Tektronix DC5010 User manual

TABLE OF CONTENTS (cont)
Page
Section 4 C:ALIBRATION (cont)
Check RISEIFALLlnput Impedance:
50
Q. + 3%. 1 MQ. 500 kQ. + 2%
.....
(60 MHz sinewave at high level) 4-8
Check the lnput Sensitivity:
XI Attenuator. DC and AC Coupled;
...............
50 Q 470mV p-p: 4-8
Check the lnput Sensitivity:
X5 Attenuation. DC and AC Coupled;
50
Q ~350mV p-p ...............
4-9
Check lnput Sensitivity:
XI Attenuation. DC and AC Coupled;
...
1 MQ. ~42mV p-p at ~300MHz 4-10
Check lnput Sensitivity:
X5 Attenuation. DC and AC Coupled;
.....
1 MQ.~350mV at ~200MHz 4-10
Check lnput Sensitivity:
XI Attenuation. DC and AC Coupled;
......
1 MQ. ~70mV at ~200MHz 4-11
Check lnput Sensitivity:
X5 Attenuation. DC and AC Coupled;
1 MQ. ~210mV p-p at ~300MHz
. . 4-11
Check Width A: Range G4ns;
MinimumTime Stop Edge To
..............
Start Edge. ~8.5ns 4-12
Check EVENTS B DUR A
Minimum Pulse Width.
.............
~4.0nsand~8.5ns 4-12
Check Delay Mismatch: Int. G2ns
. . 4-12
Check MinimumTIME B
-, A.
~12.5ns
...................... 4-12
........
Check Probe Compensation 4-14
Check the GPlB Bus
............
Through the Controller 4-14
ADJUSTMENT PROCEDURE
Introduction
..................... 4-15
Test Equipment Required
.......... 4-15
PRELIMINARY CONTROL
SETTINGS
..................... 4-15
Preparation
..................... 4-1 5
Check the Digital Board + 12V
Accuracy
( + 2%) ................. 4-1 5
Check the Digital Board -12.2 V
Accuracy
( + 2%) ................. 4-15
Check the Digital Board +5 V
Accuracy
( k 2%) ................. 4-15
Check the Digital Board +2.5 V
(V,) Accuracy
( + 1%) ............. 4-15
Page
Section 4 CALIBRATION (cont)
Check the Analog Board +5 V
.................
Accuracy ( + 2%) 4-16
Check the Analog Board
+ 12V
.................
Accuracy (+ 2%) 4-16
Check the Analog Board -5 V
Accuracy
( + 5%) ................. 4-16
Adjust the Standard Timebase
Accuracy. C1521. Osc Adj
......... 4-16
Adjust the OptionalTimebase
Accuracy. Y1530
................ 4-16
Adjust R1205. A Off. and R1207.
B Off
.......................... 4-16
Adjust R1206. B Rng. and R1204.
A Rng
......................... 4-17
Adjust AT1505 (Channel A) and
AT1533 (Channel B).
Attenuator Compensation
......... 4-17
Adjust AT1505 (ChannelA) and
AT1533 (Channel B). Attenuator
Input Capacitance
................ 4-18
Adjust ECL Threshold Reference
.... 4-18
Section
5 MAINTENANCE
Static-SensitiveComponents
....... 5-1
Test Equipment
.................. 5-1
Circuit Board Removal
and Replacement
................ 5-2
MagneticLatch Relays
............ 5-2
Cleaning Instructions
............. 5-4
Obtaining ReplacementParts
....... 5-4
Ordering Parts
.................. 5-5
Soldering Techniques
............. 5-5
InterconnectingPins
.............. 5-5
Square Pin Assemblies
............ 5-5
Bottom Entry and Side Entry
Circuit Board Pin Sockets
......... 5-6
Multipin Connectors
.............. 5-6
.... REAR INTERFACE CONNECTORS 5-7
Functions Available at Right Rear
InterfaceConnector (PI600)
....... 5-7
Functions Available at Left Rear
InterfaceConnector
(P1820)
........................ 5-8
GPlB Rear lnterface Connector
(P1001)
........................ 5-8
Functions Available at GPlB
Connector
...................... 5-8
REV DEC 1982
iii

