With the rca face your self the right side ( close to the power input). With the black test led to the amp ground and the red to the right of the 100 ohms res. It red 84.2 volts on the the left side closes to the speaker output terminals it red zero. If I put the red test led to the power on the input of the amp and the black to the right of the 100ohms res I get a reading on 84.2volts and on the left I get 12.2 volts
some steel shaving was across the middle pin and the left pin of fet192 I didn't see it power the amp up and r147 and r148 went up in smoke. ive replace the hole power supply area and power regulator and transiter and still have the same probley with r147 and r148 blowing. what and where is the ic for the power regulator? I would like to replace them seems like they have fell. ive tooking out u403(3120) and ne55 what is a good replacement for the componts . thanks
Power regulator? Do you mean voltage regulator? There is no IC for the low-voltage voltage regulators feeding the op-amps.
If R147 and 148 are failing, it's either due to the output voltage of the regulator being too high or something that the regulator is feeding is shorted.
Why did you remove the 3120?
If R147 and 148 are failing, it's either due to the output voltage of the regulator being too high or something that the regulator is feeding is shorted.
Why did you remove the 3120?
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