Hi when i turn on my servo 170 my protection lite stays on

read the manual: http://www.samsontech.com/site_media/legacy_docs/servo_170_260_550_man.pdf

If that does not work give us more details.

Oh dear! Protection system has detected a short in the main power amp. The water has caused a great deal of damage. You will have to replace all the parts that have been damaged. Your nose will lead you to where to look.

Hi,
The amplifier have problem with the out put drive section. Repairing of such an amplifier should be done by a skilled person. there should be need of repacing so many components if the out put driver transistor is short. If you make any mistake the components you change will also go in to fire.

Ajin

replace the servo

It's either overheated or you may have faulty speaker wiring or a shorted speaker. These directions come from a Samson servo 120a but the theory is the same.

The following conditions will cause the Protection LED to go on:

• Initial power-up: For approximately five seconds after initial power-up, the relay

speaker connection circuitry is deactivated and the speaker output is muted. If everything is operating normally, you will hear an audible click at the conclusion of this brief period, as the circuitry is activated and the Servo 120a begins delivering signal to connected speakers (at which point the Speaker LED will light if the Speaker on/off switch is in its "in" position). It is normal for the Protection LED to fade gradually after the amplifier is powered off.

•Overheating: A temperature sensing device in the Servo 120a will cause the relay speaker connection circuitry to be activated (and the Protection LED to go on) whenever the operating temperature of the unit rises above a safe level. To guard against this problem, make sure the Servo 120a receives adequate ventilation on all sides ; in extreme environmental conditions, you may also

want to consider the use of cooling fans.

•Severe overcurrent conditions: This occurs whenever the signal being output

from the Servo 120a rises to a level above 20% THD (Total Harmonic Distortion).

•Shorted speaker cables: This will occur if, due to faulty wiring, the hot and ground signals being output by the Servo 120a short to one another.

•Output impedance drops below 2 ohms: This can occur if the Servo 120a is connected to inappropriate speaker systems (see the "Setting Up and Using the Servo 120a" section in this manual for more information).

•DC voltage detected at speaker output: The most likely cause of this is an internal failure. In general, any time the Protection LED lights up (other than during the approximately five seconds following initial power-up), there is reason to be concerned. If this occurs, turn the Servo 120a off immediately and carefully check all wiring and external devices in order to locate and correct the condition that caused the LED to light up in the first place.

Sounds like a problem with the coils. Coils are known to short-out during periods of high-use. This happens when the insulation between wires break down and allow for a path of lower resistance for the current to travel. If this is the problem, you'll have to replace the coils in the amp which is a weekend job, but completely do-able. Hope this helps

Disconnect your speakers and see if the same thing happens. If it does not, then you have a problem with your speakers - possibly too many wired in parallel. If the amp. still shuts down, then it'll have to go in for repair.

my friend resistors and diodes don't just go off your circuit without a real problem. those parts gave up because of shortage on your power section, i suggest that you check your power transistros first along with the diodes and resistors.

noisy transformers... hmmmm why is that making sound? the solution there is to dip the power transformer to a thick shellac varnish let it there for let's say an hour then let it dry for a day. then place it back in your unit and see if still sounds

check see if youy have some coving the vent or the speak connect right

http://www.soundonsound.com/forum/showflat.php?Cat=&Number=403253&Main=351397