Disassembly
Removing the Current
Transformer
Remove the curr
ent transformer of the probe as follows:
8. To remove the current transformer, lift the assembly out of the probe as shown
and unplug it f
rom the circuit board.
Figure
35: Removing the current transformer
Removing the Circuit
Board
or Cable (TCP303)
The circuit board and cable are replaceable separately on TCP303 probes (see
note)
.
NOTE. The circuit board and cable on TCP303 probes are replaceable separately
on probes with serial number B020000 and above.
For TCP303 probes with a serial number below B020000, the original
transformer and cable/ circuit board subassemblies must be replaced as a set.
(Order Replacement Kit Number 050-3663-XX.) This kit updates the probe to
the equivalent of a serial number B020000 and above, allowing the separate
components to be replaced in the future.
9
.
T
o remove the circuit board, cut the cable tie that secures the cable to the
board, and then disconnect the cable from the board. (See Figure 36 on
page 79.) When reassembling the probe, do not tighten the new cable tie
until you seat the board and cable in the probe case, to allow enough cable
length for a proper fit.
78 TCPA300/400 Amplifiers and TCP300/400 Series Current Probes Service Manual
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