| Post 21 made on Friday January 9, 2009 at 14:05 | ...it's new! |
Jon Welfringer Long Time Member |
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| On Friday January 9, 2009 at 13:11, lscolman2 said... |
OK, I've managed to track what's preventing it working.
I have two devices connected by RS232 serial connectors.
Pulling the connectors from the rear of the RFX9600 and the minijack works?????
Anyone seen anything like this?
Cheers, Lee |
Yes, I've seen this exact thing - just last week!
I originally had my Denon Amp & DVD player using a mono 3.5mm cable daisy-chained from an IR port (RFX9600 --> DVD --> AMP). I then wanted to move on to using serial for the Amp, but keep the DVD using the hardwired IR. I could not get the DVD to work with hardwired IR while the amp was connected to the serial port (the amp and DVD were no longer daisy-chained - only the DVD was using hardwired IR). My testing showed that unplugging the serial connection allowed the DVD to work with hardwired IR, but while plugged in it would not. I really wanted to use the serial connection for the amp so I just resolved to use an emitter on the DVD player.
This appears to be some kind of a hardware bug in the RFX9600 to me. |
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| Post 22 made on Friday January 9, 2009 at 14:53 | ...it's new! |
Barry Gordon Founding Member |
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You're saying that with something plugged into the serial port, the IR port still puts out IR (an emitter works when plugged in there), but if you remove the emitter and hard wire it to the DVD it does not work?
It sounds like there is some sort of voltage/current problem with the IR port on the RFX in that it puts out enough to drive a standard emitter but not enough to drive the DVD's hard wired Interface when the serial port is in use. |
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| Post 23 made on Friday January 9, 2009 at 15:34 | ...it's new! |
Jon Welfringer Long Time Member |
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| On Friday January 9, 2009 at 14:53, Barry Gordon said... |
| You're saying that with something plugged into the serial port, the IR port still puts out IR (an emitter works when plugged in there), but if you remove the emitter and hard wire it to the DVD it does not work? |
Exactly!
| It sounds like there is some sort of voltage/current problem with the IR port on the RFX in that it puts out enough to drive a standard emitter but not enough to drive the DVD's hard wired Interface when the serial port is in use. |
Yes, as odd as it seems, this does seem to be the case. |
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| Post 24 made on Friday January 9, 2009 at 17:22 | ...it's new! |
lscolman2 Long Time Member |
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Hi,
Yes, that's exactly what's happening. Standard IR emitters are fine in conjunction with the RS232 cables in place. When using minijack 3.5mm direct cables, they don't function.
I've e-mailed Pronto support, but could someone with a bit more weight than me report the problem.
This explains why people have had to use the IR emitters from the RFX9600 into 3rd party receivers then onto the minijack ports of devices.
Glad to have bottomed this one out. It really was driving me crazy!
Cheers, Lee |
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| Post 25 made on Friday January 9, 2009 at 17:31 | ...it's new! |
gopronto Regular Member |
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| On Friday January 9, 2009 at 17:22, lscolman2 said... |
Hi,
Yes, that's exactly what's happening. Standard IR emitters are fine in conjunction with the RS232 cables in place. When using minijack 3.5mm direct cables, they don't function.
I've e-mailed Pronto support, but could someone with a bit more weight than me report the problem.
This explains why people have had to use the IR emitters from the RFX9600 into 3rd party receivers then onto the minijack ports of devices.
Glad to have bottomed this one out. It really was driving me crazy!
Cheers, Lee |
This is somthing you can try does not always work.
Get a 1/4w 100 ohm resister and put it in the negative side (ring) of the 3.5mm to 3.5mm lead, some time this is enough to of set the ov levels... |
Pronto lead the way and the rest follow.... | [ Reply | Quote & Reply |
| Post 26 made on Saturday January 10, 2009 at 11:18 | ...it's new! |
lscolman2 Long Time Member |
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Hi gopronto,
I've just ordered some of those resistors from ebay. Do I just install them in line on the ring cable, and are they polarity sensitive?
Do you have any contacts at Philips to raise this issue with them?
Surely we shouldn't have to mess about to this level to get minijack cables working!
Cheers, Lee |
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| Post 27 made on Saturday January 10, 2009 at 13:18 | ...it's new! |
Barry Gordon Founding Member |
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| Resistors are not polarity sensitive onlY LED'S and electrolytic capacitors are |
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| Post 28 made on Saturday January 10, 2009 at 13:21 | ...it's new! |
Lyndel McGee Loyal Member |
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| Wow, resistors from ebay? Guess I am spoiled. I just go to Radio shack and pay less than $1 USD for 5 of them. |
Lyndel McGee
Philips Pronto Addict/Beta Tester
View EscientPronto 1.0.2 Docs - http://www.mediafire.com/do...hp?yyfzfzzok5z | [ Reply | Quote & Reply |
| Post 29 made on Saturday January 10, 2009 at 14:41 | ...it's new! |
gopronto Regular Member |
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| On Saturday January 10, 2009 at 11:18, lscolman2 said... |
Hi gopronto,
I've just ordered some of those resistors from ebay. Do I just install them in line on the ring cable, and are they polarity sensitive?
Do you have any contacts at Philips to raise this issue with them?
Surely we shouldn't have to mess about to this level to get minijack cables working!
Cheers, Lee |
The resistors are not polarity sensitive, and its the manufactures of the equipment who need to sort out there 0v and grounding ,or make the IR inputs opto isolated, so there is no conflict between 0V and Ground (earth) which are not the same.
The trouble is the "D' shell is connected to ground on the rs232 lead,which may not be the same DC level as pin 5 (0v), now at some point the ov on the IR lead gets connected to the Ground and that is when all the troubles start :)
The 100 ohm resister is to get around the DC offset , this does not always work but its worth a try as it is a very cheap solution.. |
Pronto lead the way and the rest follow.... | [ Reply | Quote & Reply |
| Post 30 made on Saturday January 10, 2009 at 15:21 | ...it's new! |
lscolman2 Long Time Member |
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Hi Lyndel,
I don't think I was robbed...
http://cgi.ebay.co.uk/ws/eBayISAPI....X:IT&item=260305950855
Hi gopronto,
Thanks for the info. I'll give it a try when they arrive and let you know if it sorts the problem.
I'm guessing by your response, that this isn't something that Philips can fix with a firmware update, as it's a phyiscal issue with the hardware.
Cheers, Lee |
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| Post 31 made on Tuesday January 13, 2009 at 08:14 | ...it's new! |
lscolman2 Long Time Member |
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| On Friday January 9, 2009 at 17:31, gopronto said... |
This is somthing you can try does not always work.
Get a 1/4w 100 ohm resister and put it in the negative side (ring) of the 3.5mm to 3.5mm lead, some time this is enough to of set the ov levels... |
Hi gopronto,
I've received the resistors (100 for £1), so I've got a few spare.
The minjack diagram here:-
http://en.wikipedia.org/wiki/TRS_connector
doesn't seem to indicate a ring on a mono connector, only on a stereo connector.
Can you confirm which part of the connector needs to have the resistor applied to?
Thanks in advance
Cheers, Lee |
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