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Anonymous Posted on Dec 09, 2013

Samson servo 500 amplifier Protection light turned on when turn on the power on

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Hello, my Samson Servo 200 has a problem, when I push the Power-ON button, the Protection Modus don' t started.

You have lost a circuit. this is a problem that you can not fix yourself.

Check to see where the nearest "AUTHORIZED" service center is.

Do NOT take it to Joe Schmoe stereo repair!

Use ONLY an "AUTHORIZED" repair center!

Going anywhere else could result in YOU replacing your unit!

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Protect light on amplifier

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.
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No sound coming with protection light on

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.

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Samson servo 300 right channel low output power protection on.Left channel ok.

Hi...

This amp will need to be serviced

Check on the web for someone who does audio/stereo repair in your area
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1answer

When i turn my servo 170 on the protection light cums on so does the left channel clip light

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

One of the channels in the amp is bad. That channel will need tobe replaced. You may need to take it to a repair shop.
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1answer

Samson Servo 170 protection circuit problem!

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
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Samson Servo 170 - 1 dodgy channel

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