TABLE OF CONTENTS (cont)
Page
Section 5 MAINTENANCE(cont)
BUS ADDRESS AND MESSAGE
TERMINATOR SWITCHES.
. .. .. . ....
5-8
Setting the GPlB Address
Switches..
....... .... ..... .....
5-8
Setting the InputIOutput
MessageTerminator Switch.
. . . . ...
5-9
DIAGNOSTICS ..... .. . ......... .. .
5-10
Introduction. .. . .. . .... ...... ....
5-10
Equipment Required. ... ... . . . ... .
5-1 0
Adjustment and Test Point
Locations
.. . .... . .... . . . . . .....
5-10
Self Test . ....... . . ............. 5-10
Test Function
.... . ......... . . . . . 5-11
TROUBLESHOOTING. .. ..... . ......
5-11
SIGNATUREANALYSIS. .. ... . . . ....
5-11
Introduction. ...... . . ... .. . . . . . . .
5-11
InternalSignature Analysis. .. ... ... 5-11
Kernel SignatureAnalysis .........
5-11
Selected Components (R1307 and
Rl326) . .. .... .. . ........ . .. ...
5-1 3
Section 6 OPTIONS
OPTION 01 . .. ....... . . .. . . . .. ....
6-1
Section 7 REPLACEABLEELECTRlCAL PARTS
Section
8 DIAGRAMSAND ILLUSTRATIONS
Section 9 REPLACEABLEMECHANICAL PARTS
REV DEC 1982

"--
Fig.
No.
2-1
2-2
2-3
2-4
2-5
2-6
2-7
2-8
2-9
2-10
2-11
4-1
4-2
4-3
4-4
4-5
L
4-6
5-1
5-2
5-3
5-4
5-5
LIST OF ILLUSTRATIONS
Page
DC 5010 Programmable Universal
Coutnter/Timer
Plug-ininstallation and removal
.........
2-2
DC 5010 front panel display, controls and
connectors..
........................ 2-3
Advantages in signal attenuation
........ 2-8
Typiical triggering levels and sources of trig-
geri~ngerrors
........................ 2-10
Measurementexamples for WIDTH A and
TIME A
+ B .........................
2-11
Measurementexample for synchronous in-
put signals.
......................... 2-11
Measurementexample, EVENTS B
DURING A.
......................... 2-12
Measurementexample for risetime.
......
2-13
Examplesof arming
..................
2-15
Quick command list.
..................
2-17
ASCII and IEEE488 (GPIB) code chart
...
2-41
PerformanceCheck setup for step 3
.....
4-3
PerformanceCheck setup for steps 4 and 7 4-4
PerformanceCheck setupfor steps 5 and 14 4-5
PerformanceCheck setup for step 6
..... 4-7
PerformanceCheck setup for steps 8, 9, 10,
11,12,and13
....................... 4-9
PerformanceCheck setup for step 15
....
4-13
Circuit boards removaland replacement
.. 5-3
Methodof removing magnetic latch relay
.........................
armature.. 5-4
Typ~icalsquare pin assembly.
........... 5-5
Bottom entry circuit board pin socket
.... 5-6
Orientationand disassembly of multipin
conmectors..
........................ 5-6
Fig.
No. Page
5-6 Right rear interfaceconnector assignments 5-7
5-7 Left rear interfaceconnector assignments
. 5-8
5-8 Rear GPIB interfaceconnector assignments 5-8
5-9 Bus address and message terminator
switches..
.......................... 5-9
.... 5-10 Kernelsignature analysis connections 5-12
NOTE
The followingillustrations are located in the diagrams
section at the rear of this manual.
Analog Board (A12).
Auxiliary Board (A18).
Adjustment setup for steps 10and 11.
Adjustment setup for steps 12 and 13.
General troubleshootingflow chart.
lnternal signature analysis "A" (Digital
Board).
lnternal signature analysis "B" (Digital
Board).
lnternalsignature analysis (Analog Board).
lnternalsignature analysis (Auxiliary Board).
Kernelsignature analysis (Digital Board).
Kernelsignature analysis (GPIB Board).
Analog board (A12).
Digitalboard (A16).
Auxiliary board(A18).
Display board (A10).
GPIB board (A14).
REV DEC 1982

