hello everyone
i hve JBL Eon315 looks the same as 510
it turns on power led blue on. mic switch led red on, microphone plugged in and the green led flashing ( mean there is the signal from microphone) but no sound output just a little hiss from speaker.
when i touch some parts in the mixer board i got some load noise to speaker
voltages: vbulk 320V and half vbulk160v on boath C610 C611
on c645 and c647 -/+40v on c665 and c667 -/+5v
output of U608 12.6v on schematic shows 15V but the amp turns on and stay on i removed the u608 and inject 15v to output resistor R643 relay clicks then i pluged the amp to the power turns s but no sound
tested some capacitors for leaks and changed some but still no change no sound
to here i dunno if the problem in the mixer board or power/amp board
any help will be appreciate
or if canot be fixed is there a way to bypass the mixer and connect the microphone direct to amp board
thank you
i hve JBL Eon315 looks the same as 510
it turns on power led blue on. mic switch led red on, microphone plugged in and the green led flashing ( mean there is the signal from microphone) but no sound output just a little hiss from speaker.
when i touch some parts in the mixer board i got some load noise to speaker
voltages: vbulk 320V and half vbulk160v on boath C610 C611
on c645 and c647 -/+40v on c665 and c667 -/+5v
output of U608 12.6v on schematic shows 15V but the amp turns on and stay on i removed the u608 and inject 15v to output resistor R643 relay clicks then i pluged the amp to the power turns s but no sound
tested some capacitors for leaks and changed some but still no change no sound
to here i dunno if the problem in the mixer board or power/amp board
any help will be appreciate
or if canot be fixed is there a way to bypass the mixer and connect the microphone direct to amp board
thank you
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