im still having the problem with no output from my s/w output, so i called pioneer yesterday, and one of the guys told me to ground my cd player to my amp??? i dont understand what he is talkin about, he said i could soder a wire into my rca cables? he said its something to do with their ground loop. is there anything else i can try. i dont think its my ground anyway, i ran a 12awg wire from the harness right to my battery and i was still having the problem. maybe you guys have done something similar or know what hes talkin about but i dont wanna do anything that may potentially damage my system, any ideas. i tried to take a volt meter and test the outputs but i couldnt figure out the meter. its my brothers and it costs like 250 dollars and its too advanced for me lol. i know theres another around the house/garage somewhere i just gotta find it. will a volt meter tell me if the outputs are working properly or not. if not i dont want to waiste my time. thanx again guys for the great help
Replies (8)
bobbi-digi on 10/25/2003 20:47:44
I have owned several Pioneer HUs, and the s/w outputs worked fine at all times - without the need to connect anything extra outside of patch cables to that amp.
I don't think I'd go out and start soldering all o'er my expensive RCA cables if I wasn't sure what he was talking about - and I don't know what he seems to be talking about.
As far as you plugging the ground wire of the HU directly to the (-) battery terminal - I've never done that, and I don't think it is considered good practice to do so, because it inevitably leads to lengthy ground wires which equal --> bad.
Perhaps some of the pros 'round here have ran into this and know what the Pioneer Tekkie was talking about, but if that was my HU - I think I'd be asking Pioneer to replace it 4 me 4 free [how old is it by the wayż]
But before you do anything else I'd recommend that you rule out the possiblity of faulty RCA cables... I've had patch cables die on me before, and it is generally the easiest thing to test and rule out right away by just swapping another purr in thurr...
....if you haven't already tried this step, it is probably a better first step to try than perhaps slopping solder all over the place unnecessarily.
^_-
Sincerely;
Your Daddy;
Robert J. Digital;
C.E.O. Digital Enterprizez Ink.
compvr15s on 10/25/2003 21:34:29
its not the cables, it works fine when its plugged into the rear output and switched to s/w but then the rear channel on the HU amp only allows bass through my 6x9s. its only about 2 moths old but i bought it off of e-bay. im hoping its just something that im doing wrong but ive tried everthing i can think of to fix it and no luck. i can have it checked out for 35 bucks but id rather not/ thanx for the info :-D
Swez on 10/25/2003 23:32:40
Egads... this is making my head spin...
S/W outs should have a signal voltage that is fed to s/w amp via RCA lines. If you do not have the S/W output preamp on the HU set up right, there will be no signal for the SW amp to work with.
If you have noise, then a ground loop is probably an issue. But here, it sounds more like RCA line issues, SW out preamp is disabled or you have a problem with your s/w amp.
Can you review the manual that came with the HU and find out how to get adequate preamp volts to your SW amp? There may be a menu that allows you to control S/w output from the HU.... it seems like this is not happening!
Also, since you have a meter, you can test the resistance of the RCA wires from HU to amp. Set the meter to ohms, then touch tip to tip on each cable and ground to ground to each cable.... (not connected to amp or HU. The ohmic reading should be well below 2 ohms. If you get a higher reading or no readings at all... cable has a problem. There should be no ohms readings between ground and hot pins on your RCA's. If you have a reading, it should be very high... (Meg-ohms) If there is a low ohmic reading between ground and hot, shorted RCA is likely.
Comments?
Swez
ttocs on 10/26/2003 16:38:33
I would agree to test the cables, if they acted the same on the s/w output as it does on the rears....
compvr15s on 10/26/2003 17:36:31
i will check the rcas as soon as possible i hope that is the problem but i dont think it is. the stero shop know me good so i can just barrow a new set from them and then if they work i can buy them if not i can take them back. thanx for the help ill post once i find out if thats the problem or not
Swez on 10/27/2003 09:57:40
Which Pioneer HU do you have here? If you know the model number, can go to the Pioneer site and DL a copy of the install/applications manual. That will explain everything you are looking for.
It sounds like your HU may have a full range/SW feature on the rear channel only. If there are only 2 sets of RCA's in this HU, this is what you have.
If your HU has 3 sets of RCA's, then there is a separate SW output avialable in this HU.
What do you have here?
Swez
compvr15s on 10/27/2003 18:06:56
i figured out the problem on the pioneer HU. it has 3 sets of preouts. i had to turn both the preout and the rear output to full, this then enabled the nonfade feature, which was not showing up before, now all the speakers work as well as the subs with the subs being ran of the s.w output. its the pioneer premier 7500. is this the only way to run it using the s.w outputs, doing it with the nonfade option i lose control of my s.w controls as in the +-6 and the crossover. the highpass crossover is effecting my subs and that dont seem right to me, if its not set at 50 hz then the subs are preforming not as well as they should be. thanx for all the help, if i woulda just sat down and read the manual i probably woundlnt of had this problem.
Swez on 10/27/2003 19:37:32
Keep reading... there's more info in the manual to help you on this matter too. I have read a few of the high end Premier install manuals and they are very complex, depending on the built in features.
Study the wiring diagrams and the menu selection options. This is where the controls are explained and how to access them for adjustments.
