xx
050-3109-XX
A6302 Current Probe
ZZZ
Cable Assembly Replacement Kit
Instructions
www.tektronix.com
P075100800*
*
075-1008-00
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or suppliers, and are protected by national copyright laws and international treaty provisions.
Tektronix products are covered by U.S. and foreign patents, issued and pending. Information in this publication
supersedes that in all previously published material. Specifications and price change privileges reserved.
TEKTRONIX and TEK are registered trademarks of Tektronix, Inc.
Contacting Tektronix
Tektronix, Inc.
14200 SW Karl Braun Drive
P.O. Box 5 0 0
Beaverto
USA
For product information, sales, service, and technical support:
n, OR 97077
In North America, call 1-800-833-9200.
Worl dwid e, visi t www.tektronix.com to find contacts in your area.
Kit Description
This kit includes parts and instructions to replace the existing cable assembly of
the A6302 Current Probe. The new cable assembly includes a new circuit board
and requires an additional g round connection to the lower body half of the probe
head.
This document supports Tektronix mods: ECR 32847
Instrument
Minimum T
s
ool and Equipment List
Kit Parts List
A6302 Serial numbers B010100 through B064999
Tool Description
Screwdriver Small Pozidrive
Desoldering tool
Solder iron
Solder Rosin-core, electronic-grade, 60/40
Quantity Part number Description
1 ea 175-1836-XX
1 ea 120-0464-XX
1 ea 204-0714-XX
1 ea 196-3428-XX
a
1e
1 ea 070-3905-XX Manual, Tech: Instructions, A6302, A6302XL
1 ea 075-1008-XX
——
Solder vacuum
Pencil type 20-25 Watt
————–
Cable Assy: Cable & Circuit Board; A6302
Transformer, Cur; Upper & Lower, A6302
Body Half, Probe, Lower, W/Contacts;
02, Safety controlled
A63
re, Insulated: 30 AWG, BLK,1.200, cut &
Wi
stripped both ends
bel: 050-kit, A6302
La
Kit Instructions, A6302 Cable Assembly
eplacement
R
A6302 Cable Assembly Replacement 1
Installation Instructions
Service Safet
Disconnect Power
ySummary
Only qualified personnel should p erform service procedures. Read this Service
Safety Summary before performing any service procedures.
Before disassembling the probe, remove power to the probe by disconnecting the
probe from the measurement instrument.
Installation Instructions
These instructions assume a certain familiarity with the instrument. If further
details are required for disassembly or assembly, refer to the A6302 & A6302XL
Instructions. For assistance installing this kit, please call your nearest Tektronix,
Inc., Service Center or Tektronix Factory Service.
Disassemble the Probe Body
Use the following procedure to disassemble the probe b ody:
WARNING. Probe disassembly should only be performed by qualified service
personnel.
1. Remove the two screws from the bottom o f the probe and pull back the strain
relief boot. (See Figure 1.)
Figure 1: Removing the strain relief boot
2 A6302 Cable Assembly Replacement
Installation Instructions
2. Move the probe s
NOTE. The probe slide contains a tiny metal ball. In step 3, be careful not to lose
the ball by accidentally letting it fall out.
3. Hold the probe in a top-up horizontal position and slide the top half of the
probe body off. (See Figure 2.)
lide assembly to the open position.
Figure 2: Removing the top half of the probe
4. Remove the metal ball.
A6302 Cable Assembly Replacement 3
Installation Instructions
5. Turn the probe u
slide. (See Figure 3.)
Figure 3
: Removing the probe slide
pside down, push the slide back slightly, and remove the
4 A6302 Cable Assembly Replacement
Installation Instructions
Remove the Cur
rent Transformer and the Cable Assembly
Remove the current transformer and the cable assembly as follows:
1. The circuit board may be soldered to a ground post attached to the body half.
If necessary, carefully desolder the connection before attempting to remove
the circuit board.
2. Remove the transformer and the circuit board by lifting the entire assembly
out of the probe as shown. (See Figure 4.)
Figure 4: Removing the current transformer and circuit board
3. Pull the transformer off the connector pins on the circuit board as shown.
igure 5.)
(See F
Figure 5: Separating the current transformer from the circuit board
A6302 Cable Assembly Replacement 5
Installation Instructions
Installing th
e Black Wire and New Cable Assembly
Install the new black wire, cable assembly, and lower probe body half as follows:
1. Position the new lower probe body half from the kit on a stable surface, or
secure the new probe body half with a bench vise.
2. Bend the solder clip up as shown and solder the new black wire to the clip.
(See Figure 6.) It is important to bend the clip back down so that it will not
short to the circuit board.
e 6: Installing the black wire
Figur
3. Solde
4. Plug
r the other end of the b lack wire into the forward hole on the circuit
board of the new cable assembly. (See Figure 7 on page 7.)
the new transformer onto the pins of the cable assembly.
6 A6302 Cable Assembly Replacement
Installation Instructions
5. Place the trans
shown, while carefully dressing the black wi re and rear connector wires into
the body. (See Figure 7.)
CAUTION. Carefully dress the wires in the lower body half to avoid damaging the
wires inside the probe, and to avoid contact with the slide assembly.
former and the circuit board into the body of the probe as
Figure 7: Installing the current transformer and circuit board
6. Position the solder lug of the body half in the rear hole of the circuit board
and solder the lug.
7. Before reassembling the probe body, be sure that the gap between the
stationary and moveable core pieces is clean. If necessary, use isopropyl
alcohol or a similar cleaning agent to clean the pieces. Also, clean the contacts
of the slide switch, if necessary. Should the plastic slide assembly require
lub
NOTE. Exercise care when fitting the slide back into the probe body; aligning the
switch contacts can require patience.
Reassemble the Probe Body
1. Reassemble the probe body. Refer to the instructions for disassembling the
probe body and perform the steps in reverse order. (See page 2, Disassemble
the Probe Body.) Make sure the slide assembly does not come in contact
with the wires in the lower body half.
2. Add the 050-kit label to the side of the probe body.
rication, sparingly apply silicone-based grease to the parts.
A6302 Cable Assembly Replacement 7
Installation Instructions
Verify Operat
ion
Connect the probe to one of the compatible amplifiers listed in the instruction
manual and perform a degauss/autobalance on the probe. If you need to confirm
that the prob
procedures listed in the manual.
Note that so
preserve the calibrated specifications. If you calibrate the probe on an AM503
or AM503A amplifier and then interchange the probe with another amplifier or
system, the specifications cannot be guaranteed. (See Table 1.)
Table 1: A6302 Probe interchangeability after calibration
Amplifier Intercha
AM503 No – keep together as a system
AM503A No – keep together as a system
AM503B Yes – on
AM5030 Yes – only with another AM5030 or an AM503B
e meets warranted specifica tions, use the p erformance verification
me probe/amplifier combinations must be kept together as a system to
ngeable?
ly with another AM503B or an AM5030
8 A6302 Cable Assembly Replacement
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