Denon AVR X4000 Multichannel Receiver Can this one be repaired?

[@mikefc55]

hi 12volt guy; just wanted to say thanks for the channel. I'm retired a year now so I've indulged in my passion for tinkering on the bench repairing old stereo gear. I get lots of enjoyment watching your vids, some good tips as well.

[@turnersparadise8368]

Seriously, great lesson in trouble shooting here. Amazing, one little resistor took the whole thing down. I wonder how many hit the landfill for a few pennies part?

[@1835dueber]

replacement part = pennies - knowing which part = priceless

[@rlwings]

@@1835dueber ...And now we know which part! - Lol.

[@AstAMoore]

Holy moly! A 1 MΩ resistor (well, the glue) was all that caused the PSU to not fire up properly. Good job diagnosing it, sir. I tip my hat to you.

[@12voltvids]

I missed the resistor the first go around because there was about 2.5v on the IC side which is generally about what should be there, so I didn't pull it, and of course measuring a 1m resistor in circuit is going to give a false reading. I started checking other components and it kept pointing back to that startup bias resistor, and sure enough after pulling it, that was the fault. Caused no doubly by the circuit glue going conductive.

[@v12alpine]

Denon's are typically known for good OSD on screen menu system (1080p overlayed) which is why I chose mine. Without a remote and a TV pretty much forget about setting these things up. And pray and hope the HDMI board doesn't die which is also very typical of Denon.

[@glenngoodale1709]

Thank you for the video . I enjoy watching someone who is a craftman

[@jasonbrindamour903]

Great find! I love watching you fix stuff! I looked up this beast, yeah...I understand why it was worth it to keep. 9.2 surround 4k, bluetooth, 125watts! LOL, That's a frickin beast! Thanks again for another great fix video. I don't know why your only at 60k subscribers with the amount of knowledge and videos on your channel. And you list the product number in the title so people can specifically find something similar. I really like what you do here, never quit saving the landfill from things that only need some work to be used once again. I also have found simple failures save friends equipment, I just saved a poor abused Fluke meter for a friend, half screen, no voltage readings. He now has his first meter back and looking/working like new. It's very satisfying to fix things, there is no doubt about that.

[@markmarkofkane8167]

Multi channel. More complicated. Enjoyed the video!! You have the patience of a saint. Only 0.3+ milliamps to burn up that resistor. Correct? Based on 1/8 watt on 1 megohms. Well, that would take over 300 volts, I think. The calculation I used online might be wrong. If you provided the voltage across the resistor, it might be more accurate. At 5 volts, 0.25 amps, I think.

[@scottfirman]

This was the second unit I saw where the medium they used to insulate the chip has over time become conductive and shorted the unit. It is something to look for on all electronics. The last one I witnessed was covered in the media and required alot of cleaning and removing the reactive media. I have not run across the issue but then again, I do not work on this stuff as often. I learned a lot from you today. I know just enough to be dangerous somedays. I love a good challenge. Its like being a crime detective for a murder mystery. Who done it is usually time and age.

[@andylaurie326]

great job. the way you can pick your way through a circuit board without a schematic is the mark of a real pro.

[@ElectoneGuy]

I find that glue in the newer equipment is much more benign that the stuff they used in the past. Or maybe, it just hasn't had all the time to turn corrosive/conductive yet...

[@budandbean1]

Hi Dave, I just had a chance to watch this and had to let you know what a nice job you did on this one. Fine job! Kills me that as complicated a hunk of equipment like this one is, that it can be totally shut down by a 2¢ resistor. (If it even costs that much) This was fun to watch, thank you for your expertise! Buddy

[@lelandclayton5462]

The company I work for does AV Integration and I have a few of these AVRs we replaced that is too old for credit/return so I brought them home. They're honestly easy to fix, about 90% of the time it is a Power Supply issue. the 10% is a blown power Transistor or something in the speaker protection circuit. From my findings that 1meg resistor should be a larger wattage. that 1 meg you replaced looked like what a 1/8 watt? I think the one I repaired last year I used a 1/2 watt (all I had in stock), I could of gotten away with a 1/4 watt. I had thought it was the glue as well but sticking the meter probes into it didn't give me any readings unlike the super old stuff from the 70's early 90's that reads anywhere from 10K to a few Megs. Those AVR receivers from Denon and Onkyo are bad ass and too much to keep track of. Some models even have more bells and whistles and some have less. I deployed an Onkyo a while back that had a built in 4x2 Video Matrix. I'm trying to get the boss to let us do more Denon receivers since we typically deploy HEOS amps and integrate with Alexa. Strange that Onkyo/Pionner hasn't gone that pass yet.

