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TDS 210 and TDS 220 Recall Original Customer Notification

Tektronix, Inc.
Measurement Business Division
PO Box 3960
Portland, Oregon 97208-3960


June 22, 1998

To: Owners of Tektronix Oscilloscopes Model Number TDS210 and TDS220

Tektronix has determined that certain incorrect use of our model TDS210 and TDS220 oscilloscopes may cause the ground connection to fail on these products, potentially exposing the user to risk of serious personal injury or death. As a result, Tektronix is voluntarily recalling these products. While we have reports of situations where the ground lead on these products has opened as a result of this incorrect use, we are not aware of any injuries to users. We are conducting a recall to prevent this possibility of injury to Tektronix customers.

This recall applies to TDS210 and TDS220 products with serial numbers below the following:

TDS210 - s/n below B049400 or C010880
TDS220 - s/n below B041060 or C011175

If a user incorrectly connects a probe ground lead to a voltage source, or incorrectly touches the ground ring near the probe tip to a voltage source, a circuit board trace in the product's electrical ground path may open. Thereafter, the product may appear to function normally; however, the unit is no longer properly grounded. Subsequent use of the product could then result in a serious electrical shock to the user.

Tektronix will modify your product(s) to remove this shock potential and return it to you free of charge.

Even if your product appears to be functioning properly, you should not assume that it does not have an open ground connection. Consequently, immediately stop using the product. All TDS210 and TDS220 products should be returned to Tektronix at our expense for modification as soon as possible.

Instructions concerning the return of your unit(s) are contained in the Recall Return Instruction Sheet.

Thank you for your understanding in this matter. If you have any questions, please call the appropriate number for your geography on the Recall Return Instruction Sheet or visit our Web site.

Very truly yours,


Peter C. Holman
Quality Director
Measurement Business Division
Tektronix, Inc.