to easily safeguard their valuable data.” stated Bill Schilling, director, scalable storage marketing, Imation.

The organization also lately released Imation LTO Tape Libraries as well as provides Imation InfiniVault multi-tiered data-archive appliances and Imation RDX detachable hard-disk storage.

Imation Corp: http://www.imation.com/en-US/

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Changan Group Data Recovery

DATARECOVERYUNION.COM02 mins

Case:Financial software cannot be logged in. This sudden message notified to the Changan Group Information Center. The senior engineer of the information center immediately connected the server to the server.At that time, the service after -sales Dell Center was notified. Dell engineers listened to the customer’s description and immediately contacted the data recovery center engineers…

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