[@ricfair9919]

GREAT JOB I was glued to the video, waiting for you to home in on the problem! You have so much knowledge.

[@brianthompson1138]

Outstanding video! Great work. The AVR-X4000 came out in 2013 (had a 3 year warranty from Denon) and cost US $1300 new. Rated 125W/ch X7 into 8 ohms 20-20K 0.05%THD. (Heh, my old 2 channel JVC has a transformer that big). They still command US $900. Looks like it can do just about everything. I have a Denon AVR-1713 from the same year. Still working fine, but it doesn't see that much use.

[@peteb2]

Reason why i often think twice people come ask me to look at this kind of kit. Worse thing is they expect a cheap repair job as in oh i'll get you some beers for the work kind of cheap.... i suppose they think since i aint running a repair shop then they don't need to pay actual money. Thanks for showing us this things repair though.

[@rlwings]

I have the 2018 version of this model (Marantz SR7012) Which is the sister model of the Denon X4400H. It has even more outputs and functionality today! Thicker heatsink and 2 cooling fans... It's extremely crowded in there! And if it stops working I'm going straight to that resistor, lol... 5 cent repair job. :) Imagine how many people throw these things out when all it would take is a cheap part and a soldering iron... We pay for knowledge not for work.

[@12voltvids]

Clean the glue. I used to piss off customers at the shop I worked at when they wanted a detailed break down of work performed. The conversation generally went something like this. "You charged 120.00 to replace a 3.00 transistor and a 50 cent resistor. I'm not paying 120.00 for something that took you 10 minutes to do." I got out my invoice, and wrote the following. Transistor 3.00 Resistor 0.50 Labour to change transistor 8.00 Labour to replace resistor 2.00 Labour to open and close cabinet 10.00. KNOWING WHICH TRANSISTOR AND RESISTOR TO REPLACE 100.00! Got them every time.

[@AThreeDogNight]

@@12voltvids, LOL!!!!

[@cat-lw6kq]

Same with fixing a bad solder connection. I'd tell the customer I also did a color alignment on their tv.

[@12voltvids]

@@cat-lw6kq Knowing which connection to resolder also got them.

[@cat-lw6kq]

I usually just told them there was some loose connections in the chassis and I performed a color alignment.

[@WackyT08]

I love my Denon AVR-3300, which is pre-HDMI. Still works great, and sounds fantastic. Have replaced the cooling fan, and main power capacitors through the years.

[@multicyclist]

Outstanding work! That is the way it should be done. Thanks for sharing. Denon's tend to be interesting equipment. I own several of them and my favorite is an old AVR-5700 (46 lbs) that was the worlds first Ultra THX receiver which works perfectly (after simply re-flowing some solder connections to some audio pins). Great video!

[@pliedtka]

Have Denon 3801, similar functionality no Hi main out, no HDMI, with Pre-out, and still need remote control to access a lot of the functions, also Masters Degree. My had out transistors blown on surround channels - previous owner had run it quite hard. And most of the receivers don't have enough heatsink to support all channels running, with parts packed like sardines inside the can - harder and harder to service the damn things. At least the one you got on the bench is more tech friendly - more accessible boards. Thanks for video - learned something new again👍

[@TheDecguy]

Thanks great video. As for these A/V receivers, I think they are better as door stops. I had one of the Pioneers and wanted to adjust the tone control just a little bit. Manual wanted me to first eq my room, then set up a series of curves based on my preferences, etc. Instead I called a friend up on the phone and asked him if he wanted a new Pioneer A/V receiver for free. I was glad to get rid of it.

