Tektronix P6205, Инструкция по эксплуатации

Страница: 62 / 74

Maintenance
5–4
P6205 Instruction Manual
Replacing Internal Assemblies: Probe Head and Cable, BNC and Circuit
Board Carrier
The steps required to replace the probe head and cable or BNC and
circuit board carrier assemblies are identical.
Probe Disassembly. Refer to Figure 5–1 and use the following
procedure to disassemble the P6205 probe.
1. Use a small, flat screwdriver (or the optional compensation box
release tool) to pry the compensation box cover slots off the tabs
that secure it to the compensation box base.
NOTE . To prevent destructive cable flex, hold the cable boot and
BNC connector securely in the bottom cover as you separate the
compensation box halves to remove the top cover.
2. When all four tabs are released, carefully pry open and remove
the top cover.
3. Taking care to minimize cable flex, lift the cable boot and BNC
connector from the cradle of the bottom cover.
NOTE
. For subsequent reassembly in the procedures to follow, note
the orientation of the BNC locking ring tab with respect to the
bottom cover (there is also a small notch in the circuit board carrier
with a corresponding tab in the compensation box slot).
4. Locate and desolder at the circuit board, the red and black wires
from the cable assembly. Locate and desolder at the circuit board,
the uninsulated ground wire emerging from the cable assembly.
Note the position of all wires for reassembly in the procedure to
follow.
5. Grasp the probe cable close to the BNC end and withdraw the
cable from its connector in the center of the circuit board. Take
care to pull the cable straight out.