Question about Samsung HT-DB120 System
Posted by Anonymous on
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
Here's a link to this great service
Posted on Jan 02, 2017
i have the same problem. was playing a cd for my son for about 20 mins. CD started skipping then froze up and shut off. When trying to power on the word "PROTECTION" comes on then shuts right off. Is there any solution for this problem? My husband bought this when it first came out over 6 years ago at $400. I bearly even use it. It's a waste to throw away. Please someone help. Thanks.
Posted on Apr 29, 2008
Tips for a great answer:
It is possible that the amplifier had encountered a fault with a higher current drain which had triggered it to a protection fault condition. The fault can be with your output drivers. Please check for short on the outputs fitted for both the channels. Use a meter after disconnecting to check for short in the drivers. Disconnect the positive and negative voltages to the output and see if the protect changes. Even a fault in the preamp stages that drives in high current into the output can shut the Amplifier. Sometimes this can be a noise which can be a HUM or HISS before the protect works. Faulty capacitors in these circuits also can cause similar issues and needs close observation.You need to confirm and replace the specific stages or outputs. If not there can be issues in the mother board. Maybe the protect circuit by itself is shutting off due to a faulty bias or there is a leak in any voltage/current sensing circuit. Also disconnect the speakers and test, if the amplifier comes out of the protect mode then check for short on the speakers.
Nov 22, 2011 | Audio Players & Recorders
Nov 21, 2011 | Samsung Audio Players & Recorders
Assuming you did NOT modify the speaker complement...
Generally speaking, an amp protects itself from heat, shorts and overloads by refusing to turn on or stay on.
Overloads can be from excessive periods of high output or marginally low impedance loading by the speakers; and shorts would be wiring issues or a speaker blowing up.
You should be able to feel if it's hot. WHY is it overheating? Make sure it has sufficient ventilation on all sides and that vent holes are not blocked by dust balls. Ensure the fan (if equipped) is running as designed (some only operate on demand). Clean dust and debris from it.
If the amp comes back on after cooling, you're lucky. They only have so many self-protection cycles in their lives so continuously resetting or cycling their power without addressing the cause can do more harm than good.
If it protects immediately on a cool power up you should disconnect the speaker connections and try it 'naked'. If it comes up then diagnose which lead(s) are shorted. If it does not come up the problem is internal and should be left to an experienced and competent hands-on tech.
Check for loose speaker connections as a root cause for intermittent shutdown.
Feb 27, 2011 | Samsung HT-DB120 System
Jan 24, 2011 | Sony FD Trinitron KD-36XS955 36" TV
Mar 03, 2010 | Samsung HT-X40 System
Feb 24, 2007 | Samsung HT-DB120 System
Apr 05, 2006 | Samsung HT-DB120 System
59 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: