Hi,
I am looking for getting some assistance regarding the above amplifier.
In present condition, when power switch is pressed, i only hear a relay click, so it is in protection mode.
When direct + tone control and stand by is pressed for some time, it gives me three relay clicks
1. For turning on the small standby power supply.
2. For the supply of the power to the amplifier board.
3. For the speaker relays.
(all these are my guess).
when turned on by the 3 buttons pressed it remains on but no display.
Till now i have checked only for the DC output at the emitter resistor and there is a small ( 2 to 5 volts ) dc on them as the first relay clicks, then it settles to almost 0 volts.
Please help me in getting further with the diagnosis of this unit. i have the required testing and measurement tools and the schematic.
i am stuck
Regards,
Hemant.
I am looking for getting some assistance regarding the above amplifier.
In present condition, when power switch is pressed, i only hear a relay click, so it is in protection mode.
When direct + tone control and stand by is pressed for some time, it gives me three relay clicks
1. For turning on the small standby power supply.
2. For the supply of the power to the amplifier board.
3. For the speaker relays.
(all these are my guess).
when turned on by the 3 buttons pressed it remains on but no display.
Till now i have checked only for the DC output at the emitter resistor and there is a small ( 2 to 5 volts ) dc on them as the first relay clicks, then it settles to almost 0 volts.
Please help me in getting further with the diagnosis of this unit. i have the required testing and measurement tools and the schematic.
i am stuck
Regards,
Hemant.
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