Tektronix P6205 User manual

Instruction Manual
P6205
FET Probe
070-8202-01
Warning
The servicing instructions are for use by qualified
personnel only. To avoid personal injury, do not
perform any servicing unless you are qualified to
do so. Refer to all safety summaries prior to
performing service.

Copyright Tektronix, Inc. All rights reserved.
Tektronix products are covered by U.S. and foreign patents, issued and
pending. Information in this publication supercedes that in all previously
published material. Specifications and price change privileges reserved.
Printed in the U.S.A.
Tektronix, Inc., P.O. Box 1000, Wilsonville, OR 97070–1000
TEKTRONIX, TEK, and TEKPROBE are registered trademarks
of Tektronix, Inc.
KLIPCHIP is a trademark of Tektronix, Inc.

WARRANTY
Tektronix warrants that the products that it manufactures and sells will be free from defects
in materials and workmanship for a period of one (1) year from the date of purchase from
an authorized Tektronix distributor. If any such product proves defective during this
warranty period, Tektronix, at its option, either will repair the defective product without
charge for parts and labor, or will provide a replacement in exchange for the defective
product. Batteries are excluded from this warranty.
In order to obtain service under this warranty, Customer must notify Tektronix of the defect
before the expiration of the warranty period and make suitable arrangements for the
performance of service. Customer shall be responsible for packaging and shipping the
defective product to the service center designated by Tektronix, shipping charges prepaid,
and with a copy of customer proof of purchase. Tektronix shall pay for the return of the
product to Customer if the shipment is to a location within the country in which the
Tektronix service center is located. Customer shall be responsible for paying all shipping
charges, duties, taxes, and any other charges for products returned to any other locations.
This warranty shall not apply to any defect, failure or damage caused by improper use or
improper or inadequate maintenance and care. Tektronix shall not be obligated to furnish
service under this warranty a) to repair damage resulting from attempts by personnel other
than Tektronix representatives to install, repair or service the product; b) to repair damage
resulting from improper use or connection to incompatible equipment; c) to repair any
damage or malfunction caused by the use of non-Tektronix supplies; or d) to service a
product that has been modified or integrated with other products when the effect of such
modification or integration increases the time or difficulty of servicing the product.
THIS WARRANTY IS GIVEN BY TEKTRONIX WITH RESPECT TO THE
LISTED PRODUCTS IN LIEU OF ANY OTHER WARRANTIES, EXPRESS OR
IMPLIED. TEKTRONIX AND ITS VENDORS DISCLAIM ANY IMPLIED
WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR
PURPOSE. TEKTRONIX’ RESPONSIBILITY TO REPAIR OR REPLACE
DEFECTIVE PRODUCTS IS THE SOLE AND EXCLUSIVE REMEDY
PROVIDED TO THE CUSTOMER FOR BREACH OF THIS WARRANTY.
TEKTRONIX AND ITS VENDORS WILL NOT BE LIABLE FOR ANY
INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
IRRESPECTIVE OF WHETHER TEKTRONIX OR THE VENDOR HAS
ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES.

P6205 Instruction Manual i
Table of Contents
General Safety Summary v. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Service Safety Summary vii. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Preface ix. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Contacting Tektronix x. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Getting Started
Product Description 1–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Oscilloscopes without the TEKPROBE Interface 1–1. . . . . . . .
Standard Accessories 1–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Probe Features 1–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Grounding the Probe 1–7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating Basics
Ground Lead Inductance 2–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Linear Operating Range 2–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
High-Amplitude Frequency Response 2–3. . . . . . . . . . . . . . . . . . . .
Step Inputs 2–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Sine Wave Inputs 2–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Specifications
Performance Verification
Test Equipment 4–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Attenuation Check 4–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rise Time Check 4–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rise Time Approximation 4–7. . . . . . . . . . . . . . . . . . . . . . . . . .
Bandwidth Approximation 4–8. . . . . . . . . . . . . . . . . . . . . . . . . .
Aberrations Check 4–9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output Offset Check 4–14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table of Contents
ii P6205 Instruction Manual
Maintenance
Preventive Maintenance 5–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Visual Inspection 5–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cleaning 5–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Corrective Maintenance 5–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Static Sensitive Devices 5–3. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacing the Probe Tip 5–3. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacing the TEKPROBE Contact Pins 5–3. . . . . . . . . . . . . .
Replacing Internal Assemblies: Probe Head and Cable,
BNC and Circuit Board Carrier 5–4. . . . . . . . . . . . . . . . . . .
Readjustment Following Repair 5–6. . . . . . . . . . . . . . . . . . . . .
Repackaging for Shipment 5–6. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replaceable Parts
Parts Ordering Information 6–1. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Module Servicing 6–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Using the Replaceable Parts List 6–2. . . . . . . . . . . . . . . . . . . . . . . .
Abbreviations 6–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Mfr. Code to Manufacturer Cross Index 6–3. . . . . . . . . . . . . . .