[@a1rvmastertechs204]

I'm impressed with you big time, you didn't try to hide 5hing you just clearly are a sharp man. I've got a Yamaha receiver that a customer asked me to fix, FYI I am an RV tech and have always loved electronics so I took this Yamaha apart found that it doesn't have secondary voltage present and to be honest I sort of stopped then got busy and haven't had time since plus it's a little over my head. You will know this thing cost money when you see it as it's built awesome CNC machined parts piano black lacquer hardwood like that used on their pianos and heavy l, oh my it's at least 70 lbs anyway he has had some bad luck well so have I to be honest but the stereo means more to him than his wife lol he loves it so I want to ask if you're interested in possibly working with it? I think you would love the build and your knowledge is more than enough, there are no burnt parts, I'm sure it's in the power supply so please let me know if this is something I can ship your way and any other details in regards to it's returned to life and you and I will make one of the greatest people I've met very, very happy thanks

[@coyote_den]

Had a fancy ultrasonic humidifier that occasionally wouldn't power up. SMPS had expected voltages on the filter cap. Then I noticed when it was plugged in, there was a slight fizzing noise and actual bubbles coming from under the transformer! It had humidified it's own power supply and some kind of electrolysis was going on. Not enough to cause a short but it killed the output. Once it dried out it worked. In this case, liberal application of hot snot solved the problem.

[@raymondleggs5508]

The humidifier Humidified itself. Humidifier is now on suicide watch.

[@richardkelsch3640]

To set up modern video receivers, you have to plug in an HDMI monitor. There is usually a menu etc. for adjusting.

[@ponyboymidnight]

I have the same unit. Gladly, I have yet to have any issue(s) with it. I'm happy to see this video so I can see the complexity of the circuits. It would be well out of my ability

[@daveyginn]

Fantastic work sir! A friend has just sent me the AVR-X2400H, which has the red blinking light issue you diagnosed in another vid. I'm really grateful that you share your knowledge. You are saving a great deal of folks an awful lot of time. I'm subscribed and along for the ride. Cheers Dave.

[@Jeff-wb3hh]

Thank you for this video. This seemed like a very complex diagnoses with a very simple repair. I just wish I was as knowledgeable as you, so I could repair my Denon AVR-5800 with the same symptoms, but probably a different problem due to the complexity of these units.

[@redrooster1908]

I have the Denon AVR-X4100W 7.2 AV Receiver with Dolby Atmos. It is very similar to the X4000. It takes a while to get it all set-up. But, when it is all done, it's a lot of fun. The sound's very good with two subwoofers and MANY speakers running.

[@mcramp20]

That's why I was so happy you helped with my Onkyo txnr 709 the connectivity!

[@wantAvote]

Thanks. Nicely done. You've done a nice job troubleshooting and showing your process, I have a Denon and my surround speakers play at low volume compared to typical. One day...

[@Mosfet510]

Even an RS-232 lol it's not missing any inputs that's for sure. Another great video and nice to know about that board glue stuff turning rogue on us with time.

[@d.l.2401]

Great video. I have the X4000. Very nice unit. I use it as a Preamp Processor except I power only the Front height Speakers from the X4000. All other Channels are powered by an Emotiva LPA-1 7 Channel Power amp. This thing sounds great and the X4000 setup guide is amazing. This is a very capable receiver. made in China. Denon should have never out source to China. Sound United now owns Denon, Marantz and some others. They are doing really great things on their new receivers in 2020.

[@AThreeDogNight]

That's another great save. You have the patience of a Saint, no doubt.

[@beatvampire]

I was as happy as you when it powered up ... keep spreading the joy of the eureka moment !!!!!

[@12voltvids]

It is always a satisfying feeling when something that is broken comes back to life.

[@beatvampire]

@@12voltvids Thats a great line for a marriage councillor to use LOL

[@midotechtips7449]

I love this amp I have Denon AVR1100 and I am really happy with it another tip you can remove this glue if you apply Aceton this can help losing thing out by the way nice video keep do more Mido from Germany

[@michaeldennis3680]

Great job, I bet this thing really surrounds you when watching a flick

[@josephsirois2353]

They over complicate these stupid things to discourage repair, very nice technique finding that one mega, woulda never thought it only needed a $.25 part,Please keep these videos going thank you

[@12voltvids]

They do this so they can meet stringent standby energy consumption limits. A switching power supply for standby is probably close to 98% efficient meaning on standby the unit draws less than .5 watts. Conventional liner supply would probably consume 3 to 4 watts on standby because an iron core transformer is perhaps 50% efficient and then there is the heat generated in the 5 volt regulator burning up energy.

[@timka880057]

I hate that circuit glue stuff too, I had a LED TV that where the glue was, the components heated up underneath it and caught fire. It damaged the board, I couldn't find a replacement board. It was in the audio circuit power coming into it. The amp had quit working. It was surface mount components that burned to a crisp.

