Tektronix WFM 601A, Service Manual

Page: 137 / 368

Maintenance
WFM 601A, WFM 601E, & WFM 601M Service Manual
6–17
J1
J17
J2 J5
J6
J9
J8 J10
J7 J11
J13
J14
J3
Figure 6–15: Connections on the A3 Main Board
4. Pass the CRT and trace rotation leads through the appropriate holes in the
Main board.
5. Use a
3
/
16
-inch nut driver to remove the mounting studs from the rear-panel
RS-232 and REMOTE connectors.
6. Remove the eight screws that hold the Main board in place.
7. Slide the Main circuit board forward until the REMOTE and RS-232
connectors are clear of the rear panel.
8. Remove the Main board by sliding it upward and toward the rear panel until
the control shafts on the front of the board clear the front panel, then lift it
out.
9. To replace the Main board, slide the knob shafts into place in the front panel
while matching the board to the board guides on either side of the front
panel. Pass the CRT and trace rotation leads through the appropriate holes in
the Main board.
10. Lower the rear of the Main board and carefully fit the REMOTE and RS-232
connectors into their rear panel slots.
11. Lower the Main board and insert the securing screws.
12. Reconnect cables and solder the CRT connections to the Main board.