T M 9 - 4 9 3 1 - 3 8 1 - 1 4 & P - 2
FRAME 5
Remove Electron Tube, Retaining Strap, and CRT Support:
A3P1 (1) and A3P2 (2) leads contain voltages that may cause death on
contact even when test set power is off. To avoid electric shock, connect
housing (3) to facility ground. Ensure no part of body touches metal while
removing leads. Remove leads and touch exposed leads to chassis.
1.
2.
3.
4.
Unscrew and take off electrical lead A3P1 (1) and lead A3P2 (2) from power supply (4).
CAUTlON
Jack screws (5) will tighten or loosen only one side of electrical plug
connector A3P3 (6) at a time. To avoid cracking plug A3P3 (6) turn jack
screws alternately.
Loosen alternately two jack screws (5) holding plug A3P3 (6) with flat tip screwdriver.
Take off plug A3P3 (6).
WARNING
Electron tube assembly (7) is breakable. To avoid injury and damage,
handIe electron tube assembly (7) carefulIy.
Unscrew and take out two machine screws (8), lockwashers (9), and fIat washers (10)
with cross tip screwdriver. Get rid of Iockwashers (9).
Remove retaining strap (11) while holding electron tube assembly (7). Look at strap (11)
for cracks. If bad, turn in strap (11). If OK, set aside for later use.
.
GO TO FRAME 6
2-170
Volume IV
Para. 2-8, Tusk 5
