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Author Topic: Grounding Problem?
verik
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A buddy of mine has a problem. He just swapped out his bandp****box and amp for new stuff. During the process he told me the remote turn on lead was touching the ground wire he said the radio wouldn't work then he went back and separated them and it works fine now. Well he put in all the new stuff and now when he turns the system up loud it like is one continous b****line. it's a clarion deck and the remote turn on isn't fused on it. Do you think the remote turn on fried something inside?

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Posts: 11 | From: Three Rivers, MI, USA | Registered: May 1999  | Report this post to a Moderator
gteran
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God, these censors need to be taken out! You
can't even say BA$$!

Gaston


Posts: 3 | From: Marlborough MA | Registered: May 1999  | Report this post to a Moderator
doughboy
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Hmm im no expert but if the remote turn on was fried then your amp wouldnt turn on
When one of my xmax subs fried it sounded kinda like what you described. It would hit hard and then have 1 long low ba$$
Not to mention the neat mushroom cloud coming out of the ports hehe. If thats not it only other thing I could think of is a underpowered electrical system. Put a colt meter on it and watch it.

Can anyone confirm this cause Im just starting to learn everything

-dough
gota edit my dam post so it dont get all *** out : )

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Doughboy
doughboy@ezl.com
ICQ: 5440944

[This message has been edited by doughboy (edited 05-30-99).]


Posts: 685 | From: Alton, Illinois | Registered: May 1999  | Report this post to a Moderator
Inno
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Almost sounds like feedback. Why didn't he unhook the battery before starting? The worst thing he could have done to the deck is either burn a trace on the board (for the remote B+) or possibly the transistor that drives it. What else did he do to the system? What new equipment and how is it wired?

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inno73@hotmail.com


Posts: 490 | From: Fort Frances, Ontario, Canada | Registered: May 1999  | Report this post to a Moderator
tech man
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Well to eliminate the remote lead off
the deck causing the oscillation try
making a jumper from the remote lead and
power lead at the amp (disconnect the
deck remote from the amp when you do this)
and see if the problem changes. Also I
would check for V drop at the amp. A
meter or test light at the amp should tell
you if a severe drop is happening.
You could also have a burnt ground trace
in the deck causing this.
What kind of amp?


Tech's Car

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Building my doors and kicks

My drivetrain upgrades
'Where there's a will there's a wall'
'Would you like a little SQ with your SPL?'

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Posts: 926 | From: Sugarland, Tx | Registered: May 1999  | Report this post to a Moderator
verik
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the amplifier is an mtx 2150x. it's about 3 months old i previously owned this amp and it worked without a problem for me.
The system is a clarion drx-55 or something? then 4 gauge to a 2150x then to 3 10w0's they're 12ohm series and wired parallel.
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[This message has been edited by verik (edited 05-30-99).]


Posts: 11 | From: Three Rivers, MI, USA | Registered: May 1999  | Report this post to a Moderator
tech man
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Those MTX amps are notorious for a broken
ground pin on the RCA connectors. I will
tinker with my MTX amp and see if there
is a easy way to have you check yours.
This broken pin thing just happens often,
you don't need to have hit it or anything.
And of course this isn't necessarily your
problem, but I've seen it cause this in
other systems.


Tech's Car

Install Upgrade Pics

Building my doors and kicks

My drivetrain upgrades
'Where there's a will there's a wall'
'Would you like a little SQ with your SPL?'

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Posts: 926 | From: Sugarland, Tx | Registered: May 1999  | Report this post to a Moderator
verik
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Thanks Techman. My buddy hasn't tried the jumper you suggested but i'll get ahold of it and try it.

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Posts: 11 | From: Three Rivers, MI, USA | Registered: May 1999  | Report this post to a Moderator
Proaudio150
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Well from what you said they sound like a problem EXACTLY the same as what this guy was having at the last show I judged. He had done something and some here he siad there was a problem with the RCA connections on his amp. He went back there and could move the actual plug that went into the amp and the contining bass note would stop till what ever he did got undone by the bas hitting. But from what his problem was sould like a feed pack problem like Inno said...

