Keithley 7070 Instruction Manual
Keithley 7070 Instruction Manual

Keithley 7070 Instruction Manual

Universal adapter card
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A l l t e s t I n s t r u me n t s , I n c .
5 0 0 C e n t r a l A v e .
F a r mi n g d a l e , N J 0 7 7 2 7
P : ( 7 3 2 ) 9 1 9 - 3 3 3 9
F : ( 7 3 2 ) 9 1 9 - 3 3 3 2
a l l t e s t . n e t
s s a l e s @ a l l t e s t . n e t
T h e t e s t & me a s u r e me n t
e q u i p me n t y o u n e e d a t
t h e p r i c e y o u w a n t .
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a v a i l a b l e w i t h c e r t i f i e d c a l i b r a t i o n f r o m o u r i n - h o u s e s t a f f
o f t e c h n i c i a n s a n d e n g i n e e r s .
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t
G e t a q u o t e t o d a y !
C C a l l ( 7 3 2 ) 9 1 9 - 3 3 3 9 o r e ma i l s a l e s @a l l t e s t . n e t .

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Summary of Contents for Keithley 7070

  • Page 1 T h e t e s t & me a s u r e me n t e q u i p me n t y o u n e e d a t t h e p r i c e y o u w a n t . A l l t e s t I n s t r u me n t s , I n c .
  • Page 2 Model 7070 Universal Adapter Card Instruction Manual A G R E A T E R M E A S U R E O F C O N F I D E N C E...
  • Page 3 WARRANTY Keithley Instruments, Inc. warrants this product to be free from defects in material and workmanship for a period of 1 year from date of shipment. Keithley Instruments, Inc. warrants the following items for 90 days from the date of shipment: probes, cables, rechargeable batteries, diskettes, and documentation.
  • Page 4 Model 7070 Universal Adapter Card Instruction Manual ©1988, Keithley Instruments, Inc. All rights reserved. Cleveland, Ohio, U.S.A. Second Printing, October 2000 Document Number: 7070-901-01 Rev. B...
  • Page 5 Addendum A (Document Number 7070-901-03)........December 1988 Revision B (Document Number 7070-901-01) ..........October 2000 All Keithley product names are trademarks or registered trademarks of Keithley Instruments, Inc. Other brand and product names are trademarks or registered trademarks of their respective holders.
  • Page 6 Keithley products are designed for use with electrical signals that For maximum safety, do not touch the product, test cables, or any are rated Installation Category I and Installation Category II, as de- other instruments while power is applied to the circuit under test.
  • Page 7 Chassis connections must only be used as shield connections for leads, and input jacks, must be purchased from Keithley Instru- measuring circuits, NOT as safety earth ground connections. ments. Standard fuses, with applicable national safety approvals, may be used if the rating and type are the same.
  • Page 11: Table Of Contents

    Table of Contents SECTION 1 — General Information INTRODUCTION................FEATURES.
  • Page 12 2.6.2 Radio Frequency Interference............. . 2-21 2.6.3 Ground Loops .
  • Page 13 Model 7070 Block Diagram........
  • Page 14 List of Tables SECTION 2 — Operation Table 2-1 Analog Pathway Summary ............. Table 2-2 Drive Current per Crosspoint .
  • Page 15: Section 1 - General Information

    Any improvements or changes concerning the adapter card or manual will be explained in an addendum included with There are now two versions of the Model 7070. The standard the unit. Be sure to note these changes and incorporate them Model 7070 Universal Adapter Card includes ribbon cables into the manual before using or servicing the unit.
  • Page 16: Specifications

    1.6 SPECIFICATIONS The Model 7070 Instruction Manual is three-hole drilled so Model 7070 speciÞcations may be found at the front of this that it can be added to the three-ring binder of the manual. These speciÞcations are exclusive of the matrix Model 707 Switching Matrix Instruction Manual.
  • Page 20: And +6V Supplies

    This section does not apply to the Model 7070-PCA. 2.4.2 Ribbon Cable Connections One of the two functions of the Model 7070 is used as an Three 10-foot ribbon cables attached to an extender board extender card for troubleshooting or bench-top testing of are supplied with the Model 7070.
  • Page 58: Section 4 - Service Information

    When handling such devices, 4.1 INTRODUCTION use the precautions listed below. This section contains information necessary to service the Model 7070 Universal Adapter Card and is arranged as NOTE follows: In order to prevent damage, assume that all parts are static-sensitive.
  • Page 59: Troubleshooting

    Keithley 7070* Allow circuit access Hole and Standoff *A second Model 7070 will be necessary to access the card. (1 of 8) 4.4.2 Troubleshooting Procedure Table 4-2 summarizes the troubleshooting procedure for the Universal Card. Some of the troubleshooting steps refer to the ID data timing diagram shown in Figure 4-2.
  • Page 60: Principles Of Operation

    The following paragraphs discuss the basic operating prin- Figure 4-3 shows a simpliÞed block diagram of the ciples for the Model 7070. A schematic diagram of the Model 7070. Key elements include the buffer (U44), ID data adapter card may be found in drawing number 7070-106, circuits (U45, U46, and U47), relay drivers (U35-U41), and located at the end of Section 5.
  • Page 61: Id Data Circuits

    Power-On Safeguard Output Enable Figure 4-3. Model 7070 Block Diagram 4.5.2 ID Data Circuits 1. The CARDSEL line is brought low, enabling the ROM outputs. This line remains low throughout the ID data Upon power-up, the card identiÞcation data information transmission sequence.
  • Page 63: Section 5 - Replaceable Parts

    This section contains a list of replaceable electrical and If the matrix card is to be returned to Keithley Instruments mechanical parts for the Model 7070, as well as a component for repair, perform the following: layout drawing and schematic diagram of the adapter card.
  • Page 68 TABLE 5-2. EXTENDER BOARD, PARTS LIST NOTE This table does not apply to the Model 7070-PCA. CIRCUIT KEITHLEY DESIG. DESCRIPTION PART No. CAP, 150pF, 10%, 1000V, CERAMIC C-64-150P J101 CONN, 86 PIN CARD EDGE CS-579-1 J107 CONN, 34 PIN CARD EDGE...
  • Page 73 Specifications are subject to change without notice. All Keithley trademarks and trade names are the property of Keithley Instruments, Inc. All other trademarks and trade names are the property of their respective companies. Keithley Instruments, Inc. 28775 Aurora Road • Cleveland, Ohio 44139 • 440-248-0400 • Fax: 440-248-6168 1-888-KEITHLEY (534-8453) www.keithley.com...

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