Table of Contents
P6205 Instruction Manual iii
List of Figures
Figure 1–1: P6205 probe with accessories 1–2. . . . . . . . . . . . . . .
Figure 1–2: Probe finger guard and hand contact area 1–7. . . .
Figure 2–1: Equivalent circuit showing added probe and
ground lead resistance, capacitance, and inductance 2–1. . .
Figure 2–2: Effects of ground lead inductance on waveform
fidelity 2–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 2–3: P6205 typical input vs linear operating range 2–4.
Figure 2–4: Bandwidth vs sine wave input amplitude 2–5. . . . .
Figure 3–1: Typical input impedance vs frequency 3–5. . . . . . .
Figure 3–2: Voltage derating vs frequency 3–5. . . . . . . . . . . . . .
Figure 3–3: Linearity error vs output voltage 3–6. . . . . . . . . . . .
Figure 3–4: Typical frequency response 3–6. . . . . . . . . . . . . . . .
Figure 4–1:Attenuation test setup part 1 4–3. . . . . . . . . . . . . . .
Figure 4–2: Calibrator waveform 4–4. . . . . . . . . . . . . . . . . . . . .
Figure 4–3: Cursors placement for D voltage measurement 4–4
Figure 4–4:Attenuation test setup part 2 4–5. . . . . . . . . . . . . . .
Figure 4–5: Rise time test setup 4–6. . . . . . . . . . . . . . . . . . . . . . .
Figure 4–6: Rise time waveform 4–7. . . . . . . . . . . . . . . . . . . . . . .
Figure 4–7:Aberrations test setup part 1 4–9. . . . . . . . . . . . . . .
Figure 4–8:Aberrations waveform 4–10. . . . . . . . . . . . . . . . . . . .
Figure 4–9: Measuring aberrations 4–11. . . . . . . . . . . . . . . . . . . .
Figure 4–10:Aberrations test setup part 2 4–12. . . . . . . . . . . . . .
Figure 5–1: Disassembling the P6205 probe 5–5. . . . . . . . . . . . .
Figure 6–1: P6205 probe with standard accessories 6–4. . . . . . .
Figure 6–2: P6205 probe optional accessories 6–6. . . . . . . . . . . .

Table of Contents
iv P6205 Instruction Manual
List of Tables
Table 1–1: Standard accessories 1–3. . . . . . . . . . . . . . . . . . . . . .
Table 3–1: Electrical characteristics 3–1. . . . . . . . . . . . . . . . . . .
Table 3–2: Environmental characteristics 3–4. . . . . . . . . . . . . .
Table 3–3: Physical characteristics 3–4. . . . . . . . . . . . . . . . . . . .
Table 3–4: Certifications and compliances 3–4. . . . . . . . . . . . . .
Table 4–1: Test equipment 4–2. . . . . . . . . . . . . . . . . . . . . . . . . . .

P6205 Instruction Manual v
General Safety Summary
Review the following safety precautions to avoid injury and prevent
damage to this product or any products connected to it. To avoid
potential hazards, use this product only as specified.
Only qualified personnel should perform service procedures.
While using this product, you may need to access other parts of the
system. Read the General Safety Summary in other system manuals
for warnings and cautions related to operating the system.
To Avoid Fire or Personal Injury
Connect and Disconnect Properly. Do not connect or disconnect probes
or test leads while they are connected to a voltage source.
Observe All Terminal Ratings. To avoid fire or shock hazard, observe all
ratings and markings on the product. Consult the product manual for
further ratings information before making connections to the product.
Do not apply a potential to any terminal, including the common
terminal, that exceeds the maximum rating of that terminal.
Connect the ground lead of the probe to earth ground only.
Avoid Exposed Circuitry. Do not touch exposed connections and
components when power is present.
Do Not Operate With Suspected Failures. If you suspect there is damage
to this product, have it inspected by qualified service personnel.
Do Not Operate in Wet/Damp Conditions.
Do Not Operate in an Explosive Atmosphere.
Keep Product Surfaces Clean and Dry.

General Safety Summary
vi P6205 Instruction Manual
Safety Terms and Symbols
Terms in This Manual. These terms may appear in this manual:
WARNING. Warning statements identify conditions or practices that
could result in injury or loss of life.
CAUTION. Caution statements identify conditions or practices that
could result in damage to this product or other property.
Terms on the Product. These terms may appear on the product:
DANGER indicates an injury hazard immediately accessible as you
read the marking.
WARNING indicates an injury hazard not immediately accessible as
you read the marking.
CAUTION indicates a hazard to property including the product.
Symbols on the Product. These symbols may appear on the product:
ProtectiveGround
(Earth)Terminal CAUTION Refer to Manual Double Insulated
WARNING
High Voltage