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TM 55-4920-383-13&P
x.
Using AN/US M303A set to R x 1, check continuity of flat cable assemblies (56, 59, 63
and 64), pin 1 to pin 1, pin 2 to pin 2, etc.
Install flat cable assemblies in accordance
with tags on cables.
Perform alignment procedures
y .
Install instrument. and panel
24 screws (29).
NOTE
(para 4-14) before proceeding to step y.
assembly (65) in combination case (33) and secure using
NOTE
Perform checkout procedures (para 4-4) before proceeding to step z.
z. Stow adapter cables (34 through 50), and BNC tee connector (51) in storage compart-
ment of combination case (33).
aa. Store power cables (52, 53 and 54) in cover of combination case (33).
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ab. Install cover on combination case (33) and secure two latches.
4-14. Alignment.
Alignment is to be accomplished before the completely assembled chassis is installed in
the case.
a. Power Supply A5.
(1) Using cable W1, connect Test Set to 115 vat, 400 Hz power source.
(2) Set POWER ON/OFF switch (20, figure 2-1) to ON and RESISTANCE FUNCTION
switch (11) to A-B position.
(3) Connect digital voltmeter (-) to GND test point on power supply board A5. Connect
(+) had to +15V test point on power supply board A5. Adjust potentiometer A5R2 to obtain
reading of +15.00 vdc on digital voltmeter.
4-31
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