The generalsafety information in this partof the summary is
for both operating and servicing personnel. Specific
warnings and cautions will be found throughout the manual
where they apply, but may not appear in this summary.
TERMS
In This Manual
CAUTION statements identify conditions or practices that
could result in damage to the equipment or other property.
WARNING statements identify conditions or practices that
could result in personal injury or loss of life.
As Marked on Equipment
CAUTIONindicatesa personalinjury hazardnot immediate-
ly accessible as one readsthe marking,or a hazardto prop-
erty includingthe equipment itself.
DANGER indicatesa personalinjury hazardimmediately ac-
cessible as one reads the marking.
SYMBOLS
In This Manual
This symbol indicates where applicable cau-
tionary or other informationis to be found.
As Marked on Equipment
DANGER - High voltage.
@ Protective ground (earth)terminal.
ATTENTION
- refer to manual.
Power Source
This product is intended to operate from a power module
whose power sourcewill not apply more than
250 volts rms
between the supply conductors or between either supply
conductor and ground. A protective ground connection by
way of the grounding conductor in the power cord isessen-
tial for safe operation.
Groundingthe Product
This product is grounded through the grounding conductor
of the power module power cord. To avoid electrical shock,
plug the mainframe power cord into a properly wired recep-
tacle beforeconnectingto the productinputor output termi-
nals. A protective ground connection by way of the
grounding conductor in the power cord is essential for safe
operation.
Danger Arising From Loss of Ground
Upon loss of the protective-groundconnection, all accessi-
ble conductive parts(includingknobs and controlsthat may
appear to be insulating)can render an electric: shock.
----
Use the Proper Fuse
To avoid fire hazard, use only the fuse of correct type, volt-
age ratingand current rating as specified in the partslistfor
your product.
Refer fuse replacement to qualified service personnel.
Do Not Operate in Explosive Atmosphe!res
To avoid explosion, do not operatethis product in an explo-
sive atmosphere unless it has been specifically certified for
such operation.
Do Not Operate Without Covers
To avoid personal injury, do not operate this product with-
out covers or panels installed. Do not apply power to the
plug-invia a plug-in extender.
ADD DEC 1982

