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16th October 2011, 12:04 AM
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#1 |
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diyAudio Member
Join Date: Jan 2010
Location: memphis tn
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Memphis amp 16-MCD1000
i have another one of these amp. ive replaced the transistors in the power supply. and got the and playing but the amp isnt putting out the power it should. i have to max the gain just to get a decent sound out. any idea what that this could be?
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16th October 2011, 01:00 AM
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#2 |
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diyAudio Member
Join Date: Nov 2003
Location: Louisiana
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Is the output clipped or distorted?
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Links >> Basic Car Audio Amp Repair --- Basic Car Audio Electronics --- Basic Transistor Testing --- Basic Switching Power Supply Design --- Basic Computer Skills << Links |
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16th October 2011, 01:36 AM
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#4 |
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diyAudio Member
Join Date: Nov 2003
Location: Louisiana
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What is the input voltage of the test tone that you're driving into the amplifier?
Measure the AC voltage directly on the back of the RCA jacks (red probe). Place the black probe on the RCA shield.
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Links >> Basic Car Audio Amp Repair --- Basic Car Audio Electronics --- Basic Transistor Testing --- Basic Switching Power Supply Design --- Basic Computer Skills << Links |
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16th October 2011, 02:10 AM
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#6 |
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diyAudio Member
Join Date: Nov 2003
Location: Louisiana
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Are you saying that you have 4v DC?
__________________
Links >> Basic Car Audio Amp Repair --- Basic Car Audio Electronics --- Basic Transistor Testing --- Basic Switching Power Supply Design --- Basic Computer Skills << Links |
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16th October 2011, 04:09 AM
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#8 |
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diyAudio Member
Join Date: Nov 2003
Location: Louisiana
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Set your meter to AC volts and touch the probes across the terminals of your 12v power supply. What does it read?
__________________
Links >> Basic Car Audio Amp Repair --- Basic Car Audio Electronics --- Basic Transistor Testing --- Basic Switching Power Supply Design --- Basic Computer Skills << Links |
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