In this episode we have to cure a heavy selfoscillation on SSB.
Пікірлер: 187
@StanleyWayne-be3qy Жыл бұрын
Thank you for the detailed repair video. My IC-756 Pro II had a similar problem. It wasn't self-oscillating - it actually generated a 30 amp short and did not transmit any power in TX mode when the RX attenuation was 0 or -6dB. When -12 dB the radio transmitted fine. So there are other symptoms besides self-oscillation that can manifest themselves when the RX line is not properly grounded during TX mode. I pulled Q25 and D22/D23 and they all tested OK , which was disheartening. I replaced them anyway using a hot air soldering station - first time working with SMD that small. Guess what? That fixed the problem. The radio now works perfectly! Transistors that fail testing are definitely bad, but that doesn't mean the ones that pass are actually good. Glad I replaced the lot anyway.
@capt.mike73ahoy147 жыл бұрын
Excellent tutorial Peter; your test bench is a technician's dream! Keep up the good work, Regards, Mike
@TRXLab7 жыл бұрын
Thank you Mike 73
@technos1238 жыл бұрын
Great repair Peter and thanks for saving such a beautiful radio from the dumpster. Robert.
@TRXLab8 жыл бұрын
Thanks again for watching Robert! 73
@MrCarlsonsLab8 жыл бұрын
Great troubleshooting Peter. You can see the evidence that somebody had their iron in that thing.... at 22:14 there is a small burn on the orange trimmer cap in the background. I have dealt with many company's that say they can't repair their own items.... That's really embarrassing for them! Maybe these companies should pay their employees a little more and actually get the job done. The problem is..... Most people in a large company's "HR" don't know a wire from a macaroni noodle. But they know how to read a pretty resume with lots of useless writing on it. *Look past the politics!* If Icom is listening..... Stop looking at paperwork, and start testing your employee's at interview time. Your goal Icom: Seriously now......Give them a test, *This is great fun,* throw some resistors on a table in front of them (the ones with color bands) if they can identify every one at a glance, your on your way.... If they can modify your test, or circuit design right in front of you, you "just about" have a keeper, The last test: hand them a cold soldering iron, if they grab the handle instead of the element..... You have a WINNER :^)
@TRXLab8 жыл бұрын
Hi Paul, can't agree more. To many cost saving programs all 2 years reorganisations, HR really has no idea what's going on and board of management tries to lead a company by watching out for figures only. I have seen that for many times and the result was always the same....Thanks for stopping by 73
@dalebrooks68168 жыл бұрын
Paul, One way manufacturers could handle older electronic equipment is by offering repair exchange parts. By doing this you only need a small group of very experienced Tech's to repair boards on their shop schedule and not the customers. You keep several boards that have already been repaired on the shelf and as customer need repaired boards you install and sell the boards based on repair costs and profits. The old boards go to the tech for repair when they get a chance at them. Results in happy customers""""" what a concept... Dale KG7SSB Tucson.
@seanregan7306 жыл бұрын
Mr Carlson's Lab how many times do we come across this with technology and cars where the manufacturer is so big that the service dept can't keep up with their own products and even seem to struggle service for older products Shame on you Icon.
@mattw34066 жыл бұрын
It is an iron mark - look again at 22:08. There's actually a few oopsies in that area.
@lyntonprescott34125 жыл бұрын
Mr Carlson's Lab I may be able to pass your test Paul. That would be a disaster for any radio company 😂.
@TheRadioShop8 жыл бұрын
Great troubleshooting Peter. It is good when you already have experience on what to look for. It is so ashamed that ICOM EU could not fix the radio. Tells me they did not even try. Good thing is there are folks like yourself, Paul, and Mike out there that can fix them.
@TRXLab8 жыл бұрын
Hey Buddy you forgot yourself!! Thanks for stopping by my friend 73
@lyntonprescott34125 жыл бұрын
Fantastic work sir. You really are the master! You repair things that the manufacturer cannot. Unbelievable. 73’s Lynton.
