Nice work Manuel and a nice receiver, it looked so good in it's wooden case. The tuning of the FM stereo was interesting and your logic as to why the circuit wouldn't unmute was spot on. You get an elephant stamp for that 🐘 🙂
The most exciting part of this video to me was watching your excitement over how well your efforts were paying off!!! Keep up the excellent work my friend.
Very nice restoration. I may have to watch the section on the tuner calibration a few times, because I admittedly wasn't sure at times just exactly what the procedure actually was. But that little Kenwood certainly looked nice cleaned up and running properly.
good morning! You do a great job with the radios, I like tube radios the most.the stereo signal, I think it is fixed at 19khz. as i remember as a young man, we made stereo generators for radio stations, and it was at 19khz. many regards, to you and to those who watch your videos, from Zakynthos Greece!
Yes, I’m really glad I found this as I wasn’t ready to pay a couple of grand for the alternatives on the market. I just don’t have enough use for them to justify that kind of investment.
@@electronicsoldandnew You can't really buy anything with the same facilities now anyway. In any case, would you expect modern equipment to last 45 years?
Comments help with RUclips algorhithm too :) Seriously though, Enjoyed this. It's good to see some old, quality solid state equipment brought back to fully functional condition.
That’s true. I keep getting messages advising me to promote the channel more, but it’s not really my priority. I just enjoy it. However, I won’t say no to more feedback as it extends the fun for me beyond the publishing act itself, and I learn a lot too.
@@electronicsoldandnew I always learn from your videos. I probably wouldn't have tackled a restore had I not seen your channel. I do watch Mr Carlson's Lab as well, but it's a bit different to your down to earth approach. 🙂
Cool how you managed to re adjust the radio. Nice find about the mute transistors. If this wouldn't fix it I had cut out the mute transistors then ok there is noise between radio stations.
@@electronicsoldandnew well, not sure about luck, you consciously decided to realign the tuner section first, thinking that this should fix the FM auto mute issue :-)
If I get something working again I also take a break...so I have a little time to enjoy it before I come back and discover something else to be wrong 😄
Hey, Top Receiver. perhaps you can help me. on my KR 3600 the muting/stereo button is defective (sound off) and the stereo LED is not lit. Only mono sound. Have you n idea to reset the issue? Thanks
I recently bought a KR-5030, is there any way of boosting or adjusting the phono pre-amp? I changed carts on the turntable to a Grado blue and it is noticeably quieter and the tape recorder record level is still too low, can't get a full 0dB on the VU.
@@electronicsoldandnew Yeah, a little more complicated than I had hoped. BTW, though this video did help with the FM section. When I first got it, it would receive very well but nothing in stereo. I made a slight tweak of the 19khz VCO and it works perfectly now.
Hello, New viewer and subscribed. I watched this and your intro video on this unit and had some questions as I'm hoping to be able to restore a Kenny 6030 that is on it's way to me now. In the intro video I think you said you checked with ELV and they said they would ship to the US even though it's not indicated that way at the website. Can you confirm this please? Then as I'm very new to this type of work, I'm trying to get up to speed with understanding it all. Could you please back the bus up so to speak and show me how you have connected this unit and your scope, and any other test equipment needed to tune the FM? Please break down each cable - connector - location and settings for me. This request will probably need another video but it would totally help me as I'm just starting in this type of work. I do have a scope - function generator - variac - power supply and a couple of DMM. My thanks for your help. Happy New Year, Jack
If the Integrated Circuit is impossible to get the what about a replacement module using a Silicon Labs AM/FM radio module which outputs via dual DAC output stage and would need to be powered by a LM7803 Voltage regulator but the tuning capacitor needs to be replaced by a pot as the module uses a VCO.
@@electronicsoldandnew Victory dance, huh?! Hahaha! Nice. And nice work. And I caught someplace you also watched some of Tony's vids. He's really good. And is a good guy. I wtore, he replied and was super nice and helpful. Keep up nice content! Stay safe!
No love for the phono stage? Oh well... The center channel meter is an indispensable tool for setting up the detector properly, as you discovered. The meter won't deflect properly if the detector cannot resolve proper phase. Without this, you won't get optimal performance out of the FM tuner, and, as you discovered, an out of phase detector can impair detection of the 19 KHz signal, and also wreaks havoc with the upper frequencies where the difference signal is transmitted. It's a good thing that setting the detector properly solved the problem. Adjusting a multiplex adaptor can be a thankless task.
