yamaha rxv power problem repair
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- čas přidán 27. 02. 2013
- This video shows instructions on how to repair a common problem of power failure for many of Yamaha RX-V series amplifiers.
We no longer carry the thermal fuse for sale, but here are the fuse ratings:
10A
125o Celcius
REASON for blowing the fuse:
The specific amplifier was playing at a party at MAX volume for several hours, in a not well ventilated space.
artaudioparts.com/ - Věda a technologie
This is a wonderful fix it video! Thank you and keep up the fabulous work!!!
Great "no frills" instructions
simple and clear with no distractions awesome thanks
finally, a fix. thank you so much
Grasias a la persona que subió y creo el vídeo me tomé mucho tiempo Saver el porque no funcionava la fuente de poder del amplificador Yamaha nunca supe que por dentro tuviera un fusible en la fuente de poder mil gracias oy pude arreglar mi Yamaha receiber
Very cool that you could get a thermal fuse. Never seen them for sale but that doesn't mean much. I just solder the wires together but it DOES raise the risk of fire. I'd add a regular fuse to the outside in case of total failure and possible fire.
Landotter1 very unlikely
+Landotter1 oh, man it's very dangerous
My unit showed no resistance between the wires. I disassembled the transformer a little bit and retrieved the original fuse. It is labeled L7F TAM 250v 5A- 148 C for those interested. My model is the RX-V379 for reference. This fix did not work for me. I hooked the wires up directly without the fuse and it still would not power on.
computer voice :), anyhoo glad I found this. trying to trace a no power situation on an rx-v861
Very helpful. I though I would need a new transformator and now just the thermal fuse. Thanx! Yamaha RX-V390RDS
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Thank you so much, you really help me out !
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This apparently does not work on an RX-V992. The transformer is set up quite a bit differently and it's hard-soldiered onto components in the machine and you can't simply just unplug plastic plugs and rip it out. Apparently their earlier models were too easy to fix and so Yamaha decided to hard-soldier everything in.
Make new thermal jumper bridge it around to obeslete out the bad thermal fuse. Simple
Thank's , clear and simple.
what if I have 1.7 ohms on the primary coil?
My reading when testing the primary coil is 4.2~4.5 Ohms. Is this an acceptable reading?
I have a rxv1200, has all the symtoms of a bad thermo protecter fuse,but it has no plugs,all solid solder conections! Also grey &blue wires are in a gang,no plug! It turns on now(moved most plugs& one seemed to reconect it) no speakers or input conected yet.let you know later. Your show was good,but, it isn't anything like my amp! Maybe the bigger ones are differant,also mine is 13-14ears old.
It is a 125 Celsius degrees thermal fuse. +/- 5 degrees fuse will be OK as well.
Oh yes appreciate that you put this up to help. but ugh.. that robo voice. My Yamaha HTR-5950 will power off seconds after powering it on, yes with a clicking sound near the power supply board. I unhooked all speakers, checked them all out. I put the receiver on the bench and took of the top, blew out the dust. The 2 8 amp 120v fuses looked good. I plugged it in w no speakers and it did the same thing. I'll try this I guess or not if it's not applicable. What else can I check? Good camera and graphics work for the most part though. 🙂
Thanks for the video my question , what amp & volt rating of the replacement fuse .
hello, I have a problem with my Yamaha avr s80. The same problem, when I push the power button it make "clack" and than against "clack".
what can I do ?
What is the part number or part specifications for the thermal fuse used in the RXV992? You do not mention it in the video nor supporting text.
funciona con el modelo 375 tambien?
hi, I had Yamaha RX-V575 receiver and have the same problem. what are the specifications of the fuse? where can I get the thermo fuse
На дворе ночь, имеется Yamaha симптомы такие же. За видео спасибо! Мне этот способ помог
muy bueno, muchas gracias. voy a probar con esa alternativa para ver si camina.
:)
+Yanina Trovatto hola, tengo el mismo problema, lo pudiste solucionar asi?? y que fusible es?? gracias
on the rx-v550 its impossible to get into the transformer to replace the thermal fuse. Do you have a link where I can buy the transformer?
multumesc!