@dalebrooks68168 жыл бұрын
Peter, I own a late model ICOM but after seeing the kind of support they offer for repairing older equipment it makes me wonder if I should just buy radios I can easily repair. Ham radio began by building your own equipment and putting it on the air. Maybe we'll go back to that concept. Great job Peter,,,,,,,,,,,Dale KG7SSB Tucson
@TRXLab8 жыл бұрын
Yeah Dale may be we are rally going back to that.. Thanks fro watching 73
@towerman75 Жыл бұрын
Your comment is valid. Manufacturers today aren't concerned about repairs, just sells. So as long as we have dedicated technicians as yourself, the electronics of yesterday, will survive. Job well done.
@heinerrambold88898 ай бұрын
With this minor fault I do not suppose that Icom could not fix it but rather did not want to fix it. Thanks Peter for the instructive video!
@TRXLab8 ай бұрын
most likely
@samaitken58193 жыл бұрын
i remember when studying for radio electronics teacher put eletralitic cap the wrong way round i asked is it on the right way he said yes with a smile then asked for all of us to step back . big bang i never knew so much was in the cap he said in classes not a lot of students corrected him and congradulated me and said to the rest be observent and double check your work before power up enjoyed you videos
@TRXLab3 жыл бұрын
yes teaches seems to do the same all over the world lol
@tpobrienjr5 ай бұрын
I have the same radio and find that it is the best I have ever owned. Thank you for the troubleshooting video.
@jonka16 жыл бұрын
Shame on the makers who can't fix it (or can't be bothered to look properly). Congrats to you on another well considered repair.
@mrquick19377 жыл бұрын
Peter, you are very talented. Wish you were in US if I ever needed a repair!! Thanks for ALL your outstanding, precise, videos!
@TRXLab7 жыл бұрын
Thank you :-) 73
@hancecrawford6 жыл бұрын
Peter, I think you are right ICOM are not interested in repairing but rather sell you a new radio, interesting that there were so many faulty components sometimes these companies just want you to buy new and you were right so embarrassing for them saying they cannot fix it :)
@TRXLab6 жыл бұрын
Yeah that are the truth...73
@GeorgeEI7KO8 жыл бұрын
Great video Peter. Typical.... "we can't find the fault" well maybe if they bloody looked for it. I bet they didn't even take the lid off. Great video
@TRXLab8 жыл бұрын
LOL yeah may be....Thanks for watching George! 73
@iw0hex8 жыл бұрын
Hi Peter. I repaired an IC-746PRO, IC-756PROII & IC-756PROIII with the same faulty. Another problem with this faulty is in RX, you have a big QRM without antenna !!! Thanks for you video, compliments. Regards de IW0HEX Pasquale.
@TRXLab8 жыл бұрын
Hi Pasquale, yeah and there are some more problems with this radios. Sometimes simply annoying..Thanks for feed back 73
@dennispeake18778 жыл бұрын
Thanks Peter for saving a radio that could not be fixed. Another good video mate. A good share for our Icom radios. 73 best to your family.
@TRXLab8 жыл бұрын
Thank you Dennis, we never give up ;-) All the best 73
@nighthawkmajor8 жыл бұрын
Thanks Mr. Peter another awesome video. I always take away a little more information with every video you do. Learning a lot your a great teacher. Thanks 73
@TRXLab8 жыл бұрын
Very good, glad that you have a use for my videos..Thnaks for comment 73
@larryk4mu2408 жыл бұрын
Hi Peter, good video. I always like the way you step through the problem, and then do the same for the repair. I have watched all your videos and hope there will be many more… 73
@TRXLab8 жыл бұрын
Thanks for the kind words Larry! All the best 73
@DonDegidio8 жыл бұрын
Peter, Another nice repair video. With those components so small, good thing you didn't sneeze. You would never find them. :-)
@TRXLab8 жыл бұрын
LOL yeah you are right those components would be lost for ever! 73
@mrkattm8 жыл бұрын
As always, an awesome job walking the viewers through the troubleshooting process, seems so easy watching you do it. I think the key to making it look easy in this instances was recalling that you had a similar issue before, I guess it must be true that there is no better teacher then experience.... Don't worry Peter I still consider you the second best thing ;O) Again, thanks for doing these and sharing. 73
@TRXLab8 жыл бұрын
LOL, very good thank you Michael! All the best 73
@montygore2 жыл бұрын
Great work Mr. Peter
@TRXLab2 жыл бұрын
Thank you
@toddanonymous52958 жыл бұрын
Another brilliant repair Peter. But no one is surprised by that. It is a given. Just a thought. If the radio companies won't service them and the technical ability of the average ham is less than years past, the future looks bright for the independent repair techs. Glad I own a stereo microscope in case there is a transistor hiding under a spec of dirt. How much smaller can parts get before they disappear !
