Great video. I have the same receiver with the same issues, dropped sound and one light is out. I got the receiver in 1974 with Infinity speakers and a Dual turntable. It sounded great!! I will be looking into resurrecting it in the near future. I have had a few receives since then but honestly none have as full a sound as the old Sansui.
Thank you for posting this video. My Dad’s 331 was unusable - it had terrible distortion and channels dropping out. All it took to get it working perfectly again was your cleaning routine with the Deoxit D5. It’s now in my living room driving his old Goodman’s Minister SL speakers and the setup sounds fantastic.
I will cut off the lens tip of standard LEDs and then scuff the surface of the clear lens up to make the LED more diffused like an incandescent light bulb effect. Works great and is cheaper than top hat or convex lens LEDs. WOW. I made LED replacement too difficult. I installed a rectifier and filter cap to drive the LEDs. I like the simplicity of the inverse parallel LED configuration you indicated. THANX.
That is really great that you save these old well built stereos. I really need to get the Deoxid D5 cleaner as I have tried another brand with mediocre results. Not in the mood to change out pots.
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Great video, thank you! I own the identical receiver/amplifier, it has been very reliable and sounds decent. I want to upgrade to LED’s as the bulbs are getting tired, as well as checking & replacing the capacitors as needed.
Hi i hope you see this comment, i have the same receiver, but when i check the ac voltage of the lamps, it shows nothing. I double checked my multimeter to see its not the problem, and it isnt. So basically im not getting any ac Voltage when i test the fuse lamps . The thing is, I dont know if the fuse lamps are burnt and need to be replaced, or maybe its the connection to them which is causing the problem, because this is the condition the receiver got to me, what do you think the problem could be?
How much does it cost to have led lights replaced in a radio like this. I just bought a sansui 6060 and it’s got the ugly green lights instead of blue.
You could buy this 331 from Sansui online or from vintage outlets for around $200 and would outperform probably 60 or 70% of modern amplifiers...do not be fooled by the 12 watt RMS output..teamed up with efficient speakers it would sound great I promise. I own one.
It surprises me that they used such a big part of the circuit board to have that wide wave of traces from one area to another area... guess the soldering labor cheaper than insulated copper wires / ribbon cables?
Had this unit in the 70's and remember it being really loud and clean with a set of Sansui speakers approx. 6" woofers. Can't believe it's rated at only 12 watts per channel?!?
This is the next job to do on this unit...great video!!!! My father bought this Sansui 331 in 1976...listening to it today...seems to have more than 12 Watts RMS!!! Currently driving a pair of Australian Richter Mentor V (6 Ohm) bookshelf speakers....I made all my mix cassettes using this Sansui 331 and an Akai CS-M3 cassette deck from 1980 until about 1997. Love the quality of the Sansui. Thanks again for this excellent instructional video!!!. You have given me the knowledge to fix the display bulbs and scratchy selector knob.
I have a Sansui 771 Quad Stereo Receiver, it has great sound, I want to improve it. I buy capacitors with the same characteristics (voltage and capacity) from a good brand or
Great video. I have the same receiver with the same issues, dropped sound and one light is out. I got the receiver in 1974 with Infinity speakers and a Dual turntable. It sounded great!! I will be looking into resurrecting it in the near future. I have had a few receives since then but honestly none have as full a sound as the old Sansui.
Thank you for posting this video. My Dad’s 331 was unusable - it had terrible distortion and channels dropping out. All it took to get it working perfectly again was your cleaning routine with the Deoxit D5. It’s now in my living room driving his old Goodman’s Minister SL speakers and the setup sounds fantastic.
I will cut off the lens tip of standard LEDs and then scuff the surface of the clear lens up to make the LED more diffused like an incandescent light bulb effect. Works great and is cheaper than top hat or convex lens LEDs. WOW. I made LED replacement too difficult. I installed a rectifier and filter cap to drive the LEDs. I like the simplicity of the inverse parallel LED configuration you indicated. THANX.
