Sharp AQUOS LC-40LE814E

52
RS-232C port specifications
PC control of the TV
• Whenaprogrammeisset,theTVcanbecontrolled
fromthePCusingtheRS-232Cterminal.Theinput
signal(PC/video)canbeselected,thevolumecanbe
adjustedandvariousotheradjustmentsandsettings
canbemade,enablingautomaticprogrammed
playing.
• UseanRS-232Cserialcontrolcable(crosstype)
(commerciallyavailable)fortheconnections.
NOTE
• Thisoperationsystemshouldbeusedbyaperson
whoisaccustomedtousingPCs.
RS-232Cserialcontrolcable(crosstype)
Communication conditions
SettheRS-232CcommunicationssettingsonthePC
tomatchtheTV’scommunicationsconditions.TheTV’s
communicationssettingsareasfollows:
Baud rate
9,600bps
Data length
8bits
Parity bit
None
Stop bit
1bit
Flow control
None
Communication procedure
SendthecontrolcommandsfromthePCviatheRS-
232Cconnector.
TheTVoperatesaccordingtothereceivedcommand
andsendsaresponsemessagetothePC.
Donotsendmultiplecommandsatthesametime.Wait
untilthePCreceivestheOKresponsebeforesendingthe
nextcommand.
Makesuretosend“A”withthecarriagereturnand
confirmthat“ERR”returnsbeforeoperating.
Command format
EightASCIIcodes+CR
  
C1 C2 C3 C4 P1 P2 P3 P4
n Command four digits: Command. The text of four
characters.
o Parameter four digits: Parameter 0_9, blank, ?,
minus
p Return code (0DH): ?
Parameter
Inputtheparametervalues,aligningleft,andfillwith
blank(s)fortheremainder(besurethatfourvaluesare
inputfortheparameter).
Whentheinputparameterisnotwithinanadjustable
range,“ERR”returns(referto“Responsecodeformat”).
0 0 5 5
1 0 0
0 0 0 9
0
When“?”isinputforsomecommands,thepresent
settingvalueresponds.
? ? ? ?
Response code format
Normalresponse
O K
Returncode(0DH)
Problemresponse(communicationerrororincorrect
command)
E R R
Returncode(0DH)
Connecting a PC