@TRXLab8 жыл бұрын
Hi Todd, well most likely we will not get any service documentation in the future so no bright future for independent techs..All electronics will most probably go into the waste after fault.. And yes good to have a microscope yeah how much smaller can parts get lol. Thanks for watching 73
@dougmcartin38818 жыл бұрын
Hello Peter. Enjoying your repair videos very much. Unfortunately these radios, although they were very expensive at the time (at least to me) are considered consumer electronics and are therefore disposable. The factory repair centers do not consider it cost effective to trouble shoot at the component level assuming of course that they even have the staff who are capable of doing it. They replace boards and after a number of years they just stop supporting the radio. Its a great thing that there are guys like you out there who can show us how to do it. All the best and keep up the fine work.
@TRXLab8 жыл бұрын
Hi Doug, yes you are right! Finally we have a piece of consumer electronic here...Thanks for stopping by 73
@PapasDino8 жыл бұрын
Nice fix Peter. I was a little surprised that you weren't that concerned with the larger resistor that was overheating the PCB around it. Interesting about Icom Europe, I had my IC-910H repaired just in 2014 by the Icom repair center in Michigan and I think it predates the Pro III? You may be right about marketing though; there is a great repair operation on the West Coast of the U.S., Malcolm Tech Services, that still works on really old Icom's - he actually repaired my IC-211 2m rig in the early 80's and recently repaired a friend's vintage Icom transceiver (I was surprised he was still around but glad to know it!). Your customer is very lucky to have you on his side! 73 - Dino KL0S
@TRXLab8 жыл бұрын
Hi Dino, no not really have seen this overheating on ICOM boars quite a couple of times. It is not nice and it could have been better designed but finally it will not kill the pcb. Good that there are still repair centres which have a good quality. Thanks for watching 73
@Beretta96Dan8 жыл бұрын
Hello Peter! I think you hit the nail on the head. It is better for them to sell new gear than repair the used equipment. At least more profitable. As always, I enjoyed the video and always look forward to your new ones. Thanks! Dan w4mnc
@TRXLab8 жыл бұрын
Thanks for stopping by Dan 73
@PelDaddy8 жыл бұрын
Thanks for sharing. Some day I will have time to get my ham license. I still enjoyed the troubleshooting. Well done.
@TRXLab8 жыл бұрын
Thanks for watching 73
@thomascott74256 жыл бұрын
Yes indeed very well done. It is almost criminal to have someone at Icom say that they can't fix something. Thank God that the owner contacted you. It is unprofessional that Icom Europe sent the unit back unrepaired. In my humble opinion, a factory authorized service center should only be second to the design section of a corporation. Again, good job.
@gvvq-pi5ml8 жыл бұрын
Very good job Peter, i am surprised Icom couldn't fix it, or wouldn't fix it....from Fred in UK.
@TRXLab8 жыл бұрын
Hi Fred, well we never know. Thanks for stopping by.73
@mikesradiorepair8 жыл бұрын
Good repair Peter. Sad when the manufacturer can't even repair their own products. More interested in making money selling new products than providing good after the sale service. I like Dino was a little surprised you were not concerned about the cooked power resistor.
@TRXLab8 жыл бұрын
Thanks Mike! Well as I already answered to Dino. Have seen it quite often on Icom boards. Could have designed in a better way but finally will not kill the pcb.. 73
@douro207 жыл бұрын
A power resistor mod would be in order! I'd put in a high-power chassis-mount resistor to replace the one which has charred the PCB.
@andyg89668 жыл бұрын
Thank you again Peter, just ordered a pair of the probes via TME & should get them mid week.
@dennisqwertyuiop8 жыл бұрын
Great repair! thank you Peter for doing videl
@TRXLab8 жыл бұрын
Thanks Dennis! 73
@mikebarton93248 жыл бұрын
thanks for your great vids i couldnt hope to repair such tiny parts. i was in electronics 50 years ago when they were a bit bigger but find your vids so interesting and informative
@TRXLab8 жыл бұрын
Hi Mike, thanks for feed-back. Yes the components are getting still smaller and smaller, Where will it ever stop?? All the best 73
@JKERRI18 жыл бұрын
Another excellent video Peter keep up the good work. I am sure the owner is over the moon these things aren't cheap and a lot of amateurs are on a budget .
