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Puzzled...Laney CD630 6 input Mixer Amp (1999) Cracking Noise problem still there.
Have replaced All Transistors (with new original sap15's)
Have Replaced Output Relay ( originally thought to be problem)
Have re-soldered any suspect looking joints on the board.
Having trouble setting amp bias...Amp works fine after other replacements..loud as normal...clean signal...but then starts to crack!..POP! Bang!!..then the relay cuts out.(resets after few seconds).
Temp is not the issue...loud noises from cold startup...ran perfectly for 5 hours then freaked out!.
This occurs even with front of amp disconnected (so not loose jack input.)
The fault is getting steadily worse.
Could the fault be a crappy diode / resistor / capacitor..as the all look fine.
Any help much appreciated as i am now going insane ...
cheers guys.
lee@gatehouselive.com
Have replaced All Transistors (with new original sap15's)
Have Replaced Output Relay ( originally thought to be problem)
Have re-soldered any suspect looking joints on the board.
Having trouble setting amp bias...Amp works fine after other replacements..loud as normal...clean signal...but then starts to crack!..POP! Bang!!..then the relay cuts out.(resets after few seconds).
Temp is not the issue...loud noises from cold startup...ran perfectly for 5 hours then freaked out!.
This occurs even with front of amp disconnected (so not loose jack input.)
The fault is getting steadily worse.
Could the fault be a crappy diode / resistor / capacitor..as the all look fine.
Any help much appreciated as i am now going insane ...
cheers guys.
lee@gatehouselive.com