[@12voltvids]

I have a sky bell camera that was donated by a viewer that was burnt to a crisp. You haven't seen the video because I didnt fix it, but perhaps I will post my findings. I am hopeful that I might get it going but realistically it probably will never work. Was blown when a lightning strike was close by.

[@FellOnMyKeys]

lol I appreciate and enjoy your first cut no editing, especially the "how the hell do i....oh screw it!" parts. Also get a laugh at the quick flip of wanting to throw it out the window to wanting one yourself after checking out the back panel hehe. Great work tho bud! This is exactly what I enjoy doing most in my spare time. I purchase what were once $1000 and over AVRs off C.L. for $20, then open then up, clean it up and make some mods, and keep it out of a landfill

[@meahall]

I knew that brown glue stuff from the 80s tended to go conductive, but I've never seen the same problem with the white stuff in newer equipment. I'll keep an eye out for it in the future, thanks.

[@12voltvids]

The brown glue wasn't brown when it was applied.

[@gitit20x2]

I have that exact av receiver and I like it, it has been trouble free for 3 years now

[@shaunrichards744]

You may have just replaced a resister but you did some prep work to make sure it doesn't short out again. 👍

[@nor4277]

Nice save ,never seen a amp with that much stuff on ,I bet you are right it probaly cost a fortune.

[@rlwings]

The new model (AVR-X4500H) in Canada is around $1,500

[@meepk633]

Glad youtube suggested your channel. I like to watch repairs, but most people don't explain what they are doing or they are just annoying (political, constantly sarcastic, etc.) Thanks.

[@MovieGuy846]

Great video that explains power supply concepts. Hope this will help me to fix a broken Marantz that I think has similar issues.

[@garyworkman75]

Just had to fix one an AVR-x1200W for a friend. Contractors cut the wire to his garage subpanel. Killed 4 diodes, 400v capacitor and the line filter.

[@mrmatt148]

Good diagnose/repair video. One thing I noticed during the video, after 38:00 - 38:06 there is a voice overlayed over yours while your mentioning the glue! Very strange and just thought to share.

[@Swenser]

nice one.I learned my lesson on these kickstart high ohm resistors by poking around with leads on a problem power supply. The tiny voltage on the lead for diode test was enough to kickstart the chip and I realized of the open resistor problem. and i second that about the glues going conductive. I've had that too, i've got your meter too. fluke. its the best jerry. the best.

[@zx8401ztv]

Smashing job dave, i bet you were wearing a deer stalkers hat while tracking that sneaky devil down :-D That really is a beast, thankfully it wasn't the horrible digital side. I was expecting dead output capacitors or diodes, that 1 meg resistor was a supprise.

[@stefanmarinescu5086]

very nice mini-tutorial about smps-es

[@markanderson350]

How much voltage drops across the 1 meg? There is a maximum voltage drop allowed across a resistor and breakdown can occur that has nothing to do with wattage. Its usually safer to put two in series.

[@12voltvids]

I figure that high frequency, high voltage ripple from leakage due to that glue back fed into the resistor and burned it out.

[@markanderson350]

@@12voltvids it is also an issue when you drop over 100 volts over a high value resistance. Nothing to do with heat, just a breakdown.

[@chris7662]

Just a pleasure watching.

[@kennethcoutinho4439]

Awesome 👌 seeing you trouble shoot used to work for VV and Sons dubai repairing these amplifiers in 1996..big headache to open and repair...no proper servicing facility....

[@12voltvids]

Never again. These remind me why I left the service business 21 years ago.

[@thermionic1234567]

This is why I prefer separates. Too much is crammed into a small box!

[@thermionic1234567]

Demo Separates as in tuner, preamp, amp, signal processing, etc.

[@JunieVM]

I have the same AVR, if it’s dead I know what to look for first. Thanks Dave.

[@anthonysteventinsay5812]

Can you please show where you put tips of tester, to have idea. Thanks!

[@Starphot]

We were warranty repair for these and the like. The thing we didn't like is that these companies sent the repair manual, but not the owner's manual. No instructions on how to operate these things in the repair manual.

[@knottreel]

Beautiful bit of troubleshooting; best I've seen.