@TRXLab8 жыл бұрын
Thank you John. All the best 73
@PaulHigginbothamSr3 жыл бұрын
In my view I am not sure why the fault was not found. You used logic and in the intermediate part of the repair I did not see what your next step would be which I usually know what you are going to check next. So good work sir. Saving another which is most excellent.
@butreskanal8124 жыл бұрын
Well done , good technical explanations and I am enjoy to watch this video. 73
@docfoot3164 жыл бұрын
Well done on the repair ,top person ,and just love ur set up of test gear.
@chrisscott15472 жыл бұрын
I didn't know Peter Lorre was an electronics genius!
@WN8HGZ8 жыл бұрын
You are correct on your observations I had an icon 8 years and icom told me the same thing it was a 1200 dollar radio and they could fix it radio was only 6 years old so I junked it and from that day forward don't buy icom products. Thanks for your comments you were right in. Brian from the USA
@TRXLab8 жыл бұрын
Hi Brian, very interesting info, so it not only in Europe..Thanks for watching 73
@philkennedy3424 жыл бұрын
I watched a lot of your videos very informative and honest nice think like a number of companies these days would more than likely sell you a new radio than fix the one you have big thumbs up from the uk... M6dnu....
@MrKelendros3 жыл бұрын
Radios and the most of other electronic devices. They does not offer easily service manuals, dont sell spareparts, only whole boards replacements (and with prices that are over the 50-70% of the cost of a new one obiously.....). Yes, most of the companies, marks a device as obsolete after few years and they are only interested in selling a new one. Really sad, but its the way most of them are following from some years ago.
@jpmiller80984 жыл бұрын
I am curious about two things. Why did these components fail? Was there an arc-over due to high SWR or miss operation of the radio or is there something about the switchover design that has a weakness? The second is what is the function of the power resistor that had a scorched board below it? Was it in any way damaged by the same event that damaged the three components? You were unconcerned and of course could see much better than I can in the video but I am always curious to know why something failed in the hope of preventing it from happening again.
@glaros08 жыл бұрын
LOL, Icom Europe couldn't repair it! Excellent job Peter, 73.
@TRXLab8 жыл бұрын
Thanks Kostas 73
@davequick33736 жыл бұрын
As always I learn from your videos. Outstanding work!!! Do you accept repair requests from the USA? Obviously the unit would have to be shipped both ways at my expense. Thanks for sharing. 👍
@toykry79315 жыл бұрын
Sei il miglior tecnico....
@orvilnunez21818 жыл бұрын
Great repair. Thanks for the all the great videos keep up the good work.
@TRXLab8 жыл бұрын
Thanks for watching and stepping in 73
@WN8HGZ6 жыл бұрын
Fantastic video man that is very good Wb8idy myrtle beach south carolina
@TRXLab6 жыл бұрын
Thanks for watching 73
@joebell11507 жыл бұрын
Hi Peter, had the very same problem come into the service centre here in NZ, Client also told not repairable>>>> Not many people realize there will not by any vintage radio sets or cars in the future as once the software disappears, be it firmware or mask programmed, the equipment will turn into a house brick. It takes a lot of time and effort to backwards engineer solutions in such cases. 73s Joe G4PMY / ZL1PMY
@TRXLab7 жыл бұрын
Hi Joe, yes you are absolutely right and there is not much we can do....Thanks for watching 73
@ovnibus_cx3cp6 жыл бұрын
Hi Peter, very nice Job have you doing here, But if the official dealers reject fixing RIG´s that should be a good news for you, your customers and your bench.. keep up fixing ahead and 73 de CX3CP
@jozefbezan2501 Жыл бұрын
Danke für das tolle Video.73,von Jozef S56CJG,QTH Wien.Österreich.😊😊😊
@TRXLab Жыл бұрын
freut mich das es dir gefällt
@andyg89668 жыл бұрын
Hi Peter: Apologies for the delay in replying to your message, been having mail problems. Thank you for the reply & information, much appreciated. I will have a go at getting some of the probes, they look excellent. Regards: Andy
@TRXLab8 жыл бұрын
Thanks for feed back Andy! 73
@N1RKW8 жыл бұрын
Well done as always, Peter! I find it very sad that the "factory" technicians couldn't find the faulty components. It seems (in retrospect) to be such an obvious and easy issue to find. Makes me wonder what, if any, training Icom is offering their techs.
