Kenwood TS-430S Repair and Restoration. November 2018

[@w.rustylane5650]

Your USB button is upside down! Yep, I replaced the burnt out bulb in the 430 with an LED and ballast resistor. I also tore down my PS-430 power supply and took the pig tail fuse off the little internal board and mounted a 12 volt fuse holder in the back of the power supply so I wouldn't have to tear down the supply just to replace the 12 volt fuse. While I had the radio and power supply covers off, I sanded them down and repainted with a nice light color grey which went well with the Kenwood grey & I think we used the same colour of grey. Well, you did the LED just like I did it even using the little metal bulb holder. I also took all the knobs off and the front plate and gave them all a bath; getting the face plate was kinda fidley trying to get all the buttons in place before putting the screw back into the VFO spot. Cheers & 73 from W Rusty Lane K9POW in eastern Tennessee

[@petermiles6557]

Down under.....

[@cqdx1677]

Kenwood 430 and 440 are the best solid state amateur radios ever made

[@petermiles6557]

Agree, just need to keep on top of the maintenance.

[@alessioschiavone3898]

yeasu 990 does not agree

[@wheatstrong]

Thanks so much for documenting your repair process. I have a ts-430S in very good condition I received a few weeks ago and I bought an FM board for it. I used some of the shots of yours to verify proper hookup of the cables.

[@w.rustylane5650]

I'll be getting a working TS-430S with PS-430 power supply next week and I'll be taking my General license test as well. 73 from K9POW in eastern Tennessee and thanks for posting the video.

[@petermiles6557]

Good luck with the general license and the TS-430S.

[@w.rustylane5650]

@@petermiles6557 Well, it's 2 or 3 years later and I used the Kenwood TS-430S for these past years. It has been a very good radio, but time to update. I gave the 430S to a ham that was disabled and had just passed his general license test and all he had was an HT. So I gave him my old Kenwood TS0430S, PS-430 matching power supply, and auto LDG tuner, a set of mono headphones with 1/4" jack, extension speaker, manual (each page in a protective plastic sheet) and a Yaesu FT-2200 2 meter radio. I now have a Yaesu 991a and a Kenwood TS-281a, 2 meter radio. It's all about hams helping hams. Cheers & 73 from W Rusty Lane K9POW in eastern Tennessee

[@K2CTC]

Very cool... expertly troubleshooting, repairing, and restoring. Informative and inspiratonal. Just ordered a 430s from Paul Jahnke, who works on these 1980s(ish) Kenwoods here in the states. I'm looking forward to getting more familiar w/ this radio and maybe even be able to repair it. Watching a knowledgeable and skilled tech get in there and do some magic was really cool. Thanks!

[@petermiles6557]

Carey The truth of it is that most of my radios are from this era and several years ago one by one they all developed serious issues around the same time and as there was no one with a thousand plus miles that could do the repairs, I decided to have ago as I had nothing to lose. Now it is my favourite part of the ham radio. Service manual, service updates and QRZ.com technical forums are your best friend.

[@K2CTC]

@@petermiles6557 I stayed up super late last night watching ts-430 diagnosis and repair videos. It's fascinating, honestly.

[@K2CTC]

@@petermiles6557 Also, thanks for the pointers!

[@mikeZL3XD7029]

Nice work Peter, I've had my 430 for 6-7 years, might be a good time to have a look at them relays. That was some really good fault-fdinding with that squeal, but not surprising it was the caps. I had a 440, that I had no end of problems with, I still have it but when the display started playing up, I bought the 430. 73, Mike ZL3XD.

[@RelentlessHomesteading]

Excellent -- amazing how many wires and jumpers etc. -- more so that in the tube counterparts I recall from my folks Collins rigs. I've got a Kenwood TS-430S. Not really used it, but replaced the battery in it. Otherwise seemed OK. In process of putting up a 75 - 10 EFHW - looking forward to my first HF contacts. Lots more functions in these rigs -- it always amazes me how they were able to sell them for a reasonable price. But debugging them is no picnic; ...but it least it could be done. Nowadays so many ASICs and unnamed parts and surface mount all making low level troubleshooting generally futile. Thankyou.

[@petermiles6557]

My TS-430 is still part of the shack, I mostly use my 'new' TS-450, however the 430 is easily an often switched in and still works and looks as good as new. I also think the audio is actually better than the 450. I agree regarding servicing, which is why i prefer this era of radios.

[@RelentlessHomesteading]

@@petermiles6557 Nice to hear you still use both of these old Kenwoods - I see many people bashing them, though rarely see them give a real reason. Have you mod'ed them at all for doing any digital work (FT-8, etc.) Perhaps at that point I should consider getting a later model radio. I'll take it as it comes and those decisions will come later.

