RS232c A/V Receiver help

Hey all, i am trying to turn on a A/V Reciever with a RS232 command using the VB6 comm32. To turn it on it says to use:

Code:

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Command code | Parameter code | CR  | Code set example
 PW          | ON            | <CR>| PWON<CR>

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And this is my VB6 code i am currently using that doesnt seem to work...

Code:

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  MSComm.CommPort = 2
  MSComm.RThreshold = 1
  MSComm.Settings = "9600,N,8,1"
  MSComm.InputLen = 0
  MSComm.PortOpen = True
 
  MSComm.Output = "PWON" & Chr$(13)
  MSComm.Output = "PWON" & vbCrLf
  MSComm.Output = "PWON" & vbNewLine
 
  MSComm.Output = "ZMON" & Chr$(13)
  MSComm.Output = "ZMON" & vbCrLf
  MSComm.Output = "ZMON" & vbNewLine

  MSComm.PortOpen = False
End If

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The reciever never turns on. What could i be doing incorrectly? I checked to make sure the com port was 2 and it is.

The PDF of the rs232 commands can be found here for the Marantz SR7005: http://www.filefactory.com/file/b45c...ceiver_All.pdf

David

The first thing I would suspect is the comm port settings.

Baud Rate, Comport, and such. Make sure that your cable is attached to comm 2 and make sure that the device is actually expecting 9600,N,8,1

Also could be cable related. Are you using a straight through cable or a null modem?

Well for some reason i got it to work finally. I guess i needed to turn the unit on first then control it there after.

Thanks!