@TRXLab8 жыл бұрын
H,i yeah you are right it always looks pretty easy on a video but it took a while until I found this problem first time... Thanks for stopping by 73
@N1RKW8 жыл бұрын
I didn't mean to imply that it's simple or easy to find faults like that without having already experienced that particular issue. I apologize if that's how it seemed. Radios are complex devices and no repair is simple if you haven't seen a given problem before. I meant to say that a "factory trained" technician should have a list of potential problems and solutions that should include this particular fault, which is really quite simple if you already know where to look, as you did in this case. My definition of a "simple" radio repair is any repair that I believe that I could actually perform. :D Thanks again for all of the great videos. Please keep them coming!
@TRXLab8 жыл бұрын
No No Adam, no worry I didn't get it that way! No reason to apologize! For Icom it should be a easy repair as it is not unknown over the years. And if you follow the mods on this particular portion right from the 756 over to Pro1 and up to the Pro3 you see that they should know this problem.... Thanks for comment!! 73
@N1RKW8 жыл бұрын
Thanks, Peter. Glad to hear it. And thanks again for providing such an excellent resource for those of us trying to learn the craft.
@bobclarie8 жыл бұрын
As always, I learned a lot , keep up the good work Peter ! '73 Bob
@TRXLab8 жыл бұрын
Thank you Bob! 73
@707061756c698 жыл бұрын
Good repair video again. The R58 varistor could have been changed also, as it has suffered quite a bit of stress from excessive voltage from over power (~90V rms vs 70V rms for normal power; this seems to be the cause of over heating of R58). Varistors apparently fail in three different ways: short, open or become a linear resistor. I don't think that there is anymore any protection for surges from antenna unless the varistor is changed. (Also the charcoaled pcb area could be examined, so it doesn't cause any leakages in the future)
@TRXLab8 жыл бұрын
Thank you for watching and comment. And thanks for the hint. Basically you are right and this component should be tested and I will have an eye on that but on the other hand varistor's are very questionable in the portion of this circuit. They can of course handle 100++amps but they are simply to slow for fast transients...73
@707061756c698 жыл бұрын
There may not be any worries at all. The R58 seems to be in suspiciously good condition when you look the "skid marks" on the side of the relay next to it (see 19:23). It may have been changed already. Unfortunately you cannot get any data for that varistor as it is an icom oem type, but there are varistors which are rather fast: response time of 20ns, according to Vishay bcc components [originally Siemens if I don't remember wrong]. Just wondering why they didn't use a bidirectional TVS for protection (possibly less capacitance and faster response). (My 25+ year industrial electronics design background makes me just wonder what they were protecting the circuit from, lightning induced surges (8us/20us waveform) or what? And why the protection was placed in that point of circuit. Good learning point for a designer :) ) Keep up good work for salvaging good equipment from getting dumbed into recycle bin. 73
@JamesP60847 жыл бұрын
Great Video as usual Peter, looks like again someone was there before you could see the burn marks on little trimmer cap. 73's VK6NJP
@TRXLab7 жыл бұрын
Yeah this radio had an manufacture shop visit before...Thanks for watching 73
@11122233331118 жыл бұрын
Icom Europe: fail good working honest repair you've done
@TRXLab8 жыл бұрын
Thank you 73
@XPFTP5 жыл бұрын
5 5 2019 picked up a 756p3. had this issue only on 6m.rest of the HF bands are fine. called icom.. told its my antenna as it only does this on one antenna out of 3. key up on 6ssb not am and ALC goes full scale and no audio out no output power. 4 secs later it TX. i did the little trick you did peter with 6 and 12 db so on .... 6db stoped it. i spoke to a guy on west coast of states. for repair.iam thinking price range with round trip mail. 150 bucks. so have to think on this as if adding the 6db stoped issue. how bad it owuld be to not fix it. but wanting to understand the issue better.. your video has done just that.. heck i may give this repair a go.. what ive learned from you and the other guy hahahhah Mr Carlson. and just out rite comman cents.. hahahah .. only issue i see for me is ... i dont have a hot gun. but i guess i could make a 2 tip iron tip. or ill check for videos on it.. but at least you showed me the issue and fix...
