Question about Yamaha RX-V363 Receiver
Have a Yamaha RX-663 that produces great sound. Recently it's taken to shutting off and will not power on until the unit is disconnected from a power supply and reconnected. Once it powers back up it can remain functional for hours or minutes. I've disconnected all speaker wires and inputs. I've carefully hand cleaned each board, switch connection and panel. I currently have one HDMI in (my laptop) and three small low end speakers attached to FL, FR and Center. Is there any one board that I should be looking t for a short/fault?
It sounds like it's going into safe mode try testing the resistors just after the power supply you will probably find one or two at fault
Posted on Feb 15, 2014
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Posted on Jan 02, 2017
SOURCE: Yamaha HTR-5990 Receiver
I JUST EXPERIENCED THE SAME SITUATION HERE IS THE SOULTION YAMAHA SENT ME TO RESET THE SYSTEM HTR-5990 YAMAHA HTR-5990 FACTORY PRESET PROCEDURES All models require the STANDBY/ON button to be turned OFF to start the reset process. NOTE: The remote control cannot be used during the reset procedure. All necessary buttons to complete the reset process are located on the front panel of the receiver. This procedure is not intended to correct intermittent shut-off symptoms or problems MODEL: HTR-5990 (U.S.A. model/s) (BEFORE YOU CONTINUE, PLEASE READ THE ABOVE NOTES!) 1. Before you start this procedure, locate the MASTER ON/OFF button and the STRAIGHT/EFFECT button on the Front Panel of the unit. 2. MAKE SURE THAT YOUR RECEIVERS MASTER ON/OFF HAS BEEN TURNED OFF. 3. With the Right Hand, press and hold the STRAIGHT/EFFECT button. With the Left Hand, press the MASTER ON/OFF button and HOLD both buttons for no more than 3 SECONDS, AT THE SAME TIME. SP IMP. * 8 MIN. will appear on the display, which indicates you are in the Diagnostics Mode. 4. Rotate the PROGRAM KNOB to the right (ONCE) until the display reads PRESET *CANCEL. 5. Press the STRAIGHT/EFFECT button (ONCE) and the display will change to PRESET RESET. 6. Turn the unit off by pressing the MASTER ON/OFF button. 7. Wait 5 seconds, then turn the unit on by pressing the MASTER ON/OFF button. You have now reset your component to the factory settings. NOTE: Yamaha receivers dont have to be reset during normal operation. It is not recommended that you reset the receiver unless a setting has been changed that you are not aware of, or the receiver is not operating properly. The reset procedure will clear an incorrect setting that might be causing abnormal operation. GOOD LUCK
Posted on Jul 30, 2007
the last click you hear before the amp turns on is the power relays for the amp circuit,these have 2 very small copper contacts inside them which after much time get corroded and cause high resistance when they try to power up the amplifier circuit.awkward to get to and desolder but can be opened up and serviced,done mine and a few friends with yamaha amps which use similar system,had no problem since,also worth checking for dry joints around amp chip i.c legs onto main board.
Posted on May 02, 2008
Bad DSP chip. The only other possibility is if you have the "Direct" on. On the front of the receiver it's a small button. Also make sure your "Speaker Select" A/B is "on" You will see it on the display, it's also a small button on the front of the receiver. If all this is correct and you still have no audio, it's a bad DSP chip. Not worth repair, it's 400-500 repair. Not very common in a Yamaha RX-V series, but I have seen it. I'm a Yamaha Dealer. If you need further help, post a comment and I will be glad to help you further.
Posted on Aug 23, 2009
Most, but not all of the voltage regulators are cooled by the same heat sink
that the output transistors are attached to and get overheated when you crank up the volume. Although this unit has a cooling fan, after some time the heat sink gets HOT and will age these parts. There are also a group of three current limit/ voltage drop resistors supplying one regulator that will give up too. This is not for most DIY folks. Repairs are available in certain parts of the country. I know of one you can ship the unit to and get it fixed like I did.
Posted on Sep 17, 2009
I have the same issue. I took the speaker apart and tested with a meter and both the mid and tweater were wide open, in short blow out. Not sure what caused this but the speaker needs to be replaced.
Posted on Jan 14, 2011
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