@@electronicsoldandnew I have the feeling you are being modest here... I serviced audio equipment back in the '80s and '90s, mostly Scott, Fisher, Marantz, and McIntosh. Both tube and solid state. FM tuners, particularly multiplex stereo, can be a bit of a challenge. Early solid state gear was surprisingly similar in circuit implementation to tube gear. Proper IF transformers, rather than those puny crystal IF slots that took over by 1970. These are hard to work with, and in some cases, next to impossible to set up properly. The thing is, they were not supposed to be adjusted. Yeah, right! You may want to get your hands on a 60's HH Scott receiver. Many were sold in Europe. They are a pleasure to work on, with classic circuit layout that was a direct carry-over from the earlier tube circuits. With Scott, you have the best quasi-complementary amplifiers ever made, and with the introduction of symmetrical complementary designs in 1969, a topology that was perfect in design from the start: Circuits that really haven't been improved upon.
My experience with these sets is fairly limited, although I can climb the learning curve quite quickly. The fact that I didn’t stay in the electronics field after finishing my degree at varsity means that a lot of this stuff that I’m tackling now as a hobby is a first for me. It also means that I didn’t get bored with it professionally so the fascination is still there. I’ll keep my eyes open for a Scott receiver. I’d like to experience what you’ve just described. Thanks
😂 Probably. I actually believe I know who it is. He objects to my “interruptions” when I add the “don’t forget to subscribe” graphic as it distracts him from the video 😊 but continues to subscribe 😊 Strangely enough, the dislikes apparently also help with the RUclips algorithm as it tells it that the views are real and not fake. Strange world.
Nice work Manuel and a nice receiver, it looked so good in it's wooden case. The tuning of the FM stereo was interesting and your logic as to why the circuit wouldn't unmute was spot on. You get an elephant stamp for that 🐘 🙂
thanks. looking forward to earning a 🦘 medal
I've always loved the look of the receivers from this era.
me too
The most exciting part of this video to me was watching your excitement over how well your efforts were paying off!!! Keep up the excellent work my friend.
Thank you Wayne. I do get carried away sometimes 😃
Great job on this tired old Kenwood, good for another 40+ years
👌
There is so much room in this machine. You see, what is inside. A dream.
Yes. Makes it easy to work in there.
Very nice restoration. I may have to watch the section on the tuner calibration a few times, because I admittedly wasn't sure at times just exactly what the procedure actually was. But that little Kenwood certainly looked nice cleaned up and running properly.
👍
good morning! You do a great job with the radios, I like tube radios the most.the stereo signal, I think it is fixed at 19khz. as i remember as a young man, we made stereo generators for radio stations, and it was at 19khz. many regards, to you and to those who watch your videos, from Zakynthos Greece!
Thanks 👍
It hasn't taken long for the ELV signal generator to prove its worth. That receiver will be spot-on for years now.
Yes, I’m really glad I found this as I wasn’t ready to pay a couple of grand for the alternatives on the market. I just don’t have enough use for them to justify that kind of investment.
@@electronicsoldandnew You can't really buy anything with the same facilities now anyway. In any case, would you expect modern equipment to last 45 years?
👍
Comments help with RUclips algorhithm too :)
Seriously though, Enjoyed this. It's good to see some old, quality solid state equipment brought back to fully functional condition.
That’s true. I keep getting messages advising me to promote the channel more, but it’s not really my priority. I just enjoy it. However, I won’t say no to more feedback as it extends the fun for me beyond the publishing act itself, and I learn a lot too.
@@electronicsoldandnew I always learn from your videos. I probably wouldn't have tackled a restore had I not seen your channel. I do watch Mr Carlson's Lab as well, but it's a bit different to your down to earth approach. 🙂
I watch his channel too. He’s a pro, and I’m a hobbyist, so I always learn something from his videos.
Cool how you managed to re adjust the radio. Nice find about the mute transistors. If this wouldn't fix it I had cut out the mute transistors then ok there is noise between radio stations.
👍
Nice project, The 75 ohm connectors, I know them as Belling-Lee. Looking forward to the next one.
👍
good call on that auto mute circuit....many would have tried to look at the mute circuit itself instead of first re tuning the receiver!...well done!
I had a bit of luck 😊
@@electronicsoldandnew well, not sure about luck, you consciously decided to realign the tuner section first, thinking that this should fix the FM auto mute issue :-)
👍
On my 3rd last relay switch. They don't make them anymore. Thank you. Almost Sold it.
👍
If I get something working again I also take a break...so I have a little time to enjoy it before I come back and discover something else to be wrong 😄
You’re spot on with your comment 😊
Great video, thanks!
pleasure
Hey,
Top Receiver.
perhaps you can help me.
on my KR 3600 the muting/stereo button is defective (sound off) and the stereo LED is not lit.
Only mono sound.
Have you n idea to reset the issue?
Thanks
Afraid not.
I recently bought a KR-5030, is there any way of boosting or adjusting the phono pre-amp? I changed carts on the turntable to a Grado blue and it is noticeably quieter and the tape recorder record level is still too low, can't get a full 0dB on the VU.
