TM 11-6625-3053-14
d.
Remove dust cover from top of unit and store it in a safe place with side brackets.
REPLACEMENT
Reverse the removal procedure. Restore POWER if electrical checks are in progress.
6-21.
REPLACEMENT OF REAR PANEL.
REMOVAL
a.
Remove instrument dust cover (para 6-20).
b.
Remove 4 phillips head screws, one at each corner of rear panel.
c.
Remove 2 phillips head screws from back panel fastened to T1 transformer bracket.
d.
Remove 3 phillips head screws at bottom of rear panel.
e.
Bend rear panel backward gently so as not to break any wires.
This completes rear panel removal, stage 1.
f.
Remove screws holding TB1 to rear panel. Work TB 1 through panel opening toward interior of instrument.
Place insulating tape over terminals to avoid shock.
g.
Remove J9 frontwards through rear panel, using socket wrench to unscrew retaining nut. This completes
rear panel removal, stage 2.
h.
Remove the following components from rear panel, leaving them wired: R7, S2, XF1, CR1 & B1.
i.
Unwire leads to power jack J10. Remove J10.
This completes rear panel removal, stage 3. The rear panel is now fully detachable from the instrument.
REPLACEMENT
Reverse removal procedure.
622.
REPLACEMENT OF HIGH VOLTAGE COVER.
REMOVAL
a.
Remove instrument dust cover (para 6-20).
b.
Remove 8 screws (4 on each side) on depthwise flanges at main frame floor level.
c.
Remove 6 screws (3 on each edge) of the top surface of cover.
d.
Peel back tape protecting wires from edge of cover.
e.
Work cover out of its position by raising the back and sliding it backwards (toward rear panel) at same time
until it clears cabling at main frame floor level.
REPLACEMENT
Reverse the removal procedure.
6-86