@CT2GQL2 жыл бұрын
TKs for your`s videos 200%👍
@hdmalpas8 жыл бұрын
You have put Icom to shame, another great video, Peter.
@TRXLab8 жыл бұрын
Thank you Howard 73
@bundylovess8 жыл бұрын
Good job mate big thumbs up
@TRXLab8 жыл бұрын
Thank you Allan 73
@michaelcornet5068 жыл бұрын
Great video and repair again! Nice explanation to as always. (You should promote your shop if icom is that bad what a shame on them!)
@TRXLab8 жыл бұрын
Thank you Michael! All the best 73
@glynnhm0lsg3088 жыл бұрын
Another great video I did notice that you left the att on I was shouting at the screen lol
@TRXLab8 жыл бұрын
LOL but realized it early enough.. 73
@WN8HGZ6 жыл бұрын
It is a sales a sales strariage they did the same thing to me best video please keep it up I don't buy incom for that very reason. Thank sooooo much brian Wb8idy myrtle beach
@TRXLab6 жыл бұрын
lol yeah....
@charlieoscar098 жыл бұрын
Thanks for the video again Peter...Shame about Icom i suspect it was a sales pitch but it can backfire as the customer could walk away from Icom.I would.Well done with the fix another happy customer.
@TRXLab8 жыл бұрын
Yes backfire can really hurt...Thanks for watching 73
@randybehrmann54548 жыл бұрын
Great repair. What is the chance that you could contact Icom Europe to let them know about the fault and what the repair was so that another HAM doesn't receive the same treatment from them? However I do agree that Icom should have people working there that should be able to find something like that and repair it. That is inexcusable for a manufacturer repair shop to turn a radio away like that.
@TRXLab8 жыл бұрын
Hi Randy, more and more it looks like that they don't do component repair level any longer...But this is an assumption only.. Thanks for watching 73
@hancecrawford5 жыл бұрын
Peter on the radio I didn't see the power meter working was that power resistor which was showing heat damage on the PCB were you where working in that area was it ok underneath just wondering as a matter of interest? but Icom are only interested in selling new products its the same with Computers to as well, but it is a joy even when I saw this video before you notice something difference but a joy to watch an electronic engineer at work :)
@TRXLab5 жыл бұрын
Oh John can't remember need to look into it sorry
@1903A3shooter8 жыл бұрын
GREAT JOB, good way to learn more, thanks W4GSM
@TRXLab8 жыл бұрын
Thanks for feed-back 73
@jimbo398a6 жыл бұрын
Hi Peter thank you for posting this repair. My IC-756 Pro II has a similar problem which only affects the six meter band. What are your thoughts as to whether these components will also fix this problem. I do not have a service manual and would appreciate the part numbers of these three parts. I just bought this rig a few months and did not discover this problem until the six meter band opened the other day. Thanks again for this video you are a brilliant tech.
@jimbo398a6 жыл бұрын
I did find the service manual on line and if anyone needs the part numbers of the three components required for this repair here they are: Q25 is 2SC4213-B (TE85R) the pin diodes are both MMBV3700LT1 AND R58 IS 2P-50A-301
@TheLightningStalker4 жыл бұрын
I have this exact same problem but the radio also has attenuation in the middle of the receive pass band and is only putting out 4W
@VK3CSJ2 жыл бұрын
Thanks Peter, that was most fascinating, being owner of 2 PRO3's this is most valuable information. I wonder what might have damaged those components possible local Lightning activity?....btw when pronouncing "MIC" its the same when saying "MICrophone" you don't say "Mick"....just a little thing...;)...cheers Clint - VK3CSJ Melbourne...
@TRXLab2 жыл бұрын
Thank you!
