HP 8753E Service Manual page 556

9. Remove the source assembly (refer to "A3 Source Assembly" in this
chapter).
10. Remove the samplers and pulse generator (refer to "A4, A5, A6 Samplers
and A7 Pulse Generator" in this chapter).
11. Remove the card cage boards (refer to "A& AlO, All, A12, A13, Al4
Card Cage Boards" in this chapter). Continue with step 12 to remove the
motherboard, or step 13 to remove the motherboard/card cage assembly.
12. To disconnect the motherboard (item 7), remove the 34 riv screws (item 8).
Important: Do not misplace ang of these screws.