Replaced the diode and amp still doesn’t power up .
I’m not getting any voltage on the gate legs for the fets .
Only thing I see is Q1 marked 6CW and the gate driver ic .
Would posting the voltages on the gate driver ic help determine if it’s defective or not ?
I’m not getting any voltage on the gate legs for the fets .
Only thing I see is Q1 marked 6CW and the gate driver ic .
Would posting the voltages on the gate driver ic help determine if it’s defective or not ?
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Yes. I dont have schematics for this particular amplifier. Post good quality photos.
Usually all Taramps remote line powers on 5V regulator which then feeds pic/driver ics.
Usually all Taramps remote line powers on 5V regulator which then feeds pic/driver ics.
What about missing resistor under D4?
I cant remember if enable pin was directly connected to pin1 in these amplifiers.
Figure it out why IC9 doesnt have input/output voltages.
I cant remember if enable pin was directly connected to pin1 in these amplifiers.
Figure it out why IC9 doesnt have input/output voltages.
So it was received as repaired before? I believe it was 4r7 1206 resistor which is missing.
If no one can help today (i am not in my shop and dont have any of schematics) - I can tomorrow check for schematics from a similar series amplifier.
But it should be an easy job with multimeter - IC9 should receive Bat+ voltage on pin 1,2 to produce regulated +5Vdc at pin 8.
If IC9 is bad and shorted, it can damage its input feeding resistor. Again - check with multimeter backwards from pin1 if its not connected to that resistor.
If no one can help today (i am not in my shop and dont have any of schematics) - I can tomorrow check for schematics from a similar series amplifier.
But it should be an easy job with multimeter - IC9 should receive Bat+ voltage on pin 1,2 to produce regulated +5Vdc at pin 8.
If IC9 is bad and shorted, it can damage its input feeding resistor. Again - check with multimeter backwards from pin1 if its not connected to that resistor.
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I believe you are correct the resistor is missing . IC9 is shorted since I’d I put a resistor in that location it burns instantly.