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_____________________
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1983 Camaro-152dB old system..new system on the way.


Posts: 8036 | From: Huron,Oh | Registered: May 1999  | Report this post to a Moderator
verik
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your right tech and proaudio. It was the rca connections. They were loose from the amplifier's casing were as all the other amp's i have the rca's were stiff to the casing. MTX said they're turn around rate is about 3 weeks. How long would it take you tech?

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Posts: 11 | From: Three Rivers, MI, USA | Registered: May 1999  | Report this post to a Moderator
Proaudio150
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Well you didnt ask me but from what I have seen. The ideal time is 3 weeks or so. But I have seen it take much longer. Friend of mine heck that took almost 2 months. But there was an issue there. Other about warrenty. But 3 weeks seems right when there is not other odd issues.

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_____________________
1999 USAC Finals Qualifier
Usac Sactioned Judge
-----Judged-----
1999 Spring Break Nationals
1999 Midwest Regional
1983 Camaro-152dB old system..new system on the way.
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Posts: 8036 | From: Huron,Oh | Registered: May 1999  | Report this post to a Moderator
tech man
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I have the test for your RCA's (to be sure)
Take an ohmmeter and check for continuity
between one of the amps RCA shields and the
gnd input on the high level amp inputs.
I checked some MTX amps I had laying around
and they were all common ground input so
you should be able to to test it that way.
Do you just have 3 little pins on you high
level input? Anyway the meter should read
similarly to touching the leads together.
I don't do the shipping repair thing anymore,
I have to much business locally.
If you have a shop locally do the work then
I would suggest you use one that is
confortable with auto amps. I've noticed many
repair shops just aren't up to snuff on car
stuff, especially amps.


Tech's Car

Install Upgrade Pics

Building my doors and kicks

My drivetrain upgrades
'Where there's a will there's a wall'
'Would you like a little SQ with your SPL?'


Posts: 926 | From: Sugarland, Tx | Registered: May 1999  | Report this post to a Moderator
verik
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I shipped the amplifier off to mtx on wednesday so a month from now hopefully the amp will be back. I'll keep that test in mind since I have three other mtx amps.
Thanks everybody that helped me out.

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Posts: 11 | From: Three Rivers, MI, USA | Registered: May 1999  | Report this post to a Moderator
ASi_TEK
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Turn on rate at mtx 3 weeks???? WOW! I have had three Xtant amps go in for repair in my life (and one just went in and came back a week ago) and the longest I was out of a amp was one week!! Not only that but those two companies are in the same building too... hmmm...strange! "Mtx-3 weeks" "Xtant 1-week" Looks like we know who values their customer more!!!

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TEAM ASi
"No LiMiTs"

Objects in mirror are stupider than they appear.


Posts: 56 | From: Detroit, MI | Registered: May 1999  | Report this post to a Moderator
ASi_TEK
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oops! i meant turn-around rate...not turn on rate...i must be feeling a little horny today

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TEAM ASi
"No LiMiTs"

Objects in mirror are stupider than they appear.


Posts: 56 | From: Detroit, MI | Registered: May 1999  | Report this post to a Moderator
Dukk
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You just stay over there.......

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Lord Dukk
The Big Show
The Dukk says: Know your bass: PORT your damn box!!
Have HoleSaw, Will Travel!



Posts: 3690 | From: Abbotsford, BC, Canada | Registered: Mar 2000  | Report this post to a Moderator
tech man
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LOL!
You even got the Dukk unconfee...


Tech's Car

Install Upgrade Pics

Building my doors and kicks

My drivetrain upgrades
'Where there's a will there's a wall'
'Would you like a little SQ with your SPL?'


Posts: 926 | From: Sugarland, Tx | Registered: May 1999  | Report this post to a Moderator
   

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