Swift :Stereo help over problem with FM

purplehaze · 25th September 2006, 14:52

Hey Guys,

First of all thanks for the inputs you gave over selecting ICE

I finally got following configuration in my car :
Pioneer 3850 HU (~ Rs 7000/-)
JBL 607C Component at front (~ Rs 5500/-)
JBL 637 Co-axial at rear. (~ Rs 3600/-)

All three of above are with B&W.

It really sound like I would like to have, but lately (since couple of days) I am noticing bit of distortion coming ONLY from tweeters, ONLY while listening to FM. The sounds is "similar to" sparking (& am sure it's not spraking) & doesn't happens too often. I tried to listen the same song which gave problem in FM through my mp3, and there it sound like charm. Problem is surely appears with FM. Any clues what could be the reason?

I would be visiting my dealer over the weekend, but thought of getting some inputs from you guys to get an idea over the problem.

Thanks Again, you guys rock!

goldsun · 25th September 2006, 15:27

It is likely that the antenna may not be installed properly. Check the antenna installation.

a4_attitude · 25th September 2006, 17:06

Quote:

Originally Posted by goldsun

It is likely that the antenna may not be installed properly. Check the antenna installation.

and its simple to check...
opne the light from the roof it has small clips in back so have to pull your side,
there you will find the wire going to antena on roof...
check the connection with ur HU
hope this solve ur issue
Cheers
Wadhwa Ajay

purplehaze · 30th September 2006, 13:08

Thanks guys. I went to the dealer today. I got the overall wiring checked (HU/ Antenna etc.) it all looked fine. He also replaced the 3850 HU with 5850 but problem still didn't go. Although he was able to convince me that distorted sound is coming from Tweeter. By swtiching tweeter off thruogh Crossover the itching sound disappeared. He was not sure over the solution. All I have decided is to reduce the treble while listening to FM.
Let me know if any one of you have got any other thoughts.

Thanks.

navin · 3rd October 2006, 09:36

the tweeter may not be at fault by switching the tweeter off all he has done is stop the noise at the crossover the tweeter (if it at fault) will distort no matter what the source is. the noise source could be before that since it occurs only on FM. try a non Pio HU. Although Pio does make great tuners I would just like to eliminate any issue with Pio "super-tuner" ckt.

purplehaze · 4th October 2006, 14:25

Thanks Navin, but I am just wondering what all I can do if Pioneer HU turns out to be problematic one? I have B&W 3850 HU & other day dealer replaced it with another 3850, then with 5850 but problem persisted. So in case if problem doesn't come with Sony HU, will B&W can help me anyway? I guess not

Another question I have is, is there a possibility that my opinion that problem is coming with FM ONLY is wrong? i.e. it might be coming with CD/MP3s as well but "hardly" noticable ... just wondering about possibilites.

navin · 4th October 2006, 15:00

Ok check the speakers out by removing them and putting them into another car or even at the dealer's demo rack (if he has one).

25th September 2006, 14:52	#1
purplehaze Newbie Join Date: Sep 2006 Location: Pune Posts: 12 Thanked: 0 Times	Hey Guys, First of all thanks for the inputs you gave over selecting ICE I finally got following configuration in my car : Pioneer 3850 HU (~ Rs 7000/-) JBL 607C Component at front (~ Rs 5500/-) JBL 637 Co-axial at rear. (~ Rs 3600/-) All three of above are with B&W. It really sound like I would like to have, but lately (since couple of days) I am noticing bit of distortion coming ONLY from tweeters, ONLY while listening to FM. The sounds is "similar to" sparking (& am sure it's not spraking) & doesn't happens too often. I tried to listen the same song which gave problem in FM through my mp3, and there it sound like charm. Problem is surely appears with FM. Any clues what could be the reason? I would be visiting my dealer over the weekend, but thought of getting some inputs from you guys to get an idea over the problem. Thanks Again, you guys rock!
	() Thanks

25th September 2006, 15:27	#2
goldsun BHPian Join Date: Dec 2005 Location: Mumbai Posts: 229 Thanked: 50 Times	It is likely that the antenna may not be installed properly. Check the antenna installation.
	() Thanks

30th September 2006, 13:08	#4
purplehaze Newbie Join Date: Sep 2006 Location: Pune Posts: 12 Thanked: 0 Times	Thanks guys. I went to the dealer today. I got the overall wiring checked (HU/ Antenna etc.) it all looked fine. He also replaced the 3850 HU with 5850 but problem still didn't go. Although he was able to convince me that distorted sound is coming from Tweeter. By swtiching tweeter off thruogh Crossover the itching sound disappeared. He was not sure over the solution. All I have decided is to reduce the treble while listening to FM. Let me know if any one of you have got any other thoughts. Thanks.
	() Thanks

3rd October 2006, 09:36	#5
navin Team-BHP Support Join Date: Mar 2004 Location: Mumbai Posts: 25,410 Thanked: 9,957 Times	the tweeter may not be at fault by switching the tweeter off all he has done is stop the noise at the crossover the tweeter (if it at fault) will distort no matter what the source is. the noise source could be before that since it occurs only on FM. try a non Pio HU. Although Pio does make great tuners I would just like to eliminate any issue with Pio "super-tuner" ckt.
	() Thanks

4th October 2006, 14:25	#6
purplehaze Newbie Join Date: Sep 2006 Location: Pune Posts: 12 Thanked: 0 Times	Thanks Navin, but I am just wondering what all I can do if Pioneer HU turns out to be problematic one? I have B&W 3850 HU & other day dealer replaced it with another 3850, then with 5850 but problem persisted. So in case if problem doesn't come with Sony HU, will B&W can help me anyway? I guess not Another question I have is, is there a possibility that my opinion that problem is coming with FM ONLY is wrong? i.e. it might be coming with CD/MP3s as well but "hardly" noticable ... just wondering about possibilites.
	() Thanks

4th October 2006, 15:00	#7
navin Team-BHP Support Join Date: Mar 2004 Location: Mumbai Posts: 25,410 Thanked: 9,957 Times	Ok check the speakers out by removing them and putting them into another car or even at the dealer's demo rack (if he has one).
	() Thanks