[@petermiles6557]

@@RelentlessHomesteading Have used the TS-430 and a TS-930 on various digital modes including FT8, Olivia (Best mode that nobody uses) PSK31 etc.

[@w.rustylane5650]

@@RelentlessHomesteading I modded my Kenwood TS-430S and opened up the whole HF band by clipping a little white wire on the bottom of the board. Will even do 11 meters but I gave the radio away to another ham. I now have a Yaesu 991a with the MARS mod done at GigaParts. Cheers & 73 from W Rusty Lane K9POW in eastern Tennessee

[@calvinhobbes7504]

Peter, thanks for a GREAT video! I have problems with several relays on my TS-940 ... I had thought of replacing them all with those orange Matsushita relays but now even those are unavailable ... or at least I can't find them. After seeing your example, I have shaken the jitters that kept me from performing this cleaning. I think I can clean them myself .... I know all the coils work, so cleaning ought to do the trick ... All I needed was a quick injection of "no fear" - and you provided it. Thanks a million ... !!

[@petermiles6557]

Thanks for the really positive comments, it makes it so worthwhile when you know someone got such motivation. Good luck and keen the hear how go. Cheers

[@calvinhobbes7504]

@@petermiles6557 Hey Peter .... first job completed. My 10dB attenuator relay stuck and would not kick back out when de-selected .... I had to remove it completely because of component crowding ... only 4 leads ..... popped the cover off ... and lightly cleaned it with paper soaked in cleaner. Dried and installed it ... took a total of an hour or so ... and now the attenuator (all three settings) works like a champ. The big problem is relays on the tuner (same type as the attenuator) .... there are three or four of them I'll tackle next. Thanks again and God bless ..... CHEERS!!! - Neil

[@rpenc01]

favorite radio I've ever owned. Had to sell it because I tired of moving heavy equipment. I've downsized to an Elecraft KX3

[@bobbobbobbob1449]

Just got my 440 back from tampa florida having a total alignment and upgraded to leds now sending my 430 to him for same

[@wolfganglohrie6820]

Thanks for this video. I just needed to do the Relais cleaning as well. Your video was a great help Wolfgang VK2DDD / Sydney, Australia

[@petermiles6557]

You may also consider kzbin.info/www/bejne/hWfcl2aQr7xrh5Y

[@caulktel]

Good job on the restoration. I hope you turned the USB key right side up:-) I'm about to start a restoration on a TS-440SAT soon. Thanks for the video.

[@petermiles6557]

The TS-430 is a nice radio to do a restoration on as I'm sure the TS-440 is. Good spot on the USB key and yep it is right way up. Hope we get a video of the 440 restoration.

[@aussiebeardsman1267]

I'll be interested in the 440s resto

[@petermiles6557]

From what I can see the TS-440 is very similar to the 430.

[@aussiebeardsman1267]

Peter I have both yet to pull them apart. May start the 430 tonight.

[@jeremey2072]

Hi Peter, I have one of these, I acquired it a few years ago and it sort of worked on a couple bands, but now it's completely useless all across the board. It powers on but receives only loud crunching static across all bands, I'm going to start replacing caps and try cleaning these relays and hope for the best! I appreciate you documenting the teardown of this radio. 73 KL4FC

[@petermiles6557]

Hey Jeremey Also have a look at kzbin.info/www/bejne/hWfcl2aQr7xrh5Y as it is non-invasive as a first step.

[@alessioschiavone3898]

thank you for this very informative video, beautiful. only a little remark but that s my taste: a lightbulb with a small resistor would look more classy in this old rig

[@VK3HJV]

Nice work mate

[@timbentley7840]

Radio Repair ASMR......niceeee.

[@daveinthailand]

When I was in UK I had same model for 4 years with matching power supply never had a problem but they are clocking on now obviously need recapping soon due to age

[@mrtechie6810]

Kindly advise: I extracted the output filter board of a TS-430S to work on it. Issues: 1. Intermittent low rx (probably "dirty" relays). It appears they are all sealed (except the tx/tx relay). I tried using a "wetting voltage" as described in a Kenwood service bulletin, but there is still intermittent loss of rx, especially on 10m. 2. One of the inductors (L41) is shorted. 3. How do you test a diac (D18)? (It reads short circuit in both directions.) Apparently it is for overload/surge protection. 4. The S meter reads extremely low. I failed to recalibrate S9 (even with the trim at maximum, it doesn't reach 9).

