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10th June 2010, 02:21 AM
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#21 |
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diyAudio Member
Join Date: Nov 2003
Location: Louisiana
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__________________
Links >> Basic Car Audio Amp Repair * Basic Car Audio Electronics * New Site * Basic Switching Power Supply Design * Basic Computer Skills << Links |
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11th June 2010, 07:53 PM
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#22 |
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diyAudio Member
Join Date: Jun 2010
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ok
i resoldered the bad looking joints , checked all over for burnt tracks or components , and soldered on 2 bridge wires that perry emailed a link to its pretty much the same , maybe a tad better but its probably wishfull thinking |
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12th June 2010, 11:10 AM
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#23 |
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diyAudio Member
Join Date: Nov 2003
Location: Louisiana
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To do any further troubleshooting, you'll likely need a signal tracer. If you were in the US, I'd recommend the Radio Shack mini-amplifier but I doubt it's available there. Maybe you can find something similar.
__________________
Links >> Basic Car Audio Amp Repair * Basic Car Audio Electronics * New Site * Basic Switching Power Supply Design * Basic Computer Skills << Links |
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12th June 2010, 02:21 PM
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#24 |
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diyAudio Member
Join Date: Jun 2010
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edit..
found one cheap in uk ebay if i get one , is it likley that i will fix it ? i dont want to spend $$ on equipment then be unable to fix it anyway , if you dont mind maybe a quick outline of what the next step will involve please thanks again Last edited by steveo3002; 12th June 2010 at 02:36 PM. |
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12th June 2010, 11:08 PM
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#25 |
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diyAudio Member
Join Date: Nov 2003
Location: Louisiana
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The mini amp would be used to listen to the signals on the input and output pins of several components (ICs, transistors...) to see if you can find the point where the noise is entering the audio chain. If the problem is internal to the head unit, it's possible that the mini-amp will help track it down but there are no guarantees.
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Links >> Basic Car Audio Amp Repair * Basic Car Audio Electronics * New Site * Basic Switching Power Supply Design * Basic Computer Skills << Links |
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13th June 2010, 07:43 AM
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#26 |
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diyAudio Member
Join Date: Jun 2010
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ok i'll get it ordered then..will report back when its in my hands
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15th June 2010, 08:08 AM
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#27 |
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diyAudio Member
Join Date: Jun 2010
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ok i have the radio shack amp/speaker here now
next step in dummy terms please |
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15th June 2010, 08:47 AM
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#28 |
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diyAudio Member
Join Date: Nov 2003
Location: Louisiana
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Power up the head unit in the vehicle (assuming that the noise was being produced by the charging system in the vehicle) and connect the mini-amp to each channel to confirm that the same channel is noisy with the mini-amp as with the original amplifier.
__________________
Links >> Basic Car Audio Amp Repair * Basic Car Audio Electronics * New Site * Basic Switching Power Supply Design * Basic Computer Skills << Links |
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15th June 2010, 08:59 AM
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#29 |
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diyAudio Member
Join Date: Jun 2010
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ok i'll do it...i know its not the charging system
as mentioned before i ran it in the house with a spare car battery and my home hifi amp |
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15th June 2010, 09:00 AM
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#30 |
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diyAudio Member
Join Date: Nov 2003
Location: Louisiana
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If it's not related to the charging system, you can test wherever it's most convenient.
__________________
Links >> Basic Car Audio Amp Repair * Basic Car Audio Electronics * New Site * Basic Switching Power Supply Design * Basic Computer Skills << Links |
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