Audio Players & Recorders Logo

Related Topics:

Posted on Sep 02, 2007

Amp power my samson S1500 will not power up. i've checked all of the fuses that i can see with the top cover off, and they are fine and the circut breaker is not tripped. im stuck

  • rkaldor Nov 30, 2007

    I sold my ADCOM GFA 5802 power amp on Ebay. The buyer says it won't fire up, that is won't turn on. I'm stumped as it worked fine when I sold it.

×

3 Answers

Anonymous

Level 1:

An expert who has achieved level 1.

MVP:

An expert that got 5 achievements.

Governor:

An expert whose answer got voted for 20 times.

Hot-Shot:

An expert who has answered 20 questions.

  • Contributor 52 Answers
  • Posted on Jan 03, 2008
Anonymous
Contributor
Level 1:

An expert who has achieved level 1.

MVP:

An expert that got 5 achievements.

Governor:

An expert whose answer got voted for 20 times.

Hot-Shot:

An expert who has answered 20 questions.

Joined: Dec 28, 2007
Answers
52
Questions
0
Helped
48556
Points
81

Scottymac and to all. Power transformer for power amplifier are high current. resistance on both primary and sec are surely very low, one can think its shorted. If all fuse and breaker are OK surely it will fire up or at least show some indication that power is present...lamp or led display for the power, clip and protect (basically)...provided that the SWITCH is also functional. Switch, fuse, Volt selector and the transformer primary is just about what makes the whole circuit to fire your transformer. If all of this components are OK, it should and surely will fire up...But what about if the transformer being switch on by a TRIAC (Thyristor) found in most new AMP today? Make a double check. Hope this will help. Good Luck.
Siliconchip.

Anonymous

Level 1:

An expert who has achieved level 1.

  • Contributor 2 Answers
  • Posted on Dec 10, 2007
Anonymous
Contributor
Level 1:

An expert who has achieved level 1.

Joined: Oct 30, 2007
Answers
2
Questions
0
Helped
1310
Points
2

Question on the Transformer resistance measurement. If the secondary windings output without load only shows less than 1 ohm but the voltage across the 2 output wires is about 15V, is this Transformer still OK? Is this normal that the Transformer output impedance or resistance number that very low?

Ad

Randy Herring

Level 1:

An expert who has achieved level 1.

Hot-Shot:

An expert who has answered 20 questions.

Corporal:

An expert that has over 10 points.

Mayor:

An expert whose answer got voted for 2 times.

  • Contributor 54 Answers
  • Posted on Sep 16, 2007
Randy Herring
Contributor
Level 1:

An expert who has achieved level 1.

Hot-Shot:

An expert who has answered 20 questions.

Corporal:

An expert that has over 10 points.

Mayor:

An expert whose answer got voted for 2 times.

Joined: Feb 06, 2007
Answers
54
Questions
1
Helped
20046
Points
58

Make shure with an ohm meter that the primary and secondary windings have very little resistance on the main trasformer,then check voltage in trasformer and out from transformer...BIGRED

Add Your Answer

×

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

0helpful
1answer

Samson Servo 200 Amplifier: Why do my fuses keep blowing?

Some wiring is burnt..ull need to investigate. Causing an overload circuit. Checkout utube or pinterest. Use caution highvolts
0helpful
1answer
0helpful
1answer

I have a s1500 samson amp I keep blowing speakers, what can I do to prevent this from happing again? The speakers that blown first was two 12'' yorkville 350 w impedance 8 ohm, the next speakers that blown...

Turn the volume down? Feed it cleaner source material?

http://s3.amazonaws.com/samsontech/related_docs/s1500_s2000_manual.pdf

You don't say under what conditions you're blowing them or if any of the informative indicators are warning you of impending doom. The Samson is capable of cooking just about any home speaker.


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


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

protection circuitry is activated 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 protection circuitry is deactivated and the S1500 / S2000 begins

delivering signal to connected speakers (at which point you'll hear a click). It is

normal for the Protection LED to fade gradually after the amplifier is powered off.

Overheating: A temperature sensing device in the S1500 / S2000 will cause

the protection 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 S1500 / S2000 receives adequate

ventilation on all sides and that both the front and rear panels are unobstructed.

Severe overcurrent conditions: This occurs whenever the signal being input to

the S1500 / S2000 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 S1500 / S2000 short one another.

Output impedance drops below 2 ohms: This can occur if the S1500 / S2000

is connected to inappropriate speaker systems (see the "Setting Up and Using

Your S1500 / S2000" section on page 5 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 S1500 / S2000 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.

For further assistance, contact your local Samson dealer. If purchased in the

United States, you can call Samson Technical Support (1-800-372-6766)
between 9 AM and 5 PM EST.

1helpful
1answer

Ineed to replace the 12 volt fuse on my dometic refer and don't know what size fues to use.....

If you are talking about the fuse on the circut board, it tells you the size on the black cover, covering the circut board. I think it's a 1 amp and 3 amp glass fuse.
0helpful
1answer

Need fuses for samson amp

The manual recommends 4 Amp Slow blow for 115 volt operation or 2 Amp Slow blow for 230 Volt operation for the 201a.
http://s3.amazonaws.com/samsontech/related_docs/Servo201a_OM_5L_v1_1.pdf

For the 260 Amp manual shows 10 Amp normal for 115 volt operation and 5 Amp nomal for 230 volt operation.
http://s3.amazonaws.com/samsontech/related_docs/ACF1AAF.pdf
0helpful
1answer

I need to change a fuse

You can test fuses without removing them by using a test light and probing the small openings in the top of each one at each end with a test light. it takes about ten minutes to test all of them so any one that does not have power on both ends is bad and needs to be replaced. Lighter will be at least a 25 amp fuse or sometimes runs off a circut breaker. (little metal covered fuses usually at the top of fuse box) Breakers need to be tested with a continuity tester or can be powered on one spade and checked with a test light touched to other spade.(when removed)
0helpful
2answers

Dell w4201c burning fuse...

hello, definitely if your fuses are blown and your not able to circut trace and find the fualty compnents on the pb then repalce it with a working power supply this may help but also keep in mind you may want to check everything out first get your models service manual so you can verify voltages at test points. something is cuasing the fuses to blow so if you do change the power board and you blow the fuses again then you will need to trace the circut and find out where the short is and what panel or part is cuasing it .

hope this helps
0helpful
1answer

Amp power

if one amp powers up and the other one doesn't in the same car,it tells u its not the wire, both amps seem to be damage and will require repair.if your having problems with amps u are over demanding the amp for power. try higher ohm speaker configuration for less amp break downs
Not finding what you are looking for?

355 views

Ask a Question

Usually answered in minutes!

Top Audio Players & Recorders Experts

 Grubhead
Grubhead

Level 3 Expert

5755 Answers

SmartAviator
SmartAviator

Level 3 Expert

1124 Answers

Cindy Wells

Level 3 Expert

6688 Answers

Are you an Audio Player and Recorder Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...