[@ICEDoTDK]

good job I'm considering buying a 430s too

[@ewaltbouwer3793]

thank Peter i now know exactly how repair my ts430s with the same problem

[@petermiles6557]

Would like to know how you go with the repairs

[@andytangent944]

Thankyou Peter. I am engaged in trying to solve the same constant tone problem as you had and indeed, wiggling things near the 5v regulator does as did in your video. Yellow text in your video states that you have removed and replaced Electrolytic caps c118 and 119 which I ordered and have arrived. However, I have examined the circuit board diagrams and the THREE capacitors in that region appear to be C116, 117 and 118. I can't see a C119 on the service manual representation of the board at all (almost certainly brain freeze) but it doesn't appear to be in the area you were working at all. Any light you could shed on this please. I'd be most grateful

[@petermiles6557]

Andy; sorry about the confusion. C119 should read C116, see below table and C117 is not an electrolytic capacitor and therefor not regarded as an problem. Keen hear how you go. Capacitor ID Capacitor Value Capacitor Working Voltage New Capacitor Value New Capacitor Working Voltage C116 1.0uF 50V 1uF 63V C118 47uF 10V 47uF 16V See notes at vk6ysf.com/ts-430s_maintenace.htm Cheers Peter

[@andytangent944]

@@petermiles6557 Thankyou SO MUCH for replying... very kind and I had to laugh becuase.. the USB button was upside down, the 9 was upside down and you are from Down Under :) This was a fabulous video you made and it has encouraged me to make a start. Really GREAT stuff, thankyou.

[@petermiles6557]

The C118 was also upside down, but you didn't pick that one up...... Thanks for the positive feedback, that really makes it all worthwhile.

[@andytangent944]

@@petermiles6557 ha ha!

[@andytangent944]

Righty Ho.. update for you Peter. I followed the section where I replaced the electrolytic caps 116 and 118. I also replaced the 5 V regulator (during which procedure the bolt holding the old one on sheared and left no purchase to remove the stub). I've used thermal compound between the regulator and the chassis and secured the regulator to the chassis with a strong metal clip. Results?? Well... the horrible tone is completely gone, the display all works fine, the radio is all working lovely and, although I have no idea why, is apparently giving a local station 2 s points more than he used to get from me. I still have a vestigial problem... and bearing in mind you helped me get out of this situation, I'll ask if you have any knowledge of why this should be happening. I'll try to explain.... My symptoms were not EXACTLY the same as yours. i got that horrible tone you got, mine was intermittent, and when the tone kicked in I lost the display, all audio (except the tone) and the radio did not transmit. This often manifested itself on bootup. Once in this horrible state, it never righted itself, but could be coaxed to work by touching/prodding the metal surrounding for the IF board in the region near the area you and I have both worked on. Then everything would kick back into life. Since the repairs I have had no nasty tone, no loss of display, no loss of audio, BUT I still have an intermittent "no transmit" situation... (all modes). These events happen - often on bootup, and hey ho, can be put right by touching the the metal surrounding the if board in the area we worked on!. . As I write this, my radio has not done this irritant for 48 hours... but I have done nothing to fix it so I am inclined to think it will happen again. Whatever, the state of this radio has dramatically improved since watching your video, it inspired me to start and the replacement of the caps was my first ever work on a circuit board. I watched several solder tutorials - practised on a defunct board until I could do it, and then followed your voice and instructions. So you can know that your making this video has helped a guy on the other side of the world fix his radio. I realise that you'd get a lot more "likes" for a budgerigar spinning around on a vinyl turntable, but I'll send you a couple of million virtual "likes" for starting me on a really interesting and ulitmately rewarding operation. Today, Peter Miles, feel good!

[@davidnudelman7145]

Hi Peter. I have a ts-430 with FM board installed. When I push the fm mode button, the tuning display goes blank except for the last digit, which will display from 1 to 8 if the tuning knob is rotated. I have tried a 2nd FM-430, same thing. Your thoughts? 73's KJ7TSM

[@АлександрРетота-у9т]

Благодарю за подробное видео!

[@mrtechie6810]

The M.CH button is intermittent. Have you seen this? Any idea how to clean/fix?

[@johnjohn-kj6yk]

Hello one question, I have the kenwood 430s together with the fm pcb, my question is how is it possible to variable the fm power, my tranceiver has an fm output of 70 watts, ok is good for long distances , for local communication in the city I think it is too much power , is there a way to adjust the output power in fm?