Informative video, but have you ever heard of heat shrink??
Thank You
Where did you get the fuse?
I checked your video. Your transformer is probably ok. Check the secondary voltages if they are ok (see the service manual). Next I would check the small pcb of the standby circuit for faulty components.
Your video on Yamaha 377 is wonderful. My primary coil is 4.8 Ohms and I confirmed 120v to the primary. Actually, I have two of these (One for a neighbor which likewise failed while I was measuring and comparing). I really need help. Please contact at 8658502858, or Jim.Clayton@clayton.org. I glad to pay. Please help. Thanks very much.
thank you very much
HELLO!
Thanks for video, I have the RX-V467 and sound comes out but NO VIDEO have you any ideas what might the route for fixing it, could it be the the HDMI connector block they seem to fit kind of lose not snug, any help inputs I'll appreciate it
Hello!
Você sabe a função de uma janela que fica na parte traseira superior esquerda do receiver?
Does this cover the ps 192H issue? Or any tips for that issue
Hi friends, can you help me with my problem please, I just buy a yamaha rx-V2400 wanting to pin a fuse burning power system which will be the problem
I have a RX-V373, it turns on for a second then shuts off, says PS PRT 1XX (158,159, 161, 163, 164, 167, 168, 169) All "H's". when the thing is warm, it stays on, and no issues - the HDMI 1 from my computer, and HDMI 2 to my ps3 will switch automatically, even though im using my PC. And goes to "Audio 1" other than that annoying thing, its perfect. If i leave the unit on, all the time it wont shut off, but if it goes off, i have to sit for an hour to get it on. Could this be the issue i have with the fuse? Or do i need to look at grounds, or HDMI board? I know it says a PS Error but with it working intermittently, it makes me wonder - though im no electronics expert, but build pcs. When the 169 #s do come up though, they dont always change but they do about 60-80% of the time, if that matters, its not always the same # for the error.
I press tone control then info. I was told to plug in the receiver as I'm doing this but it blows my fuse. Is there a reason for this? RX-V371 SOMEBODY PLEASE HELP
What specs is that standby circuit transformer? I need a replacement. Shown @ 1:45
But which fuse to put. How much mm
Hello Do you sell service manuals for Yamaha amplifiers?
After i did this my yamaha txv7 series no longer shuts off right after i turn it on and i even got power back to the display
Having a av receiver at maximum volume causes clipping which causes the receiver to overheat and causes the av receiver to get internally damaged
Yamaha RXV PSU problem was me: TOP254 (TOP254PN TOP254P DIP-7), photodiode's, polariti capasitors, resistors.
any ideas ?
So the primary coil looks OK now and still no power? Things get a little tough now... Check the secondary coils, each one of them to see if they are OK, they should show a low resistance like 4-6 ohms. Then the next suspect is a small pcb for the stand by circuit. Often some parts of this standby pcb fail. Check the service manual. Otherwise the malfunction could be very difficult to find and may not worth the time...
Hi friends, can you help me with my Yamaha RX-V 361, no power on, transformer is good, can you help please?
what size fuse is it?
Mine shows 8.7 Ohms is that ok?
Hi, i'm trying to fix a friend's rx-v467. It had a cap explode and wouldn't turn on. I replaced the cap and now it turns on but has no amplification. Sound can faintly be heard if the volume is maxed. I checked resistance between the two main lines of the transformer and it had resistance. Also, the main fuse isn't blown. The speaker relay turns on after the normal 2-3 seconds, but then seems to quickly turn back off. Any thoughts on what to check?
Hello!
Você sabe a função de uma janela que fica na parte traseira superior esquerda do receiver?
Hi
my yamaha rx-v490 it starts correctly but after few seconds it automatically start triping place help me out of this i have connected it with 110v A\C voltage converter
Hi, I have the RX-V675 and the same problem when I try to turn on.
Do you know if this fuse have in this model or same other thing to check and where to check? Best!
Hi Alessandro, did you repair your V675? My V675 has a DC PRT 255H problem and I couldn't solve it. Thanks in advance.
