| Posted: Monday May 31st, 2010 04:20 am |
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| Posted: Saturday Oct 27th, 2012 01:03 pm |
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2nd Post |
alex2012
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| Joined: | Sunday Sep 16th, 2012 |
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hi its about echo problem
I have done the following :
1) As per the engmanG2.pdf, J53 should shunt across 2 & 3.
and this should be factory setting, however if circle mark is on pin 1, then it was wrongly shunted and i shunted it to away from circle mark ( to 2 & 3 )
2) I have latest firmware, also followed your posting to update tuning parameters by selective write from default template and then read back to my cclx file . However , i still have the echo problem on DS02 and also on KP06 and KP04 when a remote phone is involved.
e.g.
1) when somebody presses the door bell while in AWAY mode , the system calls my mobile and i can hear clearly on my mobile the visitors voice , however the visitor at door station hear too much echo .
2) if somebody calls and comfort answers the call , the voice of caller is on Keypads and it echoes a lot .
The other communications like KP04 with KP06 , HOME PHONE with DS02, KEYPADS with DS02, these are working ok .
thanks
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| Posted: Saturday Oct 27th, 2012 01:42 pm |
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3rd Post |
ident
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| Joined: | Wednesday Aug 9th, 2006 |
| Location: | Singapore |
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So the problem is with remote phone to Keypad and DS02. The DS02 and KP side is too loud
Howling occurs when the loop gain is too high, This can be phone to DP or DP to Phone
Try reducing the value of Tuning Parameter 87 Remote Phone Line In Gain to KP/DP Intercom default value is 13. Reduce to eg 9 and see if the howling is reduced but voice on DP is still audible
Also there is a hardware adjustment on DS02 speaker, That is normally midway, try to reduce
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| Posted: Wednesday Jan 6th, 2016 03:24 pm |
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4th Post |
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