@Aleziss5 жыл бұрын
39:18 I sent my BRAND NEW IC7300 to Icom Toronto in Canada for a crooked display panel, assembly problem not even an electronic problem and I was also really ashamed of what happened... the technician that open the radio used a lawn mower to unscrew all the screws, they were all chewed up, the front of the radio was badly reassembled, could not press on some of the button without pressing so hard that it made the display change color... and speaking of display, instead of being crooked, in was now shifted to the right.... I sent the unit in original box in untear original bag. Of course, when I got the radio back, the bag was all torn out, box was dented and styrofoam were cracked... I don't understand how a technician can work like that at Icom and keep his job... AWEFUL technicians that absolutely did not care at all for what he was doing, I cannot beleive a tech would do such a damaging and badly done reassembly and say "meh... that looks ok... let's go take a beer now"... I had to send the radio then at Icom Canada in BC, which I had to pay again for shipping at that was a brand new radio ! I've got a replacement radio after 1.5 month of shiping, wait for "repair", ship back and BC is costing a lot of money to ship with the insurance... I've got a replacement radio that seem better, can still see a dent in the faceplate but the screen is not crooked and all the keys work... Icom, beautiful radios but man, the repair center technicians in Toronto are sooo freakn bad, I can't beleive they would "play" inside a 7851 at 15000$... And now you say this, Icom could NOT find the fault ??? Come on... of course they want the user to buy a new rig instead of fixing it and give many more year of usage with a couple parts and 200$...
@followthetrawler8 жыл бұрын
Peter were you not tempted to raise that power resistor up off the board to reduce the charring?
@TRXLab8 жыл бұрын
Definitely not a bad idea! Thanks for watching 73
@spencercheung71548 жыл бұрын
Well done and good job!
@TRXLab8 жыл бұрын
Thank you for feed-back 73
@hancecrawford5 жыл бұрын
Peter it shows you are much cleverer than ICOM it doesn't say much for ICOM engineers they couldn't repair the radio but you did we live in times some companies take the easy way out and want you to buy new radios peter it is very sad :(
@Billblom5 жыл бұрын
bench techs do the repairs, not engineers. The engineers are mostly in Japan. The problem with the bench techs: they need training and lots of experience to do their job. Typically if a part catches fire, they can figure out that one part. And 90% of the time, all they do is swap boards.
@andyg89668 жыл бұрын
Hi Peter: Excellent information as usual, could you tell me the make of the probes your using on your multimeter please ?. The tips look lovely & thin.
@TRXLab8 жыл бұрын
Hi Andy, it is from Hirschmann Tip Lab program typ PRUEF 2610-FT.. Not sure if you can get it in your country.. 73
@JesusIsLordofMybeing6 жыл бұрын
Yes very very embarrassing. Thanks for ur awesome videos!!
@carlbill94913 жыл бұрын
could you please tell me why the power on (red led) display light is not on.. is it a setting on the radio..
@TRXLab3 жыл бұрын
sorry too long ago I can't remember
@jamessawyer46257 жыл бұрын
Good job in finding the problem when IC could not or would not. hihi.. Do you have any info on a IC 756PRO dealing with the tuner/control board? Mine has to be rebooted to work somewhat and the tuner always tunes when you key the radio. My 15 meter antenna trap, while working dx, flashed over causing a flash in my amp when this all started. ( Its like being in a contest with other band operating getting high power into the radio).any clues? JIm
@TRXLab7 жыл бұрын
Well may be a ground issue but would need to see it on the bench for diagnosis.. Thanks for stopping by Jim 73
@k5azebud9887 жыл бұрын
I agree with you, Peter
@andypalm70616 жыл бұрын
Wonderful work. I'm seeing this in'18 but....my gosh,Icom said it was a total loss??? That is almost criminal at the price of that system. disgusting. But are other brands any better??
@TRXLab6 жыл бұрын
Thanks Andy! All radios have from time to time technical issues the difference is how the factory support performs.. In this regard I prefer Kenwood and Yaesu. 73
@11122233331116 жыл бұрын
Burnt *R58* is 2P-50A-301 a Gas Discharge Surge Arrestor
@KD0LRG8 жыл бұрын
Big shocker they couldn't find the fault. Maybe they should sub to your channel for a how to fix this. If I sent this in and they said they couldn't fix it I sure wouldn't buy another ICOM rig. With enough money sent to them they should be able to fix anything unless the parts are totally unavailable and no used parts are able to be sourced. I have a Kenwood 2000 I would love to send you to work on if the shipping wasn't so high. It would make a good video. Thanks again for the great video. Brian kd0lrg
@TRXLab8 жыл бұрын
LOL, yeah can't moe agree... Well yes to expensive to send overseas makes no sense.. Thanks for watching 73
@stevenkaeser85835 жыл бұрын
👍 Good job.