I’m sure you could, but it would require some careful study and experimentation
@@electronicsoldandnew Yeah, a little more complicated than I had hoped. BTW, though this video did help with the FM section. When I first got it, it would receive very well but nothing in stereo. I made a slight tweak of the 19khz VCO and it works perfectly now.
👍
Hello,
New viewer and subscribed. I watched this and your intro video on this unit and had some questions as I'm hoping to be able to restore a Kenny 6030 that is on it's way to me now.
In the intro video I think you said you checked with ELV and they said they would ship to the US even though it's not indicated that way at the website. Can you confirm this please?
Then as I'm very new to this type of work, I'm trying to get up to speed with understanding it all.
Could you please back the bus up so to speak and show me how you have connected this unit and your scope, and any other test equipment needed to tune the FM?
Please break down each cable - connector - location and settings for me.
This request will probably need another video but it would totally help me as I'm just starting in this type of work. I do have a scope - function generator - variac - power supply and a couple of DMM.
My thanks for your help.
Happy New Year,
Jack
I'm learning how to do FM alignment .Can you this ELV sup3 to alignment of the MPX board?
yes
Good job. I like it!
👍
If the Integrated Circuit is impossible to get the what about a replacement module using a Silicon Labs AM/FM radio module which outputs via dual DAC output stage and would need to be powered by a LM7803 Voltage regulator but the tuning capacitor needs to be replaced by a pot as the module uses a VCO.
First we try to restore, and only if that fails do we replace 😊
@@electronicsoldandnew yes, too many just go ahead and do a sweeping replacement of parts without really looking into what the real issues could be!
Greetings:
When polarity is irrelevant in a measurement, the proper term is "absolute value".
👍
I had that unit from new in 1978.
👍
Did you go and do victoiry dance after the FM alignment when you said you needed a break? :-P
something like that 😊
@@electronicsoldandnew Victory dance, huh?! Hahaha! Nice. And nice work. And I caught someplace you also watched some of Tony's vids. He's really good. And is a good guy. I wtore, he replied and was super nice and helpful. Keep up nice content! Stay safe!
Thanks. You too.
No love for the phono stage? Oh well... The center channel meter is an indispensable tool for setting up the detector properly, as you discovered. The meter won't deflect properly if the detector cannot resolve proper phase. Without this, you won't get optimal performance out of the FM tuner, and, as you discovered, an out of phase detector can impair detection of the 19 KHz signal, and also wreaks havoc with the upper frequencies where the difference signal is transmitted.
It's a good thing that setting the detector properly solved the problem. Adjusting a multiplex adaptor can be a thankless task.
True. I need a few more of these under my belt. They are a far cry from tube gear 😊
@@electronicsoldandnew I have the feeling you are being modest here... I serviced audio equipment back in the '80s and '90s, mostly Scott, Fisher, Marantz, and McIntosh. Both tube and solid state. FM tuners, particularly multiplex stereo, can be a bit of a challenge. Early solid state gear was surprisingly similar in circuit implementation to tube gear. Proper IF transformers, rather than those puny crystal IF slots that took over by 1970. These are hard to work with, and in some cases, next to impossible to set up properly. The thing is, they were not supposed to be adjusted. Yeah, right!
You may want to get your hands on a 60's HH Scott receiver. Many were sold in Europe. They are a pleasure to work on, with classic circuit layout that was a direct carry-over from the earlier tube circuits. With Scott, you have the best quasi-complementary amplifiers ever made, and with the introduction of symmetrical complementary designs in 1969, a topology that was perfect in design from the start: Circuits that really haven't been improved upon.
My experience with these sets is fairly limited, although I can climb the learning curve quite quickly. The fact that I didn’t stay in the electronics field after finishing my degree at varsity means that a lot of this stuff that I’m tackling now as a hobby is a first for me. It also means that I didn’t get bored with it professionally so the fascination is still there.
I’ll keep my eyes open for a Scott receiver. I’d like to experience what you’ve just described. Thanks
Don't overlook the tuning capacitor's contacts, if they are corroded (green), it really makes troubles!.
👍
5 Dislikes? More than your usual..... oh well there is no accounting for taste I suppose 🙂 Maybe your usual harsh critic has called in his mates!
😂 Probably. I actually believe I know who it is. He objects to my “interruptions” when I add the “don’t forget to subscribe” graphic as it distracts him from the video 😊 but continues to subscribe 😊
Strangely enough, the dislikes apparently also help with the RUclips algorithm as it tells it that the views are real and not fake. Strange world.
Strange world indeed -It's good to know that the dislikes actually help the algorithm, that's quite amusing really 🙂
Good job. That ELV Instrument is the "cats meow". So far we are not able to get it State Side. Loved the alignment section. Thanks for the look.
pleasure
I was hoping to find some here in the US myself.