I replaced the outputs in 2 out of the 4 channels . I turned the bias pots fully counter clockwise.
The problem im having now is 3 out of the 4 channels work great
The Left rear channel has a problem as soon as i connect a test speaker to it it throws the amp into thermal protection. Any Ideas??
The problem im having now is 3 out of the 4 channels work great
The Left rear channel has a problem as soon as i connect a test speaker to it it throws the amp into thermal protection. Any Ideas??
Confirm that all of the non-bridging speaker terminals are still directly connected to the amp's ground.
What does the left rear look like on the scope with no load?
What does the left rear look like on the scope with no load?
The negative of all 4 channels is connected to amps ground.
The rear left channel looks like the other 3 on the scope nice sine wave
The rear left channel looks like the other 3 on the scope nice sine wave
Ok my mistake the following are connected to ground
front left - right front + rear left - right rear +
front left - right front + rear left - right rear +
I found the problem i guess i over looked it . Amp had a bad emitter resistor in the rear left channel it measured 6.44K ohms.
Im moving on to the next amp hope you can help im gonna post a new thread in 2 mins
Im moving on to the next amp hope you can help im gonna post a new thread in 2 mins
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