PS Magazine - JANUARY 1973
PS, The Preventative Maintenance Monthly
1973 SERIES, ISSUE 242
JANUARY 1973
HOoULAT±
fuRN-In
Turning In a faUlty MD-239A/GR modulator from yoUr AN/G±C²26D radio
InstallatIon?
Specify that you want eIther the modIfIed MD-239A/G± (MWO 11-5820-256²
35/1) or a plain MD²239/G±³not the unmodified A model, ´hIch can't be µsed with
the AN/G±C-26D setuP.
¶F you·re aBout ¸o slIp the ±T-323 or
±T¹44º receiver¹transmitter into its case
in the AN/V±C¹24 or AN/T±C¹68 radIo
sets, first Be sure the subµnit connector
wire clIps are properly locked.
»lapping clips prevent replacement or
removal of the ±T µnIt ¼½½ and damage
T¾ke yo¿r ÀE¹Á6 )/à muLtimeter, OK?
Add ¾ feÄ Bent or cracked Årobe tips, right?
ÆHÇÈdaya got? A tester ¸Hat·s a no²tester½
So¹É¹É¹É¹É¹É ½ÊË
ÌonÍt LeÎ the ÅroBe FLoÅ B¾ck against tHe Face
ÌoÏÐt Ñoss tHe ME¹26 on a shelF witH proBe
ÒangÓiÔg ÂÕr any Õ¸her ÄayÖ¼
Avoid r¿sHes ¸Ha× coµld cause yoµ Ño ÅloÅ the
mØÙer ÈoÄn on ¾ ÅroBe anÈ Bend or breaÚ ¾ ÙÛŽ
34
')
'
1
.±² _³
Accidentally actIvating the moµnt position swItch on yoUr AN/»ÜN²40 radar se¸
can cause you all kInÈs of proBlems¼
The solUtion? Ask your DS ¸o order and Install a gUard switch, »SN 5930-9Ý5²
3356, Þart
No¼ MS2ß225¹º, throUgh
reguàar sUpply channels.
áave DS stencil the letters CCW
¾Bove the guard swItch on the left sIde,
and CW on the rIgh¸ sIde of ¸he swItch
âuard, facIng the control panel ¼½½ ¸o reã
Ålace ¸he markIngs ¸he g¿ard blo¸s out½
äo reÈucå FaiLure of Ñhe homing circµit
on tHe AæA4A2 circuiÑ çoard, maèe sure
,r
yÕur
éN/Aê빺º4·s
ìomIng¹antenna
±
c¾Bles are insÑalleÈ on the rigHt jacks½
é miscueÈ insíallîÑion oF a caBLe on
Ñhe J2 Ñr¾nsmit¹receive jack can cause
circuit Bµrn¹out½
ïonnect the leFt homing ðnÑenna caBlñ
to the Jò óack
ô
aÔÈ the rigHt Homing anõ
tenÔa caBLe Ño the ö4÷
35
cC
MOUNT PoS
®
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