[@12voltvids]

Thanks

[@scottparker1220]

They zip tie guy is ok it the freeking glue they used and should have known from past adhesives that it shorts after a few years. Everything is made to break or they would go out of business. Look at 10k hour less going out after a few hours. Great job.

[@DicoMildre]

I was about to ask why this thing justified the repair money + two way postage cost, then I saw the gazillion input/outputs on the back. at least a $300+ amp, and of course a lot more to buy one from new.

[@redemptusrenatus5336]

It's a $900 7.2 channel 4K receiver on Amazon... not cheap even if discontinued (just because Denon wants you to buy their 9.2 channel version).

[@ED4action]

holy cr@p that thing has a ton of input/output/speaker options.. nice job troubleshootin' i bet there's a kitchen sink on that thing somewhere..

[@aegisofhonor]

I have an Onkyo AV amp popped something a few years ago, I still have it, I may check it out and see what's wrong with it.

[@thermionic1234567]

I noticed this board is lead-free. I’m at 31:47 as I write, but I’m gonna guess crappy, low-lead or lead-free solder is the problem.

[@karlietimball9668]

I like when you got fired up how to turn the damn thing on and get it running too funny great video

[@jackturtle131]

when it came out in 2013 it was an State of the Art AVR

[@jesusmoreno5568]

You're amazing!!! I enjoy very much watching your videos!

[@SuperBrainAK]

hey there, im currently watching this on my Denon AVR-3805 no HDMI unfortunately, and yes you do need a degree or spend an afternoon or two dickin' around with it to figure it all out. hell of a unit for sure. one thing I will say with a high dollar unit like that is yes the wire routing does matter, you traced the 5v supply that carries a few amps of SMPS right near the main amplifier circuits. so it could pick up some buzzing, probably not noticeable for most but the people that would buy such a beast will probably notice :) thanks for the repair video! once again conductive snot formulated so you need to buy a new device when they make a new model! even though it blew out a 3 cent part!

[@SeliJue]

This is a common problem here in Europe because of 230VAC and >300VDC at the filter capacitor. Each resistor has a max. operating voltage of may be 200V, if higher he can fail. Better is to divide the voltage with two of the same resisitors in series to reduce the operating voltage of each resistor. Some designs do this!

[@mastertechlima1067]

No it's exactly the case.that power supply use 3 resistors of 1Mohm

[@godfreydesilva5222]

Excellent diagnosis. Well done.

[@alanarmstrong2323]

I love your vids keep up the awsome work !

[@Dillisive]

You should do more Receiver repairs

[@12voltvids]

I can only fix what people bring me. Remember I am not really in the business. I don't go looking for work. I do repairs as they come in.

[@christiancolon5770]

@@12voltvids I have a denon 4300h. I was listening to music and out of no where a speaker blows and I see a little smoke come from center of receiver. It’s in open space. Now it boots up but turns off with a red blinking light… any thoughts?

[@BABYGODZILLA2009]

Hi 12voltvids, as many of your viewers, I am a big fan of your vids. Just love the way you explain everything on the go and speak out loud while you trace the fault. Amazing. Just one question, I have a Sony MXD-D3 CD-Minidisk player with no power. It is such a great unit and I dont have the heart to throw it in the bin. I am at a lost for the past 4 years with no luck. The deck does not power on at all. When I plug it, I can hear the relay clicks and the main transformer turns on. But thats it, nothing works, not even the standby LED is on, non of the buttons work. All i can see is that, when i plug it in, relay clicks, and you know those VFD filaments goes across the display, they come on and you can barely see it but they are powering on. That is it, I've checked two voltage regulator transistors and re-soldered all the joints on the entire unit, still nothing. I've given it to the Sony dealer here in my country (they are no better than a child with a bee bee gun) and I've given it to another 3rd party repair shop, still no luck. Can you please help me? or point me in the right direction? It breaks my heart to throw this in the bin because when it was working, this was such a great unit. It even has the CD-TEXT function which will automatically copy the title info to the MD. Please help me, I am truly at a loss on this one. I did not replace any components on the power supply section, I did some voltage testing, the VFD gets about 20 volts. Not sure what the hell is going on, its like the unit is in a COMA or something. Or can i simply send you the unit and you can have a look at it like what you did here? I am willing to pay for shipping both ways and of course your charge. Look forward to hear from you.

