Hi all,
This amp was in protect. Changed outputs and the amp comes on but seeing -1.5v on output terminals without signal. When signal given it is still having same -1.6v but when I increase the gain until it clip the voltage disappears (with no load).
This amp was in protect. Changed outputs and the amp comes on but seeing -1.5v on output terminals without signal. When signal given it is still having same -1.6v but when I increase the gain until it clip the voltage disappears (with no load).
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Did you also replace the driver transistors for the outputs ?
Could possibly be a leaky driver transistor
Could possibly be a leaky driver transistor
Have you tried hooking up a load? I have a RA tivo 1000.1 that does the same until u hook up a speaker to it
Amp running cool and no drawing of high current. Checked small transistors on mainboard and all look normal.
Is there a voltage difference between speaker terminal - and speaker terminal +?
Or do they both have the mentioned -1.5v on them?
Or do they both have the mentioned -1.5v on them?
Yes the voltage decrease after connecting load. But the amp going into protection as I increase volume. It going now into protect with and without load before the volume even reach 1/4th
You said that the voltage decreased with a load. Did it go to 0v?
Does the output look clean up to the point where the amp shuts down?
Does the amp draw significant additional current with a signal but no load at the point where it shuts down?
Does the output look clean up to the point where the amp shuts down?
Does the amp draw significant additional current with a signal but no load at the point where it shuts down?
It is not going to zero, I getting voltage like 0.5v. But suddenly it blew the outputs. There is some problem. Oscillations are all good without input. But once signal is given it goes into protect. Some times as I increase gain it goes to protect. I dont know what ic the driver board is using for me to change and try. 4 ic are in driver board I guess is opamp.
