Yamaha RX-V367 Intermittent shut down and glitching display. The long road to a simple repair!
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- Опубликовано: 2 июл 2024
- A Yamaha RX-V367 came in with the complaint of shutting down intermittently and a glitching display. I found a single bad capacitor in the power supply circuit and could find no other issues.
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00:00 Intro and first tests
02:49 A look with the FLIR camera
05:12 Power supply schematic
07:29 Disassembly
08:00 The STK output ICs
08:39 Some voltmeter tests
11:04 Externally powering the board
17:05 Some voltage measurements
19:40 Reassembly
20:09 More FLIR results after repair
21:26 Final thoughts/closing words 
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I replaced the bulging 10,000uf capacitor and that fixed it. but I also pulled off an adjacent 4700uf cap because of reverse perspective and my lack of attention ; obviously had to solder it back in. The receiver works now thanks to your video.
Because you are a real technician who doesn't just fire the parts cannon.
Interesting use of FLIR imaging! Now I want one of these devices 🙂
Thank you for saving another usable unit from the jaws of death. Support "Right the to Repair" worldwide!
Interesting!
The control board on our wall oven just started shutting down after about 45 min. of oven use at 350F, it's around 25 yrs old. Checked the only two capacitors on the board, and they weren't high on esr. They actually used nichicon 105c caps when they made it. Checked all solder joints and didn't really find anything, but did hit a few on the main supply coming into the board especially at the relays, checked it and still would shut down after about 45 min running the oven. Couldn't figure out what was causing it. Finally decided to just go ahead and change out the two caps with new nichicon 105c caps. Really haven't had a chance to 'stress' test it just yet, but has stayed on longer than 45 mins now. We shall see! ;)
Thanks for the video, love your channel!
Got exactly this fault, and had just done virtual the same fault finding. Just waiting on a new cap arriving. Then i saw your video. Sure wish like you i just changed the capacitor.
Great job showing us how to troubleshoot ic's with a schematic. It just shows how much you can do with a simple multimeter.
excellent way of finding a problem.thanks
i have watched most of your videos i love to watch it also makes my knowledge a bit bigger
Excellent clear and informative. Love your work. Have this same unit from new in 2011. Slow volume start on AV4 (up to 5 mins) and after being off for a week recently kept auto shutting down after a few seconds.
That Flir shot was awesome. Great video and informative..
Great job with the troubleshooting/diagnosis.
My receiver does the same he turn it on and it shuts off I’ll take the cover off clean it with myself closest recliner blow it off let it dry really good and it’ll work fine for about three months till the best builds back up on it and it’ll start doing it again I just fixed it today staying on no problem after a good cleaning
Thank you for your helpful comment. This guy is so good but he might as well be speaking chinese (over my head). I wish he would at least sum it up at the end in lay terms we can all understand.
I 'd be willing to send in my Yamaha just to watch the repair work! It has a power supply problem ( according to the codes on screen)
Hi great video as always , just wondering which ohms law calculator you were using.
I would always replace a bulging cap.
Thank you for great video. Mine does the same thing intermittently, I will open it up and check. side question, can one replace the STK's with something else?
One thing with my Yamaha ... it needs the controls cleaned every 6 months... attracts dust like no tomorrow... where as my optimus receiver from RS has never been cleaned and still works great after 30 years.
Are you using Deoxit F5?
Seeing 400 mV of ripple (or ~1.1 Vpp) on a supply of only about 8 V= with a substantial 10,000 µF filter cap should have been a clue, if the visible venting wasn't enough. The high ESR found comes as no surprise then. This part must have developed excessive leakage despite being operated well within spec... quite possibly just a bad apple. I won't be surprised if the replacement makes it another 15-20 years.
loved your video. I need help my bluetooth on my unit is failing, keeps disconnecting from my tablet and im sure its not the tablet because the tablet works good on another unit. how do i replace or fix my bluetooth in my avr rx-v681?
Great video! Where did you get the schematic for this receiver? Do you have more than one source for service data?
I have some from being factory authorized, but mostly elektrotanya.com, and hifiengine.com
I’ve rx-a850, using it since 10 years. Yesterday it started to shutdown in video mode. When I connect through Spotify nothing happens, but when I switch to Apple TV input, tv output it shutdowns randomly.
