The sherwood rx-4109 is on and the standby light indicator is illuminated. Turn on a program, i.e., the AUX, and the light goes out, a few seconds later, there is a click, and then the unit goes back into standby mode. what is going on?
SOURCE: sherwood rx-4109 power shuts off
The output transformers may-be gone
looking at +$50 AUS
for just the parts
or a licensed service
for about $150 AUS
SOURCE: trying to program my At&t Uverse remote to my
Sherwood
Receiver/Amplifier
5027
Sherwood
Receiver/Amplifier
5027
always press the mode key of the device they want to control before pressing any other key
Power on the device
All the Mode keys should flash twice.
SOURCE: Sherwood RX-4109 receiver has no
Maybe a shorted right speaker took out the other channel. Does it turn on now? Generally speaking, an amp protects itself from heat, shorts, overloads and operator exuberance 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.
You can test the speaker for open or short by touching a small battery to the speaker wires. It should make static or click sounds. If not, it's dead. If it sparks and akes no sound it's shorted and dangerous to any amp.
SOURCE: The problem I ran into
Hi amit2817,
Your unit gone to overload that caused the subsequent shutdown. To isolate the input and speakers from fault, disconnect all input cables and speaker wire from the unit then turn it on naked. If the symptom still there then this is a clear indication that the fault came from the unit itself. Most common caused of this problem is the sound output circuitry and the power supply. Most common affected parts in the output section is the output IC/transistor(mounted in the large heat sink). It will fail because of exposure to excessive heat due to frequent high volume and or because of aging. Bad solder joints is also to consider to this section and also to the power supply section. Because of heat build up, most of the joints dried resulting to poor flow of the supply and trigger the over current(overload) protection circuit. Leaky electrolytic filter capacitor is also one of the factor in this fault. It will produce an out-of-regulation to the power supply output. You must have a capacitor checker to determine its condition. Sometimes it has a bulged/dome at the top but not all.
If you don't have necessary tools and test instrument and can't troubleshoot the symptom, I would advice you to look for an experienced technician to isolate the problem.
Hope I helped you.
Have a nice day!
Thanks for using Fixya.
SOURCE: I have a sherwood RDV6095RDS
Generally speaking, an amp attempts to protect itself from heat, shorts, overloads and operator exuberance by refusing to turn on or stay on; or it may turn on but produce no audio to the speakers.
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 'nekkid'. 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 at the speaker as another possible root cause for intermittent shutdown.
Unlike the budget stereo receivers now flooding the entry-level price points at dealers across the country, the Sherwood RX-4109 is designed and built in-house with the same quality and attention to detail we have been bringing to our audio gear for the last 50 years.
With 105 Watts RMS per channel, phono section, binding posts, a versatile remote control and switching for two pairs of loudspeakers, the only thing that bespeaks the word "budget" about the RX-4109 is its modest cost.
MSRP 179.95
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