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balisingh is offline balisingh
2012-03-28 , 17:44
Posts: 278 | Thanked: 114 times | Joined on Jan 2010 @ SD, CA
#11
i looked at the schematic, the fmant comes out of the headphne amplifier. it is hooked up to the same lines as headphone output transformer. i dont know the model no of headphone amplifier and BOB. if we can find datasheets for the headphone amp it would be helpful. Bob it seems like is the WLAN/BT chip some of them support FM output.

Interesting, in the schematic, there is no picture of the Top. Only the bottom.
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Last edited by balisingh; 2012-03-28 at 19:36.
 

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dumpystig is offline dumpystig
2012-03-28 , 19:12
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#12
The FMANT is the input from the headset lead for an integral radio receiver - it is not for TX purposes.
 
balisingh is offline balisingh
2012-03-28 , 19:24
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#13
There are WLAN chips that support FMtx, do you know what part no is in the N9?
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balisingh is offline balisingh
2012-03-28 , 19:49
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#14
I found the part no. its TI wl1271 from the "aircrack" thread. Its solds as a "wireless connectivity solution" by ti. I found some promising signals stuff here.
http://processors.wiki.ti.com/index....ivity_Platform
Specifically:
FM Antenna FM_RX_ ANT To an FM antenna on the board RF connector
FM Antenna FM_TX_ ANT To an FM antenna on the board RF connector
So only one ANT input is shown on the schematic. If this a BGA type chip, and the TX_ANT was left unconnected it would be impossible to mod it in. Besides audio input signals and control and such.

i dont see this signal listed on the schematic on page 7 on N6301, its not a common practice but since its a "service" schematic, it may have been left off.
BTW, that CAN halfway down in that above picture is under where the wifi lies.
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Last edited by balisingh; 2012-03-28 at 20:14.
 

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Rusnak-COBRA is offline Rusnak-COBRA
2012-03-28 , 20:15
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#15
FM Antenna FM_RX_ ANT To an FM antenna on the board RF connector
FM Antenna FM_TX_ ANT To an FM antenna on the board RF connector

But, as I have read somewhere here in forum about FM TX, someone said that there is no antenna for TX, just pinout. Donno if I am right...
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