Question about Yamaha RX-V2400 Receiver

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Will not turn on

When I connect the power cord to the unit I don't hear the clicking sound to indicate that it went into standby mode, therefore, when I push the standby/poweron switch it will not turn on. Any suggestions?

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6 Suggested Answers

  • 277 Answers

SOURCE: 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.

Posted on Nov 27, 2005

  • 236 Answers

SOURCE: No Power

in your power board near the back of transformer you have a backup power source of 5volts. that is for the cpu and the power relay swicth. can you check if you have that 5volts present. What i can see only in your unit is a major brekadown of your main amp section, all power transistros must be busted/shorted, and no chance even for a click on the relay. that is also feature of the protection. you wont be able to get the unit started even for a while. the fuses for yamaha do not normally blow and very often only your protection circuits enables. but in your case it is a very bad output stage now that you dont even get the display on to see the trouble in the built in diagnosis.

Posted on May 14, 2008

  • 1 Answer

SOURCE: Yamaha RX-V1 Power

Got the same problem and did some searching.
Strange thing is that next day the amp works fine.
This is what I found on

SYMPTOM: The power cannot be turned on, or the protection circuit is activated to turn off the power.
CAUSE: Fluid leakage occurs from the backup capacitor C633 0.047F 5.5V (C662 in the case of RX-V3000/DSP-AX2) on the Function PCB and causes a short with the adjacent components and between patterns, resulting in operation of the protection circuit. Fluid leakage tends to occur with this capacitor particularly with high internal cabinet temperatures, with or without the power on. Often, the leakage is only visible with very careful inspection.

SOLUTION: Two types of backup capacitors are now available with a longer expected service life. When servicing, thoroughly clean the leaked fluid from the PCB and from under any nearby components before replacing the capacitor. There are models other than those mentioned above that use the subject backup capacitor. Check them for fluid leakage and replace the capacitor as needed.
PART(S): Old
Ref. No. Part No. Description Remarks
C633 or
V3860300 ELECTROLYTIC CAP 0.047F/5.5V Vertical type
* VU545000 ELECTROLYTIC CAP 0.047F/5.5V
Horizontal type
Ref. No. Part No. Description Remarks
C633 or
C662 WD294400 ELECTROLYTIC CAP 0.047F/5.5V Vertical type
* WD292000 ELECTROLYTIC CAP 0.047F/5.5V Horizontal type

Posted on Jun 24, 2008

  • 4234 Answers

SOURCE: no sound from htr-5840 when switched on. I hear

These units have protection circuits that will prevent the speaker relay from engaging if there is a problem detected. There is also a circuit that causes a delay in the engaging of the relay to allow the amp to "settle in". This prevents the old "thump" that was common in older models when the set was first turned on. In your case, either the RC circuit is faulty causing excessive time to pass before turning on the relay, or there is excessive voltage floating around that the protection circuits are detecting and thus preventing the relay from turning on.

In any case, this will require additional diagnosis using some test equipment. This is not a problem that will be easily resolved remotely. Please bring this unit to a repair shop for an estimate. Once you have that info, we can assist with the actual repair.


Posted on Aug 25, 2009

  • 5 Answers

SOURCE: My receiver won't turn on. All I get is a fast

I am sure you have tried and disconnecting all the speakers and taking the unit to another outlet right? If it works you fried your surge and need to replace it. Otherwise the unit went into that strange power protection mode

Posted on Sep 12, 2010

  • 349 Answers

SOURCE: you had a post that said you had fixed faulty power relays on DSP-a1 - how do you identify the relays that need cleaning?

That your amp does not go into the second stage of powering up indicates a fault which is causing it to sit in non-active mode. This could be due to blown output audio module or transistors or a fault in the safety circuit itself. It is not a fault the non-technician can repair and it would need to be sent to an authorized workshop.
I have seen situations where users unknowingly leave frayed ends of wire shorting across the speaker output terminals which can lead to this sort of fault. You could check this out also.

Posted on Oct 28, 2011

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My philips HTS 3555 stopped working. The standby light comes on sometimes but when I push the button, It turns green, the fan turns on for a second, then off, then on for a second, then off again. It then...


Your unit being stuck in standby mode is an indication that its having a power problem. Remove it's plug from the wall, wait for about 30mis, fix it back into the wall, then turn it on again. If its still stuck in standby mode, then the power supply board in the unit is the cause of the problem.

The power supply board might be defective and maybe that's why the unit won't power up. Its receiving power but it cannot transfer the current to the necessary part of the unit because a capacitor, diode, etc may have been faulty. Until these bad components are replaced, the unit might not come on.

To actually find out what's wrong, you need to disassemble the unit with a screw driver and check what's wrong. You will be needing a meter in order to test the components on the power board, once you detect any bad component, you can make necessary replacement at any electronics accessories store withing our vicinity. This is the only way by which you can detect the problem.

Of course, testing the power board with a meter will require someone that has the ability. So it you can't, then you might be needing the help of a repairman or you can call a friend that has the ability to help you out.

I wish you the best of luck.