I like very much how you appreciate the old methods of design and construction. I have this exact model...with the exact problem. Thank you Norcal715.
That is really great that you save these old well built stereos. I really need to get the Deoxid D5 cleaner as I have tried another brand with mediocre results. Not in the mood to change out pots.
This helped me figure out how to get to the lamps, also tightened amp chip,deoxit, and it sounds great! Thanks! another amp saved from the dump.
I can’t get the solder to stick to the fuse holder when trying to solder in the new LED’s?
Nice insight regarding the large size of the AM antenna bar.
Incredible Channel! I'm giving a Thumbs Up and subscribing to encourage TH-cam to suggest your channel in everyone's Home Feed recommendations . . . your channel will definitely grow over time as more people find it! :))
Excellent explanation of how to repair this stereo. I like your videos. Thank you bro.
Great video, thank you! I own the identical receiver/amplifier, it has been very reliable and sounds decent. I want to upgrade to LED’s as the bulbs are getting tired, as well as checking & replacing the capacitors as needed.
very good excellent explanation about the repair
Hi
i hope you see this comment, i have the same receiver, but when i check the ac voltage of the lamps, it shows nothing.
I double checked my multimeter to see its not the problem, and it isnt. So basically im not getting any ac Voltage when i test the fuse lamps .
The thing is, I dont know if the fuse lamps are burnt and need to be replaced, or maybe its the connection to them which is causing the problem, because this is the condition the receiver got to me, what do you think the problem could be?
I will try and look up a diagram in the next few days.
Fantastic job mate! The brighter the better. Thanks for the Deoxit D5 tip, I have a 221. Fan mail / Chris , Toronto Can.
Love watching you troubleshoot your way through these things. Now.... if you could fix that "Wonky" camera, but how could we watch that! LOL :)
Hard to find build quality like that these days.
Thank you so much your illustrations
How much does it cost to have led lights replaced in a radio like this. I just bought a sansui 6060 and it’s got the ugly green lights instead of blue.
How would you compare the quality to a modern inexpensive amplifier?
You could buy this 331 from Sansui online or from vintage outlets for around $200 and would outperform probably 60 or 70% of modern amplifiers...do not be fooled by the 12 watt RMS output..teamed up with efficient speakers it would sound great I promise. I own one.
@@Warpedsmac What do you mean by outperform?
@@GerardPinzone Listen to one thru speakers of greater than 92db sensitivity...sansui has a tone you don't hear today.
It surprises me that they used such a big part of the circuit board to have that wide wave of traces from one area to another area... guess the soldering labor cheaper than insulated copper wires / ribbon cables?
This was a feature of early Sansui design...they callled it Circuit Board Module (CBM) design. Allowed for easier replacement of boards.
Had this unit in the 70's and remember it being really loud and clean with a set of Sansui speakers approx. 6" woofers. Can't believe it's rated at only 12 watts per channel?!?
Very nice receiver. And yes only rated at 12 watts rms!
This is the next job to do on this unit...great video!!!!
My father bought this Sansui 331 in 1976...listening to it today...seems to have more than 12 Watts RMS!!! Currently driving a pair of Australian Richter Mentor V (6 Ohm) bookshelf speakers....I made all my mix cassettes using this Sansui 331 and an Akai CS-M3 cassette deck from 1980 until about 1997. Love the quality of the Sansui.
Thanks again for this excellent instructional video!!!.
You have given me the knowledge to fix the display bulbs and scratchy selector knob.
I have a Sansui 771 Quad Stereo Receiver, it has great sound, I want to improve it. I buy capacitors with the same characteristics (voltage and capacity) from a good brand or
Very nice video
Very nice, as usual !
Thank you..
Nice vid, thanks. Irritating background noise though.........
tooo white, doesn't look genuine anymore
you need "daylight" or more yellowish leds or a yellow filter