My YAMAHA HTR 3066 Showing "DC PRT : 253H" error. Some times it's shows 249h, 252h errors. And shutdown after 3-4 seconds. What are the possible problems.. is it a capacitor leakage or any short ?
I have a Yamaha RX-663 and its stuck on Silent Cinema mode...could anyone help please?
my power switch won't switch off or on and strong burning smell model no. FC10
I have a red light but the LCD doesn't display I think the LCD burned out it has a burn mark on it.
Thank you. Looks like a cheap repair. I have RX 767. It's either this or a C254 that is broken most likely.
my yamaha receiver same symptom ..ok..lets get repair ..thanks
at first temperature fuse buying ..
temperature fuse
I have one general question. I live in Europe and I have Yamaha receiver model RX-V667. It is made in Malaysia. I will be moving to USA where the voltage is 110-120V, while in Europe is 220-230V. My questions is - can I replace the power supply of the receiver with one which is compatible with the US voltage? I really do not want to use external voltage converter, so I prefer to replace the power supply of the receiver or whatever else part I need to replace so I can just plug it in and play in USA.
in some cases transformers have two connections in their primal part, a 110V and 220V part. You can try to find the specs of your tranny, contact the producer. Then you only have to change connector.
I can find this Thermo Fuse on Amazon, will this one work? 128 degree Celcius/15 amp/125 VAC 10amp/250 VAC
Joe Ruggiero did it work for you
I tested and the reading came out 0.00. Not sure what's going on. It simply just clicks when I hold tone+straight then power. No red light, no display. Nothing.
I have the RX-V630 model. It has a little bit different symptom than this one. With mine, when you press the power button, the display lights up for a second, then goes off with the same clicking noise heard on this video. Is this a different problem?
Thats the main relay on the power board. you can replace it or clean the contacts like an old set of points on a car.
simon leech
@@slyv6 Im having similar issues can you further explain please?
epic track
all time
Interesting thing. You are using two equal transformers in this video (3:54~3:56). Why didn't you use ONLY the one you took from the amplifier???
good point…..
Hi, I have a problem a little bit different. The receiver doesn't display nothing but also there's no click sound. As this problem ocurred after the power was tripped a few times, I thought it would be a problem with the relay so I replaced the dls1u, however it didn't fix it. Would you wonder what could possibly be the cause?
I know this is an old post. But I've got the same problem, I figured it was maybe the primary caps, so I replaced them. Still no power, no click or anything. Did you ever figure it out?
I got different problem with RXV 2065...no display and no sound...but I can hear click relays inside...what could be wrong?
Do you have 120v reading on the regular open fuse the main board where the power cord plugs into , you should be able to see a glass fuse on the top. If you have 120v there then problem possibly the transformer that also plugs in on the same circuit .
I have the same problem for my Yamaha 683. Changed the mosfet and did not solve the problem. I found the power transformer has impedance of 0.3ohm.
Be careful not to overheat the thermal fuse while soldering ....
Hi I have the exact same problem but my model is a yamaha RX-530, do you know what i should do? Your instructions only apply for the RXV models, but do you know what to do for the RX ones?
I am not sure if this model has a fuse in the transformer, have not open up any of these. But you should open it up and check the primary coil for open circuit. If you find open circuit then you probably have a blown thermal fuse, like in the video, and hopefully not a burnt primary coil.
artaudioparts how to power up a RX v365 Yamaha receiver when it when it shuts off
How to power back up the 365 Yamaha receiver when it shuts off
Clipping can not only blow speakers but can also damage transistors capacitors resisters as well as other components inside the receiver and can even cause fuses inside the receiver to blow
Esse receiver tem uma janelinha na parte superior esquerda. Qual sua função?
I got a yamaha rs-201 and it turns on, says main on for half a second and then goes on again.. the electronics work you can change the volume and everything but it won't stay on
Si funciona amigo compruébalo tu mismo
How possible is it to get a replacement part?
Hi every one i need an advice i have a yamaha home cinema model rx-v870 and im getting some problem with it when i put it on after 3 second it turns off automatically any advice please??
Check the relay on the main power board, the big black plastic rectangle. gently tap it with it energized.
