Tektronix 070-9778-03, Руководство по обслуживанию

Страница: 69 / 119

Maintenance
TLA 711 Color Benchtop Controller Service Manual
6–17
To gain access to the hard disk drive, separate the controller board from the
adapter board. Refer to Figure 6–7 and follow these steps:
1. Disconnect the two ribbon cables from the component side of the controller
board. Note the location of the ribbon cables for reassembly.
2. Remove the five screws that secure the controller board to the adapter board.
3. Squeeze the two sides of the standoff located in the center of the controller
board to unlatch the standoff while separating the two boards. There will be
some mechanical resistance felt from the interconnections between the two
boards.
Table 6–4 lists the four SMB connector signal wires and their color code
identifications. Refer to Figure 6–7 for the correct location of each SMB
connector.
Table 6–4: Signal wire identification
Signal wire color Signal identification
White SYSTEM TRIG IN
White/Brown stripe SYSTEM TRIG OUT
White/Red stripe EXTERNAL SIG IN
White/Orange stripe EXTERNAL SIG OUT
To remove the hard disk drive, refer to Figure 6–8 and follow these steps:
1. Remove the four screws securing the hard disk drive to the solder side of the
adapter board.
2. Carefully slide the hard disk drive away from the hard disk drive connector.