You have a unique talent for making people understand clearly what you are saying.You really ought to be teaching a course online here... I definitely pay for that. :0)
Good video. I'm surprised the electros didn't need replacement with the age of the unit. I love the old receivers from the early 70s to early 80s. They changed looks when they went from linear dials of the 70s to digital readouts of the 80s. Anything from the late eighties onward were just black mono-blocks, with red or blue digital numbers and no character. Receivers in the 90s were so much the same, you'd have to look three times to work out what brand they were.
I've got one of these guys in my antique stereo section in my living room. I made the mistake of leaving the power button on on this unit years ago for an extended time maybe a month I didn't realize it and the output audio was terrible so I had to take and have some work done on it it's fine now.
At 6:14 the Vf of 1.13 Volts indicates a Darlington transistor, 2 Vbe voltage drops. Indeed, when you look it up, it is a Darlington, not just a single transistor.
This is a great video. I inherited my dad's unit and the left channel power amp fuse keeps blowing immediately. The shop said it is most likely the audio output transistors have shorted and it would require a rebuild and they don't have time for it. Do you have any advice or videos on how to fix that?
I repaired one simliar to this it came from a scholl and they had removed the volume controll and placed it inside the machine with some wires running to it. I can imagine som kid turning the volume to Max and they where any good idea to stop this from happening a yeah we can put volume controll inside the machine and have the screws removed i think its really silly solution when the could have locked the amp in a cabinet you can lock. I did put the volume wheel back and now its fixed i also foundsome new screws for it so now its restored.
I have a pioneer with no audio or power to the speaker jacks should i chuck it out do you think? Any help would be appreciated its a VSX-D307 pioneer reciever
Hi NorCal715.....thank you so much for the video! Is there any way you can show us how to set the DC Offset or Center Offset and the Bias Adjustment too? VR1, VR2, VR3 and VR4......thank you so much!!....Ken P.
I have a optinica amplifier sm 1515b if the power transformer goes can it still be fixed the part number is rtrnp0506afzz and it output ic goes bad part number rh-ix1066afzz can it be fixed it is my graduation money purchase so it is special to me
Bought mine in 1971 and just hooked it up again after many years at least 25. I'm getting a lot of loud static even with the volume turned down. Any ideas? Probably needs a good cleaning. Thanks for the video!
@@norcal715 I am assuming you are referring to the volume knobs and pushbuttons (potetiometers and switches). Thanks for the advice, I will order some from Amazon!!
@@norcal715 Got the Deoxit yesterday and did a quick spray on the pots I can reach. The worst for static was the balance and the bass adjustments. It seems to have cleared it up a bit but will do another round of sprays today. Also it seems the left channel drops in and out and has lower volume. Phono and Aux inputs seem ok and the tuner will pull in some channels. Thanks again! Also get a loud crack when you select a speaker pushbutton A & B.
Do you hear a speaker relay click? Worth it is very subjective, Your receiver looks to be from the early-mid 90's. It may not be worth too terribly much now unless you find the right person. Not working I would say $40-80. Working perfectly $ 100-200
Howdy. If you still read comments, .. wish to contact you concerning this unit. I have one of these, and am in North Bay, CA. If you are in a repair business, .. would like to connect, .. as few/no qualified area techs are available. Can exchange info. through PayPal.
![Dead! MONSTER Vintage Pioneer SX-1280 | Can We Fix It?? [No Power, No Lights!] #vintage #audio #diy](/img/n.gif)
The ability to read a wiring diagram and visualise it against what is in front of you is priceless, not many people "have it"
When you take the cover off and see the craftsmanship it restores faith in humanity.
Your teaching videos are priceless.
You have a unique talent for making people understand clearly what you are saying.You really ought to be teaching a course online here... I definitely pay for that. :0)
thank you
I am retired, and I want to learn more of this. Thanks for sharing.
Excellent diagnosis and repair!
That was a nice easy one, good that the schematic and layouts were available!
Simply great! Nice information about fault finding. Thank you.
Good video. I'm surprised the electros didn't need replacement with the age of the unit. I love the old receivers from the early 70s to early 80s. They changed looks when they went from linear dials of the 70s to digital readouts of the 80s. Anything from the late eighties onward were just black mono-blocks, with red or blue digital numbers and no character. Receivers in the 90s were so much the same, you'd have to look three times to work out what brand they were.
I've got one of these guys in my antique stereo section in my living room. I made the mistake of leaving the power button on on this unit years ago for an extended time maybe a month I didn't realize it and the output audio was terrible so I had to take and have some work done on it it's fine now.
At 6:14 the Vf of 1.13 Volts indicates a Darlington transistor, 2 Vbe voltage drops. Indeed, when you look it up, it is a Darlington, not just a single transistor.
Did I see that the big black capacitor swelled at the top? Nice training videos.
