Hello everyone
I have in my possession, to repair this amp, but I do not have his partner ST-CA 1080.
Well, when you connect it, nothing happens, no sound, no lights on in vumeters or standby mode, despite pressing the power button.
I checked voltages at certain points of the circuit on the motherboard, and I've seen different voltages at various points, which leads me to determine that it is not the power supply.
I made the connection bridge TP701 which forces the amplifier to turn on.
By doing so, power relays are activated, and the lights of the vu-meters are on, but nothing else works.
I have checked many components of the motherboard (resistors, transistors, diodes, capacitors,) and I have not found any that are wrong.
Any ideas of where to look?
Any help will be appreciated.
Thanks in advance.
I have in my possession, to repair this amp, but I do not have his partner ST-CA 1080.
Well, when you connect it, nothing happens, no sound, no lights on in vumeters or standby mode, despite pressing the power button.
I checked voltages at certain points of the circuit on the motherboard, and I've seen different voltages at various points, which leads me to determine that it is not the power supply.
I made the connection bridge TP701 which forces the amplifier to turn on.
By doing so, power relays are activated, and the lights of the vu-meters are on, but nothing else works.
I have checked many components of the motherboard (resistors, transistors, diodes, capacitors,) and I have not found any that are wrong.
Any ideas of where to look?
Any help will be appreciated.
Thanks in advance.
This bridge, when connected, only sends voltage to some basic points of the amplifier.
To test in depth any fault in this amplifier, preamplifier is required ST-CA 1080
I bought this preamp, and managed to repair it.
To test in depth any fault in this amplifier, preamplifier is required ST-CA 1080
I bought this preamp, and managed to repair it.