[@NYangryguy]

I have a denon avr x2000 I would like fixed. It goes into protection if turned up to -35db or something drawing a lot of current comes on the same circuit like a vacuum.

[@mrsemifixit]

Could you explain the purpose of the relay at the mains side?

[@12voltvids]

To cut power to the main power transformer, and all the high power amplifier circuits it powers up when the unit is off. When you turn the unit on, the relay energizes and powers up the rest of the amp that is totally off, not sleeping like those circuits in the standby circuit.

[@mrsemifixit]

12voltvids But doesn’t the line energize the relay to turn it on? Wouldn’t there be constant power to the amp circuits even in standby?

[@12voltvids]

@@mrsemifixit no, the relay is controlled by the main microcontroller. That interconnect had the 5v standby voltage, ground and a return to control relay.

[@DollarbillDollarbill]

Very nicely done

[@johnohara54]

Mike, watch your videos all the time; I retired from phone company as a 35 year electronics tech and want to stay sharp. Do some repairs myself. When you say “ connections don’t look good” could you be specific? Are they oxidized, mushroom away from the board, discolored, etc? I like to see if I can guess the fault before you get to it and do pretty good. Keep thE videos coming, I am addicted.

[@12voltvids]

Who?

[@ralph9987]

I have just purchased a denon 1709 unit, everything works fine, I just don't get any sound out if the speakers and have tried various inputs including AM FM radio Where would I start looking please? Thanks

[@12voltvids]

That's the understatement of the year. Everything is fine just no sound. No everything isn't fine. It's broken. Could be just about anything that's at fault.

[@ralph9987]

@12voltvids I realise it's broken was hoping that your experience may help me with this

[@Gummi300]

Thanx for this video. It helped me stacks. Keep up the good work. By the way, this power board looks very much like the one found in a Marantz SR7005. I mean almost exactly like it

[@12voltvids]

Danon and Marantz same company now.

[@Gummi300]

@@12voltvids Hi.Hoping you can assist me pls. Since changing the one blown component...TOP258MG, i could power up, I get display, relay kicks in. But I get no sound and I also cannot see speakers connected on front display of my Marantz SR7005. Any advice would be appreciated.

[@12voltvids]

@@Gummi300 sorry don't have a clue. I don't work on av receivers. This was the exception because i knew going in it was a power supply. Had it been anything more i would have walked away. There is a reason why shops avoid these receivers. I have a few of my own that are collecting dust. I won't even fix my own.

[@dwaynemccurley2931]

learning on every one of your vids.

[@rodneybrand8521]

You are the master..

[@SuperKingslaw]

Great video! And I loved the music!

[@AQAVAR]

Good job . The only thing i guess you didn't check Power RELAY on power board. Why? Power Relays should be checked at first. Maybe you did witout camera. So how did you know that wasn't power Relay?

[@12voltvids]

Power relay isn't going to do anything when the standby power supply is dead. What do you think controls the power relay?

[@AQAVAR]

I just fixed one with Power Relay problem but instead replacing it i just adjusted hight of contact by plastic shim. It works OK. Do you thing it'll last? Will it make problem even biger? Thanks.

[@Watcher3223]

Is it me, or has Denon's quality really gone downhill compared to how they made stuff in the 1980s, 1990s, and the 2000s?

[@mxslick50]

It has gone downhill quite a bit. I did screening rooms for celebrity clients, and used a lot of Denon units. The early ones (pre-HDMI) still worked in audio, but when some rooms used them to switch video as well I had to upgrade them. The newer ones had about a 5-10% defect or failure rate, one was even non-functional right out of the box. (It would power up but had no video or audio output at all.) I used only the line level audio outs, feeding into a professional cinema processor, only once did I use the Zone 2 speaker outputs for sound in the "lobby".

[@Watcher3223]

@@mxslick50 I agree. I'm also not too keen on Onkyo, especially after its acquisition by Gibson. I guess that leaves Yamaha as a choice for reasonably decent mid-fi if you're buying new equipment.

[@rjdalchow]

@@mxslick50 Sad to hear this. I have a Denon AVR85 that I bought in 1998, after my Onkyo A7090 completely fried. It still sounds wonderful, and never a bit of trouble with it. It does tend to run a bit hot at loud volumes, but a $10 8" fan blowing across the top took care of that concern (dropped the temp by 30 degrees).