Thank you, It was fun to see the hand solder boards.
excelente video de aprendizaje .
This is a great video. I inherited my dad's unit and the left channel power amp fuse keeps blowing immediately. The shop said it is most likely the audio output transistors have shorted and it would require a rebuild and they don't have time for it. Do you have any advice or videos on how to fix that?
I repaired one simliar to this it came from a scholl and they had removed the volume controll and placed it inside the machine with some wires running to it. I can imagine som kid turning the volume to Max and they where any good idea to stop this from happening a yeah we can put volume controll inside the machine and have the screws removed i think its really silly solution when the could have locked the amp in a cabinet you can lock. I did put the volume wheel back and now its fixed i also foundsome new screws for it so now its restored.
Excelente video aprendes mucho
1 SCR and fix. Like that thermal camera !
hello
do you have a repair course and where you get all this schematics from ?
thank you
Schematics from hifiengine.com and elektrotanya.com . Sorry no repair course. :-(
Reverb is actually pretty pleasant
I have a pioneer with no audio or power to the speaker jacks should i chuck it out do you think? Any help would be appreciated its a VSX-D307 pioneer reciever
Hi NorCal715.....thank you so much for the video! Is there any way you can show us how to set the DC Offset or Center Offset and the Bias Adjustment too? VR1, VR2, VR3 and VR4......thank you so much!!....Ken P.
I wish I could but that unit is with its owner now.
Do you still repair ? Where are you located ?
Where are you putting the negative node when you are testing the voltage on each wire point?
Usually the ground lead is attached to the chassis, which is chassis ground.
I have a optinica amplifier sm 1515b if the power transformer goes can it still be fixed the part number is rtrnp0506afzz and it output ic goes bad part number rh-ix1066afzz can it be fixed it is my graduation money purchase so it is special to me
Where have you found the schematics?
Thank u norcal715
Transistors! Gotta love quantum tunneling:)
hi doo you still work on receivers
Great and simple !!
Bought mine in 1971 and just hooked it up again after many years at least 25. I'm getting a lot of loud static even with the volume turned down. Any ideas? Probably needs a good cleaning.
Thanks for the video!
Clean all the pots and switches with DeOxit D5 and see if that removes the static. Get back to me!
@@norcal715 I am assuming you are referring to the volume knobs and pushbuttons (potetiometers and switches). Thanks for the advice, I will order some from Amazon!!
@@norcal715 Got the Deoxit yesterday and did a quick spray on the pots I can reach. The worst for static was the balance and the bass adjustments. It seems to have cleared it up a bit but will do another round of sprays today. Also it seems the left channel drops in and out and has lower volume. Phono and Aux inputs seem ok and the tuner will pull in some channels. Thanks again! Also get a loud crack when you select a speaker pushbutton A & B.
Where do you get your wiring diagrams? Awesome video!
hifiengine.com on this one
@@norcal715 Thanks!
Another great video...can you recommend please where you get the schematics from...
Elektrotanya.com and hifiengine.com
@@norcal715 thankyou much appreciated
Love your videos. Maybe next one could be fixing the audio on your camera?
I have a new camera, hopefully it will be better except for the fan... It is still warm in northern California.
What’s the power resistor’s purpose? And at what temp would be concerning for that transistor? Thanks
Just a voltage drop so the transistor does not do all the dropping. Less heat on the transistor.
HI,where did you get these Diagram,can you share the site
hifiengine.com
do you have a website that has more schematics for other units? I'm gonna be trying to figure out an issue with a unit my father has. Thanks!
hifiengine.com or elektrotanya.com
@@norcal715 Thanks for the info!
i have a Pioneer SX229, turns on but no sound.. is it worth fixing?!
Do you hear a speaker relay click? Worth it is very subjective, Your receiver looks to be from the early-mid 90's. It may not be worth too terribly much now unless you find the right person. Not working I would say $40-80. Working perfectly $ 100-200
hi, where can i download the circuit diagram, for example i have a faulty Pioneer VSX-1014
try hifiengine.com or elektrotanya.com
@@norcal715 thank you very much
I'd put some 120mm fans in it. Even a 140. Too much heat. Needs air-flow.
Nice ty..
Office Space playing in the background
It could be. It is one of my favorite movies.
Nice one; Thanks
WHERE ARE YOU LOCATED? I HAVE SOME WORK FOR YA.
Northern California about 100 miles north of Sacramento CA
At minimum I’d recap that power supply.
Almost as well built as a Heathkit AR1500a.
Howdy. If you still read comments, .. wish to contact you concerning this unit. I have one of these, and am in North Bay, CA. If you are in a repair business, .. would like to connect, .. as few/no qualified area techs are available. Can exchange info. through PayPal.
Email me NorCal715videos@gmail.com
7:35 scary moment :)