Sharp PC-4741 Service Manual page 41

-
------__ ~_R~74b~. ------------------------------------------------------------
• Error message
*
COMMUNICATIONMobE'ERROR . "
.... SIQ test is niade With themadem card (CE-451M),domrtiUflicatioli
mode set to Modem mode.
*
COM1 (or 2): BAUD RATE = xxxObps - <Error Rind>
I
DunnQ
COM1J(~rJ2)baud,rat~,p.~ram,eler qhe~,k,.
th,eerror
d[~-
played in <Error kind> occurs.
: . ! . '
*
COM1 (or 2): PARITY, STOP BIT, WORD LENGTH = x, y, z -
<Error kind>
Dunng COM1 (or 2) parameter check, when pariiy, sto'p bii, and
word length are respectively x(" n"ne:add,
or
even), y
(=
a or 1),
z (= 7 or 8). the error displayed lri'<Efrllr"kind> occurs.
:i(
COM1 (or 2): CHARACTER TRANSPORT - <Error kind>·· .
Dunng COMt (or 2) character transportcheck,Jhe error displayed
in <Error kind> occur$. "
<Error kind>
1:
J __ ,.:'-"
• SD TIM,IiOO,UT", ..
" J , . .. . . ,. . ' '.
Response to the transmit data is not fouod ,within the prescribed
time. . . ' . . , ' , ,.
RDTIM_EOUT
Response to the receive data is not found within the prescribed
time.
• TRANS REG NOT EMPTY
The transmitter shift register failed to go. empty.
OVERRUN ERROR
Character is received when the receive buffer is fully occupied with
characters.
FRAMING ERROR
O'
is fourid
for tHe stop bit:
PARITY ERROR
A parity err6r', i~' met.
.
.
,
• DATA COMPARE ERROR
Received data did not match with t~e transmit data.
a-5-s_
Modem Check
Withthis test program the modem (CE-451 M, CE-462M) is tested
aft~r settil)g,~~e r!lI)d~m'
ir)tElrface'to the loopback test mode.
If the serial port adapter (RC-232C or modem) was not installed when
this
progr~m
is crosen, the
follo~i,ng, .messa~e
is displayed.
Serial Port Adapter is not installed.
If the serial 1/0 card (CE-451 B) was installed, the following message
is displayed.
Modem Adapter is
not
install~d.
If the mode is not for the modem even though the modem card
(CE-451 M, CE-462M) was installed, the following message is dis-
played.
8e_t Communication Mode to Modem.
In this event, the mode must be set
'~o
the modem"at the setup menu
with the individual devices diagnostic menu displayed: -.
The following sub-menu
is
displayed when' the modem adapter
'IS
installed. Depressicjn of 1 starts to testthe'rylodem. Depression 'cjf 0
caUses the control to return to the individual deviceS diagnostic
meliu~
Modem Check
1 ,- Loop back check
a --- Exit
Enter your selected number:_
Modem Check Menu
-40-
• Loopback c h e c k ,
This program :i8"
used·
to tSs(the"mode'ni
by
sending and' receiving,
'tHe
data with the modem interface set in the ioopback
tesrrrt6de.'-' --,:---'
First, the commuriicatkm paraiiletet must be' set at-the;setup:iiiahu: '
The modem is tested in the following order
~fter
the, test is
start~d.
1. The modem interface is set in the loopbacK test'rh-ade.
2. Using the
parc;1I:TH;~t~r"ch9~,en jn;,~he $~1up,_m.elJ.ulJhe,fe:st
det.;!, 0
thru 7FH are sent and received to verify.
'j ',;, , , " i 1 , " ' , ' ,_ j'
,
i, },,'
3. The control returns
to
the command mode t6 be ready:"t9I.tbe
initial setup. -
• Error message
COMMUNICATION MODE ERROR
Modem test is made with the modem card (CE-451M) communica-
tion mode set to Modem mode.
• COM1 (or 2): LOOP BACK - <Error kind>
<Error kind>
• SDTIMEOUT
Response to the transmit data is, not found within the prescribed
time.
• RDTIMEOUT
Response
to
the receive data is not found within the prescribed
time.
• TRANS REG NOT EMPTY
The transmitter shift register failed to go empty.
• OVERRUN ERROR
Character is received when the receive buffer is fully occupied with
characters.
• FRAMING ERROR
o is found for the stop bit.
PARITY ERROR
A parity error is met.
• DATA COMPARE ERROR
Received data did not match with the transmit data.
8-5-10. Liquid Crystal Display Check
This program tests the LC display function by displaying the LCD
t~st
pattern on th@ screen, If the, display mode ,and the sys~em, console
are
n~t,se~
up to
9G~, th~
fo!iowin$l mess'age is displa}Ied.·
Set Display Mode to Graphics and Cpnsole to CGA.
In this event, set the display mode to graphics and the system con-
sole to CGA at the setiJp menu with the iridividual devices diagnostic
menu displayed. If the display mode has been sefto graphics and the
system
con~oJe
to
eGA',
the,'following sub-menu is displayed.
Choose and type the desired item number.
Depression of 0 causes the control to return to the individual devices
diagnostic menu.
J • • •
Liquid Crystal Display Check
1 --- Check pattern
2 -- Line move
3 -"- Stripe
o
~--' 'Exit
Enter your selected number:_
Liquid Crystal Display Check Menu
Check pattern
This program displays the check pattern on the display.