I have a Yamaha AV RX-V1065 that when using the tuner is intermittent. Any suggestions where to look?
Hi..What is your assessment of this model, is it good or not?
I to have a Yamaha a/v receiver RX- V479. the issue i'm having with is that i can turn it on and i can hear the contactor kick in but no sound if i turn the volume up i can hear the hissing but no music. Weather it's Bluetooth or radio do you have an ideas.
So disappointing to see STKs in a Yamaha. I have an RX-V383. It looks nearly identical to this except it has front USB and 3.5mm audio inputs and Bluetooth. The RX-V367 is several years older than the RX-V383. Out of curiosity I did a bit of digging and found that you can update the firmware on the RX-V367 but you need an externally connected CD or DVD player connected to the receiver via the TOSLINK optical output on the player and the optical input on the receiver. You burn the firmware to a disc and basically "play" the file into the receiver from the connected device. I thought that was a clever way to update the firmware. The firmware updates functionality of the HDMI switcher to support 3D. Which by now....who cares?
Why would this yamaha receiver switch off when you press tone control? Thanks
So, is there a better IC that you might drop in for the STKs, as a matter of maintenance?
Sometimes you an find higher powered versions. Like replacing an stk4048 with a stk4050
Hello, I connected my RX-v367 to 220 v and it is 127 v and everything went crazy, the display stays with out/1 on. When I turn it on, the display turns on in a square and then turns off. What I do, I'm from (BRAZIL). Thanks.
Wow!
Two questions the first question is where did you get that infrared camera or what model is it and what software do you use?
The second question is, how did you come up with those schematics because I have no idea where to go to try and get them?
The infrared camera is a FLIR one pro for android, As far as schematics I use Hifiengine.com and elektronia.com. I do have many factory service manuals being a factory authorized service center for most major US brands since the early 90's
I just bought this model for 20 dollars at an auction yesterday and I turn power on and it turns right off 3 times then dont cut back on unless I unplug it and plug it back in but continues the process. I checked all the caps and no bulges. So where to start now. Any ideas would help great.
Probably has a blown channel with a DC offset. Measure all of the common leads of the emitter resistors and see if one is over a volt or two upon power up and before it shuts down.
@@norcal715 I fixed it. I unplugged the av boards and it started working. Must've been a bad connection or something in them. I dont need them anyways since I use HDMI cables. But thanks for all your help.
Dude I can’t even do a fault check the power button work work when I press the two buttons in to see if there’s any faults
What kind of Flir Thermal Camera do you use, may I ask?
Flir One Pro for Android
I have about a half dozen similar amp IC's new unused At least one new in Yamaha box. One was used once for troubleshooting then repackaged. I'm retired and have no use for them. If you like I can arrange to send them to you - just reimburse for shipping via Paypal. Not sure if any of them are needed for any of the ones you have - as I recall it's usually the three-channel one that goes bad, of course sometimes just solder connections. Let me know, I can be reached thru Facebook or by email. I have a RUclips channel too, but don't really post anymore. edit - yeah I have the 433-330 new in a Yamaha box.
I am definitely interested. Email me details of what part numbers you have Norcal715videos@gmail.com
I am sure you said it previously and I forgot. What Flir are you using?
Flir One Pro for Android!
@@norcal715 Thanks for the info. I never knew there was a high res phone compatible flir out there. I might buy one.
Hi I got my Yamaha. Rxv- 485B. The problem is the power button color hunged. Looks always stand by, and I can't open. Is there a serious problem on my receiver? Thanks!
Syntax error! Be a little more concise on your issue.
Tried in vain to get a Stk433-330 replacement but received junk.
Variants as well N or Y type
Anyone got a good source?
The only source now for most of the STK chips is scrapped equipment, assuming it wasn't the STK that died (and they often do). There are also discrete replacements available for some of the more popular ones. The other way to get an old receiver running again, is to replace the power amp section with a complete power amp module.
Jesus mate I wouldn't want to pay you to repair something! the amount of extra work you do when you don't need to I would have a massive bill. You proved the HDMI board was ok by measuring the current it was drawing, then spent ages testing everything on it? The amount of current needed to make that bridge rec that hot would fry those small regs if it was them.
I only charge for the actual repair time, sometimes I will devote many more hours but not charge the customer for that time. Remember this is my hobby.
Shame on you Yamaha... STK s, come on...