Apr 21, 2011 | Audio & Video Receivers

1 Answer

Standby light is flashing rapidly and I cannot turn on

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In some cases, the STANDBY indicator may blink slowly, twice per second. In this case, turn off the unit, unplug the power cord, and check the following points.

Make sure the speaker cables are not reversed and connected to the wrong sides (+ and -) on the unit.

Make sure the speaker cables connected to the unit are not shorted. (Check both the unit end and the speaker end.)

Make sure the volume does not exceed the level that the unit is capable of producing.

When using the unit in a rack or other enclosed space, heat may build up inside the unit and cause a fire. When installing the unit, be sure to leave suffi cient space between the top, back and both sides of the unit and walls or other AV components to prevent the internal temperature from rising.

After checking these points, plug in the power cord and use the remote controller to turn on the unit. Turn down the volume before resuming playback. Confirm that there are no problems with the speaker connections and playback performance.

If this symptom recurs, request service at your nearest service center.

In rare instances, the unit may enter standby mode and the STANDBY indicator may blink rapidly, 8 times per second. In this case, unplug the power cord and request service at your nearest service center.

Feb 27, 2011 | Marantz SR7002 6.1 Channels Receiver

1 Answer

My reciver just shutdown then went into standby mode. Will not power back on. How do I fix this problem?

What do you mean by standby mode? Do you hear the power relay switch clicking constantly, or does it just click once and turn off? In any case, it could be a faulty power relay. I just sent in my TX-SR806 for warranty repair recently, and it ended up being just that.

Nov 13, 2009 | Onkyo TX-SR806 Receiver

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Won't power up; push power button on, hear click in back left of unti, get nothing on front display and no output from speakers; as if unit trying to operate

Disconnect the speakers and see what happens. Carefully examine the speaker cables for unwanted connections (shorts).
Take a clue from when the power problem appeared. Something was moved and made the buzz a (probable) dead short.

May 16, 2009 | Pioneer VSX-305 Receiver

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Just bought refirb. Onkyo 805, hooked up front l&r plus sub and getting no sound. I set up am and fm as per manual and connected a cd changer thru the cd in via rca cables. Radio shows a signal but no...

After few sec when you turn on your receiver did you hear a click noise ? if yes your receiver is OK not in protection mode if no click noise is output protection in that case you must return where did you buy for service and update firmware a lot of update
However you can reset your receiver and debug the DSP section ( digital signal processor ) as follow
To reset
1. Press and hold down VCR/DVR button, then press STANDBY/ON button when the unit is Power on.
2. After " Clear " is displayed, the preset memory and each mode stored in the memory are initialized and will
return to the factory settings, and turn to Standby mode.
Now turn back on and check if it work or not and make sure check input mode such as analog or coaxial or optical input if stil no sound then debug DSP as follow
To set in DSP debug mode
1. Press and hold down DISPLAY button, then press STANDBY/ON button while the unit is powered ON.
The version number of m icroprocessor is displayed only for 3 seconds.
8 1.05/07903A
2. Press TONE+ button within 3 seconds above, the version number of 1st DSP is displayed.
DSP 1st:
3. Press DISPLAY button while the 1st DSP version is displayed. The status of DSP and DIR will be displayed.
FFFFFF0 0 000
To exit
Press STANDBY/ON button.
Then unplug the unit for 30 sec then plug in it should work now if not you need to return it to 1 of the service center Onkyo in your town to repair it
Good luck

Nov 30, 2008 | Onkyo Audio & Video Receivers

1 Answer

My denon avr-1906 amp will not turn on correctly. When the standby button is pressed the indication surrounding the button flashes green but when you hear the relay click in for presumably the power amp,...

The amp is shutting down to prevent further damage. This is what is sometimes referred to as protect mode. There is a problem with the final stage of the amplifier. The most common parts that fail are the output transistors. Figure on $15-$40 in parts plus the local labor rate for the total repair cost.

May 30, 2008 | Audio & Video Receivers

2 Answers

Stuck on standby

Unit is in protect mode there are a few problems that can trigger protect mode the most common is blown channel (shorted outputs). Sometimes one of the 15v regulators may go bad causing imbalance of supplys triggering protect mode. Also sometimes a bad solder connection could cause unit to go into protect also. I work for Denon authorzied repair center in Michigan if your nearby and Shipping to Michigan is economical let me know

Feb 13, 2008 | Denon AVR-1804 Receiver

1 Answer

Yamaha RX-V595A tuns off automatically

This was happening to mine also, all of a sudden. This solution came from the owners manual. Sure enough, the impedance selector was stuck in the middle , between 4 and 8 ohms....I also, made sure the speaker wires were not touching each other at the splice. Problem fixed.

The unit fails to turn on when 
STANDBY/ON is pressed, or set in 
the standby mode suddenly soon 
after the power has been turned on. 
The power cord is not plugged in or the 
plug is not completely inserted. 
on the rear panel is not fully set to the 
upper or lower end. 
Firmly plug in the power cord. 
Set the switch fully to the upper or 
lower end when the unit is in the 
standby mode. 

Oct 27, 2007 | Yamaha RX-V595A Receiver

1 Answer

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.

Nov 26, 2005 | Yamaha HTR-5150

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