Check for the motherboard ground screw in the center for corrosion. I did it with my RX-V880 and it fixed the problem ^^.
what happens when you do not have 6 ohms. I have 2.5. My unit is rx v373
I see your comment is 6 years old, but might you remember your outcome for this transformer? I am working on a V373 and have only 2 ohms.
Thermal fuse 125°C 10A 250A, why? 1A 2A 3A 5A 250V Flat Thermal Fuses are ment to be inside transformers, check AliExpress, Yankee professionals told original fuse is 75°C??? The Yamaha AVR power transformers have an internal circuit breaker that is required by UL/CSA. By the way I use crimp tool with connecting tubes to make bypass, no soldering at all.
The color of my amplifier is grey and red rather than grey and blue.
grey and brown here in the 367
250v or 120v . The link for the fuse is no longer available. And it doesnt show description on the fuse. You said 10A 125C ... but rated at 250v or 120v?
It’s 250v where they are
Prolly Australia or maybe New Zealand
@@2121KJW Does the thermal fuse to be 10A? 1A 2A 3A 5A 250V Flat Thermal Fuses are ment to be inside transformers.
Ari Anttila
Sorry
I don’t know
Hi, I just replaced two RX-V377 Yamaha Receiver/Amps and have tested and confirmed the problem in both cases is the HMDI cards. While using one of the bad HDMI cards neither of the four units will power up. Using a good HDMI card and all four units work perfectly. Notice, "power up" is the issue. The power supplies to both "suspect units" tested perfectly.
From Yamaha, a new HMDI card is $169 and I ONLY paid $80 for the two complete units on ebay. Here is my thinking:
1. The "protection" circuits on the HMDI cards are not allowing the power supply to engage.
2. The vendors who sold me the replacement (Used) units likely had the same problem (Would not power up due to "a turned off HMDI unit" by the protection circuit).
3. Using a magnifing glass and good light, all four HDMI cards look exactly the same.
QUESTIONS:
a. How can I find a vendor/repair-place to repair the two inoperative HDMI cards?
b. How can I sell the two good amps with inoperative HDMI cards for $40 each plus $12 freight?
c. What other suggestions?
I can use the two inoperative units if the HDMI boards are repaired.
I appreciate. Jim.clayton at Claytonbank d--com. Thanks!
Jim Clayton , hello I have a v377 and a v373 both nothing happens when power is pressed. How did you discover the issue with the hdmi board?
Where is the HDMI card at
No the fuse was fine but I took the transformer off the board and checked it like your video. it showed 2.5 ohms. I am not sure if a channel is blow or is that normal. I made a video on CZcams. Check my name out
You mean after replacing the fuse you have 2.5ohms ? That probably means that the internal coils have suffered short circuit. The fuse could not protect them and the overheating destroyed them before the fuse blows. At least that's what I guess... Did you try to power it up? Beware that it may trigger the auto-breaker fuses of your home. Anyway, if this scenario is true, unfortunately the transformer cannot be repaired :(
My meter was reading 1.7ohms on the blue/grey wires. I only paid a buck for the receiver so I really wasn't concerned and just went ahead and plugged it in on a surge protector. To my surprise it powered on without any issue.
Your video was very helpful and useful, thanks!
People who are untrained and unskilled in electronics repair should not be attempting this sort of repair. To post this video is irresponsible.
Irresponsible is being a loser that in everything is dependent on other people.
Did you know that the energy released from a large capacitor could give you a heart attack?
Let me guess.
No.
The vídeo could at least show how to ground everything before start working on the receiver.
Love.
OK, but there are no exposed capacitors here. Most audio amps they bleed off pretty quickly on their own. And if by "grounding" you mean shorting out with a screwdriver etc like some people do - then no, one needs to bleed off with a resistor, or maybe a light bulb, etc. It is NOT necessary or even desirable to ground the amp chassis to anything when working on it (except the scope ground to the chassis when observing signals, etc)
Ok
So what should I do if I'm pretty sure I have the same problem, but if I'm also afraid to cut, solder and use a powerful(?) transformer?
I have very little electronic experience.