[@mstaiano1]

Hello Peter, did exactly what you have shown. Double check all connections turned the radio on and a wire on j15 (red) smoked. It's in the same side of the relays compartment where you connect the power. Could send you a photo. Any suggestions

[@petermiles6557]

Send me your photos, can't promise anything, but will have look. Send to petermiles(at)westnet.com.au

[@mrtechie6810]

Thanks! ❤

[@mikeerstad3705]

Peter, I have a friend with the exact same squeal... I'll forward your video to him....73 Mike

[@petermiles6557]

Hope he can sort it and keep another 430 on the air....

[@mackley21]

i use a frosted bright led so it spreads the light i just done a ts 830

[@mrtechie6810]

Rx is intermittently deaf on 60m/80m. I'll check the bandpass relays.

[@danterossi6180]

good morning, I have a kenwood ts 430 it works only in rx on all bands, but unfortunately pressing the microphone carrier does not transmit any power. What could it be ?

[@danterossi6180]

model kenwood ts 430 s

[@petermiles6557]

Could be anything in the transmit chain, however it is also likely to be something simple like a dry joint or bad lead connection. Try the simplest least expensive fixes first like as in the video unplugging and re-plugging interconnecting leads and then move onto an inspection of the pcb tracks, looking for cracks around component solder points and you will need good eyes. Good luck and keep us posted.

[@danterossi6180]

@@petermiles6557 hello I checked all the welds of the various cards that do not have cold welds, the connections I disconnected and passed with a special clean contact. but nothing goes in transmission. the peak that receives very well on all bands but no transmission 😢 😢 😢

[@petermiles6557]

My best advice at this stage is that you need an oscilloscope to track the signal through the radio to where it stops. Most importantly you will also need a block diagram, a schematic of the radio and spend a lot of time working out a divide and conquer strategy. Spend time get familiar with the radio layout and how it relates to both the block diagram and schematic as blindly probing around can accidentally cause serious damage. Spend a lot of time planning what you intend doing........ Another video worth having a look at is 'Kenwood TS-430S Maintenance and Adjustment' by Frank Evoked kzbin.info/www/bejne/i2aZfmx4opKEgpI

[@virutillaspino]

I already got them thanks, greetings ..

[@philippeclaudeville4960]

Hello, I would like to replace the 14 relays on the filter unit board (X51-1290-00) of my TS 430S KENWOOD. I would like to know the voltage 12v or 9v before buying them? ?? . A video on you tube shows the replacement of these relays by Omron 9v? The ref on the nomenclature does not specify their voltage. Thank you in advance for your help and your answer 73 Philippe

[@petermiles6557]

I had a look at the schematic and there is no indication that it would anything other than 12v, I also found an add for replacement relays for the TS-430 and the coil voltage was 12v. I would think 12v relays would work fine at 9v, however if you want to be sure I guess the best ways is to measure it, I will be checking it the next time i have it open. Cheers

[@philippeclaudeville4960]

Thank you Peter, I also think that they are 12v relays because on the covers of the relays we read 211A DO12. What put me in doubt is this video kzbin.info/www/bejne/m3S8k2Rsfp6qr8Wju the om replace them with a 9v version? .He may explain it but I don't understand Spanish fluently! I just found Omron G2R-187-M-US 12v relays compatible with Fujitsu originals at $ 25.51 for 5 pieces with no shipping costs from China.

[@petermiles6557]

May look at getting some of these relays. The relays are are still working fine after the 2 years since the restoration, but I don't think they will last forever. Why you replacing the relays instead of cleaning the contacts?

[@philippeclaudeville4960]

@@petermiles6557 it is becoming difficult to find an equivalent type of relay in Europe. The relays work in pairs. I want to get at least one pair in advance for the band I use the most, that's why I went to China and that I found on the Ali express website but not yet ordered. I got a specific kit for the ts430s of Japanese 116 pcs electrolytic capacitors to replace and a bigger battery than the original

[@rick5078]

19:18 which product are you using to clean the relays? just a general purpose electronics contact cleaner?

[@petermiles6557]

@@rick5078 Just a general purpose contact cleaner.

[@rick5078]

@@petermiles6557 thank you :)

[@ethicalfarmer7424]

Good job!

[@Subinraja4]

Hello.. I have kenwood ts850sat. Today my rig doesn't doing RX and TX... Only rx in fm amd am.. May I know what is faulty.. And how much its cost to repair

[@ewaltbouwer3793]

thanks Peter i can now fix mine with the same problem

[@1kzrider]

I had a 430 given to me as it was non working. I had some people look into it stated it is the PA board. Could this be repaired or rebuilt even? Trying to find this part has been so difficult. And when I do the cost people want is close to cost of radio.

