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Topic:
Denon RS232 no action
This thread has 13 replies. Displaying all posts.
Post 1 made on Thursday August 9, 2007 at 03:43
yoda98mnt
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9
Hi,
I habe a AVR-4306 and I will control ther AVR with a RP-6 connect with a CM-232.
I send "PWSTANDBY\r" from the T2-c, notthing.
I conect the AVR with my PC (RS232, wenn a turn off the AVR I can see that the AVR is going down. To view the RS232 i use SerialTool. What must I do to activate the RS232 in the AVR-4306?

Gruß Volker
Post 2 made on Thursday August 9, 2007 at 22:58
tgrugett
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On August 9, 2007 at 03:43, yoda98mnt said...
Hi,
I habe a AVR-4306 and I will control ther AVR with a RP-6
connect with a CM-232.
I send "PWSTANDBY\r" from the T2-c, notthing.

I conect the AVR with my PC (RS232, wenn a turn off the
AVR I can see that the AVR is going down. To view the
RS232 i use SerialTool. What must I do to activate the
RS232 in the AVR-4306?

Gruß Volker

You most likely will need to connect a ground wire between the ground terminal on the RP6 and the phono ground lug on the receiver.
Post 3 made on Friday August 10, 2007 at 01:27
ssfx
Long Time Member
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153
Yeah, I second the ground issue.

Your settings are 9600,8,N,1?

-Chris
OP | Post 4 made on Friday August 10, 2007 at 02:41
yoda98mnt
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On August 10, 2007 at 01:27, ssfx said...
Yeah, I second the ground issue.

Your settings are 9600,8,N,1?

-Chris

Hi Chris, hi tgrugett,
thangs for your answers, the settings are like you write.
I thing the problem is not the ground. You kan look hier:
[Link: vivateq.de]
The CM-232 have a ground pin, sorry the manual is in German "Masse means Ground"

Gruß Volker
Post 5 made on Friday August 10, 2007 at 02:53
ssfx
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153
Have you tried running a wire between the phono ground and the RP6 ground terminal anyway?

I have run into the problem a couple times before. The first time was when I did a setup without a mid Atlantic rack. I had used this setup many, many times before and never had issues. (but never without a rack). Drove me nuts trying to figure it out. Then someone told me about the grounding issue. In the previous setups the rack had acted as the ground between the RP6 and the 3806. I ran a ground wire between the two and BOOM! Like magic.

Pin #5 (the ground) on the CM232 does not ground the two components together. Some of the Denon receivers are lame that way.
Post 6 made on Friday August 10, 2007 at 03:08
tgrugett
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On August 10, 2007 at 02:41, yoda98mnt said...
Hi Chris, hi tgrugett,
thangs for your answers, the settings are like you write.
I thing the problem is not the ground. You kan look hier:
[Link: vivateq.de]
The CM-232 have a ground pin, sorry the manual is in German
"Masse means Ground"

Gruß Volker

The grounding issue is documented clearly in the RTI CM232 configuration bulletin available for download on their site.

[Link: rticorp.com]
OP | Post 7 made on Friday August 10, 2007 at 04:00
yoda98mnt
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August 2007
9
On August 10, 2007 at 02:53, ssfx said...
Have you tried running a wire between the phono ground
and the RP6 ground terminal anyway?

I have test a wire between the bottom of the Denon and the PR6 there is a little nut,
but also nothing :-(

Last edited by yoda98mnt on August 10, 2007 11:45.
OP | Post 8 made on Friday August 10, 2007 at 07:15
yoda98mnt
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9
On August 10, 2007 at 03:08, tgrugett said...
The grounding issue is documented clearly in the RTI CM232
configuration bulletin available for download on their
site.

[Link: rticorp.com]

Hi trugett,
I have now access to that side. Can you sent me the Document to my E-mail Account?
Post 9 made on Friday August 10, 2007 at 12:40
tgrugett
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If you have access to the dealer site it is available for download.

Your power standby command is correct.

Make sure that you are not in hex entry mode when entering the 232 command into the RTI 232 window. Make sure your Baud rate and Parity settings are correct.

Do not use a null modem adapter or extension cable.

Make sure a ground wire is connected from the RP6 ground terminal to the phono ground lug on the receiver OR to another positively grounded point. You said the ground wire was connected to the bottom of the receiver. Are you sure you are making good contact?

Make sure you Power the receiver on Manually first and then issue an off command via 232

If you follow these steps it should work fine. If you followed them correctly and it does not work perhaps there is an equipment issue with the receiver or the RTI gear.

These issues are discussed in this post.

[Link: remotecentral.com]
Post 10 made on Saturday August 11, 2007 at 01:01
brandenpro
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1,651
Dont use the extender cable that comes with the RP6, those are for IR only.
OP | Post 11 made on Saturday August 11, 2007 at 14:10
yoda98mnt
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9
Well, thank you for your help it ist working :-)))))))))))))
At the RP-6 is a Port "Ground" there I put the wire an the other end on the bottem of the AVR-4306 and ... like Magic its work :-))))
Post 12 made on Saturday August 11, 2007 at 15:23
ssfx
Long Time Member
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153
Yeah baby.

tgrugett and I rock. Another home theatre mystery solved!
Post 13 made on Saturday August 11, 2007 at 17:13
tgrugett
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...funny.

sometimes you just have to say it a couple times before it sticks.
Post 14 made on Sunday November 24, 2019 at 10:51
msmoran
Long Time Member
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April 2004
19
RS-232 is bulletproof with Denon AVR's. You need to check the communication protocols for the RS-232 and set them as per Denon's procedures...9600 Baud, etc.


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