Reading the manual ???? Who'd ever thunk of that? THINK
Swez GRIN
PS Non fading for the SW controls sounds like the proper opption on a 3 output HU. You'll need to access the LP filter network choices available in the menu guide. If that process does not work well for you, can always feed the amp a full range signal and use LP filter on the sub amp... ~80-100 Hz should be good to go!
Replies (8)
bobbi-digi on 10/25/2003 20:47:44
I have owned several Pioneer HUs, and the s/w outputs worked fine at all times - without the need to connect anything extra outside of patch cables to that amp.
I don't think I'd go out and start soldering all o'er my expensive RCA cables if I wasn't sure what he was talking about - and I don't know what he seems to be talking about.
As far as you plugging the ground wire of the HU directly to the (-) battery terminal - I've never done that, and I don't think it is considered good practice to do so, because it inevitably leads to lengthy ground wires which equal --> bad.
Perhaps some of the pros 'round here have ran into this and know what the Pioneer Tekkie was talking about, but if that was my HU - I think I'd be asking Pioneer to replace it 4 me 4 free [how old is it by the wayż]
But before you do anything else I'd recommend that you rule out the possiblity of faulty RCA cables... I've had patch cables die on me before, and it is generally the easiest thing to test and rule out right away by just swapping another purr in thurr...
....if you haven't already tried this step, it is probably a better first step to try than perhaps slopping solder all over the place unnecessarily.
^_-
Sincerely;
Your Daddy;
Robert J. Digital;
C.E.O. Digital Enterprizez Ink.
compvr15s on 10/25/2003 21:34:29
its not the cables, it works fine when its plugged into the rear output and switched to s/w but then the rear channel on the HU amp only allows bass through my 6x9s. its only about 2 moths old but i bought it off of e-bay. im hoping its just something that im doing wrong but ive tried everthing i can think of to fix it and no luck. i can have it checked out for 35 bucks but id rather not/ thanx for the info :-D
Swez on 10/25/2003 23:32:40
Egads... this is making my head spin...
S/W outs should have a signal voltage that is fed to s/w amp via RCA lines. If you do not have the S/W output preamp on the HU set up right, there will be no signal for the SW amp to work with.
If you have noise, then a ground loop is probably an issue. But here, it sounds more like RCA line issues, SW out preamp is disabled or you have a problem with your s/w amp.
Can you review the manual that came with the HU and find out how to get adequate preamp volts to your SW amp? There may be a menu that allows you to control S/w output from the HU.... it seems like this is not happening!
Also, since you have a meter, you can test the resistance of the RCA wires from HU to amp. Set the meter to ohms, then touch tip to tip on each cable and ground to ground to each cable.... (not connected to amp or HU. The ohmic reading should be well below 2 ohms. If you get a higher reading or no readings at all... cable has a problem. There should be no ohms readings between ground and hot pins on your RCA's. If you have a reading, it should be very high... (Meg-ohms) If there is a low ohmic reading between ground and hot, shorted RCA is likely.
Comments?
Swez
ttocs on 10/26/2003 16:38:33
I would agree to test the cables, if they acted the same on the s/w output as it does on the rears....
compvr15s on 10/26/2003 17:36:31
i will check the rcas as soon as possible i hope that is the problem but i dont think it is. the stero shop know me good so i can just barrow a new set from them and then if they work i can buy them if not i can take them back. thanx for the help ill post once i find out if thats the problem or not
Swez on 10/27/2003 09:57:40
Which Pioneer HU do you have here? If you know the model number, can go to the Pioneer site and DL a copy of the install/applications manual. That will explain everything you are looking for.
It sounds like your HU may have a full range/SW feature on the rear channel only. If there are only 2 sets of RCA's in this HU, this is what you have.
If your HU has 3 sets of RCA's, then there is a separate SW output avialable in this HU.
What do you have here?
Swez
compvr15s on 10/27/2003 18:06:56
i figured out the problem on the pioneer HU. it has 3 sets of preouts. i had to turn both the preout and the rear output to full, this then enabled the nonfade feature, which was not showing up before, now all the speakers work as well as the subs with the subs being ran of the s.w output. its the pioneer premier 7500. is this the only way to run it using the s.w outputs, doing it with the nonfade option i lose control of my s.w controls as in the +-6 and the crossover. the highpass crossover is effecting my subs and that dont seem right to me, if its not set at 50 hz then the subs are preforming not as well as they should be. thanx for all the help, if i woulda just sat down and read the manual i probably woundlnt of had this problem.
Swez on 10/27/2003 19:37:32
Keep reading... there's more info in the manual to help you on this matter too. I have read a few of the high end Premier install manuals and they are very complex, depending on the built in features.
Study the wiring diagrams and the menu selection options. This is where the controls are explained and how to access them for adjustments.
Reading the manual ???? Who'd ever thunk of that? THINK
Swez GRIN
PS Non fading for the SW controls sounds like the proper opption on a 3 output HU. You'll need to access the LP filter network choices available in the menu guide. If that process does not work well for you, can always feed the amp a full range signal and use LP filter on the sub amp... ~80-100 Hz should be good to go!
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