[@petermiles6557]

It is worth checking what is not working as my experience with 430 was that most of the problems were simply oxidized connections. I had a TS-930 that stopped transmitting completely and my first thought was that it was a serious tx board issue like the finals, but it turned out to be nothing more than a oxidized coax connector feeding the tx board. I guess my best advise is work your way through the radio with a scope until you find where the signal stops and then work out what you need to do.

[@fnordist]

Apply 13.8V DC over a 10W 28Ohm Resistor to the Antenna Input and press Up band button for like 5 minutes to clean the filter relais.

[@petermiles6557]

I am aware of this technique and had the resistor ect to carry it out, however decided that radio was in such bad condition and as I had it well and truly open i opted for the relay clean that I believe was more likely to produce better results.

[@fnordist]

@@petermiles6557 Yeah i had to clean the filters at least once every 5 years manually, too much gunk but now it works like a charm

[@markanderson8066]

Mine has an extra circuit at the coax connector - a small terminal strip with an RF choke. There is also a DC blocking cap between the coax and the input to the relay board! So to do the DC trick, I'd have to apply the voltage inside the rig. Sadly I have the no transmit problem and and attempting to resolve that. :(

[@aussiebeardsman1267]

Nice work, I am new to this stuff. I have similar recieve issues. I also have limited output on some bands also. I'm hoping its relays and such. Couple questions. Did you use any lubricant on any of the boards and pots? Also did you identify any dry solder joints. Cheers mate. Great video!

[@petermiles6557]

No lubricant, just a small amount of contact cleaner when cleaning the board inter-connecting wire connectors. No dry joints found, however a few suspect electrolytic capacitors were changed out and it is possible that a dry joint was inadvertently repaired doing this, but not likely. I think dry joints would more likely have occurred in the PA where there would more heat cycling stress on solder joints, luckily there were surprisingly no issues in the PA stage in my radio. Your low power may be dry joints in the PA stage, but do the easy work first and check for poor connectors through out the radio as this my fix the power problem. Let us all know how you go..... Cheers and thanks for the comment.

[@fredguitarman3536]

I just acquired on of these and was looking through videos saw where you can clean the contacts with a 12vdc and a 20 ohm 5watt resistor by pulsing the current through the antenna connector to ground say it burns off the oxidation on the relays after 5 minutes or so ill try it first see if it works i think your method is better just FYI

[@petermiles6557]

I had the resistor(s) and was going to try the 12v method, however thought that the situation was so bad and had the radio open for all the other issues, so I decided to manually clean the relay contacts.

[@mikeZL3XD7029]

@Fred guitarman, I would be rather careful doing something like that, introducing 12V through the antenna connector has the inherent risk of damaging the whole front-end of the radio, some of them bits in the line are quite sensitive to voltage of that amplitude. Cheers, Mike ZL3XD.

[@petermiles6557]

Also see: A non-invasive procedure to clean filter relay contacts of high resistant oxide contamination www.youtube.com/watch?v=O6yf3...

[@rodneydonahue]

Do you know of a place a website or anything else where I can get final drives for my 430 S Kenwood

[@petermiles6557]

Sorry not sure

[@Alessioalessio-qv1ff]

440 vs 430 wich is better?

[@johnvangeffen269]

Ferry nice job

[@karwan6995]

❤❤❤

[@CanaldoToddyn]

para que serve essa bateria de 3.6 volts grande?

[@rick5078]

alimentación del modulo de memoria. de la fabrica te viene el radio con un bateria CR2032 en vez de una bateria 18650 asi como esta puesto en el radio del video. Tiene mas capacidad esa 18650, pero creo que habia sido mejor reemplazar el cr2032 de la fabrica con una portabaterias para cr2032 y una cr2032 nueva.

[@tf7274]

First thing to do is to grab a heavy book and prop it against the band switch...let it cycle for 15 minutes...

[@akhmadsukandi7454]

I have 2nd hand 430s, my problem is the s meter doesn't work moving right as it is receiving a signal, anyone voice, any idea please, thx de YC1DGR

[@petermiles6557]

I would first do a general clean of all plugs and connections per the video and you most likely sort the problem with the meter.

[@drbnewberry]

Nice job!

[@jeep146]

If your working on this rascal take plenty of pictures before you start removing connectors. Many are not keyed and it's real easy to put one back on the wrong pins.

[@alessioschiavone3898]

it packs alot more stuff inside than my ts 440

[@alessioschiavone3898]

and also sounds cleaner in receive

[@marcodecaprios6893]

Very good job. I Just buyed an old 430 S and this video will be usefull for me (but I hope to don't use it !).

[@joseabrahaoabrahao7937]

Belo rádio..

[@wilnerphanor6283]

Bonbagay

[@davidcandra3352]

6

[@CT1JRZ]

Nice job!