The DC 5010 Programmable Universal CounterITimer Plug-in Unit.
xiv
ADD DEC 1982

Section 1 -DC 50 10
SPECIFICATION
lnstrument Description
The Tektronix DC 5010 is a programmable universal
counterltimerplug-in. It features reciprocal frequency, Peri-
od, Ratio, and Events B During A measurements to
350 MHz. For timing measurements, the time interval,
width, risetimeand falltime functions feature 3.1
25 nsec sin-
gle-shot resolution. For these measurements, averaging and
identicalA and
B channels provideincreasedaccuracy. Also
included is a time manual mode, as well as three 350 MHz
totalize modes (A, A+ B, and A- B). The DC 5010 also has
Standard Accessories
1 InstructionManual
1 ReferenceGuide
1 Cable Assembly, bnc-to-slide on connector
NOTE
an auto-trigger feature, a probe-compensationfeature, an
auto averages function, and an extensive set of automatic
Refer to the tabbed Accessories page at the rear of
power-up sell' tests.
this manual for more information.
The DC 51010 is an IEEE488 (GPIB) Digital Interface
programmablle counter that allows any manually selectable
function or mode to be operated over the GPlB bus, includ-
performance Conditions
ing all input conditioning controls. The limits stated in the Performance Requirements col-
umns of the following tables are valid only if the DC 5010
The IEEEstandard identifiesthe interfacefunctionsof an has been calibrated at an ambient temperature between
instrument or) the GPlB in terms of interface function sub- +20oC and +300c and
is operating at an ambient tern-
sets. The subsets are defined in the standard. The subsets perature between
ooc and +500~, unless otherwise
that apply to the DC 5010 are listed inTable 1-5 at the end
of this section.
lnformation given in the Supplemental lnformation and
The DC 5010 has a DVM mode that reads Out the
Description columns of the following tables is provided for
nel A and channel B trigger level voltages. Shaped outputs
and an arming input are available at the front panel. Also user information only and should not be interpreted as Per-
available at the front panelis a signalfor use with the probe formanceCheck requirements.
compensationfunction.
The DC 5010 must be operated or stored in an environ-
The operating modes and front-panel settings of the ment whose limits are described under Environmental
DC 5010 can be set and read by programming mnemonics Characteristics.
set to it in ASCII code over the bus.The DC 5010 connects
to the bus when installed in a GPIB-compatible TM 5000-
Series power module. Allow at least 30 minutes warm-up time for operation to
specified accuracy, 60 minutes after storage in a high-
humidity environment.
The DC 50110 can be equipped with an optional, oven-
controlled, 10MHz crystal oscillatorto obtain an even more
stable and precise internal time base.
Instrument Options Safety Certification
Option 01 replaces the internal 10 MHz time base (clock) This instrument is listed with Underwriters Laboratories
circuit with a self-contained proportional temperature con- Inc.under ULStandard 1244(Electricaland ElectronicMea-
trolledoven oscillator for increasedaccuracy and stability. suring and Testing Equipment).
REV MAY 1982

Table 1-1
ELECTRICALCHARACTERISTICS rl
lnput Frequency Range
Coupling
DC
AC
Characteristics
lnput Sensitivity
Sinewave
Coupling Attenuation
CHANNEL A and CHANNEL B INPUTS (also see RiseIFall MEASUREMENT MODE INPUT SPECIFICATION)
Performance Requirements
Dynamic Range
Attenuation
XI
Supplemental Information
Trigger Level Range
Attenuator
X1
Trigger Level
Accuracy
50
Q 1 MQ
>O to a350MHz
>O to a300MHz
100kHz to a350MHz 16Hz to a300 MHz
50
Q (Term low) 1 MQ(Term high)
~25mV rms* ~25mV rms to 200 MHz
~42mV rrns from 200 MHz
to 300 MHz
~70mV p-p pulse* ~70mV p-p pulse
(t200MHz)
~125mV rms*
GI 25 mV rms to 200 MHz
~210mV rrns from
200 MHz to 300 MHz
~350mV p-p pulse* ~350mV p-p pulse
~25mV rms* ~25mV rms to 200 MHz
42 mV rrns to 300 MHz
+3dBat~100kHz +3dBat~16Hz
~70mV p-p pulse ~70mV p-p pulse
(<200 MHz)
~125mV rms* ~125mV rms to 200 MHz
210 mV rrns to 300
MHz
+3dBat~100kHz +3dBat~16'~z
~350mV p-p pulse ~350mV p-p pulse
(~200MHz)
+2% of reading for a dc input voltage
+ 40 mVx atten.
1 MQ performance is from a
25
Q source impedance.
Typical sensitivity is 50 mV p-p
+20 mV.
70 mV p-p to 4 V p-p
350 mV p-p to 20 V p-p
n approximately4 mV steps.
n approximately20 mlV steps.
rrigger level is calibrated
n
+ slope and is firm,ware
:ompensated in
- slc~pe.
*O°C to 40°C; sensitivity decreases by 31 % for 40°C to 50°C.
REV JUL 1983