Tektronix 070-8462-03, Instruction Manual

Page: 174 / 271

Corrective Maintenance
1735 HD High Definition Waveform Monitor
7–15
Figure 7–5: Positions of CRT deflection leads
To remove the rear-panel assembly (including the BNC board), proceed as
follows:
1. Unsolder the leads from the following 12 locations on the BNC board: P605,
P607, P609, P615, P619, P625, P629, P635, P639, P645, P647, and P649.
NOTE
. There are two cables that connect the rear panel with the Main and
Control boards. These may be unplugged from those boards, as outlined in
steps 2 and 3. Alternately, these cables may be disconnected at the rear panel by
removing two screws from the REMOTE, two screws from the AUX OUT, and the
nut (with lockwasher) from the PIX MON OUT.
2. Disconnect the split ribbon cable connector from J3 on the Control board.
(This cable comes from the rear-panel REMOTE and AUX OUT connec-
tors.)
3. Disconnect the cable from J4 on the back of the Main board.
4. Disconnect the cable from J243 on the BNC board.
5. Disconnect the cable from J501 on the Power Supply board.
6. Remove the two screws and nuts (with captive lockwashers) from the ac line
filter. See Figure 7–6.
Removing the Rear-Panel
Assembly