Compaq Portable 486 Compaq Portable 486c Personal Computer Maintenance and Ser - Page 70

I/O Board, Remove the power supply

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4. Using a Torx T-10 screwdriver, remove the screw securing the fan assembly (Figure 5-14). 5. Slide the fan assembly out (Figure 5-14). To replace the fan assembly, reverse the steps in the above illustration. Chapter 5.11 I/O Board To remove the I/O board, complete the following steps: 1. Remove the rear panel (Section 5.6). 2. Remove the options cover (Section 5.7). 3. Remove the video board (Section 5.8). 4. Remove the processor board (Section 5.8). 5. Remove the power supply (Section 5.9). 6. Remove the fan assembly (Section 5.10). 7. Carefully disconnect the diskette drive cable, fixed disk drive cable, and power cable (Figure 5-15).

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4. Using a Torx T-10 screwdriver, remove the screw securing the fan assembly
(Figure 5-14).
5. Slide the fan assembly out (Figure 5-14).
To replace the fan assembly, reverse the steps in the above illustration.
Chapter 5.11 I/O Board
To remove the I/O board, complete the following steps:
1. Remove the rear panel (Section 5.6).
2. Remove the options cover (Section 5.7).
3. Remove the video board (Section 5.8).
4. Remove the processor board (Section 5.8).
5. Remove the power supply (Section 5.9).
6. Remove the fan assembly (Section 5.10).
7. Carefully disconnect the diskette drive cable, fixed disk drive cable,
and power cable (Figure 5-15).