I restored this 8 years ago...now it's broken?
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- Опубликовано: 14 сен 2023
- Need tools? Here's a video showing what I use (with links!): • Must-Have Tools For Wo...
Sometimes repairs can be very simple! That happened to be the case with this Sansui AU-6600 integrated amplifier. 
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They "way bad" left channel visual looks like some difficult mountains I have climbed. But you were able to fix it pretty easily.
Funny how you spotted the cause ,after removing the bottom shelf. That is pure talent! And to think that you restored it yourself 8 years ago a Sansui AU6600 is amazing. I love the sound of Sansui. Crips and clear Treble and good Bass sound. You will be using it all your lifetime. Love your videos.
It's not a talent it's the result of experience. Much more impressive if you ask me.
It's great to see another video! I really enjoy your content, your approach, and your explanations. Keep up the fantastic work!
WOW! same story here..
I picked up that exact model last year for free...it was working but alot of DC output..got it repaired and just recently it's doing the same thing again..DC output... haven't gotten time to see about it yet...i appreciate this video 😊
It's so nice when the repair is easy haha. Good to see your videos more often. I hope Montana is treating you well!
Those model Sansui's are sweet! I love my Sansui's. I own a fully restored 9090DB & a QRX-4500. Nice to see it was just a couple blown fuses. I had 2 blown fuses also in my 9090. Turns out 2 output transistors went bad. I think it's because I was running Ohm Walsh speakers rated at 6 ohm's & the 9090DB is known to only like 8 ohm loads. The guy that originally restored it warned me, but leave it to me to not heed his warning. lol. It all worked out in the end. My new tech did the work for a trade of an an Kenwood Power Amp I had that needed some repairs. They only sell for about $100 on eBay in good shape, so I was happy.
Good on you for an easy fix. Fuses are $9.00 a pair at Home Despot? Jeez - highway robbery.
The only time I got this lucky was with a Fisher CA-880 Integrated Amp that I got at a thrift store (for cheap) with one channel working. Opened up the case and saw a blown fuse. Replaced it and it worked great. Cleaned the pots and switches while I was in there (not too complicated). Must have been shorted with a speaker wire mishap like you described (I really have no idea, actually - it worked, I used it for a few years and then sold it - working).
Have a great weekend. Love the videos.
Those KLH speakers sound nice with the Sansui amp. Nice work, Great walk-through.
What do you think caused the fuses to fail in the first place? If there’s a problem then they can blow again
That was actually my 1st thought. Without being sure of the cause, it can happen again.
He stated in the video he believes he may have momentarily shorted the speaker wires when moving things about.
great video ,great amp,who would have believed it was the fuses,not even anti splurge,loved it,oh and a great amp,would love to own it,i think i said great amp😊
Due diligence always pays off even when it appears not to.
Love the outcome. Some of the Sansui's can be a pain with those ring emitter transistors. But Sansui growing up was a favorite of mine. The AU and the big BA power amplifiers were amazing. I like your work. Fun to watch your videos.
Agreed! I've got a BA-2000 and CA-2000 pair that I brought back from Okinawa in 1978. Love, love, love them. Starting to work on slowly re-caping them now that I'm soon to retire. They are built like tanks.
Aways great to watch, be interested to see if that STK 050 is real, know that the STK015 and 16's for the Sansui 331 and 441 can be a nightmare to find a real one
Such a classic piece
I bought a fully restored 5500 a while back and I love it. It is the same series as this one with the aluminum sides with the angle on the front. I believe the only other one like that is the 7700. They are the best looking of the AU series imo.
I have the AU5500 and the only thing I ever replaced were the fuses on one of the channels. Each of the output transistors has it's own fuse.
I have a Sansui AU555. Similar symptoms. Will check fuses first. Thanks.
i have the exact symptom on a power amp, it doesnt have output fuses. but the input stage looks funny, many resistors have black smoke leftovers on board. idk if i replace them would work or not, as im afraid to blow the output transistors...
Gotta love an easy fix.
Nice story! I thought you mentioned that the resistors you pointed out were ones you had lying around and you were going to replace them with the right ones?
Sweet Deal for a Great Piece of Audio Legacy Gear... Always a Sansui Fanboy...
Why would them resistors be fried if I may ask. Got not idea myself but love watching your clips
Honestly I have no idea
Yeah- why did they blow?
nice!
so why didn't you follow up with the scope?
I have a question about those big round/oval transistors ...so just about every tech says that they (japan/ china) no longer makes them...but...is not the end of the amp bc the three legged biĝger transistor can be used to replace them.? The thing is that the only tech I've heard that this surgery is totaly possible, won't do it for a customer or for himself bc is complicated, ( he refuses to fabricate anything) and i think is not that complicated...my concern is a 1988 sansui receiver ,120 wpc that i just bought, and want to keep...IMO, i think this concern anyone who owns vintage equipment...i hope that you can elaborate on this topic. Like I said, it can't be that complicated bc I've build lot's of projects but, I'm not a technician. Cheers!
i believe it has the same pitch to modern plastic body transistors. the only thing you need is solder a ring terminal to the collector since those metal body transistors have collector tied to its body
@@n.shiina8798 I think this topic concerns all of us...I'm just waiting for him to answer...after all...I'm also here to learn.
I'm giving the blogger two more days to respond...and if he doesn't, I'm just moving to another channel.
Well, I could tell you this before I even watched your video. I already knew it was gonna be a fuse, and I’m not trying to be cocky about it but I’ve heard this particular situation all the time where you turn on receiver and you get the stored sound nine times I 10. It’s a fuse but once in a while, it’s not, also case you need another location for electronic parts contact fair, radio Lima, Ohio they have all kinds of parts so if you can’t find it at Mauser fair radio may have it
Try an auto parts store to fuses.
Need to be careful with that. These fuses are rated for high voltage. Auto fuses are 12 volt.
Sometimes you get lucky, sometimes you don't. No schematic for this piece of equipment? Weird terminal placement for speakers, can see that being a hassle. Blown fuses make me itch. Good job getting it going.
I did not get around to including the schematic in this one. The fuses that were blown were coming right off of the filter capacitors, so positive and negative DC rails for that channel.
@AHFixIt That explains it much better, thanks Aidan.
Murphy's Law.
Glad there is no Tuna they smell fishy. A Tuner on the other hand is OK. Nasty speaker conections.
if the fuses were blown ..effectively shutting down the channel....why ! was it still playing .. you probably deeper issues
Hello I want buy sansui receiver..give me price..for my email address God bless you
"For what kind of bass and treble you want to SEE"" .. I thought we "HEAR" the bass and treble response ??..Wait isn't this the make believe intelligent restore guy that used his great restore knowledge on that Harman Kardon Eighty Twenty? .......YES-That explains it!!!
I think you might want to stick to replacing blower motors in 43 seconds- that way you won't have to decide if it should be heard or seen you can just feel it...
Never seen a wave with broken spikes. I remember the original video. 1975-1976. Vertical RCA Dust collectors. Hmmmmmmmm, bought fuses from HD at 1/2 that price.