Tektronix TCPA300 SERIES, Instruction Manual

Page: 177 / 205

Disassembly
TCPA300/400 Amplifiers and TCP300/400 Series Current Probes Instruction Manual
7- 19
Remove the current transformer of the probe as follows:
8. To remove the current transformer, lift the assembly out of the probe as
shown in Figure 7--16 and unplug it from the circuit board.
Circuit board/cable assembly
Current transformer
TCP404XL
TCP303
Circuit board
and cable
Current transformer
Figure 7- 16: Removing the current transformer
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 trans-
former and cable/circuit board subassemblies must be replaced with updated
versions as a set (order Replacement Kit Number 050--3663--XX). After the kit is
installed, the separate components can be replaced with part numbers for probes
with serial number B020000 and above.
9. To 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 7--17 on
page 7--20. 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.
Removing the Current
Transformer
Removing the Circuit
Board or Cable (TCP303)