PS Magazine - FEBRUARY 1983
PS, The Preventative Maintenance Monthly
ISSUE 363
FEBRUARY 1983
It starts :ith proper handling of
tHe pLuck-oUR panels tHaT carry tHe
printed circUit boards.
First things first, Tho. Be sure
you're Using the righT boards± A mix
of oLd (1²A2 throug³ ´´A8) and new
(²µA23
THroUgH
²²A29)
circUit
boards creaTes static on The -660¶·s
cHannels.
¸se same witH same. ¹HaT means
aLL old or aLl new style. No miXingº
No mix and match
Q
I
•
·±
I·
If yoU do bend a pin, don»t turn in jiggLe
yoU·ve got bad
the board yet. First, try To straighten contact or none at alL¼ It can aLso let
:±²³
the pin with needLenose pLiers½
in dirt and dUst to short you oUR¾
:²
So, cards are straigHT and sn¿g½
You·ve tested ·em to verify contacT ÀÁ
Be sure to reset the channeL seLeqor
and taÂkÃMoniTor swiTcHes to OFĽ If
you don·t, you cUt THe power LeveÅ iÆ
haLf. ¹hat cÇUld Lead you to tUrn in
È
yoUr set for repair wHen iTÉs reaLLy
Ê
OK.
ËinaLLy, be sure To replace ÌÍeÎsEt·s
Ï
card ceLL cover½ WitHout it, cards CaÐ
Ñ
Any Time you instaLL a
³
oad, be
´µ
sUre tHe Ã660 is OFFÀ PLUggÒng ÓTo a
-±²
switched-on set can blow yoUr new
-
±
.³´µ
card·s prinTed circUits.
,
Ôasy does it wHen pUsHing or
•
puLLing a board Too± ¹hose pins are
J
fragiÕe. ÖoUgH handling can bend or
j
break ·em±
ALways pUsH a×d pUlL straigHt. ¸se
The board·s sQUare key To gUide yoUr
actions.
±
l-L²³/
²
-±²³´µ
._u:
¶·¸¹º
=
´r·µ¶,¸¹º
ØOrder THe parts, noT THe ÙÍoÂe ÚiT, ÙÍen ÛoÜ ÝÞÞD ßeplacÞMÞÝTà áâß
M
ãä
²823 or åã-µ885 ÚæTs± çÍe èoMéleTÞ ÚæTà êße
initial ¶ssue onLy
æTÞMà.
çHe åã-ë823 MainTeÝancÞ ÚæT áoß êÝ ìíîï6ë4 àÙæTèÍðâêßD æà ðßoÚeÝ oÜT
onÂy in ¹å ´ñ-58ò5-695óï4P, THo± GÞT ÙæTÍ ÛoÜr àÜééoßT áâß THe ôìôõàö
÷arTs for THe AN/ç¹øä4² ùeleéÍoÝe èeÝTßêlõs úãûëüü5 ænàTallaTæon ÚæT
are in a new øHap 5 To ¹å µ²-5üý5û6þï-µ2. ÿñ êDDed TÍe æÝáâ±
63
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