@stainlesssteel42603 ай бұрын
My icom 756 pro 2 won't power on any solution
@injet-car-nemreparacao74775 жыл бұрын
OLA,radio amador no brasil tenho um 756pro3. estou precisando do esquema eletrico .e o acesso au menu de serviço.ai esta meu email, si possivel,grato.
@ninaevans45018 жыл бұрын
Well Peter, another interesting little video. But I must say that I find Icom Europes attitude quite odd. Certainly NOT environmentally friendly either. Oh well, never mind. Thumbs up, keep making them videos.
@TRXLab8 жыл бұрын
Thank you Nina! All the best 73
@audiotecnologia40848 жыл бұрын
Hi could one day make a video of how to assemble a SSB Lab Monitor like this you have at the Bench?
@TRXLab8 жыл бұрын
Hi, this videos are already on-line. Watch video #17-#19. All the best Cheers
@11122233331116 жыл бұрын
where did you find the parts? the diodes are hard to find. thx
@XPFTP4 жыл бұрын
wonder part number and where order from for the 3 parts...
@XPFTP4 жыл бұрын
wonder before i go looking lol if someone will know part number of Q25 and the 2 diodes . before i can look them up lol
@coltronex5 жыл бұрын
I wonder what caused the problem in the first place?
@TRXLab5 жыл бұрын
good question but I believe it was a thunderstorm surge
@DJCaverna8 жыл бұрын
great fix ;)
@TRXLab8 жыл бұрын
Thank you Neto 73
@Mr_Meowingtons8 жыл бұрын
send this video to ICOM HAHAHAHAHA
@TRXLab8 жыл бұрын
LOL.. Thanks for stopping by 73
@radioholicy5 жыл бұрын
Fun-tastic:)
@cookiebeariscool8 жыл бұрын
Great trouble shooting and repair ........ shame on icon for not being able to repair this radio.
@TRXLab8 жыл бұрын
Thank you for watching! 73
@danielhowiesr.25933 жыл бұрын
Yes, they want to sell a new radio.
@ThePobolycwm8 жыл бұрын
icom uk repaired my 7400 the twice i have sent it
@TRXLab8 жыл бұрын
Good to hear that there are still good techs out there...73
@Aleziss5 жыл бұрын
I ordered a brand new IC7300 that had a crooked display in the window openeing and let me tell you, icom technicians in toronto are sooooooooo bad and careless at fixing their products... it took two weeks for repair, then received my radio back with all chewed-up cover screws, torn bags, broken styrofoam in my original dented box, badly reassembled loosed front radio face plate, scratched buttons, unpressable keys at the bottom of the radio and now instead of a crooked display, the assembly is shifted to the right of the window screen... the technician who worked on this should be terminated right away, it is totally unacceptable... how the hell can a technician say "meh... that looks ok... job well done... here you go sucker..." I had to send the radio again to icom canada directly in BC, took another two weeks WITHOUT knowing if I would get a replacement radio or a repair... sent numerous emails, videos, pictures to at least 4 technicians, branch directors and even the head director of icom canada, no answer... then I receive an email that my radio is on the way, STILL NOT knowing if it was repaired, what had been done to it... Finally received a new replacement radio... Brand new unit, lost it over a month, had to pay 50$ for shipping to toronto, had to fight to get free shipping to BC (that would have cost me at least 90$ with insurance)... I am glad it turned out ok afterall and the new replacement radio works well... but man, when I see these units said not to be reparable when it can clearly be, I am not surprised as they could not even fix a mechanical faulty assembled radio... not an electronic problem, a mechanical problem... Beautiful product, I like my 7300 but I am scared that if/when I will have an issue, specially with a complex 7300 (or imagine the 7610), they won't care at all and tell me : "meh, not reparable... no parts available... bye for now and good luck..." I hope not...
@TRXLab5 жыл бұрын
Well, yes what you are reporting here is something I have heard very often. They will only correct there behaviour if they feel consequences and consequences means much lower sales. As long we buy those products they will never change.....
@robwebster74067 жыл бұрын
ICOM caught with their pants down, looks likes they want to loss business with people :)
@TRXLab7 жыл бұрын
Hi Robert, well sometimes things are funny..73
@robwebster74067 жыл бұрын
Well thank god we have people around like you to help us out :)