Real Time Clock Diagnostics - Sharp PC7000A Service Manual

If [[ESCll or [[.,I]] is is entered, control existS to:ithe
LCD test menu (Figure lCD·l).
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The area in which test is to be executed is given below.
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6 REAL TIME CLOCK DIAGNOSTICS
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The REAL TIME
Cl0CKElli"lGN0Sl'ICS:prci'g,a'rrH~rves
to test the function of the clock (refered to as ClK in the
following explanation) of this personal computer;· '
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persoi'i-al-'
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-cori#iu:te
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: it causes the clock to go wrong and the \batlery: :
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(1.1) Test Menu Display
When this program' ,is started up; the"system, ,checKs,,the
batte,y
.a~d'
internal.
RAM'~chips.
,If ,thesyslem detects .an
,-error,
',itl·disP,lays
aJ11~rror JnessaQe.
,At
theJti[l1e',
by; pressing
[[ESC]] or [[.,I J
1. contrQI.e~its,tQ th"DI~G
LOADER,
When the system does not
dete,q1),a~'erro,:"it:
displ'ays the
. titl~ }nd",c\O?~ ~~jt r;ne~,~a~~hp",~JpFigure, C,LI<·1. This
i;'iti:ar~!atr ~s;~~~e~.:F~
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SHARp"Personal Comf1l1tei SyStem Diagriostics leveL3
.
,
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,
Date Jul/01 /'85
Real Time Clock [1.0]
(0) Clock reset & set
" • I . ,
"(r; €:ic,
l
ck t~ad"i '
.
(21;'ClocJ(
j
adjus1:ment'
(3) RAM display
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Figure ClK.l ClK
Test' M iinu; '. ,,"
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(12) Selection of Test Menu
) T
E.nter:the1required test
numb~Dofl.the test-menu~asjfQ.lIgWs:
U!![[O]] ;0 [f311'(Migit)
+'[["1
l:(When"pecifylngl[Ot]] ,
1 - '
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t
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01
press_'
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Lon V:oJ
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The number being entered is displayed on the screen. Wilen
pressing [[.,I]], the specified diagnostics program is
started up.
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To change the test number, delete tfieriuhilJi,r6ein~Jeri,ter.
ed by using [+oll and then enter the: i:orrec~ n~mber.
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(1.3) Existing Test Menu
When [[ESCll is entered before enteriiig1f'otldW&d;)by
"':(f.,n;c'On'tj!dl)~xitsJtdth~
o
IA{;l[!()}>;DER".
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fJ'J.J'i/
-10-
(1.4) Others
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Parameters of each test prog'f'am
;':are:)\ie'nter~d
tHrb'ugh
) 'lOLKeY's'.j"'[[''-'J PiiWheh,!eaclh 'fes\Jprogram',is;called} by
i
iii~s~iiig'J:nEScH;I'boritroF,iex1t§::to~ttte
,CLK
test"m~nu
(Figure ClK>1"";VyJS1.>i
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.:L~in-)\Ji1.
"(2)
D"lisctjltlollof
Pragran""
"(2.1)1 CIDeR Reset&S&t' ,,,'
(2.1.1) Outline ',! .
This program serves to set datei'{vea-r"mbhthrand,da-y') and
:: time-i"lhdUH
mliiut;eti-'ahifset:tind)::and~then
to'displ'ay)time
' ;
D~rrig s~1i
andrthetci..irrent time;l; ,
1\
. 'Dalf', arid,tiri\'e'caii ibe'se!
in
·,th'e'rarlge df"Janua,y,k 1980
00:00:00" to "December 31, 2079 23: 59: 59".
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Date and time are directly written and read'to' and"Jrom the
hardware.
(2.1,2) Operation
When
s~ecify.ing
this test, eDter t,he prop:er:
da,ta't~
J:frbrnpts
di'splay~d
Sequentially
~s'shdwhiiil' 'F1gtl~reiC~K.2t:"
1
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(a) Test
(a.1) Date Data Set (1)
Specify year, rrll'hth, and
day.
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Set year, month, and day (YYYYMMDD) where year
(YYYY) is foli, digits', 'indrith
I
(MMI'
istw,jJdigit~,
arid day
(DD) is·tWo'digits,: Note
'tli~'t!th~
teii's
digitsdfm"l'ithi~nd
c
&\1'
flDD
)iltW0,'digit~c
Not,,,'that: the ite'n's, digit.
i)~
imamh
and day should be filled
withz.,oJWh~nithe"rhbhtti
:number
is in the range of "January"
to'."Septemher:~;
ahdwhe'-n the
1:
day~number iSji.FI;theJahge,-DJJ~~1J~lto;,~m·l.
_i)
~1:J'!sk_l?iU
2i
• FQtJiixamjll.;
i
whe'lI'specifying: th
e;
dakot
Septem be, 19,
: 19.85,;
enterl;'19850909'(J~lt
date, i,"imprope,ly' specitted
(such as February 30), the system cancels such data entry
and inquires data entry once again.
(a.2) Time Data Set (2)
'n' •
Specify
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