[@pmatrisotto]

I have recently obtained an older denon av receiver. The receiver turns on standby light is solid red, pressing the standby button, it blinks green, i hear 2 relays clicking and the receiver shuts down, standby blinks fast red. Im looking for someone that can repair, any suggestions? I can likely repair myself if i can find blown component but im not 100% sure on how to troubleshoot.

[@AlanLiefting]

Why do you use a pair of scissors to cut component leads when you have a pair of side cutters on your bench?

[@12voltvids]

Don't knock them until you have tried them. They cut much better and closer than side cutters. They also cost about 10X what side cutters cost.

[@bunt0000]

Hello! I have the same receiver, its working fine, BUT the buttons in the front are not responsive. Its not like I have used the amp from the buttons, 99% I have used the control, but the buttons in front don't help navigate/toggle through the menu/settings. Any Idea what could be the issue? The amp has never had any problems. Where I live, we do get power fluctuations, now and then.

[@ShaneMartin-ks3bl]

I have a Denon 2309 CI it Powers up the tuner comes on for a few seconds and then it clicks back off what causes this?

[@charleslane2735]

I have a sony ec909ip that's not working right,and I can't figure out what's wrong with it,it a lot newer though, about 2010 or 2011 to be exact

[@surgingcircuits6955]

I am curious as to what gives the confidence that the resistor was burned out due to the glue going conductive vs something else upstream/downstream failing and being the cause. Is it typical in repairs such as this to be able to assume the first found issue is the root cause? Or, will fixing it just buy a little time until it happens again? Thx.

[@12voltvids]

From experience I have found that circuit glue had caused many faults over the years. When it gets old it gets very crusty and starts to become electrically conductive. This has been an issue for many years. Silicone rubber does not break down like other types. The yellow crap was the worst. It turned Brown and turned into a resistor. Now I this case the set failed during a power surge so that could have caused it, but the glue was removed as a precaution because it has a history of problems.

[@surgingcircuits6955]

Thx!

[@bones007able]

Have you ever done a video of measuring and servicing SMT components? when ever I see them I usually give up because the stuff is just too small for me to work on...

[@GaragemDoChines]

Do you know wow to program D810K013DZKB4 from pioneer DSP board? The receive die no sound

[@KneppaH]

the best way to configure those amps is through the internet browser on your computer.

[@LarryDeSilva64]

Great job at troubleshooting and finding the culprit was one lone 1/8 watt one meg resister.

[@12voltvids]

Many times a lone resistor is the cause of a fault that takes the entire unit down.

[@sureshbabu-xp4xb]

Are all the avr brands the same so far as ease of repair is concerned?

[@12voltvids]

No and i generally will not work on these units. Every time i see one it reminds me why i retired from the business 20 years ago. It's sure nice to be able to say no now.

[@Rcmodelgeeks]

Yeah those A/V Denons are great when you have the remote. Configuring them without the remote is nigh on impossible.

[@VaporheadATC]

Good vid. I have this same receiver, and hopefully mine doesn't fail, but if it does, I have an idea.

[@marcdich9066]

that denon unit as most newer denon and some older ones from the 90,s need the remote to allow tuning to be adjusted but as far as that unit yea its a beast i own one but not a 4000 series thats a 12 .1reciever very very very nice

[@tedvanmatje]

Great job man! Tell you what though mate....if the audio stops working on one of these Amps because the digital board has gone 'tits-up' - run away as fast as you can. :) If running away is not an option - then a tactical retreat might be. Thanks for posting!

[@12voltvids]

I am all too familiar with the digital board failure. I walk when that is the fault.

[@Cinemagoer_64]

My Denon avr receiver has a problem the left speaker keeps going off and on. When I touch or press the left terminals on the back of the receiver it comes on temporarily and then it will go out again. Any idea of what could be wrong?

[@mastertechlima1067]

Solder cracked.

[@abelabner]

Awesome thank you for you tutelage!

[@decosse01]

Very instructive and enjoyable to watch too - thankyou! I have a different problem with my AVR-X3400H - all sound just suddenly quit in mid-sentence while streaming (otherwise the video continued playing normally); same from any source, won't even play the test tones. So something 'common' in directing signals to the outputs (or a common output stage power supply maybe?) It's knowing 'where to look' - I can diagnose electronics, but not working in this particular field, working without schematics is a challenge. Any tips would be most appreciated on what area I should be looking at.