Disassembly
Replacing the Front Panel Assembly
If you need to replace the Front Panel Assembly, do the following:
1. Wear an antistatic wriststrap when handling the circuit assemblies.
2. Using p liers
, remove the heat sink clip from U9 a s shown.
Figure
23: Disconnecting the front-panel assembly
3. Disco
nnect the front-panel ribbon connector from J4 on the amplifier board.
Release the tab on the connector by carefully lifting the ends of the tab before
removing the ribbon cable from the connector as shown.
4. Remove the screw that attaches the probe input connector frame to the
front-panel assembly. Pull the front-panel assembly away from the amplifier.
5. Do in reverse steps 4 through 1 to install a new front-panel assembly.
66 TCPA300/400 Amplifiers and TCP300/400 Series Current Probes Service Manual
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