4: Repair Internal Assemblies — Main Chassis
118
Assembling the Main Chassis
When assembling the Main PCA Module, there are numbers of cables need to connect to the Therapy
PCA. See Tab le 3 0.
To assemble the Main PCA Module and the Back Part Assembly of the Main Chassis:
1 Connect the two power cables to J1 and J2 sockets on the Therapy PCA. See Figure 91.
2 Connect the Battery Signal cable to J5 sockets on the Therapy PCA. See Figure 91.
3 Connect the Therapy Capacitor cables (two spade connectors) to J9 and J11 sockets on the Therapy
PCA. See Figure 90.
Note the tab marking on the Therapy PCA. The J9 socket Tab marked “Red” connects to red cable.
The J11 socket Tab marked “White” connects to white cable.
4 Connect the Internal Resistors Module cables to the J18 and J19 sockets on the Therapy PCA. See
Figure 90.
5 Place the Main PCA Module into the Back Part Assembly.
6 Press the metal part of the middle metal frame and push the Main PCA Module until the Middle
Frame latches snap on the metal frame of the Main PCA Module firmly. See Figure 93 and
Figure 89.
When you place the Front Part Assembly:
a place the I/O PCA Connector Cable through the cable slot, see Figure 92.
b place the NBP tube through the Front Part Assemblies, see Figure 85.
Figure 93 Install the Main PCA Module
7 Connect the two fan cables to J12 and J13 sockets on the Therapy PCA. See Figure 88.
a connect the fan 1 (close to the AC Power Assembly) cable to J12
b connect the fan 2 (close to the Internal Resistor Module) cable to J13.
8 Install the seven M 3x23 screws with washers, see Figure 88.
9 Install the Therapy PCA High Voltage Cable and the Ground Cable, see Figure 87.
a Place the white spade connector to J10 socket on the Therapy PCA.
b Place the red spade connector to J8 socket on the Therapy PCA.
10 The Main Chassis Assembling completed.
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