20 Most Recent
Yamaha HTR-5150 Questions & Answers
It will turn on
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.
NO SOUND
hi, i had a problem with my sony unit that might be similar to yours (worth checking anyway).
If the input is good and the output is missing or not there, If you can disconnect the output from the unit then check for an output from the unit . Sometime you have to remove a unit from the circuit and then check it out. If this is O.K., you have something in the rest of the circuit loading it down. But at this point you know this part is working O.K. You might find your answer somewhere down the rest of the circuit.
hope this will help.
Not powering on
1. The power cord is not completely insered.
2. the impedance selector switch on the rear panel is not fully set to the upper or lower end - (set it when the unit is in the standby mode)
other then that, you will have to call for a service.
Yamaha rx-v671 usb overload issue
(francais) hello in my issue the probleme was a little resistor r027 it's in this red zone and very ugly. easy to find. a friend was unsolded the resistor and weld a little wire after wash with isopropanole alcool.
the resistor test the tension when we plug usb thing. less the resistor the usb ports don't work. you can buy r027 for 2 euros for 100 pieces.... or 2 euros for 5 10 pieces (funny).
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