Sharp PC-4741 Service Manual page 45

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-
--------~£~4U1~.
__
------------------------------------------------------~-----
·---Drivef
nof
ready ---- -- --
· The device being specified was in the not ready state. ,
, --Record" notfound
The
sector
specili~d
iii
the
It) iierdcotildbotbe
d~teqted:rr\
ttYetrack
• DMA boundary
error ,
DMA error"Cross 64KB boundary.
• Write protected error
The system detected write protection.
~ ,~ee".f!.rr.qr:'
"~I
_,
,-,
'I.
" I
'
Shoy.,s ttle
occ~~r~~ce,.o(~_ err9~.9.vripg ~~~k;;::._
,,,_",,
• '
'~Bad'c'ontroHer
,-
-.'1: _'
, •• ,
I 1 -',
-.
i~
Shows the occurrence of any abnormality in the controller.
":""',::
-0
• -
::
. : ' :".: ..:-::
'_',:~ ,:_~
) : " ,
>,--;
_., .. , ..
~-
.. -_.........
_~,::~_a~a~~.r~~sma~ki;:,
_ --_: . -' ,
::
' , i . I ' _
prows
_th,~ ~,cp~rreri~~,9f
an
addre~s rn~rk.~ead
error.
• BadCRCerror
,"-'
.1;:
'J
] ' , " - h
Show's' the"occLirrence:of a CRG "error"during data error; .
• Bad command error
A commancf"was
"speclfled whIch was noflii
sIos.
,. Compare error
_ , .. , "
'"
Data being wotten did not accord with daia being read.
~ ",Ot_~e~se~ror,
_' " _
,
-.
Showsjhe.6bcu.tr~nce
of qther errors not describedapove.
8-5-13 •. Hard disk drive diagnostics
This program tests the hard disk dove. '.
The following menu appears when" this
t~st
program is seiected.
Molie
'lne
highlighling to the itein you wanf 10 . seleqt, and press
ENTER.
Depre$~ion
of ESC terminates the test.
..
.....
.
. .
..
,
.
,
,
.
Hard Dls.k Drive Diagnostics
!
Drive type 'check '
·Write,
r~ad;&'compare-check
Read,onlycheck
Random seek check
; Iilump and Patch
,', Disk controller cHeck
Error table display
8-5-13-1. Drive type check .
This! test'Item checks, the 'spedfication of the· drive if-'tlie drive is,
ready:;' The capacitY, 'cylinaer"hutnbers, head numbers and sector
numbers are displayed.
• Operation
Depression of any key terminates the'test.
8-5-13-2. Write, read & compare check
This item checks the write/read operation.
The system writes the specified data to: the hard disk, reads the same
data from the floppy disk, and then compares them.
rne _sp,eci~~d data,
tq,
be \yritten is
OOH
to FF~-t Increm~nt pattern
when the
'pa~s'
count is
0,
otherwise the data, is 2bytes. repetitive
pattern of "CB33".
'
.
• Caution
When this test is executed, all _the contents stored in the disk are
!
destroxed.
S~
pe
~ery
careful, with this test. '
• I'
operation':
Specify the range of cylinders to be checked in the following mes'-
sage.
Cylinder range?
[000
<->
964J
= III - III·
-44-
Type the starting CYlinder numb-erat firSt ahd
pr<fs~ENTER.
' J lj"n
typethEi:el1dil1g cylinder. nuinbelandpress ·ENTER.
. . ' , ...
Specify the--:number· of_,sector
acc~ssed.
by',
one
L
instriJt1io'rtl ii;·
-the
following message.
..
~
,:
1
~ector
count?
, __ .[01 .... 17J
~II
TYpe the sector count in the displayed range and press ENTER.
Spetify_thei'-ntirilb(3'r_of retrial-in. the following. message;' when' an: error
hc:l,$ QCQ_urred •
I
' .,
Re1ry count?
, [0'<->4J =1
"I
Typetheretiyeount in the displayed
ra~ge
and press ENTER ...
Specify whether to stop or continue the test in the foliowi'ng
~me;ss~ge,
when'an error
has
occurred;
:t,
, .. ,".
".-,',
Move the highlighting to the
mod~~
you
w.a~t:
to
sel~cit
anc!. press
~nR...
" . ' . .
. ..
Specify whether to execute the test or not
fn the
fdllowirilfinessage.
Test start? [Yes NoJ
Move tl1'l9 ~-highlighting to t.he mod~ you, wani to select and' press
ENTER. When enteri.ng "Non, 'cOntrol" exits to "specification of the
cylinder range". On the other hand, when' entering "Yes", starts the
test .
While executing the test, by pressing SPACE, the system stops the
test. At the tiine, by pressing SPACE again, the
system
continues the
test. Also by:pressing ,ESC" the, test
tertninates~
The 'depressing of
ESC is always effective during this test;
the lower left screen shows the pass count and the test point repre-
sented by physicai address as follows:
Pass count
=
Test point
=
.....
CCC.HH.SS
"CCC" means the cylinder, "HH" means the head and "S8" means the
sector.
In addition, the lower right screen shows the test mode.
Test mode: Write
• Error processing
If
the system detects an eriorwhile it executes the test, it displays the
kind of error and where the error occurs on lower right screen and
increments the right-hand error counte'r.'
'
If the error-stop
is
set to "No", the system updates the error counter
every time an error occurs and continues to, execute, the test. The
system only displays the newest error
informa~ion
in the lower right
scr~en, ,On the, ot~er: hand, if the erroT stop is s~t-to ,','Ye,s~!".the ~y$tem
stops th.-tesfi(an·erroroccurs:·At
th~
iime, by pressing ENTER, the
syste,1'I1 continues the,test.and by preSSing ESC, the test
t~rminates.
For details
ot'
error message, see'
"8-$-13-8.
ErrQr mess~g~",
8-5-13-3. Read only check
The test checks if the read operation, is normal by reading, the data on
the hard disk.
..
,. ..
...
. .
, .
• Operation
Specify the range of cylinders to be checked in. the following meso
sage:'·
. '

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