The following table lists the data export devices in the instrument.

Note:The following procedure covers only Tektronix installed software.

If your organization's security protocols allow the use of software to purge or clear solid state drives, you can use commercial software to erase free space on the drive before sending the instrument out for upgrades or repair. Follow the instructions that come with the software to be sure that the erasure of sensitive data from the drive complies with your organization's security protocols.

On solid state drives, the drive and the operating system work together to reallocate sectors on the drive to even out the wear of the storage cells. Make sure that software you use to purge or clear a solid state drive is approved for solid state drives.

CAUTION:Before clearing the drive to meet security requirements, be sure that an OS-restore disk and product software restore disk are available and that you have the procedures needed to restore the OS and product software.

Sequence for clearing secure data from a drive:

1. Erase all files with the following extensions:

   • *.png; *.bmp;*.pcx, *.tif, *.jpg – These file types can be screenshots that can contain valuable information.

   • *.msk, *.set, *.wfm, *.csv, *.txt, *.dat – These file types can contain data exported from the instrument (setup, waveforms, measurement results).

2. Acquire several full memory-length acquisitions of noise (no signal attached to the input).

3. Close the TekScope application and erase the free space on the hard disk using commercial software.

For detailed information on removing parts from the instrument, see the DPO70000SX Series Service Manual on www.tek.com.

WARNING:Before doing this procedure, disconnect the power cord from the line voltage source. Failure to do so could cause serious injury or death.

CAUTION:To avoid damaging the drive, perform the following procedure in a static-safe environment with proper electro-static discharge controls in place.

1. Loosen the thumbscrews on the removable drive panel.
2. Pull the removable drive out from the instrument.

The following instructions describe how to disable the built-in USB capability. Using the BIOS disables the devices for DOS and Windows programs, while the Windows Device Manager disables the devices for Windows programs. These procedures disable USB to prevent its use.

Note: If you disable the USB and LAN in the following procedures, you cannot write new firmware to the hard drive. To do so, you must enable one of these items.

To disable LAN ethernet connectivity using the BIOS, do the following.

1. Press Delete during instrument Boot Up to go to the BIOS configuration menu.

2. Go to Advanced BIOS Settings\Chipset Settings\PCH-IO Configuration.

3. Set both LAN1 Controller and LAN2 Controller to Disabled.

4. Press Esc once to return to the main BIOS configuration menu.

   Note: If you do not use a BIOS password, the LAN can be reactivated by any user.

5. Press F4, and select OK to save changes and exit. The LAN system will be disabled and will no longer allow data traffic in or out.

All user-storable data is stored on the removable drive. Sanitize or replace the drive in a manner that meets local and any other security requirements that you have.

Note: To see the size of the drive, refer to the (C:) local disk properties window.

Note: Ensure you create OS Restore media before scrubbing the hard drive/solid state drive or moving the instrument into a secure area.

After the drive is sanitized or replaced, the operating system and instrument software can be reinstalled. Following reinstallation of the operating system and product software, you must run the Signal Path Compensation (SPC) procedure in the Utilities menu after a 20-minute warm-up period. This returns the instrument solid state drive to the initial state shipped from the factory.

Scrubbing the drive will not affect calibration of the instrument, since the factory calibration constants are stored on the acquisition board, entirely separate from any acquisition data or user files. You can completely erase or remove any secure data without affecting the calibration of the instrument. You can also calibrate the instrument in a nonsecure site, and then use the instrument in a secure area without recalibration.

To see the size of the PC RAM in the instrument, refer to the General tab of the Windows System Properties dialog box.

If your instrument is not functioning, you may proceed as follows:

Remove the drive and return the product to Tektronix. A new drive will be installed and the instrument will be repaired and adjusted as necessary. Alternatively you may use the Removable Solid State Drive procedure before returning the product to Tektronix. (See Removeable solid state drive topic.)

For removal instructions, refer to the instrument service manual, available at www.tek.com/manuals.

Remove any attached USB flash drive or external hard drives from the instrument before returning the instrument to Tektronix for repair.

Refer to your company’s internal policies regarding handling or disposal of the external memory device.

Replacement of any missing hardware will be charged according to the rate at the time of replacement.

After the hard drive/solid state drive is sanitized, the operating system and instrument software must be reinstalled.