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  • Recycling old car radio into an audio amplifier

    Actually I see they are not present on either side of the original configuration, so you must be adding them in. What are they specifically?

    Thanks very much for the reply(s). I am still fuzzy on the section where you talk about the yellow hand-drawn components (inductor + capacitor)... Did you have to add them in (if so, what are their specs?) or are they on the other side of the board, and it is a necessity to be aware of their location as to know where to solder in the leads (before/after) etc?Typically both the mute and standby would possibly require VCC (within specified range according to datasheets etc)?

    Actually, I see they are not on either side of the board originally, so you are adding them in. What are their specs, and if you don't add them, what will happen?

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  • Recycling old car radio into an audio amplifier

    Couple more questions: (For anybody that can answer)What are the two yellow connections that you drew in your above diagrams, the upper one appears to link a powered section of the board to a ground section, and the lower one looks to be a resistor between two powered sections of the board?When you say "jumpered" to the stby pin, do you mean you just ran straight 12v from a nearby powered section to the standby pin?I cannot get any output sound currently. I am reading 3v or so coming from each of the INPUT leads (all four of them)... not sure about that, perhaps I am missing something necessary in grounding. Where exactly did you solder into the input leads? Right at the amp?I am not getting even any hiss from the output leads... almost as if it is muted, or not turned on. The...see more »Couple more questions: (For anybody that can answer)What are the two yellow connections that you drew in your above diagrams, the upper one appears to link a powered section of the board to a ground section, and the lower one looks to be a resistor between two powered sections of the board?When you say "jumpered" to the stby pin, do you mean you just ran straight 12v from a nearby powered section to the standby pin?I cannot get any output sound currently. I am reading 3v or so coming from each of the INPUT leads (all four of them)... not sure about that, perhaps I am missing something necessary in grounding. Where exactly did you solder into the input leads? Right at the amp?I am not getting even any hiss from the output leads... almost as if it is muted, or not turned on. The only sound I get from the speaker is a faint pop when I connect main power.Thanks very much.

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  • Recycling old car radio into an audio amplifier

    Great job, thank you Vitim!I am currently doing this to a newer Clarion deck, similar (common) 4x50W Toshiba setup. Fairly nicely labelled on the board too.Question #1: Can I bridge the four channels into two, by joining the F/R right outputs, and the F/R left outputs? This would provide 2 x 100W as a result. I worry though that there needs to be additional circuitry to prevent the signals from feeding into each other?Question #2: For soldering in the input signals, what is the best locations to solder in the accompanying grounds (neg-) from say, the RCA cables such as you used? Or does it matter?Again, thank you and great job.

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